Installation & Commissioning -...

TM-Series Installation & Commissioning Installation and Commissioning Amplified Links, Release 14.0 Rev A, 2009-12-18

IN COMMERCIAL CONFIDENCE Date: Doc. number: Rev: Prepared by: Approved by: Page

© Transmode 2009-12-18 IC-OA_COMM_R14 A 2 (82)

Transmode Systems AB © 2009 Transmode Systems AB [email protected] BOX 42114 All rights reserved. No part of this document Fax: +46 (0)8 527 675 99 SE-126 14 Stockholm may be reproduced without written www.transmode.com SWEDEN permission of the copyright holder

1 DOCUMENT ADMINISTRATION

The specifications and information within this manual are subject to change without further notice. All statements, information and recommendations are believed to be accurate but are presented without warranty of any kind. Users must take full responsibility for their application of any products.

In no event shall Transmode Systems AB be liable for any indirect, special, consequential or incidental damages, including, without limitation, lost profits or loss or damage to data arising from the use or inability to use this manual, even if Transmode or its suppliers have been advised of the possibility of such damages.

1.1 Document Revision History

Revision Date Description of changes

A 2009-12-18 First release for R14. Updates from R13. Small corrections in section 5. Addition of new TP in section 4.5, changes in sections 4.4 & 4.6. Addition of appendix section 7.

1.2 Abbreviations and symbols

ALS Automatic Laser Shut down ATT Fixed attenuator (optical) BER Bit Error Rate DCF Dispersion Compensation Fiber (equal to a DCU) DCU Dispersion Compensation Unit DCM Dispersion Compensation Module GUI Graphical User Interface (using the node manager ENM) OA Optical Amplifier OADM Optical add/drop multiplexer OLA Optical Line amplifier OCM Optical Channel Monitor OIU Optical Interleaver Unit OSA Optical Spectrum Analyzer OSC Optical Supervisory Channel TM Terminal Multiplexor TNDT Transmode Network Design Tool TP Transponder VOA Variable Optical Attenuator




1.3 Table of Contents

1 Document administration....................................................................................2 1.1 Document Revision History.............................................................................................2 1.2 Abbreviations and symbols .............................................................................................2 1.3 Table of Contents............................................................................................................3 2 General...............................................................................................................5 2.1 Introduction .....................................................................................................................5 2.2 Equipment in commissioning phase................................................................................7 2.3 Logistics ..........................................................................................................................8 3 First installation...................................................................................................9 3.1 Description of node types................................................................................................9 3.1.1 Principle TM scheme ......................................................................................................9 3.1.2 Principle OLA node .......................................................................................................10 3.1.3 Principle OADM node ...................................................................................................11 3.1.4 Principle ROADM node.................................................................................................13 3.2 Equipment.....................................................................................................................14 3.2.1 Introduction of Variable optical attenuator.....................................................................14 3.2.2 Introduction of Optical channel monitor (OCM) .............................................................15 3.2.3 Power Extender (OA26C) .............................................................................................15 4 Installation prerequisites...................................................................................16 4.1 Acronyms and definitions ..............................................................................................16 4.2 Features on amplifier boards ........................................................................................16 4.2.1 ‘Automatic Power Shutdown’ on Dual amplifier boards.................................................16 4.2.2 ‘Laser forced on’ on all amplifier boards .......................................................................17 4.3 Max gain setting on line amplifiers ................................................................................18 4.4 Power levels for systems with 6 links or less ................................................................18 4.4.1 OA10C/FG power levels ...............................................................................................24 4.5 Link loss tables for systems with 6 links or less ............................................................25 4.5.1 Transceiver groups .......................................................................................................25 4.5.2 Systems designed for Transceiver group A ..................................................................28 4.5.3 Systems designed for Transceiver group B ..................................................................33 4.5.4 Systems designed for Transceiver group C ..................................................................35 4.6 Power levels for long haul systems (7 links and more) .................................................40 4.6.1 Booster output power for long haul systems .................................................................40 4.7 Minimum number of channels in long haul systems......................................................43 4.8 Link loss tables for long haul systems (7 links or more) ................................................43 4.8.1 Transceiver groups .......................................................................................................43 4.8.2 Long haul systems designed for Transceiver group C ..................................................45 4.8.3 Long haul systems designed for Transceiver group D ..................................................47 5 Installation & Commissioning ...........................................................................49 5.1 Overview schematic installation procedure ...................................................................50 5.2 Installing long-haul systems (7 links or more) ...............................................................50 5.3 First Terminal Multiplexer node installation ...................................................................51 5.3.1 Transmitting path - Design with power amplifier ...........................................................51 5.3.2 Transmitting path - Design without power amplifier ....................................................54 5.4 Line amplifier installation...............................................................................................55 5.5 Second Terminal Multiplexor node................................................................................58 5.5.1 Receiving path ..............................................................................................................58 5.5.2 Transmitting path - Design with power amplifier ...........................................................61 5.5.3 Transmitting path – Design without power amplifier......................................................64 5.6 Second visit at First Terminal node...............................................................................65 5.6.1 Receiving path ..............................................................................................................65 5.7 Transmission verifying ..................................................................................................67 5.8 Installation of OADM .....................................................................................................67 5.8.1 First visit of OADM ........................................................................................................67 5.8.2 Second visit of OADM...................................................................................................69 6 Adding or removing channels in systems.........................................................71 6.1 Adding channels at terminal nodes ...............................................................................71 6.2 Adding channels at OADM nodes .................................................................................73 6.3 Removing channels ......................................................................................................74




7 Appendix...........................................................................................................75 7.1 OA26C power tables.....................................................................................................80




2 GENERAL

To minimize the risk of destroying the equipment, ensure that the input power to any Transponder board never exceeds the overload limit of its Receiver.

Do not reconfigure the OA unit when it is carrying live traffic! Changing the Amplifier type can cause critical traffic disturbance!

Do always make sure that all optical connectors are clean. Dirty connectors can contaminate and destroy other connectors. Dirt can also "burn" due to high optical power leading to a destroyed connector.

Installation and configuring of the optical amplifier units requires that involved transponders already are installed and configured but shall not be optically connected.

The fibers to and from the optical amplifier units are not supposed to be connected before starting performing the steps below.

The commissioning procedures described in this document can be done by a single person. However, if the distances are long it might be beneficial to be two.

2.1 Introduction An amplifier is designed to be flat for a certain optimum gain. If the gain is changed from this optimum gain value the gain curve will tilt (hereafter called gain tilt). A gain set higher than the optimum flat gain will be tilted to the right i.e. shorter wavelengths will be amplified more than longer wavelengths. A gain set to a lower value will give the opposite result. To avoid tilting of the channel spectrum through a WDM link it is desirable to let the amplifiers operate as near the optimal gain as possible. Furthermore, to avoid saturation of the amplifiers, the amplifiers’ gains have to be equal or lower than the losses through the link. Measures should also be taken to ensure that the amplifiers not will be saturated when upgrading the link with more channels. To avoid adding too much optical noise to a receiver, the link losses in a design has to be within approved limits. There are two ways to get a design approved. One is to compare the losses in the design with allowed link loss tables in section 4.5 or long haul link loss tables in 4.8. The other way is to use Transmode Network Design Tool (TNDT) to simulate the design. The TNDT will simulate the particular case you are working and can approve designs that tables do not. Contact Transmode TAC (http://tac.transmode.se) for information how to get started with TNDT. Following the commissioning procedures in this manual will ensure that the above is fulfilled.

http://tac.transmode.se/�




This manual describes installation/configuration of OA10C/FG, OA17C, OA2-17/17CC, OA20C, OA2-20/20CC, OA20C/LG and OA2-20/20/C/LG amplifiers. OA10C/FG is intended to be used only as a pre-amplifier. The other amplifiers can be used as power, line or pre-amplifiers. Whether the pre-amplifier is an OA10C/FG or one of the other types depends on the network design and the needed transmission properties.




2.2 Equipment in commissioning phase

One of the following instruments is essential in the commissioning phase.

Optical Spectrum Analyser, OSA – Used to equalize channels with each other and to measure optical spectra including Optical Signal to Noise Ratio (OSNR)

Optical Channel Monitor, OCM - Has to be designed for DWDM. TM-3000 OCM board is described in 3.2.2. Generally an OCM has normally not as good performance as an OSA but can measure channel power levels with good accuracy.




2.3 Logistics

Installing and commissioning a link includes by necessity some traveling between different sites. The procedures in this description are written so most sites have to be visited only once. One person can do the necessary steps alone but in some cases when having a system with long distances it can be beneficial to be two. The commissioning starts with the first Terminal Multiplexer node (TM), continues downstream with the Optical Line Amplifier nodes (OLA) to the second TM node. Thereafter you must go back to the first TM node again for final cabling and verification of bit error free transmission. OLAs and OADMs have to be visited twice.

In cases when transponders with no internal loopback feature are used, the second TM node has to be visited again to connect client interfaces. If the customer decides not to verify the transmission link using a bit-error tester this second visit can be avoided. Transmode recommendation is that all installed channels are tested with a bit-error tester before live traffic is connected.

A prerequisite in the described commissioning procedures is that you can reach the Node manager, ENM GUI or CLI, in the commissioned nodes via the build-in OSC or via an external DCN. Another person is needed if the installation is done without OSC or external DCN capability.

OADM nodes have to be commissioned in two steps. The first step connecting amplifiers and OADM filters and as a second step, connecting the transmitters having the right power levels. The second step has to be done having already present channels at the line.

See section 5 for detailed description of the installation procedure.




3 FIRST INSTALLATION

3.1 Description of node types

3.1.1 Principle TM scheme

All different filter combinations that are allowed in TM-3000 are described in ‘Dimensioning guidelines’.

Below you find principle terminal multiplexer node schemes. The different schemes are for systems designed for different number of maximum channel load. Please note that several of the building blocks below actually are within the same unit. TP, MUX/DEMUX (MDU) and OIU are examples of this. Some designs are using a variable optical attenuator, VOA instead of fixed attenuators.

DCU ATT OA

ATTTP ATTTP

MU

X

Pinmax/chPinmax

Poutmax/chPoutmax

DCU OA

TP

DEM

UX

Pinmax/chPinmax

Poutmax/chPoutmax

Figure 1. Principle scheme of an 8 channel Terminal Multiplexer node (Only one TP is shown for simplicity).

Figure 2. Principle scheme of a 16 channel Terminal Multiplexer node.

DCU ATT OA

MU

X

ATT TP ATT TP

ATT TP ATT TP

MU

X

Pinmax/chPinmax

Poutmax/chPoutmax

DCU OA

DEM

UX

TP

TP

DEM

UX

Pinmax/chPinmax

Poutmax/chPoutmax




DCU ATT OA

MU

X

ATTTP ATTTP

ATTTP ATTTP

MU

X

Pinmax/chPinmax

Poutmax/chPoutmax

DCU OA

DEM

UX

TP

TPD

EMU

X

Pinmax/chPinmax

Poutmax/chPoutmax

OIU

OIU

MU

X

ATTTP ATTTP

ATTTP ATTTP

MU

XD

EMU

X

TP

TP

DEM

UX

Figure 3. Principle scheme of a 32 channel Terminal Multiplexer node.

3.1.2 Principle OLA node

Figure 4. Linear network consisting of two Terminal nodes and 2 OLA nodes

TM-3000 supports building linear networks with up to 9 OLA nodes (10 fiber sections between OLA nodes). Systems with 6 OLA nodes or more (7 fiber sections or more) are considered to be “long-haul” systems, described in section 4.6. Each channel has to be dispersion compensated seeing maximal residual dispersion corresponding to 60 km SMF (at the receiver).

Section 1 Sec. 2 Sec. 3

DCU

DCU

OIU

DCU

DCU

Node BOLA node

Node ATerminal node

Node DTerminal node

Node COLA node

AttenuatorSection 1 Sec. 2 Sec. 3

DCU

DCU

OIU

DCU

DCU

Node BOLA node

Node ATerminal node

Node DTerminal node

Node COLA node

Attenuator




3.1.3 Principle OADM node

Figure 5. Linear network consisting of two Terminal nodes and 1 OADM node

TM-3000 supports building linear networks with up to 4 OADM nodes (5 fiber sections between OADM nodes). Each OADM node has a preamplifier and a booster in each direction. Systems with 3 or more OADM nodes are considered to be “long-haul” systems, described in section 4.6. The number of one or four channel add/drop-filters is limited to the internal node loss which should be as close to 22 dB as possible. The internal node loss is dependant on which OADM booster is chosen. The optimal gain on the OADM booster should be equal to internal node loss. The standard OADM booster is OA20LG and in all examples in section 3.1.3 it is assumed that this amplifier is used (optimal gain is 22 dB). If more internal node loss is needed another amplifier with higher optimal gain should be used. Please see Table 3 in section 4.4 for information on optimal gain of different amplifiers.

It is also possible to design other variations of the OADM node. For example if the fiber sections are short, it might not be necessary to have an OADM booster.

The OADM node B above shows 3 channels facing west and 4 channels facing east. Each channel has to be dispersion compensated seeing maximal residual dispersion corresponding to 60 km SMF (at the receiver). When attenuating an OADM node it is important to place the attenuators correctly during first installation. To repair an OADM node with wrongly placed attenuators will cause traffic disruptions in the worst case. The attenuating of the OADM node must follow two rules:

1. The total loss from output of OADM preamplifier to input of OADM booster must be 22 dB in each direction.

2. If attenuators are needed they must be placed in a specific order. In the principle node above the first attenuator must be placed at position A in the East direction and position C in the West direction. If another attenuator is needed it must be placed at position B in the East direction and position D in the West direction.

Section 1

22 dB

Sec. 2

OIU

DCU

DCU

Node BOADM node

Node ATerminal node

Node CTerminal node

DCU

DCU

DCU

DCU

A B

CD

EastWest

Section 1

22 dB

Sec. 2

OIU

DCU

DCU

Node BOADM node

Node ATerminal node

Node CTerminal node

DCU

DCU

DCU

DCU

A B

CD

EastWest




3.1.3.1 OADM node with two MDU-8 back-to-back

Figure 6. Network consisting of two Terminal nodes and 1 OADM node with 2 MDU-8 connected back-to-back.

If two MDU-8 are connected back-to-back they can be used as an 8-channel add/drop filter. In the above example only one direction is showed (for simplicity). If attenuators are needed in the node the first position to place them is A. When patching through the first channel at installation (no other channels can be present) a 6 dB attenuator should be placed at position A. Then compare the internal node max loss (22 dB) with measured OADM loss.

If the 6 dB attenuator results in that measured OADM loss exceeds internal node max loss (22 dB), it is allowed to replace the attenuator (to a lower value attenuator). However it is important to understand that this replacement will influence the possibility to rebuild the 8 channel add/drop to a 16, 24, 32 or 40 channel add/drop. Please see ‘Dimensioning guidelines’ for information on cascading different filter types.

In the case that more attenuation (than the 6 dB attenuator) is needed, another attenuator should be placed at position B.

When at a later stage the Express traffic is connected through extension port, these channels can be balanced by an attenuator at position C.

Section 1

22 dB

Sec. 2

DCU

Node BOADM node

Node ATerminal node

Node CTerminal node

DCUDCU B

A

CSection 1

22 dB

Sec. 2

DCU

Node BOADM node

Node ATerminal node

Node CTerminal node

DCUDCU B

A

C




3.1.3.2 OADM node with two MDU-40 back-to-back

Figure 7. Network consisting of two Terminal nodes and 1 OADM node with 2 MDU-40 connected back-to-back.

If two MDU-40 are connected back-to-back they can be used as a 40-channel add/drop filter. In the above example only one direction is showed (for simplicity). Since the MDU-40 multiplexer has inbuilt VOA:s on each channel the attenuation of a node like this is different. Like the first example in Figure 5, the internal node loss must be 22 dB. If attenuators are needed in the node the only valid position to place them is A. Furthermore when patching through the first channel at installation the VOA on that channel should be set at 4 dB attenuation. If more attenuation is needed it should be taken care of by a fixed attenuator at position A.

3.1.4 Principle ROADM node

TM-3000 supports the use of Reconfigurable OADM:s (ROADM). The ROADM nodes are similar to OADM-nodes but with the possibility to change traffic patterns with live traffic running in the system.

Figure 8. Linear network consisting of two Terminal nodes and 1 ROADM 2-D node.

The ROADM node can be designed as an ordinary OADM with some exceptions.

For a 2-D ROADM node, 2 pieces of ROADM-cards will be necessary (one in each direction). The internal loss of a ROADM pair is 15 dB. When designing systems with ROADM, we recommend calculating with a ROADM pair loss of at least 18 dB since each ROADM has individual VOA functionality (one VOA per channel) on express traffic. If the ROADM loss is assumed 15 dB, all VOA:s has to be set to 0 dB, which of course removes the functionality of decreasing attenuation on any channel.

If fixed attenuators is needed the attenuators position should be as for a principle OADM node described in section 3.1.3. For more information on Transmode ROADM-card and how to design systems with ROADM:s please see ‘Dimensioning Guidelines’.

Section 1

22 dB

Sec. 2

DCU

Node BOADM node

Node ATerminal node

Node CTerminal node

DCU A DCU

MD

U40

MD

U40M

DU

40

Section 1

22 dB

Sec. 2

DCU

Node BOADM node

Node ATerminal node

Node CTerminal node

DCU A DCU

MD

U40

MD

U40M

DU

40

Section 1

22 dB

Sec. 2

DCU

DCU

OIU

DCU

DCU

Node BROADM 2-D node

Node ATerminal node

Node CTerminal node

DCU

DCU

ROADMWest

ROADMEast

Section 1

22 dB

Sec. 2

DCU

DCU

OIU

DCU

DCU

Node BROADM 2-D node

Node ATerminal node

Node CTerminal node

DCU

DCU

ROADMWest

ROADMEast




3.2 Equipment

3.2.1 Introduction of Variable optical attenuator If the design stipulates software managed Variable Optical Attenuators, VOAs, these can be installed instead of fixed attenuators. Please see section 5 for installation guidance.

Currently three different VOA:s are available in the TM-3000 series.

3.2.1.1 8-channel VOA version II (VOA8ch-II)

The 8 channel single slot VOA board version II is managed from the GUI or CLI interface. It is equally important, as for fixed attenuators, not to insert a too high channel power which might saturate the amplifiers leading to a decrease of channel power of other present channels. The procedure is therefore to start having high attenuation i.e. low channel power and then increase the power reaching the wanted power level.

The VOA version II can be managed sitting in all slots for TM-3000 and TM-301.

The VOA version II has one operation mode; “Constant attenuation”. The attenuation set in the GUI is the absolute attenuation that the channel will have. The insertion loss is included in the set attenuation. When power to the VOA is lost, all the 8 VOA-channels will become “dark”, i.e. at least maximum attenuation on all ports.

To ease the management of VOA version II it is important to fill in the description field. There is also a field where the channel number should be set as a variable for each VOA-port.

3.2.1.2 40-channel MDU with built-in VOA

The 40-channel MDU has a built-in VOA that can be managed in the GUI or CLI interface. This VOA has one mode of operation; “Constant attenuation”. Each VOA in the 40-channel MDU is linked to a channel number.

It is equally important, as for fixed attenuators, not to insert a too high channel power which might saturate the amplifiers leading to a decrease of channel power of other present channels. The procedure is therefore to start having high attenuation i.e. low channel power and then increase the power reaching the wanted power level.

3.2.1.3 2-channel VOA

The 2-channel VOA is intended to be placed at line amplifier sites, before the amplifier. This enables easy adjustment of the incoming optical power. This is normally done using fixed attenuators, but the 2-channel VOA enables finer adjustments and also the ability to adjust the attenuation to compensate for changes in fiber attenuation that might occur over time. The attenuation on a link can increase due to fiber splicing.

The 2-channel VOA has one mode of operation; “Constant attenuation”. The range for settable attenuation is 1 to 15 dB, where 1 dB is the insertion loss of the unit. The attenuation set in the GUI is the absolute attenuation that the port will have. The insertion loss is included in the set attenuation. For inline attenuation of links we recommend using a mix of fixed attenuators and 2-channel VOA to optimize performance of the system. The attenuation set in 2-channel VOA should preferably be in the range 3-6 dB at installation.




3.2.2 Introduction of Optical channel monitor (OCM)

The optical channel monitor is a single slot card that can be used in the TM-3000 series. The card presents individual channel power levels in numerical form when connected to the monitor port of an OA or ROADM-card. In the case that an OA is used it is the output channel power levels that will be presented.

Figure 9. Principle scheme of connecting OCM-card at a terminal node.

3.2.2.1 Optical Control-loop, channel control

It is possible to link an OCM-port to a 40-channel MDU or a VOA8chII. With these components you can get individual channel control that has functionality equal to “constant output power”-mode. The optical control loop is designed for power regulation of channels on the transmitting side. Please see ‘Dimensioning guidelines’ for more information on this feature.

3.2.3 Power Extender (OA26C)

The Power extender module (OA26C) is an Erbium doped fiber amplifier (EDFA) with output power capability above 25 dBm. The module is designed for amplifying DWDM signals after an ordinary booster or after a line amplifier. In short this means that if one span in a design is too long, it can be compensated for by using the Power extender before this particular span. The extra signal power added by the unit can keep the OSNR at a high level. For detailed information on how to design networks with Power extender please see ‘Dimensioning Guidelines’.

DCU ATT OA

MU

XATT TP ATT TP

ATT TP ATT TP

MU

X

OCM

DCU OA

DEM

UX

TP

TP

DEM

UX

Monitor port

Monitor port

Port APort B




4 INSTALLATION PREREQUISITES

This section details the design related steps and information needed before the installation, as described in section 5, can begin.

4.1 Acronyms and definitions

The following acronyms and definitions are used in the installation process.

Pinmax/ch Maximum allowed channel power in to an amplifier [dBm]

Poutmax/ch Maximum allowed channel power out from an amplifier [dBm]

Pinmax Total maximum allowed input power to an amplifier [dBm]

Poutmax Total maximum power out from an amplifier [dBm]

max# The maximum number of channels the system is designed for

present# Present number of channels in the amplifier

APS Automatic power shutdown

4.2 Features on amplifier boards

4.2.1 ‘Automatic Power Shutdown’ on Dual amplifier boards On OA2-17C, OA2-20C and OA2-20LG (all dual amplifier boards) there is a parameter that is called “Automatic power shutdown” (=APS). The default value of this parameter is “disabled”. If APS is switched to “enabled” the amplifier module will be dependant on the input signal to the other amplifier on the card. If the other amplifier experiences an input loss the modified amplifier will turn optical output off (turn off pumps).

Figure 10. Picture explaining parameters linked to ‘APS’ feature on OA2 cards.

1

2

OA2Pin

Pout

1

2

OA2Pin

Pout




See Figure 10 above. If input power to module 1 (Pin) is lost, the output power from module 2 (Pout) will be turned off. This will happen regardless of the input power to module 2. If the system has more than one link, all amplifiers have APS “enabled” and there is a line traffic disruption, there is a risk that the system can experience a dead-lock (i.e. all amplifiers are dependant on another amplifiers’ input). To fix the dead-lock special measures have to be taken and the time to fix it can be significant. Under normal operating circumstances it is therefore recommended to always have the Automatic Power Shutdown “disabled” on all amplifiers in a system.

4.2.2 ‘Laser forced on’ on all amplifier boards All Transmode amplifier boards have a parameter called “laser forced on”. See Figure 11 below.

Figure 11. Picture explaining parameters linked to ‘laser forced on’ feature on all OA:s.

If “laser forced on” on an amplifier is “disabled” the amplifier will always shut off optical output (Pout) in case off input loss (Pin). This parameter can be set on all amplifier modules individually. If “laser forced on” on an amplifier is “enabled” the amplifier will always have output power (Pout) regardless of input power (Pin). The default of “laser forced on” parameter is “disabled” and we recommend keeping it at this value.

Pin PoutPin Pout




4.3 Max gain setting on line amplifiers

The maximum settable gain on line amplifiers differ between amplifier types and is also dependant on the link loss of the previous link. See Table 1 below for the maximum gain setting in your specific application. All gain values are excluding ‘backlog in gain’, which is calculated separately during installation (section 5).

OA17C constantGainLi ≤29 dB 28 dB *OA17C constantGainLi >29 dB (Link loss-1 dB) *OA17C constantGainHi all 28 dB

OA20C constantGainLi ≤29,5 dB 28 dB *OA20C constantGainLi >29,5 dB (Link loss-1,5 dB) *OA20C constantGainHi all 28 dB

OA20LG constantGainLi all 29 dBOA20LG constantGainHi all 28 dB

Max line amplifier gainPrevious linklossAmplifier typeLine amplifier

Table 1. Allowed maximum gain on line amplifiers.

All fields denoted with ‘*’ means that the gain should be set according to the rule (plus backlog if applicable) up to a gain of 30 dB. It is not possible to set gain over 30 dB in GUI for any amplifier type.

4.4 Power levels for systems with 6 links or less The power levels described in this chapter is only to be used with systems with links less than 7. Systems with 7 links or more are considered “long-haul” and the power levels for these are described in section 4.6. A system can be designed for different maximum number of channels [max#]. To ensure a stable and predictable behavior of the received power levels no amplifier is allowed to be saturated when applying more channels. Moreover, input power must not saturate the amplifiers’ input power monitor. OA17C R2B or later, OA20C and OA20C/LG have two input power ranges, Low input power mode (denoted as ConstantGainLI) and High input power mode (denoted as ConstantGainHI). OA10C/FG and OA26C have only one range which is called ConstantGain. The table below shows allowed input powers for all amplifiers and modes. The table values for ConstantGainHI are present for historical reference. Transmode recommends users to always use ConstantGainLI-mode on all amplifiers.

OA17C OA20C OA20LG OA10FG OA26CPin Min -35 -35 -31 NA NAPin Max -5 -5 -1 NA NAPin Min -25 -25 -25 NA NAPin Max +8 +8 +5 NA NAPin Min NA NA NA -35 -10Pin Max NA NA NA -3 +20

ConstantGainHI

ConstantGain

ConstantGainLI (default)

Table 2. Allowed total input powers in dBm




Note the maximum number of channels the link is designed for, normally 4, 8, 16, 32, 40 or 80 channels. Henceforth this will be denoted as max#. If during installation you need to know the total input power to the amplifier with full channel load you must know three things: The current number of installed channels (present#), the measured input power (Pin) and the max#. The formula below can be used: Pin (for full channel load in dBm) = Pin (measured in dBm) + 10 * log (max#/present#) Example: Measured input power for 2 channels is -23 dBm for an 80-channel system. The total input power at full channel load (80 channels) will be -23+10*log (80/2)= -23+16= -7 dBm. The optimal gain of an amplifier is needed during the installation procedure. Please see the table below for optimal gain on all Transmode amplifiers:

OA17C OA20C OA20LG OA26C OA10FGPout_amp (dBm) 16.7 19.5 19.5 25.7 10Optimal_gain (dB) 23 26 22 6.2 20 Table 3. Pout_amp and optimal_gain for all amplifiers.

The input and output powers for booster amplifiers relating to different channel loads and amplifier types are described in the tables below. For larger max# (above 16 channels) shortened version of the table can be found below and complete tables are available in the Appendix (section 7). The internal generated ASE from the amplifier can be significant having a low input power into the amplifier (normally when having only one or two channels). “Pout max” below means the total signal output power. The output power showed in the GUI contains also the internal generated ASE. A more accurate way of getting the channels output power is to read the input power of amplifier and add the set gain. This corresponds to total signal output power and should be equal to “Pout max”.

Table 4. Power levels for amplifiers in systems designed for max#= 4 channels

present #

Pinmax/ch Pin max Poutmax/

chPout max

1 -12.3 -12.3 10.7 10.72 -12.3 -9.3 10.7 13.73 -12.3 -7.5 10.7 15.54 -12.3 -6.3 10.7 16.7

OA17C




Table 5. Power levels for amplifiers in systems designed for max#= 8 channels.


present #

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

1 -15.3 -15.3 7.7 7.7 -15.5 -15.5 10.5 10.5 -11.5 -11.5 10.5 10.52 -15.3 -12.3 7.7 10.7 -15.5 -12.5 10.5 13.5 -11.5 -8.5 10.5 13.53 -15.3 -10.6 7.7 12.4 -15.5 -10.8 10.5 15.2 -11.5 -6.8 10.5 15.24 -15.3 -9.3 7.7 13.7 -15.5 -9.5 10.5 16.5 -11.5 -5.5 10.5 16.55 -15.3 -8.3 7.7 14.7 -15.5 -8.5 10.5 17.5 -11.5 -4.5 10.5 17.56 -15.3 -7.5 7.7 15.5 -15.5 -7.7 10.5 18.3 -11.5 -3.7 10.5 18.37 -15.3 -6.9 7.7 16.1 -15.5 -7.1 10.5 18.9 -11.5 -3.1 10.5 18.98 -15.3 -6.3 7.7 16.7 -15.5 -6.5 10.5 19.5 -11.5 -2.5 10.5 19.5

OA20LGOA17C OA20C

present #

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

1 -18.3 -18.3 4.7 4.7 -18.5 -18.5 7.5 7.5 -14.5 -14.5 7.5 7.52 -18.3 -15.3 4.7 7.7 -18.5 -15.5 7.5 10.5 -14.5 -11.5 7.5 10.53 -18.3 -13.6 4.7 9.4 -18.5 -13.8 7.5 12.2 -14.5 -9.8 7.5 12.24 -18.3 -12.3 4.7 10.7 -18.5 -12.5 7.5 13.5 -14.5 -8.5 7.5 13.55 -18.3 -11.4 4.7 11.6 -18.5 -11.6 7.5 14.4 -14.5 -7.6 7.5 14.46 -18.3 -10.6 4.7 12.4 -18.5 -10.8 7.5 15.2 -14.5 -6.8 7.5 15.27 -18.3 -9.9 4.7 13.1 -18.5 -10.1 7.5 15.9 -14.5 -6.1 7.5 15.98 -18.3 -9.3 4.7 13.7 -18.5 -9.5 7.5 16.5 -14.5 -5.5 7.5 16.59 -18.3 -8.8 4.7 14.2 -18.5 -9.0 7.5 17.0 -14.5 -5.0 7.5 17.010 -18.3 -8.3 4.7 14.7 -18.5 -8.5 7.5 17.5 -14.5 -4.5 7.5 17.511 -18.3 -7.9 4.7 15.1 -18.5 -8.1 7.5 17.9 -14.5 -4.1 7.5 17.912 -18.3 -7.5 4.7 15.5 -18.5 -7.7 7.5 18.3 -14.5 -3.7 7.5 18.313 -18.3 -7.2 4.7 15.8 -18.5 -7.4 7.5 18.6 -14.5 -3.4 7.5 18.614 -18.3 -6.9 4.7 16.1 -18.5 -7.1 7.5 18.9 -14.5 -3.1 7.5 18.915 -18.3 -6.6 4.7 16.4 -18.5 -6.8 7.5 19.2 -14.5 -2.8 7.5 19.216 -18.3 -6.3 4.7 16.7 -18.5 -6.5 7.5 19.5 -14.5 -2.5 7.5 19.5

OA20LGOA17C OA20C




present #

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

1 -21.4 -21.4 1.6 1.6 -21.6 -21.6 4.4 4.4 -17.6 -17.6 4.4 4.42 -21.4 -18.3 1.6 4.7 -21.6 -18.5 4.4 7.5 -17.6 -14.5 4.4 7.53 -21.4 -16.6 1.6 6.4 -21.6 -16.8 4.4 9.2 -17.6 -12.8 4.4 9.24 -21.4 -15.3 1.6 7.7 -21.6 -15.5 4.4 10.5 -17.6 -11.5 4.4 10.55 -21.4 -14.4 1.6 8.6 -21.6 -14.6 4.4 11.4 -17.6 -10.6 4.4 11.46 -21.4 -13.6 1.6 9.4 -21.6 -13.8 4.4 12.2 -17.6 -9.8 4.4 12.27 -21.4 -12.9 1.6 10.1 -21.6 -13.1 4.4 12.9 -17.6 -9.1 4.4 12.98 -21.4 -12.3 1.6 10.7 -21.6 -12.5 4.4 13.5 -17.6 -8.5 4.4 13.516 -21.4 -9.3 1.6 13.7 -21.6 -9.5 4.4 16.5 -17.6 -5.5 4.4 16.524 -21.4 -7.5 1.6 15.5 -21.6 -7.7 4.4 18.3 -17.6 -3.7 4.4 18.332 -21.4 -6.3 1.6 16.7 -21.6 -6.5 4.4 19.5 -17.6 -2.5 4.4 19.5

OA20LGOA17C OA20C

present # Pinmax/ch Pin max Poutmax/

ch Pout max

1 4.4 4.4 10.6 10.62 4.4 7.5 10.6 13.73 4.4 9.2 10.6 15.44 4.4 10.5 10.6 16.75 4.4 11.4 10.6 17.66 4.4 12.2 10.6 18.47 4.4 12.9 10.6 19.18 4.4 13.5 10.6 19.716 4.4 16.5 10.6 22.724 4.4 18.3 10.6 24.532 4.4 19.5 10.6 25.7

OA26C





present #

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

1 -22.3 -22.3 0.7 0.7 -22.5 -22.5 3.5 3.5 -18.5 -18.5 3.5 3.52 -22.3 -19.3 0.7 3.7 -22.5 -19.5 3.5 6.5 -18.5 -15.5 3.5 6.53 -22.3 -17.5 0.7 5.5 -22.5 -17.7 3.5 8.3 -18.5 -13.7 3.5 8.34 -22.3 -16.3 0.7 6.7 -22.5 -16.5 3.5 9.5 -18.5 -12.5 3.5 9.55 -22.3 -15.3 0.7 7.7 -22.5 -15.5 3.5 10.5 -18.5 -11.5 3.5 10.56 -22.3 -14.5 0.7 8.5 -22.5 -14.7 3.5 11.3 -18.5 -10.7 3.5 11.37 -22.3 -13.9 0.7 9.1 -22.5 -14.1 3.5 11.9 -18.5 -10.1 3.5 11.98 -22.3 -13.3 0.7 9.7 -22.5 -13.5 3.5 12.5 -18.5 -9.5 3.5 12.516 -22.3 -10.3 0.7 12.7 -22.5 -10.5 3.5 15.5 -18.5 -6.5 3.5 15.524 -22.3 -8.5 0.7 14.5 -22.5 -8.7 3.5 17.3 -18.5 -4.7 3.5 17.332 -22.3 -7.3 0.7 15.7 -22.5 -7.5 3.5 18.5 -18.5 -3.5 3.5 18.540 -22.3 -6.3 0.7 16.7 -22.5 -6.5 3.5 19.5 -18.5 -2.5 3.5 19.5

OA17C OA20C OA20LG


ch Pout max

1 3.5 3.5 9.7 9.72 3.5 6.5 9.7 12.73 3.5 8.3 9.7 14.54 3.5 9.5 9.7 15.75 3.5 10.5 9.7 16.76 3.5 11.3 9.7 17.57 3.5 11.9 9.7 18.18 3.5 12.5 9.7 18.716 3.5 15.5 9.7 21.724 3.5 17.3 9.7 23.532 3.5 18.5 9.7 24.740 3.5 19.5 9.7 25.7

OA26C





present #

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

1 -25.3 -25.3 -2.3 -2.3 -25.5 -25.5 0.5 0.5 -21.5 -21.5 0.5 0.52 -25.3 -22.3 -2.3 0.7 -25.5 -22.5 0.5 3.5 -21.5 -18.5 0.5 3.53 -25.3 -20.6 -2.3 2.4 -25.5 -20.8 0.5 5.2 -21.5 -16.8 0.5 5.24 -25.3 -19.3 -2.3 3.7 -25.5 -19.5 0.5 6.5 -21.5 -15.5 0.5 6.55 -25.3 -18.3 -2.3 4.7 -25.5 -18.5 0.5 7.5 -21.5 -14.5 0.5 7.56 -25.3 -17.5 -2.3 5.5 -25.5 -17.7 0.5 8.3 -21.5 -13.7 0.5 8.37 -25.3 -16.9 -2.3 6.1 -25.5 -17.1 0.5 8.9 -21.5 -13.1 0.5 8.98 -25.3 -16.3 -2.3 6.7 -25.5 -16.5 0.5 9.5 -21.5 -12.5 0.5 9.516 -25.3 -13.3 -2.3 9.7 -25.5 -13.5 0.5 12.5 -21.5 -9.5 0.5 12.524 -25.3 -11.5 -2.3 11.5 -25.5 -11.7 0.5 14.3 -21.5 -7.7 0.5 14.332 -25.3 -10.3 -2.3 12.7 -25.5 -10.5 0.5 15.5 -21.5 -6.5 0.5 15.540 -25.3 -9.3 -2.3 13.7 -25.5 -9.5 0.5 16.5 -21.5 -5.5 0.5 16.548 -25.3 -8.5 -2.3 14.5 -25.5 -8.7 0.5 17.3 -21.5 -4.7 0.5 17.356 -25.3 -7.8 -2.3 15.2 -25.5 -8.0 0.5 18.0 -21.5 -4.0 0.5 18.064 -25.3 -7.3 -2.3 15.7 -25.5 -7.5 0.5 18.5 -21.5 -3.5 0.5 18.572 -25.3 -6.8 -2.3 16.2 -25.5 -7.0 0.5 19.0 -21.5 -3.0 0.5 19.080 -25.3 -6.3 -2.3 16.7 -25.5 -6.5 0.5 19.5 -21.5 -2.5 0.5 19.5

OA17C OA20C OA20LG


ch Pout max

1 0.5 0.5 6.7 6.72 0.5 3.5 6.7 9.73 0.5 5.2 6.7 11.44 0.5 6.5 6.7 12.75 0.5 7.5 6.7 13.76 0.5 8.3 6.7 14.57 0.5 8.9 6.7 15.18 0.5 9.5 6.7 15.716 0.5 12.5 6.7 18.724 0.5 14.3 6.7 20.532 0.5 15.5 6.7 21.740 0.5 16.5 6.7 22.748 0.5 17.3 6.7 23.556 0.5 18.0 6.7 24.264 0.5 18.5 6.7 24.772 0.5 19.0 6.7 25.280 0.5 19.5 6.7 25.7

OA26C

Table 9. Power levels for amplifiers in systems designed for max#= 80 channels.

Please note, when you upgrade the system with more channels or remove channels the input and output power levels from the amplifiers will automatically change since the amplifiers are in a constant gain mode.




4.4.1 OA10C/FG power levels The OA10C/FG amplifier is intended as a pre-amplifier with lower output power. Below are tables with absolute maximum input powers for 8 and 16 channels. If the input power is higher than the values below the link need to be attenuated.


ch Pout max

1 -12.0 -12.0 1.0 1.02 -12.0 -9.0 1.0 4.03 -12.0 -7.3 1.0 5.74 -12.0 -6.0 1.0 7.05 -12.0 -5.0 1.0 8.06 -12.0 -4.2 1.0 8.87 -12.0 -3.6 1.0 9.48 -12.0 -3.0 1.0 10.0

OA10FG

Table 10. Maximum input powers to OA10C/FG, 8 channels


ch Pout max

1 -15.0 -15.0 -2.0 -2.02 -15.0 -12.0 -2.0 1.03 -15.0 -10.3 -2.0 2.74 -15.0 -9.0 -2.0 4.05 -15.0 -8.1 -2.0 4.96 -15.0 -7.3 -2.0 5.77 -15.0 -6.6 -2.0 6.48 -15.0 -6.0 -2.0 7.09 -15.0 -5.5 -2.0 7.5

10 -15.0 -5.0 -2.0 8.011 -15.0 -4.6 -2.0 8.412 -15.0 -4.2 -2.0 8.813 -15.0 -3.9 -2.0 9.114 -15.0 -3.6 -2.0 9.415 -15.0 -3.3 -2.0 9.716 -15.0 -3.0 -2.0 10.0

OA10FG

Table 11. Maximum input powers to OA10C/FG, 16 channels

Observe that the tables shows the values when gain is set to minimum 13 dB (optimal gain is 20 dB). Other gain settings results in other maximum input and output powers, which can be calculated with formulas below: Pinmax= Pout_amp – Set_gain - 10 * log (max#/present#) Poutmax= Pout_amp - 10 * log (max#/present#)

Pout_amp for OA10FG is 10 dBm.




4.5 Link loss tables for systems with 6 links or less

The link loss tables in this section can be used to decide if a particular design is approved or not. If the design fails there is always a possibility to use the Transmode Network Design Tool (TNDT) to simulate a design. The TNDT will simulate the particular case you are working and can approve designs that tables do not. Contact Transmode TAC (http://tac.transmode.se) for information how to get started with TNDT.

4.5.1 Transceiver groups

Four groups of transceivers are defined. The four groups have different system performances/configurations used in combination with optical amplifiers. Transceiver group D has the best optical performance, group C second best performance, group A third best performance. Group B has the worst optical performance of the four groups.

Please observe that if transceivers from groups A, B, C and D are used, the transceiver having the worst transmission properties will limit the system

In amplified systems it is vital that the input power to the receiver is correct and that the residual dispersion is in the allowed range. In the figure below the input powers and residual dispersion limits of all transponder/transceivers are given. Please note that these values are only valid for systems with 6 links or less. For long-haul systems you can find the corresponding values in section 4.8.1.

Table 12. Input power values and allowed dispersion range for receivers in amplified systems with 6 links or less.

Transceiver Group A: Transponder configurations with mix of:

• TPMR2500 Lite transponder versions

• TP 10G (TP10G/xxxxx), TP 10GbE-LAN (TP10G-LAN/xxxxx ) and TP 10G-CLX (TP10GCLX/xxxxx ) with SW-release prior to 10.0 (all with discrete line interfaces)

• All SFP-based boards (TPQMR, TPDDGBE, MXP8, GXP10/2500-SFP, 6-port EDU, 12-port EDU) using the DWDM SFP:s TRX100028/xx or TRX100073/xx.

At installation During operation Min Max TRX100032 (APD receiver) -14+/-4 -14+/-5 -510 (-30 km SMF) 1020 (+60 km SMF)TRX100031 (PIN receiver) -9+/-4 -9+/-5 -510 (-30 km SMF) 680 (+40 km SMF)Other Transponders listed below (with APD) -15+/-4 -15+/-5 -510 (-30 km SMF)

Residual dispersion (ps/nm) Receiver input power (dBm)

1020 (+60 km SMF)





When available, G.709- FEC (forward error correction) feature should always be used (even at 2.5Gb/s). All transceivers/transponders in Transceiver group A needs a minimum OSNR level of 21 dB to function properly. The OSNR must be measured at a resolution of 0.1 nm.

Transceiver Group B: Transponders/MuxPonders using XFP’s with PIN- receiver (i.e. TRX100031/xxx) and XFP’s with APD-receiver (i.e. TRX100032/xxx) without FEC (G.709), i.e.;

• Double 10G Lite (TPD10G-L-BU).

• 9xGbE/10G MuxPonder (GbE9-MXP10G)

• 10xGbE/10GbE Ethernet Muxponder (GBE10-EMXP10)

• 22xGbE/10GbE Ethernet Muxponder (GBE22-EMXP10)

Comment: Transceiver Group B will not have as good transmission performance as other transceiver groups since transceiver group B is using XFP without FEC.

Please note that it is not recommended to mix XFP’s having APD receivers with XFP´s having PIN receivers. If this is done anyway each channel preceding an APD receiver has to be individually attenuated down to its operating range.

The two sub groups are denoted Group B/PIN and Group B/APD. All transceivers/transponders in Transceiver group B needs a minimum OSNR level of 26.5 dB to function properly. The OSNR must be measured at a resolution of 0.1 nm.

Transceiver Group C:

Transponders/MuxPonders using XFP’s with PIN- receiver (i.e. TRX100031/xxx) and XFP’s with APD-receiver (i.e. TRX100032/xxx) with FEC (G.709), i.e.;

• Tunable 10 G transponder: TP10GCLX/TC

• Tunable 10 G OTN transponder : TP10GOTN/TC

• Double 10 G transponder with XFP:s and FEC: TPD10GBE-BU

o Line XFP’s with PIN- receiver (i.e. TRX100031/xxx) or XFP’s with APD-receiver (i.e. TRX100032/xxx or TRX100090/TC)

• 4x2G5-MXP10G Muxponder with line XFP and FEC

• MSMXP10G with line XFP and FEC: MS-MXP/10G


• 9xGbE/10G FEC Muxponder: GBE9/MXP10GFEC




• TP10GCLX/xxxxx with SW-release 10.0 and forward

• TPMR2500/xxxxx

• TPMR25-CIR/xxxxx

Comment: Transceiver Group C has better receiver and noise performance compared to Group A and B.

G.709- FEC (forward error correction) feature should always be used (even at 2.5Gb/s).


The two sub groups are denoted Group C/PIN and Group C/APD. All transceivers/transponders in Transceiver group C needs a minimum OSNR level of 18 dB to function properly. The OSNR must be measured at a resolution of 0.1 nm.

Transceiver Group D:

Transponder configurations with mix of:

• Extended reach Tunable 10 G transponder: TP10GTC-ER

• MSMXP10G with Tunable 10 G Extended reach interface: MS-MXP10G/TC-ER

• TPMR25-V2/xxxxx (2.5 Gbps)

Comment: Transceiver Group D has better receiver and noise performance compared to Group A, B and C. For “TPMR25-V2” G.709- FEC (forward error correction) feature should always be used. TP10GTC-ER transponder can be used with both G709 FEC (GFEC) and Extended FEC (EFEC). EFEC must be used when the transponder is used in Transceiver group D. If GFEC is used the transponder will fall under transceiver group C.

All transceivers/transponders in Transceiver group D needs a minimum OSNR level of 16 dB to function properly. The OSNR must be measured at a resolution of 0.1 nm.




4.5.2 Systems designed for Transceiver group A

Please see Dimensioning Guidelines for further information detailing this transceiver group.

The tables below depict the allowed transmission and allowed DCU/DCM losses at transmitting node and receiving node for different amplifier configurations. Please see ‘Dimension guidelines’ for specified losses of DCUs and DCMs.

Please note that possible OSC filter losses are not included in the loss tables. Furthermore the OSC loss budget has to be calculated separately and can limit the maximum span loss.

Note also that 80 channels for transmission group A cannot be built only with line SFP:s since they to this date are not available in odd 50 GHz channels (i.e. 19x.x5 THz). See ‘Dimensioning Guidelines’ for more information on how to build different systems.

The Lineamps with marking “OA20C/OA20LG” means that it is the designers’ choice of amplifier between OA20C and OA20C/LG. As a general rule: Links above 24 dB should have OA20C and below 24 dB should have OA20C/LG. But it is also important to look at all links in an amplifier chain when choosing amplifier. The choice of amplifier will influence the gain tilt at the end of all links.

The configurations marked with "VOA" shall be equipped with VOAs - Variable optical attenuators. To ease commissioning and enable future fine tuning of the system we recommend using VOAs in most applications.

Table 13: Transmission table designed for 4 channels maximum traffic load , Tr Group A

Max losses [dB]

Max DCU/DCM losses Tx side

Max DCU/DCM losses Rx side

Power amp

Line amp Pre amp

1 x 26.5 NA 6 NA NA OA17C 1 x 41 6 7.2 OA17C NA OA17C 2 x 34 6 11.6 OA17C OA17C OA17C

3 x 31.5 6 11.6 OA17C OA17C OA17C 4 x 30.5 (VOA) 4 11.6 OA17C OA17C OA17C 5 x 29 (VOA) 4 11.6 OA17C OA17C OA17C 6 x 26 (VOA) 4 11.6 OA17C OA17C OA17C

1 x 26 NA 7.2 NA NA OA10C/FG 1 x 41 6 7.2 OA17C NA OA10C/FG 2 x 32 6 7.2 OA17C OA17C OA10C/FG

3 x 26.5 6 7.2 OA17C OA17C OA10C/FG 4 x 25 (VOA) 4 7.2 OA17C OA17C OA10C/FG




Table 14: Transmission table designed for 8 channels maximum traffic load, Tr Group A


Max losses [dB]

Max DCU/DCM losses TX side

[dB]


[dB] Power amp

Line amp Pre amp

1 x 26.5 NA 7.2 NA NA OA17C 1 x 38 9 6 OA17C NA OA17C

1 x 40.5 9 6 OA20C NA OA20C 2 x 32 9 11.6 OA17C OA17C OA17C 2 x 34 9 11.6 OA20C OA20C/OA20LG OA20C 3 x 30 9 7.2 OA17C OA17C OA17C 3 x 32 9 11.6 OA20C OA20C/OA20LG OA20C

4 x 29 (VOA) 5 11.6 OA17C OA17C OA17C 4 x 31 (VOA) 5 11.6 OA20C OA20C/OA20LG OA20C 5 x 28 (VOA) 5 7.2 OA17C OA17C OA17C 5 x 30 (VOA) 5 11.6 OA20C OA20C/OA20LG OA20C 6 x 28 (VOA) 5 11.6 OA20C OA20C/OA20LG OA20C

1 x 26 NA 7.2 NA NA OA10C/FG1 x 37.5 9 7.2 OA17C NA OA10C/FG2 x 29 9 7.2 OA17C OA17C OA10C/FG

3 x 26.5 9 7.2 OA17C OA17C OA10C/FG4 x 25 (VOA) 7.2 7.2 OA17C OA17C OA10C/FG

Max losses [dB]


[dB]


[dB] Power amp Line amp Pre amp

1 x 26.5 NA 7.2 NA NA OA17C 1 x 35 12 NA OA17C NA OA17C 1 x 38 12 NA OA20C NA OA20C 2 x 29 12 7.2 OA17C OA17C OA17C

2 x 32.5 12 7.2 OA20C OA20C/OA20LG OA20C 3 x 26 12 7.2 OA17C OA17C OA17C

3 x 30.5 12 12 OA20C OA20C/OA20LG OA20C 4 x 26 (VOA) 8 7.2 OA17C OA17C OA17C 4 x 29 (VOA) 8 12 OA20C OA20C/OA20LG OA20C 5 x 28 (VOA) 8 12 OA20C OA20C/OA20LG OA20C

6 x 27 (VOA) 7.2 11.6 OA20C OA20C/OA20LG OA20C 1 x 24 NA 7.2 NA NA OA10C/FG1 x 34 12 NA OA17C NA OA10C/FG2 x 27 12 NA OA17C OA17C OA10C/FG3 x 24 12 7.2 OA17C OA17C OA10C/FG

4 x 23.5 (VOA) 10 7.2 OA17C OA17C OA10C/FG





Table 17 Transmission table for 40 channels (using 5 x MDU8EE / MDU8EO) Tr Group A

Table 18 Transmission table for 40 channels (using MDU-40 with built-in VOA), Tr Group A

Max losses [dB]

Max DCU/DCM losses TX

side [dB]



1 x 24 NA 6 NA NA OA17C 1 x 32 12 NA OA17C NA OA17C

1 x 34.5 12 NA OA20C NA OA20C 2 x 27.5 12 7.2 OA17C OA17C OA17C 2 x 30.5 12 7.2 OA20C OA20C/OA20LG OA20C 3 x 25.5 12 7.2 OA17C OA17C OA17C 3 x 28.5 12 10.4 OA20C OA20C/OA20LG OA20C

4 x 24 (VOA) 10 6 OA17C OA17C OA17C 4 x 27 (VOA) 10 10.4 OA20C OA20C/OA20LG OA20C 5 x 26 (VOA) 10 10.4 OA20C OA20C/OA20LG OA20C

6 x 23.5 (VOA) 10 10.4 OA20C OA20C/OA20LG OA20C 1 x 31 12 NA OA17C NA OA10C/FG

2 x 25.5 12 NA OA17C OA17C OA10C/FG3 x 23 12 NA OA17C OA17C OA10C/FG

Max losses [dB]


[dB]



1 x 21.5 NA 6 NA NA OA20C 1 x 30 13 NA OA17C NA OA17C 1 x 33 13 NA OA20C NA OA20C 2 x 26.5 13 7.6 OA17C OA17C OA17C 2 x 29 13 7.6 OA20C OA20C/OA20LG OA20C 3 x 24.5 13 7.6 OA17C OA17C OA17C 3 x 27 13 7.6 OA20C OA20C/OA20LG OA20C

Max losses [dB]


[dB]



1 x 21.5 NA 7.6 NA NA OA17C 1 x 30.5 13 NA OA17C NA OA17C 1 x 33.5 13 NA OA20C NA OA20C 2 x 27 13 7.6 OA17C OA17C OA17C

2 x 29.5 13 7.6 OA20C OA20C/OA20LG OA20C 3 x 24.5 13 7.6 OA17C OA17C OA17C 3 x 27.5 13 7.6 OA20C OA20C/OA20LG OA20C 4 x 23.5 13 7.6 OA17C OA17C OA17C 4 x 26.5 13 11.6 OA20C OA20C/OA20LG OA20C 5 x 24 13 11.6 OA20C OA20C/OA20LG OA20C 6 x 23 13 11.6 OA20C OA20LG OA20C




Table 19: Transmission table for 80 channels (using 2 x MDU-40 and built-in VOA), Tr Group A

Table 20: Transmission table for systems with OADM. 16 channel design, Tr Group A

Max losses [dB]


side [dB]


[dB]

Max loss at OADM

[dB] Power amp

All OADM amps

Pre amp

2 x 29 6 7.2 22 OA17C OA17C OA17C 3 x 26 (VOA) 6 7.2 22 OA17C OA17C OA17C

2 x 32 6 7.2 22 OA20C OA20C/OA20LG OA20C 3 x 29 (VOA) 6 7.2 22 OA20C OA20C/OA20LG OA20C

Table 21: Transmission table for systems with OADM. 32 channel design, Tr Group A

Max losses [dB]


side [dB]


[dB]

Max loss at OADM

[dB] Power amp

All OADM amps

Pre amp

2 x 26 12 7.2 22 OA17C OA17C OA17C 3 x 23 (VOA) 12 7.2 22 OA17C OA17C OA17C

2 x 29 12 7.2 22 OA20C OA20C/OA20LG OA20C 3 x 25 (VOA) 12 7.2 22 OA20C OA20C/OA20LG OA20C Table 22: Transmission table for systems with OADM. 40 channels (using MDU-40 with built-in VOA), Tr Group A

Max losses [dB]


[dB]


[dB]

Max loss at OADM

[dB] Power amp

All OADM amps

Pre amp

2 x 26 13 7.6 22 OA17C OA17C OA17C 2 x 29.5 13 7.6 22 OA20C OA20C/OA20LG OA20C 3 x 24 13 7.6 22 OA20C OA20C/OA20LG OA20C

Max losses [dB]


[dB]



1 x 20 NA 7.6 NA NA OA20C/LG 1 x 30 14.5 NA OA20C NA OA20C 2 x 26 14.5 7.6 OA20C OA20C/OA20LG OA20C 3 x 24 14.5 7.6 OA20C OA20LG OA20C

4 x 22.5 14.5 11.6 OA20C OA20LG OA20C




Table 23 Transmission table for systems with OADM. 80 channels (using 2 x MDU-40 with built-in VOA), Tr Group A

Max losses [dB]


[dB]


[dB]

Max loss at OADM

[dB] Power amp

All OADM amps

Pre amp

2 x 25.5 10 7.6 22 OA20LG OA20LG OA20LG 3 x 22.5 10 7.6 22 OA20LG OA20LG OA20LG




4.5.3 Systems designed for Transceiver group B

The transponders used for these loss tables belong to transceiver Group B. Please carefully read section 4.5.1 and especially note the difference in receiver dynamic range between PIN and APD receivers.

Note that 80 channels for transmission group B cannot be built only with line XFP:s since they to this date are not available in odd 50 GHz channels (i.e. 19x.x5 THz). See ‘Dimensioning Guidelines’ for more information on how to build different systems.

The Lineamps with marking “OA20C/OA20LG” means that it is the designers’ choice of amplifier between OA20C and OA20C/LG. As a general rule: Links above 24 dB should have OA20C and below 24 dB should have OA20C/LG. But it is also important to look at all links in an amplifier chain when choosing amplifier. The choice of amplifier will influence the gain tilt at the end of all links. Table 24: Loss budgets for p-to-p, designed for 8 channels maximum traffic load, Tr Group B

Max losses [dB]


[dB]



1 x 20.5 NA 7.2 NA NA OA17/20C 1 x 31.5 7.2 7.2 OA17C NA OA17/20C 1 x 34.5 7.2 7.2 OA20C NA OA17/20C 2 x 28 8.8 11.6* OA17C OA17C OA17/20C

2 x 30.5 8.8 11.6* OA20C OA20C/OA20LG OA17/20C

*) plus another 4.4 dB if XFP with APD receiver is used (same receiver range as transceiver group A)

Table 25: Loss budgets for p-to-p, designed for 16 channels maximum traffic load, Tr Group B

Max losses [dB]


[dB]



1 x 20.5 NA 7.2 NA NA OA17/20C 1 x 28 12 7.2 OA17C NA OA17/20C 1 x 31 12 7.2 OA20C NA OA17/20C 2 x 25 12 7.2* OA17C NA OA17/20C

2 x 26.5 12 12 OA20C OA20C/OA20LG OA17/20C

*) plus another 4.4 dB if XFP with APD receiver is used (same receiver range as transceiver group A)




Table 26: Loss budgets for p-to-p, designed for 32 channels maximum traffic load, Tr Group B

Max losses [dB]


[dB]



1 x 18.5 NA 6* NA NA OA17/20C 1 x 23.5 12 NA* OA17C NA OA17/20C 1 x 27 12 NA* OA20C NA OA17/20C 2 x 22 12 4.4* OA20C OA20C/OA20LG OA20C**

*) 7.2 dB if XFP with APD receiver is used (same receiver range as transceiver group A) **) Not OA17C

Table 27: Loss budgets for p-to-p, designed for 40 channels (using 5 x MDU8EE / MDU8EO), Tr Group B

Max losses [dB]


[dB]



1 x 16.5 NA 4 * NA NA OA20C 1 x 22 12 NA* OA17C NA OA17/20C 1 x 24.5 10 NA* OA20C NA OA20C 2 x 21 12 4 * OA20C OA20LG OA20C/OA20LG

*) 7.6 dB if XFP with APD receiver is used (same receiver as transmission group A)

Table 28: Loss budgets for p-to-p, designed for 40 channels (using MDU-40 with built-in VOA), Tr Group B

Max losses [dB]


[dB]



1 x 17 NA 6 * NA NA OA20C 1 x 25.5 13 7.6 OA20C NA OA20C 2 x 24 10 6 * OA20LG OA20LG OA20LG


Table 29: Loss budgets for p-to-p, designed for 80 channels (using 2 x MDU-40 with built-in VOA), Tr Group B

Max losses [dB]


[dB]



1 x 15 NA NA* NA NA OA20LG 1 x 23 10 NA* OA20LG NA OA20LG





4.5.4 Systems designed for Transceiver group C


Please carefully read section 4.5.1 and especially note the difference in receiver dynamic range between PIN and APD receivers.

The tables below depict the allowed transmission links and allowed DCU/DCM losses at transmitting node and receiving node for different amplifier configurations. If PIN receivers are used the general rule is that there should be no DCU:s/DCM:s in the receiving node after the pre-amplifier. Please see ‘Dimension guidelines’ for specified losses of DCUs and DCMs and rules regarding the design when having PIN and APD receivers.


The Lineamps with marking “OA20C/OA20LG” means that it is the designers’ choice of amplifier between OA20C and OA20C/LG. As a general rule: Links above 24 dB should have OA20C and below 24 dB should have OA20C/LG. But it is also important to look at all links in an amplifier chain when choosing amplifier. The choice of amplifier will influence the gain tilt at the end of all links.

The configurations marked with "VOA" shall be equipped with VOAs - Variable optical attenuators. To ease commissioning and enable future fine tuning of the system we recommend using VOAs in most applications. Table 30: Transmission table designed for 4 channels maximum traffic load, Tr Group C

Max losses [dB]


side [dB]



1 x 28 NA 7.6 NA NA OA17C 1 x 44 6 7.6 OA17C NA OA17C 2 x 35.5 6 7.6 OA17C OA17C OA17C 3 x 33 6 7.6 OA17C OA17C OA17C 4 x 31.5 (VOA) 4 7.6 OA17C OA17C OA17C 5 x 29.5 (VOA) 4 7.6 OA17C OA17C OA17C 6 x 28 (VOA) 4 7.6 OA17C OA17C OA17C




Table 31: Transmission table designed for 8 channels maximum traffic load, Tr Group C

Table 32: Transmission table designed for 16 channels maximum traffic load, Tr Group C

Max losses [dB]


[dB]



1 x 28 NA 7.6 NA NA OA17C 1 x 40.5 9 6 OA17C NA OA17C 1 x 43.5 9 7.6 OA20C NA OA20C 2 x 34 9 10 OA17C OA17C OA17C 2 x 36 9 10 OA20C OA20C/OA20LG OA20C 3 x 31.5 9 11.6 OA17C OA17C OA17C 3 x 33 9 11.6 OA20C OA20C/OA20LG OA20C 4 x 31 (VOA) 5 7.6 OA17C OA17C OA17C 4 x 32 (VOA) 5 11.6 OA20C OA20C/OA20LG OA20C 5 x 28 (VOA) 5 11.6 OA17C OA17C OA17C 5 x 31 (VOA) 5 11.6 OA20C OA20C/OA20LG OA20C 6 x 26.5 (VOA) 5 7.6 OA17C OA17C OA17C 6 x 30 (VOA) 5 11.6 OA20C OA20C/OA20LG OA20C 6 x 30.5 (VOA) 5 7.6 OA20C OA20C/OA20LG OA20C

Max losses [dB]


[dB]



1 x 28 NA 7.6 NA NA OA17C 1 x 37.5 12 7.6 OA17C NA OA17C 1 x 40.5 12 7.6 OA20C NA OA20C 2 x 32 12 7.6 OA17C OA17C OA17C 2 x 34 12 7.6 OA20C OA20C/OA20LG OA20C 3 x 29 12 7.6 OA17C OA17C OA17C 3 x 31.5 12 7.6 OA20C OA20C/OA20LG OA20C 4 x 27 (VOA) 8 7.6 OA17C OA17C OA17C 4 x 30.5 (VOA) 8 7.6 OA20C OA20C/OA20LG OA20C 4 x 30 (VOA) 8 11.6 OA20C OA20C/OA20LG OA20C 5 x 29 (VOA) 8 11.6 OA20C OA20C/OA20LG OA20C 5 x 29.5 (VOA) 8 7.6 OA20C OA20C/OA20LG OA20C 6 x 28.5 (VOA) 8 7.6 OA20C OA20C/OA20LG OA20C 6 x 28 (VOA) 8 11.6 OA20C OA20C/OA20LG OA20C




Table 33: Transmission table designed for 32 channels maximum traffic load , Tr Group C

*) Values within brackets if XFP is used as line interface.

Table 34: Transmission table designed for 40 channels (using 5 x MDU8EE / MDU8EO), Tr Group C

Table 35: Transmission table designed for 40 channels (using MDU-40 with built-in VOA), Tr Group C


Max losses [dB]


[dB]



1 x 26 (24) * NA 7.6 NA NA OA17C 1 x 34.5 12 NA OA17C NA OA17C 1 x 37.5 12 NA OA20C NA OA20C 2 x 30 12 7.6 OA17C OA17C OA17C 2 x 32 12 7.6 OA20C OA20C/OA20LG OA20C 3 x 27 12 7.6 OA17C OA17C OA17C 3 x 30.5 12 7.6 OA20C OA20C/OA20LG OA20C 4 x 26.5 (VOA) 10 7.6 OA17C OA17C OA17C 4 x 29 (VOA) 10 11.6 OA20C OA20C/OA20LG OA20C 5 x 28 (VOA) 10 11.6 OA20C OA20C/OA20LG OA20C 6 x 27.5 (VOA) 10 11.6 OA20C OA20C/OA20LG OA20C

Max losses [dB]


[dB]



1 x 24 NA 6 NA NA OA20C 1 x 33 13 NA OA17C NA OA17C 1 x 36.5 13 6 OA20C NA OA20C 2 x 29 13 7.2 OA17C OA17C OA17C 2 x 31.5 13 7.6 OA20C OA20C/OA20LG OA20C 3 x 26.5 13 7.6 OA17C OA17C OA17C 3 x 29.5 13 7.6 OA20C OA20C/OA20LG OA20C

Max losses [dB]


[dB]



1 x 25 (23) * NA 7.6 NA NA OA17C 1 x 34 13 NA OA17C NA OA17C 1 x 37 13 NA OA20C NA OA20C 2 x 29.5 13 7.6 OA17C OA17C OA17C 2 x 32 13 7.6 OA20C OA20C/OA20LG OA20C 3 x 27 13 7.6 OA17C OA17C OA17C 3 x 30 13 7.6 OA20C OA20C/OA20LG OA20C 4 x 26 13 7.6 OA17C OA17C OA17C 4 x 28.5 13 11.6 OA20C OA20C/OA20LG OA20C 5 x 27.5 13 11.6 OA20C OA20C/OA20LG OA20C 6 x 26.5 13 11.6 OA20C OA20C/OA20LG OA20C




Table 36: Transmission table designed for 80 channels (using 2 x MDU-40 with built-in VOA), Tr Group C


Table 37: Transmission table for systems with OADM. 16 channels, Tr Group C

Max losses [dB]


side [dB]


[dB]

Max loss at OADM

[dB] Power amp

All OADM amps

Pre amp

2 x 32 12 7.6 22 OA17C OA17C OA17C 3 x 28 (VOA) 10 7.6 22 OA17C OA17C OA17C 2 x 35 12 7.6 22 OA20C OA20C/OA20LG OA20C 3 x 33 (VOA) 10 7.6 22 OA20C OA20C/OA20LG OA20C

Table 38: Transmission table for systems with OADM. 32 channels, Tr Group C

Max losses [dB]


side [dB]


[dB]

Max loss at OADM

[dB] Power amp

All OADM amps

Pre amp

2 x 29 12 7.6 22 OA17C OA17C OA17C 3 x 27 (VOA) 10 7.6 22 OA17C OA17C OA17C 2 x 33 12 7.6 22 OA20C OA20C/OA20LG OA20C 3 x 31 (VOA) 10 7.6 22 OA20C OA20C/OA20LG OA20C

Table 39: Transmission table for systems with OADM, 40 channels (using MDU-40 with built-in VOA), Tr Group C

Max losses [dB]


side [dB]


[dB]

Max loss at OADM

[dB] Power amp

All OADM amps

Pre amp

2 x 29 13 7.6 22 OA17C OA17C OA17C 3 x 26 13 7.6 22 OA17C OA17C OA17C 2 x 32 13 7.6 22 OA20C OA20C/OA20LG OA20C 3 x 30 13 7.6 22 OA20C OA20C/OA20LG OA20C

Max losses [dB]


[dB]



1 x 22 (20) * NA 7.6 NA NA OA20C 1 x 33 14.5 NA OA20C NA OA20C 2 x 29 14.5 7.6 OA20C OA20C/OA20LG OA20C 3 x 27 14.5 7.6 OA20C OA20C/OA20LG OA20C 4 x 26 14.5 7.6 OA20C OA20C/OA20LG OA20C 5 x 24 14.5 7.6 OA20C OA20LG OA20C 6 x 23 14.5 7.6 OA20C OA20LG OA20C




Table 40: Transmission table for systems with OADM, 80 channels (using 2 x MDU-40 with built-in VOA), Tr Group C

Max losses [dB]


side [dB]


[dB]

Max loss at OADM

[dB] Power amp

All OADM amps

Pre amp

2 x 28 14.5 7.6 22 OA20C OA20LG OA20C 2 x 29 14.5 7.6 22 OA20C OA20C/OA20LG OA20C 3 x 26 14.5 7.6 22 OA20C OA20LG OA20C




4.6 Power levels for long haul systems (7 links and more) A system can be designed for different maximum number of channels. To ensure a stable and predictable behavior of the received power levels no amplifier is allowed to be saturated when applying more channels. Moreover, input power must not saturate the amplifiers’ input power monitor. OA17C R2B or later, OA20C and OA20C/LG have two input power ranges, Low input mode (denoted as ConstantGainLI) and High Input mode (denoted as ConstantGainHI). The mode ConstantGainLI must always be used for these amplifiers. OA26C has only one range which is called ConstantGain. The table below shows allowed input powers for all amplifiers and modes when used in long-haul systems.

OA17C OA20C OA20LG OA26CPin min -35 -35 -31 NAPin max -5 -5 -1 NAPin min NA NA NA -10Pin max NA NA NA +20

ConstantGainLI (default)

ConstantGain Table 41. Total input power limits for amplifiers in long haul systems

4.6.1 Booster output power for long haul systems In long-haul systems the channel output power from the booster should no longer be equal as in shorter systems. A pre-emphasis profile that is described below must be used as well as an OCM card to keep track on the individual channel powers.

Figure 12. Flat spectra to the left used in shorter systems and pre-emphasis spectra to the right used in long-haul systems.

When designing and installing long haul systems following channel output powers from the booster must be used. An OCM-board must be used to monitor this. The different tables correspond to the different amplifier that is used, the pre-emphasis profile that is wanted and the amount of channels that the system is designed for. These parameters are decided by the responsible network designer and the table to be used should be provided before going out to the first site. If a long haul system has OADM nodes with ROADM the tables below must be used at the booster amplifier (at terminal multiplexer node). But at all OADM boosters the corresponding table in section 4.4 should be used (with flat output).

Wavelength (nm)

Spe

ctra

l pow

er

dBm

/0,1

nm

Wavelength (nm)

Spe

ctra

l pow

er

dBm

/0,1

nm

Flat spectra Pre-emphasis spectra

Wavelength (nm)

Spe

ctra

l pow

er

dBm

/0,1

nm

Wavelength (nm)

Spe

ctra

l pow

er

dBm

/0,1

nm

Flat spectra Pre-emphasis spectra




Table 42. Channel output powers for long haul systems.

17 dBm output with 40 channels 20 dBm output with 40 channels 20 dBm output with 80 channels

919 0,8 919 3,6 918,5 0,6920 0,8 920 3,6 919 & 919,5 0,6921 0,8 921 3,6 920 & 920,5 0,6922 0,8 922 3,6 921 & 921,5 0,6923 0,6 923 3,4 922 & 922,5 0,6924 0,4 924 3,2 923 & 923,5 0,4925 0 925 2,8 924 & 924,5 0,2926 -0,4 926 2,4 925 & 925,5 -0,2927 -0,4 927 2,4 926 & 926,5 -0,6928 -0,4 928 2,4 927 & 927,5 -0,6929 -0,2 929 2,6 928 & 928,5 -0,6930 -0,2 930 2,6 929 & 929,5 -0,4931 -0,2 931 2,6 930 & 930,5 -0,4932 0 932 2,8 931 & 931,5 -0,4933 0 933 2,8 932 & 932,5 -0,2934 0 934 2,8 933 & 933,5 -0,2935 0 935 2,8 934 & 934,5 -0,2936 0 936 2,8 935 & 935,5 -0,2937 0,2 937 3 936 & 936,5 -0,2938 0,2 938 3 937 & 937,5 0939 0,2 939 3 938 & 938,5 0940 0,4 940 3,2 939 & 939,5 0941 0,6 941 3,4 940 & 940,5 0,2942 0,6 942 3,4 941 & 941,5 0,4943 0,6 943 3,4 942 & 942,5 0,4944 0,8 944 3,6 943 & 943,5 0,4945 1 945 3,8 944 & 944,5 0,6946 1,2 946 4 945 & 945,5 0,8947 1,4 947 4,2 946 & 946,5 1948 1,6 948 4,4 947 & 947,5 1,2949 1,6 949 4,4 948 & 948,5 1,4950 1,6 950 4,4 949 & 949,5 1,4951 1,6 951 4,4 950 & 950,5 1,4952 1,6 952 4,4 951 & 951,5 1,4953 1,4 953 4,2 952 & 952,5 1,4954 1 954 3,8 953 & 953,5 1,2955 0,8 955 3,6 954 & 954,5 0,8956 0,8 956 3,6 955 & 955,5 0,6957 0,8 957 3,6 956 & 956,5 0,6958 0,8 958 3,6 957 & 957,5 0,6

958 0,6

Channel number (odd channels power = even

channels power)

Channel Output power (dBm)


Channel number

Channel Output power (dBm)Channel number




When using the TNDT program to design networks there is a possibility to use the VOA:s to create a preemphasis tilt. Output power tables for long haul systems designed with 1dB tilt are depicted below.

Table 43. Channel output powers for long haul systems designed with 1 dB tilt.

20 dBm output with 40 channels 20 dBm output with 80 channels1 dB tilt 1 dB tilt

919 3,1 918,5 0,1920 3,1 919 & 919,5 0,1921 3,1 920 & 920,5 0,1922 3,1 921 & 921,5 0,1923 2,7 922 & 922,5 0,1924 2,7 923 & 923,5 -0,3925 2,5 924 & 924,5 -0,3926 2,3 925 & 925,5 -0,5927 2,3 926 & 926,5 -0,7928 2,3 927 & 927,5 -0,7929 2,3 928 & 928,5 -0,7930 2,3 929 & 929,5 -0,7931 2,3 930 & 930,5 -0,7932 2,5 931 & 931,5 -0,7933 2,5 932 & 932,5 -0,5934 2,7 933 & 933,5 -0,5935 2,7 934 & 934,5 -0,3936 2,7 935 & 935,5 -0,3937 2,9 936 & 936,5 -0,3938 2,9 937 & 937,5 -0,1939 3,1 938 & 938,5 -0,1940 3,3 939 & 939,5 0,1941 3,3 940 & 940,5 0,3942 3,5 941 & 941,5 0,3943 3,5 942 & 942,5 0,5944 3,7 943 & 943,5 0,5945 3,9 944 & 944,5 0,7946 4,3 945 & 945,5 0,9947 4,3 946 & 946,5 1,3948 4,5 947 & 947,5 1,3949 4,5 948 & 948,5 1,5950 4,7 949 & 949,5 1,5951 4,7 950 & 950,5 1,7952 4,7 951 & 951,5 1,7953 4,5 952 & 952,5 1,7954 4,1 953 & 953,5 1,5955 4,1 954 & 954,5 1,1956 4,1 955 & 955,5 1,1957 4,1 956 & 956,5 1,1958 4,1 957 & 957,5 1,1

958 1,1


Channel number (odd channels power =

even channels power)

Channel Output power

(dBm)

Channel number




4.7 Minimum number of channels in long haul systems

The long haul systems need a minimum of 4 channels to function properly. This means that at least 4 channel must be installed from day one and also that at least 4 channels always need to be present in the system.

There is one exception to the rule: If you have a system with OADM nodes and if the channel band 951-958 (195.1 to 195.8 THz) is used for “next-neighbor” traffic (i.e. traffic in this band travels through 6 links or less). In this case the 4-channel rule can be disregarded.

4.8 Link loss tables for long haul systems (7 links or more)

In systems that have 7 links or more the link loss tables are different. The long-haul systems can only be installed when using G.652 standard fiber. The link loss tables in this section can be used to decide if a particular design is approved or not. If the design fails there is always a possibility to use the Transmode Network Design Tool (TNDT) to simulate a design. The TNDT will simulate the particular case you are working and can approve designs that tables do not. Contact Transmode TAC (http://tac.transmode.se) for information how to get started with TNDT.

4.8.1 Transceiver groups

Transponders/ transceivers from transceiver group C and D are allowed in the long-haul systems. Transceiver group D has better optical performance than transceiver group C.

Please observe that if transceivers from groups C and D are used in the same system, transceiver group C will limit the system.

In amplified systems it is vital that the input power to the receiver is correct and that the residual dispersion is in the allowed range. In the figure below the input powers and residual dispersion limits of all transponder/transceivers are given. Please note that these values are valid for long-haul systems. For shorter systems you can find the corresponding values in section 4.5.1.

Table 44. Input power values and allowed dispersion range for receivers in long-haul systems.

Transceiver Group C:

Transponders/MuxPonders using XFP’s with PIN- receiver (i.e. TRX100031/xxx) and XFP’s with APD-receiver (i.e. TRX100032/xxx) with FEC (G.709), i.e.;

• Tunable 10 G transponder: TP10GCLX/TC

• Tunable 10 G OTN transponder : TP10GOTN/TC

• Double 10 G transponder with XFP:s and FEC: TPD10GBE-BU

At installation During operation Min Max TRX100032 (APD receiver) -14+/-2 -14+/-5 -510 (-30 km SMF) 1020 (+60 km SMF)TRX100031 (PIN receiver) -9+/-2 -9+/-5 -510 (-30 km SMF) 680 (+40 km SMF)

1020 (+60 km SMF)Other Transponders listed below (with APD) -15+/-2 -15+/-5 -510 (-30 km SMF)

Residual dispersion (ps/nm) Receiver input power (dBm)






• 4x2G5-MXP10G Muxponder with line XFP and FEC

• MSMXP10G with line XFP and FEC: MS-MXP/10G


• 9xGbE/10G FEC Muxponder: GBE9/MXP10GFEC

• TP10GCLX/xxxxx with SW-release 10.0 and forward

• TPMR2500/xxxxx

• TPMR25-CIR/xxxxx

Comment: Transceiver Group C has better receiver and noise performance compared to Group A and B.

G.709- FEC (forward error correction) feature should always be used (even at 2.5Gb/s).


The two sub groups are denoted Group C/PIN and Group C/APD. All transceivers/transponders in Transceiver group C needs a minimum OSNR level of 18 dB to function properly. The OSNR must be measured at a resolution of 0.1 nm.

Transceiver Group D:

Transponder configurations with mix of:

• Extended reach Tunable 10 G transponder: TP10GTC-ER

• MSMXP10G with Tunable 10 G Extended reach interface: MS-MXP10G/TC-ER

• TPMR25-V2/xxxxx (2.5 Gbps)

Comment: Transceiver Group D has better receiver and noise performance compared to Group A, B and C. For “TPMR25-V2” G.709- FEC (forward error correction) feature should always be used. TP10GTC-ER transponder can be used with both G709 FEC (GFEC) and Extended FEC (EFEC). EFEC must be used when the transponder is used in Transceiver group D. If GFEC is used the transponder will fall under transceiver group C.

All transceivers/transponders in Transceiver group D needs a minimum OSNR level of 16 dB to function properly. The OSNR must be measured at a resolution of 0.1 nm.




4.8.2 Long haul systems designed for Transceiver group C


Please carefully read section 4.8.1 and especially note the difference in receiver dynamic range between PIN and APD receivers.

The tables below depict the allowed transmission links and allowed DCU/DCM losses at transmitting node and receiving node for different amplifier configurations. If PIN receivers are used the general rule is that there should be no DCU:s/DCM:s in the receiving node after the pre-amplifier. Please see ‘Dimension guidelines’ for specified losses of DCUs and DCMs and rules regarding the design when having PIN and APD receivers.


The Lineamps with marking “OA20C/OA20LG” means that it is the designers’ choice of amplifier between OA20C and OA20C/LG.

All long haul systems must be equipped with VOAs - Variable optical attenuators for all channels and OCM boards at terminal nodes. In the case of OADM-nodes OCM boards must be used at least when adding channels in the node. We recommend using OCM boards at the OADM boosters permanently.

Table 45: Transmission table Transceiver group C long haul for systems with OADM, 80 channels

Max losses [dB]


side [dB]


[dB]

Max loss at OADM

[dB] Power amp

All OADM amps

Pre amp

4 x 26.5 10 7.6 22 OA20LG OA20C/OA20LG OA20LG 5 x 25 10 7.6 22 OA20LG OA20C/OA20LG OA20LG

Table 46: Transmission table Transceiver group C long haul for systems with OADM, 40 channels

Max losses [dB]


side [dB]


[dB]

Max loss at OADM

[dB] Power amp

All OADM amps

Pre amp

4 x 29 8 7.6 22 OA20LG OA20C/OA20LG OA20LG 5 x 27.5 8 7.6 22 OA20LG OA20C/OA20LG OA20LG




Table 47: Transmission table Transceiver group C long haul designed for 80 channels

Table 48: Transmission table Transceiver group C long haul designed for 40 channels

Max losses [dB]


[dB]



7 x 24.5 10 7.6 OA20LG OA20C/OA20LG OA20LG8 x 23 10 5 OA20LG OA20C/OA20LG OA20LG

Max losses [dB]


[dB]



7 x 27 8 7.6 OA20LG OA20C/OA20LG OA20LG8 x 25 8 7.6 OA20LG OA20C/OA20LG OA20LG




4.8.3 Long haul systems designed for Transceiver group D


The tables below depict the allowed transmission and allowed DCU/DCM losses at transmitting node and receiving node for different amplifier configurations. Please see Dimension guidelines for specified losses of DCUs and DCMs.


The Lineamps with marking “OA20C/OA20LG” means that it is the designers’ choice of amplifier between OA20C and OA20C/LG.

The notation “X x Y + Z x Q” means that X links can be max Y dB and Z links can be max Q dB. It is not restricted in which order the links are placed.


For long systems, it has been shown that too much pre-compensation of dispersion on the booster side can result in problems with non-linear effects in the fiber. Therefore it is a rule that long-haul systems designed with transceiver group D cannot be Pre-compensated with more than 80 km on the booster side.

Table 49: Transmission table Transceiver group D long haul for systems with OADM, 80 channels

Max losses [dB] Max

DCU/DCM TX side

[km]


[dB]

Max loss at OADM

[dB] Power amp

All OADM amps

Pre amp

3 x 28 + 1 x 23.5 80 7.6 22 OA20C OA20C/OA20LG OA20C 2 x 28 + 3 x 23.5 80 7.6 22 OA20C OA20C/OA20LG OA20C

Table 50: Transmission table Transceiver group D long haul for systems with OADM, 40 channels

Max losses [dB]

Max DCU/DCM TX

side [km]


[dB]

Max loss at OADM

[dB] Power amp

All OADM amps

Pre amp

4 x 30 80 7.6 22 OA20C OA20C/OA20LG OA20C 5 x 29 80 7.6 22 OA20C OA20C/OA20LG OA20C




Table 51: Transmission table Transceiver group D long haul designed for 80 channels

Table 52: Transmission table Transceiver group D long haul designed for 40 channels

Max losses [dB] Max

DCU/DCM TX side

[km]



2 x 28 + 7 x 24 80 7.6 OA20C OA20C/OA20LG OA20C 2 x 28 + 8 x 23.5 80 7.6 OA20C OA20C/OA20LG OA20C

Max losses [dB]

Max DCU/DCM TX side

[km]



9 x 28 80 7.6 OA20C OA20C OA20C 10 x 28 80 7.6 OA20C OA20C OA20C




5 INSTALLATION & COMMISSIONING

Transceiver group A, B/APD, C/APD and D receivers have equal receiver dynamic ranges why these can be mixed as long as the system is designed following the design rules for group B transceivers.

The following instructions are written to fit Transceiver group A, B, C and D. If Transceiver group B or C with PIN receivers are going to be installed the received power into the receivers has to be higher. The input power level should in this case be between -4 dBm and -14 dBm.

If transceivers from group A, B/APD, C/APD and D are used together with transceivers from group B/PIN or C/PIN, the power level out from the demux shall be adjusted according to the transmitter group B/PIN and C/PIN. The receivers for group A, B/APD, C/APD and D must in this case individually be attenuated to fit their dynamic range. However, this combination is not recommended.

Please see ‘Dimensioning Guidelines’ for further information.




5.1 Overview schematic installation procedure

To ease the understanding of installation procedures please see below for an overview schematic.

Figure 13. Overview of the installation procedure

5.2 Installing long-haul systems (7 links or more)

Before starting to install a long haul system the responsible network designer must supply the installers with 2 things:

• Minimum link loss on each link in the system

• The second terminal node preamplifier gain


With this information you can continue the installation procedures below.

Terminal Multiplexer 1

Line amplifier

OADM site

Section 5.8.1 (first visit)

Section 5.3 (first visit)

Section 5.4

Section 5.5.1 (receiving path)

Line amplifier

OADM site

Section 5.8.2 (second visit)

Section 5.6 (second visit)

Section 5.4

Section 5.5.2 (Transmitting path)

Overview installation procedure West direction

Overview installation procedure East direction

If next site is a line

amplifier

If next site is an OADM

Repeat until you reach TM 2


If next site is an

OADM

If next site is a line amplifier





Line amplifier

OADM site

Section 5.8.1 (first visit)

Section 5.3 (first visit)

Section 5.4

Section 5.5.1 (receiving path)

Line amplifier

OADM site

Section 5.8.2 (second visit)

Section 5.6 (second visit)

Section 5.4

Section 5.5.2 (Transmitting path)

Overview installation procedure West direction

Overview installation procedure East direction

If next site is a line

amplifier

If next site is an OADM



If next site is an

OADM

If next site is a line amplifier







5.3 First Terminal Multiplexer node installation

If the design is without power amplifier please go to section 5.3.2

5.3.1 Transmitting path - Design with power amplifier

Step 1 Connect DCU and OIU to mux if applicable.

Step 2 Attach OSC unit (if applicable) and line patch cords to the power-amplifier. If Power extender is designed to be used; do not power up or connect input/output signals to the Power extender until prompted to do so in the manual. It is also important that no other component (OSC-unit for example) is connected after the Power extender.

Step 3 Power up one transponder and set lasermode ON (i.e. disable the ALS function) and connect this to the mux. Do not connect the receiver [Rxport] of the transponder to the demux.

Step 4 Measure power level out from the Mux Example having a +7 dBm TP: P=+4 dBm

Step 5 In systems without VOA:s: Add an appropriate in-line attenuator between transponder and mux obtaining a power level of -6 dBm ±1 dB. Example cont; 10 dB attenuator gives -6 dBm. If VOAs are used: Connect VOA instead of the in-line attenuator between transponder and mux (not 40-channel MDU which has inbuilt VOAs). Fill in the VOA's descriptions field. E.g. "Channel #921". Set mode to "Constant attenuation". Set admin status up on VOA-port and attenuation to maximum (20 dB). Measure output power of mux and decrease VOA so that output power from mux is -10 dBm.

Step 6 In systems without VOA:s: Read the received power level to the power-amplifier from the GUI. Add an appropriate fixed attenuator between the mux (DCU/OIU if applicable) and the amplifier obtaining an input power level of Pinmax/ch±1 dB to the power-amplifier. If VOAs are used: Read the received power level to the power-amplifier from the GUI. Add an appropriate fixed attenuator between the mux (DCU/OIU if applicable) and the amplifier aiming for an input power level of Pinmax/ch. If you have the choice between an attenuator of high attenuation and low attenuation, always choose the attenuator with low value.

Step 7 Attach line patch cords to pre-amplifier. Do not connect the output port of the preamplifier yet.




Step 8 Set the power-amplifier as following For OA17C and OA2-17/17CC: For OA17C R2B or later and OA2-17/ R2B or later - Set the amplifiers to ConstantGainLI-mode (Low input power range). Set wanted gain to 23 dB. For OA17C R2A and earlier and OA2-17/ R2A and earlier - Set the laserTempHighRelative to 45°C - Set the laserTempLowRelativeThld to -25°C Set Loss of Signal threshold to –28 dBm Set the admin status to up. For OA20C and OA2-20/20CC: Set the amplifiers to ConstantGainLI-mode (Low input power range). Set wanted gain to 26 dB. Set Loss of Signal threshold to –28 dBm Set the admin status to up. For OA20C/LG and OA2-20/20/C/LG: Set mode to ConstantGainLI-mode (Low input range) Set wanted gain to 22 dB. Set the admin status to up.

Step 9 Connect OCM (if applicable) or OSA to power-amplifier monitor port. Fill in the monitor ports’ insertion loss for OCM.

Step 10 If VOA is used: Adjust VOA so that input power level at the power amplifier corresponds to pinmax in section 4.4. If VOA and OCM is used: (always for long-haul systems) Check that output power levels are correct according to “poutmax/ch” in section 4.4 (4.6 if it is a long-haul system). Use VOA to correct output power. If Optical control-loop is used: Set up the channel control as described in ‘IC-Opt_Loop’. The “wanted power” level should be equal to “poutmax/ch” described in section 4.4 (4.6 if it is a long-haul system).

Step 11 Set pre amplifier accordingly: For OA10C/FG: Set Pre amplifer gain to 20. For OA17C and OA2-17/17CC: Set the amplifiers to ConstantGainLI-mode (Low input power range). Set pre amplifier gain to 23. For OA17C R2A and earlier and OA2-17/17cc R2A and earlier - Set the laserTempHighRelativeThreshold to 45°C - Set the laserTempLowRelativeThreshold to -25°C For OA20C and OA2-20/20CC: Set the amplifiers to ConstantGainLI-mode (Low input range). Set pre amplifier gain to 26. For OA20C and OA2-20/20/C/LG: Set the preamplifiers to ConstantGainLI-mode (Low input range). Set the preamplifier gain to 22 dB. Set the admin status to down.

Do not connect the output port of the preamplifier yet.

Step 12 Power up and connect the other transponders to the muxRXport. (Set Lasermode ON). Connect VOA between TP and mux if applicable. Do not connect the receiver [Rxport] of the transponder to the demux.




Step 13 In systems without VOAs: Attach appropriate attenuators after the transponders equalizing the output power level of the power amplifier with the first installed transponder. Start using an attenuator similar used in other TPs having the same output power. Use the OSA (or similar) to measure the relative power difference. The output levels should be within ±1 dB from the first installed transponder. If VOA is used: Adjust VOA so that input power level at the power amplifier corresponds to pinmax for applicable table in section 4.4. Then adjust VOA so that output power spectra is flat (within 0.5 dB) with the help of external OSA. If VOA and OCM is used: (always present in long-haul systems) Use the OCM to measure the relative power difference. Check that output power levels are correct according to “poutmax/ch” in section 4.4 (4.6 if it is a long-haul system). Use VOA to correct output power. If Optical control-loop is used: Set up the channel control as described in ‘IC-Opt_Loop’. The “wanted power” level should be equal to “poutmax/ch” described in section 4.4 (4.6 if it is a long-haul system).

Step 14 Fine tune the gain of the power-amplifier achieving an output power of Poutmax @ present number of channels. See applicable table in section 4.4. If VOA and OCM are used this step should be skipped. Example: Target Pout=9.4 dBm having 3 channels in a 16 channel system. Take note that the Output power reading showed in the GUI also contains internally generated ASE (how to calculate signal output power is described in section 4.4).

Step 15 If Power extender module is used follow instructions in ‘IC_OA26C’ to install the power extender.

Step 16 Read “Tx power level” from the booster amplifier and document the value. If Power extender is used document both the output power of the ordinary booster and the Power extender.

Step 17 Document power levels of the installed channels out from the monitor port using the OSA (or similar). If the OCM-card is used you can save the reference power levels using the GUI.

Step 18 Make sure that all equipment including attenuators and input/ output amplifier power is documented.

Step 19 Save the data using ENM GUI.

Go to section 5.4 if next site is a line amplifier, 5.5 if it is the second terminal node or 5.8.1 if it is an OADM node.




5.3.2 Transmitting path - Design without power amplifier

Step 1 Connect DCU and OIU to mux if applicable.

Step 2 Connect all transponders to the mux. Add if needed an attenuator between transmitter and mux as following; 7 dBm 2.5 Gb/s transmitter : 8 dB attenuator. All other transmitters: Add an appropriate attenuator achieving about -1 dBm output power after the attenuator. ( No attenuators are needed for systems if only high power 7 dBm transponders are going to be used.)

Step 3 Power up the transponders and set lasermode ON (i.e. disable the ALS function) Do not connect the receiver [Rxport] of the transponder to the demux.

Step 4 In case of OA10C/FG preamplifier Set the pre amplifier in ConstantGain mode In case of OA17C, OA2-17/17CC, OA20C, OA2-20/20C, OA20C/LG or OA2-20/20/C/LG - Set the pre-amplifier in ConstantGainLI-mode For OA17C R2A and earlier and OA2-17/17cc R2A and earlier - Set the laserTempHighRelative to 45°C - Set the laserTempLowRelativeThld to -25°C Set the constant gain to 15 dB Set the admin status to down.

Step 5 Attach OSC unit patch cords if applicable.

Step 6 Attach line patch cords to pre amplifier. Do not connect the output port of the preamplifier yet.



Go to section 5.4 if next site is a line amplifier, 5.5 if it is the second terminal node or 5.8.1 if it is an OADM node.




5.4 Line amplifier installation

Step 1 Connect the transmitting fiber coming from the previous node to the OSC-module and DCU as designed. For more information see ‘Generic Cabling Guide’ within Volume B (Installation & Commissioning) of how to do that.

Step 2 For both directions: Set the amplifiers in constant gain mode. For OA17C and OA2-17/17CC: Set wanted gain to 23 dB. Set ConstantGainLI mode (Low input range). For OA17C R2A and earlier and OA2-17/17cc R2A and earlier - Set the laserTempHighRelativeThreshold to 45°C - Set the laserTempLowRelativeThreshold to -25°C Set the admin status to up. For OA20C and OA2-20/20CC: Set wanted gain to 26 dB. Set ConstantGainLI mode (Low input range). Set the admin status to up. For OA20C/LG and OA2-20/20/C/LG: Set wanted gain to 22 dB. Set ConstantGainLI mode (Low input range). Set the admin status to up.

Step 3 Read received power level (“Rx power level” on amplifier).

Step 4 Calculate the link loss from previous node using “Tx power level” from previous node and “Rx power level” from present node.

Step 5 Compare measured link loss with the expected loss and attenuate link if necessary. The position of the attenuator should be according to Figure 4 in section 3.1.2. For systems with 1-6 spans: Attenuate link so that link loss is at least equal to optimal gain of line amplifier. Link loss should be no less than (optimal gain – 0,5 dB). If the link loss is above optimal gain of the amplifier continue to next step. Optimal gain for different amplifiers can be found in section 4.4, Table 3. If Power extender is used on previous site; Attenuate link so that link loss is at least equal to optimal gain of line amplifier plus 6 dB. For long haul systems (7 links or more): Compare measured link loss with minimum loss that the network designer has calculated on the specific link. If the loss is below this value insert attenuators until minimum link loss is reached. If 2-channel VOA is used for inline-attenuation, we recommend using a mix of fixed attenuators and 2-channel VOA to optimize performance of the system. The attenuation set in 2-channel VOA should preferably be in the range 3-6 dB. See 3.2.1.3 for more information on the 2-channel VOA.




Step 6 Set lossOfSignalThreshold of amplifier to [–1*(link loss in dB) – 10 ] dBm or -40 dBm, whichever is the highest. Example: assuming Link loss = 22 dB lossOfSignalThreshold = -22 -10 = -32 dBm (which is higher than -40 dBm)

Step 7 Gain setting: The thumb rule is to always set the gain equal to the link loss of the previous link (as calculated in Step 5). Observe that the gain should be equal to total link loss (including all attenuators that are added). There are four exceptions where the gain can deviate from the total link loss: 1. The previous link loss is above the maximum settable gain of the amplifier. In this case the maximum gain is set. The difference between link loss and set gain is noted as a “back-log” that will be recuperated next link. The maximum gain for each amplifier type can be found in section 4.3. Example: The link loss including all attenuators is 32 dB and the line amplifier is an OA20C (in constantGainLi). Calculation according to table in section 4.3 gives 32-1,5= 30,5 dB. But it is only possible to set gains up to 30 dB. The backlog in gain is 32-30=2 dB. The backlog is noted and remembered at next amplifier site. 2. The previous link loss was above the maximum gain (as above). In this case the gain must be set to link loss plus backlog in gain from previous link. Example: The link loss including all attenuators is 25 and the line amplifier is an OA20C (in constantGainLi). The backlog in gain is 2 dB. The gain on the line-amp must be set to 25 + 2 = 27 dB. 3. A combination of 1) and 2) above. The link loss is above the maximum gain (as in 1)) and there is a backlog in gain from previous link (as in 2)). In this case the gain must be set to calculated max gain (according to section 4.3) plus backlog in gain from previous link. Example: The link loss including all attenuators is 30 dB and the line amplifier is an OA20C (in constantGainLi). The backlog in gain is 1 dB. Calculation of gain according to formula gives 30 - 1,5 = 28,5 dB. Including the backlog in gain we get 28,5 + 1 = 29,5 dB. The gain on the line-amp must be set to 29,5 dB. 4. The previous site had a Power extender. In this case the gain should be set as link loss minus the gain set on the Power extender at previous site. Remember that there can be combination of all 4 rules. Example: The link loss including all attenuators is 39 dB and the line amplifier is an OA20C (in constantGainLi). The backlog in gain is 1 dB and the Power extender in previous site has gain 6.2 dB. Calculation of gain according to rule 4: Gain should be 39 – 6.2 = 32,8 dB. But following rules 1-4 the formula gives 32,8 -1,5 dB = 31.3 dB. The gain will be set to 30 dB and the backlog to next site will be 1 dB (from previous) plus 1,3 (from current)= 2,3 dB. General note: The internal generated ASE from the amplifier can be significant having a low input power into an amplifier (normally when having only one or two channels). This will make the simple calculation “input power + gain = output power” incorrect. The output power will be higher than calculated due to the ASE.

Step 8 Connect the signals to the amplifier facing the next site; see ‘Generic Cabling Guide’ within Volume B (Installation & Commissioning) of how to do that. If a Power extender (OA26C) is designed to be used towards the direction of the next site, install it following the instructions in ‘IC_OA26C’. Do not power up or connect input signal to the Power extender until prompted to do so in the manual.





Step 10 Read “Tx power level” and document the value. If Power extender is used document both the output power of the ordinary line amplifier and the Power extender.

Step 11 Make sure that all equipment is documented.

Step 12 Go to the next amplifier site.

Go to section 5.4 again if next site is a line amplifier, 5.5 if it is the second terminal node or 5.8.1 if it is an OADM node (5.8.2 if it is the second visit).




5.5 Second Terminal Multiplexor node

5.5.1 Receiving path

Step 1 Connect the fibers coming from previous node to the OSC-module and DCU-modules as designed. For more information see ‘Generic Cabling Guide’ within Volume B ‘Installation & Commissioning’ of how to do that.

Step 2 Connect input to pre-amplifier.

Step 3 For receiving direction (pre amplifier): Set the admin status to down. For OA10C/FG: Set the pre amplifier in ConstantGain mode. Set Pre amplifer gain to 20 dB. For OA17C and OA2-17/17CC: Set the amplifiers in ConstantGainLI mode (Low input range). Set pre amplifier gain to 23 dB. For OA17C R2A and earlier and OA2-17/17cc R2A and earlier - Set the laserTempHighRelativeThreshold to 45°C - Set the laserTempLowRelativeThreshold to -25°C For OA20C and OA2-20/20CC: Set the amplifiers in ConstantGainLI mode (Low input range). Set pre amplifier gain to 26 dB. For OA20C/LG and OA2-20/20/C/LG: Set the amplifiers in ConstantGainLI mode (Low input range). Set pre amplifier gain to 22 dB. Do not connect the output port of the preamplifier yet.

Step 4 Read received power level in to the pre amplifier.

Step 5 Calculate the link loss from previous node.




Step 6 Compare measured link loss with the expected loss and attenuate link if necessary. The position of the attenuator should be according to Figure 4 in section 3.1.2. For systems with 1-6 spans: Attenuate link so that link loss is at least equal to optimal gain of the pre amplifier. Link loss should be no less than (optimal gain – 0,5 dB). If the link loss is above optimal gain of the amplifier continue to next step. Optimal gain of different amplifiers can be found in section 4.4, Table 3. If Power extender is used on previous site; Attenuate link so that link loss is at least equal to optimal gain of line amplifier plus 6 dB. For long haul systems (7 links or more): Compare measured link loss with minimum loss that network designer has calculated on the specific link. If the loss is below this value insert attenuators until minimum link loss is reached. If 2-channel VOA is used for inline-attenuation, we recommend using a mix of fixed attenuators and 2-channel VOA to optimize performance of the system. The attenuation set in 2-channel VOA should preferably be in the range 3-6 dB. See 3.2.1.3 for more information on the 2-channel VOA.

Step 7 Connect the preamplifier out [TX] to the DCU (if applicable), to the OIU (if applicable) and to the demux but do not connect the Transponder’s RX port yet.

Step 8 Connect the pre amplifiers monitor port to the OCM-card (if applicable). Fill in the monitor ports’ insertion loss in the GUI interface on the OCM card. The monitor port loss can be found in the GUI for the OA that is used.

Step 9 Set admin status to up on pre amplifier.

Step 10 For systems with 1-6 spans: Make sure that the output power from the preamplifier Pout < Poutmax at the present no of channel. See allowed power levels in section 4.4. Remember that if few channels are present a large portion of the power is ASE. For more details regarding this see section 4.4. Adjust pre-amplifier gain if necessary. Attach an OCM or OSA to the monitor port and document the power levels. If an OSA is used measure and record OSNR (@ resolution of 0.1 nm) For long haul systems (7 links or more): Set gain on pre-amplifier. The gain on the pre-amplifier is supplied from the Network designer.

Step 11 Check each channel power by connecting a power meter to the demux output ports.

Step 12 Add an appropriate attenuator after the pre amplifier achieving required power level: For systems with 1-6 spans: Transponders -15 dBm ± 4 dB XFP with APD (i.e. TRX100032) -14 dBm ± 4 dB XFP with PIN diode (i.e. TRX100031) -9 dBm ± 4 dB For long haul systems (7 links or more): Transponders -15 dBm ± 2 dB XFP with APD (i.e. TRX100032) -14 dBm ± 2 dB XFP with PIN diode (i.e. TRX100031) -9 dBm ± 2 dB




Step 13 Set lossOfSignalThreshold of pre amplifier to [–1*(link loss in dB) – 10 ] dBm or -40 dBm, whichever is the highest. Assume a Link loss = 22 dB lossOfSignalThreshold = -22 -10 = -32 dBm (which is higher than -40 dBm)

Step 14 Connect the demux to the TPs.

Step 15 Read the received power levels on the LINE side for the TP via the GUI. The power levels should be as suggested in Step 12. Adjust pre amplifier gain if needed.

Step 16 Set Low rx power level at -20 dBm for all TPs having APDs. Set Low rx power level at -14 dBm for all TPs having PINs. (Some boards support absolute threshold settings while others have a low power threshold relative to sensitivity.)

Step 17 Document power levels and attenuation values.

Step 18 Loopback client interfaces i.e. connect client TX with client RX, for transponders that doesn’t have internal loop back feature. Please note that you have to go back to this node to connect client equipment after transmission verification. (Alternatively, label the patch cords properly so you can ask other personnel to connect client side after you are ready at the first terminal node.)

Step 19 For interfaces having loop back feature. Make sure that the client interfaces are within their operating ranges. If not, use attenuators. Connect client interfaces.

If the design is without power amplifier please go to section 5.5.3.




5.5.2 Transmitting path - Design with power amplifier

If the design is without power amplifier please go to section 5.5.3.

Step 1 Connect DCU and OIU to the MUX if applicable.

Step 2 Attach OSC unit (if applicable) and line patch cords to the power and pre-amplifiers. If Power extender is designed to be used; do not power up or connect input/output signals to the Power extender until prompted to do so in the manual. It is also important that no other component (OSC-unit for example) is connected after the Power extender.

Step 3 Set the power-amplifier as following For OA17C and OA2-17/17CC: For OA17C R2B or later and OA2-17/ R2B or later - Set mode to ConstantGainLI (Low input power range) Set wanted gain to 23 dB. For OA17C R2A and earlier and OA2-17/ R2A and earlier - Set the laserTempHighRelative to 45°C - Set the laserTempLowRelativeThld to -25°C Set Loss of Signal threshold to –28 dBm Set the admin status to up. For OA20C and OA2-20/20CC: Set mode to ConstantGainLI (Low input power range) Set wanted gain to 26 dB. Set Loss of Signal threshold to –28 dBm Set the admin status to up. For OA20C/LG and OA2-20/20/C/LG: Set mode to ConstantGainLI (Low input power range) Set wanted gain to 22 dB. Set Loss of signal to -28 dBm Set the admin status to up.

Step 4 Power up one transponder and set lasermode ON (i.e. disable the ALS function) and connect this to the mux. (The Rx port should already be connected.)

Step 5 Measure power level out from the Mux Example having a +7 dBm TP: P=-+4 dBm

Step 6 In systems without VOA:s: Add an appropriate in-line attenuator between transponder and mux obtaining a power level of -6 dBm ±1 dB. Example cont; 10 dB attenuator gives -6 dBm. If VOAs are used: Connect VOA instead of the in-line attenuator between transponder and mux (not 40-channel MDU which has inbuilt VOAs). Fill in the VOA's descriptions field. E.g. "Channel #921". Set mode to "Constant attenuation”. Measure output power of mux and decrease VOA so that output power from mux is -10 dBm.




Step 7 In systems without VOA:s: Read the received power level to the power-amplifier from the GUI. Add an appropriate fixed attenuator between the mux (DCU/OIU if applicable) and the amplifier obtaining an input power level of Pinmax/ch±1 dB to the power-amplifier. If VOAs are used: Add an appropriate fixed attenuator between the mux (DCU/OIU if applicable) and the amplifier aiming for an input power level of Pinmax/ch. If you have the choice between an attenuator of high attenuation and low attenuation, always choose the attenuator with low value.

Step 8 If Power extender module is used follow instructions in ‘IC_OA26C’ to install the power extender.

Step 9 Connect OCM (if applicable) or OSA to power-amplifier monitor port. If Power extender is used, OCM or OSA should already be connected the Power extender monitor port.

Step 10 If VOA is used: Adjust VOA so that input power level at the power amplifier corresponds to pinmax in section 4.4. If VOA and OCM is used: (always present in long-haul systems) Check that output power levels are correct according to “poutmax/ch” in section 4.4 (4.6 if it is a long-haul system). Use VOA to correct output power. If Optical control-loop is used: Set up the channel control as described in ‘IC-Opt_Loop’. The “wanted power” level should be equal to “poutmax/ch” described in section 4.4 (4.6 if it is a long-haul system).

Step 11 Power up and connect the other transponders to the muxRXport. (Set Lasermode ON). Connect VOA between TP and mux if applicable.

Step 12 In systems without VOAs: Attach appropriate attenuators after the transponders equalizing the output power level of the power amplifier with the first installed transponder. Start using an attenuator similar used in other TPs having the same output power. Use the OSA (or similar) to measure the relative power difference. The output levels should be within ±1 dB from the first installed transponder. If VOA is used: Adjust VOA so that input power level at the power amplifier corresponds to pinmax for applicable table in section 4.4. If VOA and OCM is used: (always for long-haul systems) Use the OCM to measure the relative power difference. Check that output power levels are correct according to “poutmax/ch” in section 4.4 (4.6 if it is a long-haul system). Use VOA to correct output power. If Optical control-loop is used: Set up the channel control as described in ‘IC-Opt_Loop’. The “wanted power” level should be equal to “poutmax/ch” described in section 4.4 (4.6 if it is a long-haul system).

Step 13 Fine tune the gain of the power-amplifier achieving an output power of Poutmax @ present number of channels. See applicable table in section 4.4. If VOA and OCM are used this step should be skipped. Example: Target Pout=9.4 dBm having 3 channels in a 16 channel system. Take note that the Output power reading showed in the GUI also contains internally generated ASE (how to calculate signal output power is described in section 4.4).

Step 14 Read “Tx power level” from the booster amplifier and document the value. If Power extender is used document both the output power of the ordinary booster and the Power extender.




Step 15 Document power levels of the installed channels out from the monitor port using the OSA (or similar). If the OCM-card is used you can save the reference power levels using the GUI.

Step 16 Attach OSC unit (if applicable) and connect line patchcords to the power amplifier. If Power extender is used skip this step. Do not connect any attenuators or OSC-unit after the output of the Power extender.

Step 17 Save the data using ENM GUI if anything is changed in the amplifier nodes.

Step 18 Make sure that all equipment including attenuators is documented.


Step 20 Make sure that all equipment including attenuators is documented.

Go to section 5.4 if next site is a line amplifier, 5.6 if it is the first terminal node or 5.8.2 if it is an OADM node.




5.5.3 Transmitting path – Design without power amplifier

Step 1 Connect DCU and OIU to the mux if applicable.

Step 2 Connect all transponders to the mux. Add if needed an attenuator between transmitter and mux as following; No attenuators. 7 dBm 2.5 Gb/s transmitter : 8 dB attenuator. All other transmitters: Add an appropriate attenuator achieving about -1 dBm output power after the attenuator. ( No attenuators are needed for systems if only high power 7 dBm transponders are going to be used.)

Step 3 Power up the transponders and set lasermode ON (i.e. disable the ALS function) Do not connect the receiver [Rxport] of the transponder to the demux.

Step 4 In case of OA10C/FG preamplifier: -Set the pre amplifier in ConstantGain mode. In case of OA17C, OA2-17/17CC, OA20C, OA2-20/20C, OA20C/LG or OA2-20/20/C/LG - Set the pre-amplifier in ConstantGainLI mode. For OA17C R1A and OA2-17/17cc R1A - Set the laserTempHighRelative to 45°C - Set the laserTempLowRelativeThld to -25°C Set the constant gain to 15 dB Set the admin status to down. Do not connect the output port of the preamplifier yet.

Step 5 Attach OSC unit patch cords if applicable.

Step 6 Attach line patch cords to pre amplifier. Do not connect the output port of the preamplifier yet.



Go to section 5.4 if next site is a line amplifier, 5.6 if it is the first terminal node or 5.8.2 if it is an OADM node.




5.6 Second visit at First Terminal node

Go back to the First Terminal node

5.6.1 Receiving path

Step 1 Set the admin status to up for the pre amplifier.

Step 2 Read received power level in to the pre amplifier.

Step 3 Read the output power from the previous node - upstream.

Step 4 Calculate the link loss from previous node.

Step 5 Compare measured link loss with the expected loss. For systems with 1-6 spans: Attenuate link so that link loss is at least equal to optimal gain of the pre amplifier. Link loss should be no less than (optimal gain – 0,5 dB). If the link loss is above optimal gain of the amplifier continue to next step. Optimal gain of different amplifiers can be found in section 4.4, Table 3. If Power extender is used on previous site (facing first Terminal node); Attenuate link so that link loss is at least equal to optimal gain of pre-amplifier plus 6 dB. For long haul systems (7 links or more): Compare measured link loss with minimum loss that network designer has calculated on the specific link. If the loss is below this value insert attenuators until minimum link loss is reached. If 2-channel VOA is used for inline-attenuation, we recommend using a mix of fixed attenuators and 2-channel VOA to optimize performance of the system. The attenuation set in 2-channel VOA should preferably be in the range 3-6 dB. See 3.2.1.3 for more information on the 2-channel VOA.

Step 6 Connect the preamplifier out [TX] to the DCU (if applicable), to the OIU (if applicable) and to the demux but do not connect the Transponder’s RX port yet.

Step 7 Connect the pre amplifiers monitor port to the OCM-card (if applicable). Fill in the monitor ports’ insertion loss in the GUI interface on the OCM card. The monitor port loss can be found in the GUI for the OA that is used.

Step 8 Set pre-amplifier admin status to up.




Step 9 For systems with 1-6 spans: Make sure that the output power from the preamplifier Pout < Poutmax at the present no of channel. See allowed power levels in section 4.4. Remember that if few channels are present a large portion of the power is ASE. For more details regarding this see section 4.4. Adjust pre-amplifier gain if necessary. Attach an OCM or OSA to the monitor port and document the power levels. If an OSA is used measure and record OSNR (@ resolution of 0.1 nm) For long haul systems (7 links or more): Set gain on pre-amplifier. The gain on the pre-amplifier is supplied from the Network designer.

Step 10 Check each channel power by connecting a power meter to the demux output ports.

Step 11 Add an appropriate attenuator after the pre amplifier achieving required power level: For systems with 1-6 spans: Transponders -15 dBm ± 4 dB XFP with APD (i.e. TRX100032) -14 dBm ± 4 dB XFP with PIN diode (i.e. TRX100031) -9 dBm ± 4 dB For long haul systems (7 links or more): Transponders -15 dBm ± 2 dB XFP with APD (i.e. TRX100032) -14 dBm ± 2 dB XFP with PIN diode (i.e. TRX100031) -9 dBm ± 2 dB

Step 12 Set lossOfSignalThreshold of pre amplifier to [–1*(link loss in dB) – 10 ] dBm or -40 dBm, whichever is the highest. Assume a Link loss = 22 dB lossOfSignalThreshold = -22 -10 = -32 dBm (which is higher than -40 dBm)

Step 13 Connect the demux to the TPs.

Step 14 Read the received power levels on the LINE side for the TP via the GUI. The power levels should be as suggested in Step 11. Adjust pre amplifier gain if needed.





5.7 Transmission verifying

Step 1 For each 10 G transponder: Optimize receiver threshold. Can be done via GUI or via CLI. See Volume C (Operations & Maintenance Manual), CLI Configuration Guide. (Optimization is default ‘on’.)

Step 2 Connect an appropriate BER tester to the Client interface.

Step 3 Turn on loop back feature on the far end transponders via management system if the transponder is equipped with this feature.

Step 4 Verify error-free transmission.

Step 5 Document result.

Step 6 Verify the rest of the transponders in the same way.

Step 7 Turn off loopback feature on the far end.

Step 8 Set all TPs Lasermode to ALS (both far and near end).

Step 9 If needed, go back to the far end node and connect client equipment.

Step 10 Test automatic start-up of the system by deliberately switching one amplifier off/on or alternatively manually disconnecting a patch cord to/from an amplifier. Warning, do not do this carrying live traffic.

5.8 Installation of OADM

5.8.1 First visit of OADM

Step 1 Perform the steps described in 5.4 - Line amplifier installation (The connected booster/preamplifier in the OADM node is commissioned in the same way as a line amplifier)

Step 2 Install add/drop filters as designed facing towards the previous node. Do not connect transceivers yet.

Step 3 Install DCU as designed.

Step 4 Install add/drop filters as designed facing the next node.

Step 5 Perform the steps described in 5.4 - Line amplifier installation. The maximum loss between the pre and booster amplifier shall be 22, 23 or 26 dB (depending on choice of OADM booster) including add/drop filters, DCUs and fixed attenuator(s). The placement of the fixed attenuator is very important. Please read section 3.1.3. When installing OADM:s with ROADM the maximum loss between the pre and booster amplifier shall be 22, 23 or 26 dB (depending on choice of OADM booster) including both ROADM-cards, DCUs and fixed attenuator. See Figure 8 in section 3.1.4.




Step 6 Connect an OCM (or similar) to the booster amplifier facing the second terminal node. If OCM-card is used fill in the monitor port insertion loss in the GUI.

Step 7 Add a fixed attenuator between the transponder/transceiver and the OADM filter. The transponder/transceiver shall be facing towards the second terminal node. The in-line power levels can be estimated by reading the power levels out from OCM (or similar). The added channel power shall approximately be: [Express_channel_at_monitor_port] +[20 dB] -[amplifier gain] - [losses channel sees before the amplifier] If VOAs are used: Set VOA in constant attenuation. Set VOA at maximum attenuation. Connect VOA with TP and OADM filter. Add a 10 dB fixed attenuator between VOA and OADM. (not for ROADM:s) Fill in the VOA's descriptions field. E.g. "Channel #922".

Step 8 Power up the transponder and set lasermode ON (i.e. disable the ALS function) and connect this to the mux. Do not connect the receiver [Rxport] of the transponder to the demux. Compare the power levels using the OCM and adjust the added channel power levels by adjusting the attenuation. The power levels shall be within +1/-2 dB or between the highest and lowest channels transmitted from the first terminal node. If VOAs are used: Adjust VOA for the added channel. Compare the power levels using the OCM and adjust the added channel power level by adjusting the attenuation. The power levels shall be within +/- 0.5 dB of adjacent channels or between the highest and lowest channels transmitted from the first terminal node. If Optical control-loop is used: Set up the channel control for attached channel as described in ‘IC-Opt_Loop’. The “wanted power” level should be the power level found above (i.e. power level between adjacent channels). If ROADM:s are used: Set up the attenuation level of the added channel so that channel output power matches “poutmax/ch” applicable table in section 4.4. After installation, the “wanted attenuation” on the added channel should be between 5-10 dB. If it is not in this range, exchange the fixed attenuator so that this criterion is fulfilled.

Step 9 Repeat the previous two steps until all transceivers are connected.

Step 10 (Only for nodes with ROADM). For all express channels facing the second terminal node, locate the VOA:s in the correct direction on the ROADM-card. Set the “wanted attenuation” of each express channel so that channel output power from OADM booster matches “poutmax/ch” applicable table in section 4.4. The “wanted attenuation” on all channels should be in the range between 3 and 12 dB. Remember that lower channel numbers usually needs more attenuation than higher channel numbers.


Observe that you have not yet connected the transceiver transmitting back to the first terminal node. You have to revisit this node connecting these transceivers once you have commissioned the far end terminal node.

Go to section 5.4 if next site is a line amplifier, 5.5 if it is the second terminal node or 5.8.1 again if it is an OADM node.




5.8.2 Second visit of OADM

Step 1 Connect the OCM (or similar) to the pre amplifier monitor port facing the second terminal node.

Step 2 Make sure that all channels have approximately equal power levels.

Step 3 Measure power level out from the first drop filter.

Step 4 Add a fixed attenuator giving a power level of approximately – 15 dBm. If receivers with PIN-diodes are used aim for -9 dBm.

Step 5 Connect the receiver

Step 6 Verify bit error free transmission for the transponder. See section 5.7.

Step 7 Repeat the previous four steps until all transponders facing the second node are connected.

Step 8 Connect an OCM (or similar) to the booster amplifier facing the first terminal node.

Step 9 Add a fixed attenuator between the transceiver that shall be facing towards the first terminal node. The in-line power levels can be estimated by reading the power levels out from OCM (or similar). The added channel power shall approximately be: [Express_channel_at_monitor_port] +[20 dB] -[amplifier gain] - [losses channel sees before the amplifier] If VOAs are used: Set VOA in constant attenuation. Set VOA at maximum attenuation. Connect VOA with TP and OADM filter. Add a 10 dB fixed attenuator between VOA and OADM. (not for ROADM:s) Fill in the VOA's descriptions field. E.g. "Channel #922"

Step 10 Power up the transponder and set lasermode ON (i.e. disable the ALS function) and connect this to the mux. Do not connect the receiver [Rxport] of the transponder to the demux.

Step 11 Compare the power levels using the OCM and adjust the added channel power levels by adjusting the attenuation. The power levels shall be within +1/-2 dB or between the highest and lowest channels transmitted from the first terminal node. If VOAs are used: Adjust VOA for the added channel. Compare the power levels using the OCM and adjust the added channel power levels by adjusting the attenuation. The power levels shall be within +/- 0.5 dB of adjacent channels. If Optical control-loop is used: Set up the channel control for attached channel as described in ‘IC-Opt_Loop’. The “wanted power” level should be the power level found above (i.e. power level between adjacent channels). If ROADM:s are used: Set up the attenuation level of the added channel so that channel output power matches “poutmax/ch” applicable table in section 4.4. After installation, the “wanted attenuation” on the added channel should be between 5-10 dB. If it is not in this range, exchange the fixed attenuator so that this criterion is fulfilled.

Step 12 Connect the channels coming from the second terminal node by repeating step 1 to 7. Do not forget to attenuate the dropped channel.

Step 13 Connect client equipment.




Step 14 Set TPs Lasermode to ALS for the TPs facing the second terminal node. (both far and near end).

Step 15 Document power levels and used attenuators.

Step 16 (Only for nodes with ROADM). For all express channels facing the first terminal node, locate the VOA:s in the correct direction on the ROADM-card. Set the “wanted attenuation” of each express channel so that channel output power from OADM booster matches “poutmax/ch” applicable table in section 4.4. The “wanted attenuation” on all channels should be in the range between 3 and 12 dB. Remember that lower channel numbers usually needs more attenuation than higher channel numbers.


Go to section 5.6 if the next node is the first terminal node, 5.4 if it is a line amplifier or 5.8.2 again if it is an OADM node.




6 ADDING OR REMOVING CHANNELS IN SYSTEMS

6.1 Adding channels at terminal nodes

Step 1 Add the new channel using an attenuator between TP and mux equal to other channels having the same output level. To minimize the risk of traffic disturbance it is better to start using a too large attenuator than a too small.

Step 2 Confirm that the new channel power is within +/-1 dB of already installed channels by comparing power monitor port using an OSA (or similar). If not, use another attenuator. If VOAs are used: Set VOA in constant attenuation. Set VOA at maximum attenuation. Connect VOA with TP and MUX. Fill in the VOA's descriptions field. E.g. "Channel #922" (If you are using the 40-channel MDU, each VOA is already linked to the channel number) Adjust VOA so that input power level at the power amplifier corresponds to pinmax in section 4.4. Check on the OSA (or similar) that the output power spectra is flat. If VOA and OCM is used: (always for long-haul systems) Use the OCM to measure the relative power difference. Check that output power levels are correct according to “poutmax/ch” in section 4.4 (4.6 if it is a long-haul system). Use VOA to correct output power. If Optical control-loop is used: Set up the channel control as described in ‘IC-Opt_Loop’. The “wanted power” level should be equal to “poutmax/ch” described in section 4.4 (4.6 if it is a long-haul system).

Step 3 If VOA is not used, document the used attenuator.

Step 4 Connect patch cord from demux to TP.

Step 5 Make sure that the client interfaces are within their operating ranges. If not, use attenuators. Connect the new channel to the Client equipment if the TP has internal loop back feature. Otherwise, loop back client interfaces if you want to test the link before it carries live traffic.

Step 6 Repeat step 1-5 if more channels should be added.

Step 7 If you have nodes with ROADM-cards facing the second terminal node. For all new express channels, locate the VOA:s in the correct direction on the ROADM-card. Set the “wanted attenuation” of each express channel so that channel output power from OADM booster matches “poutmax/ch” applicable table in section 4.4. Repeat this procedure for all nodes with ROADM-cards facing the second terminal node. If no OCM-card is present at the OADM booster in each node. Set the “wanted attenuation” of each express channel equal to the attenuation of the closest express channel already present in the system.

Step 8 Go to the second TM node (far-end node).

Step 9 Connect patch cord from demux to TP.




Step 10 Read power levels via the GUI. The power levels should be: For systems with 1-6 spans: Transponders -15 dBm ± 4 dB XFP with APD (i.e. TRX100032) -14 dBm ± 4 dB XFP with PIN diode (i.e. TRX100031) -9 dBm ± 4 dB For long haul systems (7 links or more): Transponders -15 dBm ± 2 dB XFP with APD (i.e. TRX100032) -14 dBm ± 2 dB XFP with PIN diode (i.e. TRX100031) -9 dBm ± 2 dB Fine tune pre amplifier gain if needed (normally not needed)

Step 11 Do step 1-6 for all new channels in this second TM node.

Step 12 If you have nodes with ROADM-cards facing the first terminal node. For all new express channels, locate the VOA:s in the correct direction on the ROADM-card. Set the “wanted attenuation” of each express channel so that channel output power from OADM booster matches “poutmax/ch” applicable table in section 4.4. Repeat this procedure for all nodes with ROADM-cards facing the first terminal node. If no OCM-card is present at the OADM booster in each node. Set the “wanted attenuation” of each express channel equal to the attenuation of the closest express channel already present in the system.

Step 13 Optimize receiver threshold for all 10 Gb/s TPs at first TM and second TM node. Can be done via GUI or via CLI. See ”Volume C (Operations & Maintenance Manual), CLI Configuration Guide. (Optimization is default continuously)



Step 16 Connect client interfaces.

Step 17 Disable loop back feature on the far end node.

Step 18 Save the data using ENM GUI on both Terminal sites.

Step 19 If needed go back to the first node and connect client interfaces.




6.2 Adding channels at OADM nodes

To minimize the risk of traffic disturbance it is better to start using a too large attenuation than a too small.

Please note that the added power levels in OADM nodes shall be very low since you normally only have the add filter before the booster amplifier. To minimize the risk of traffic disturbance it is better to start using a too large attenuation than too small.

Step 1 Connect TP with a suitable attenuator; For systems without VOA:s: The in-line power levels can be estimated by reading the power levels out from OCM (or similar). The added channel power shall approximately be (at input of add-filter): [Express_channel_at_monitor_port] +[20 dB] -[amplifier gain] - [losses channel sees before the amplifier] (It is important not to add a too high channel power in systems carrying live traffic. The attenuator shall be in the order of 15-20 dB if a 10 Gb/s transceiver is used and 20-25 dB if a high power 2.5 Gb/s transceiver is used. Please see section 6 for upgrades of a system.) The power levels shall be within +1/-2 dB of closest channel measured at the OCM (or similar). If VOAs are used: Set VOA in constant attenuation. Set VOA at maximum attenuation. Connect VOA with TP and OADM filter. Add a 10 dB fixed attenuator between VOA and OADM. (not for ROADM:s) Fill in the VOA's descriptions field. E.g. "Channel #922" Adjust VOA for the added channel. Compare the power levels using the OCM and adjust the added channel power levels by adjusting the attenuation. The power levels shall be within +/- 0.5 dB of adjacent channels or between the highest and lowest channels transmitted from the first terminal node. If Optical control-loop is used: Set up the channel control for attached channel as described in ‘IC-Opt_Loop’. The “wanted power” level should be the power level found above (i.e. power level between adjacent channels). If ROADM:s are used: Set up the attenuation level of the added channel so that channel output power matches “poutmax/ch” applicable table in section 4.4. After installation, the “wanted attenuation” on the added channel should be between 5-10 dB. If it is not in this range, exchange the fixed attenuator so that this criterion is fulfilled.




Step 2 Measure the received channel. Make sure that the received channel is within the receiver operating range: For systems with 1-6 spans: Transponders -15 dBm ± 4 dB XFP with APD (i.e. TRX100032) -14 dBm ± 4 dB XFP with PIN diode (i.e. TRX100031) -9 dBm ± 4 dB For long haul systems (7 links or more): Transponders -15 dBm ± 2 dB XFP with APD (i.e. TRX100032) -14 dBm ± 2 dB XFP with PIN diode (i.e. TRX100031) -9 dBm ± 2 dB If not in range, use attenuators.

Step 3 Document the used attenuator.

Step 4 Optimize receiver threshold for all 10 Gb/s TPs at first TM and second TM node. Can be done via GUI or via CLI. See ”Volume C (Operations & Maintenance Manual), CLI Configuration Guide. (Optimization is default continuous.)



Step 7 Connect client interfaces.

Step 8 Document power levels and used attenuators


6.3 Removing channels

Step 1 Disconnect the channel that should be removed.

Step 2 Document the new configuration

Step 3 Save the data in the ENM GUI.




7 APPENDIX

Below are the complete power tables relating to section 4.4:

present #

Pinmax/ch

Pin max

Poutmax/ch

Pout max

1 -12,3 -12,3 10,7 10,72 -12,3 -9,3 10,7 13,73 -12,3 -7,5 10,7 15,54 -12,3 -6,3 10,7 16,7

OA17C


present #

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

1 -15,3 -15,3 7,7 7,7 -15,5 -15,5 10,5 10,5 -11,5 -11,5 10,5 10,52 -15,3 -12,3 7,7 10,7 -15,5 -12,5 10,5 13,5 -11,5 -8,5 10,5 13,53 -15,3 -10,6 7,7 12,4 -15,5 -10,8 10,5 15,2 -11,5 -6,8 10,5 15,24 -15,3 -9,3 7,7 13,7 -15,5 -9,5 10,5 16,5 -11,5 -5,5 10,5 16,55 -15,3 -8,3 7,7 14,7 -15,5 -8,5 10,5 17,5 -11,5 -4,5 10,5 17,56 -15,3 -7,5 7,7 15,5 -15,5 -7,7 10,5 18,3 -11,5 -3,7 10,5 18,37 -15,3 -6,9 7,7 16,1 -15,5 -7,1 10,5 18,9 -11,5 -3,1 10,5 18,98 -15,3 -6,3 7,7 16,7 -15,5 -6,5 10,5 19,5 -11,5 -2,5 10,5 19,5

OA20LGOA17C OA20C


present #

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

1 -18,3 -18,3 4,7 4,7 -18,5 -18,5 7,5 7,5 -14,5 -14,5 7,5 7,52 -18,3 -15,3 4,7 7,7 -18,5 -15,5 7,5 10,5 -14,5 -11,5 7,5 10,53 -18,3 -13,6 4,7 9,4 -18,5 -13,8 7,5 12,2 -14,5 -9,8 7,5 12,24 -18,3 -12,3 4,7 10,7 -18,5 -12,5 7,5 13,5 -14,5 -8,5 7,5 13,55 -18,3 -11,4 4,7 11,6 -18,5 -11,6 7,5 14,4 -14,5 -7,6 7,5 14,46 -18,3 -10,6 4,7 12,4 -18,5 -10,8 7,5 15,2 -14,5 -6,8 7,5 15,27 -18,3 -9,9 4,7 13,1 -18,5 -10,1 7,5 15,9 -14,5 -6,1 7,5 15,98 -18,3 -9,3 4,7 13,7 -18,5 -9,5 7,5 16,5 -14,5 -5,5 7,5 16,59 -18,3 -8,8 4,7 14,2 -18,5 -9,0 7,5 17,0 -14,5 -5,0 7,5 17,0

10 -18,3 -8,3 4,7 14,7 -18,5 -8,5 7,5 17,5 -14,5 -4,5 7,5 17,511 -18,3 -7,9 4,7 15,1 -18,5 -8,1 7,5 17,9 -14,5 -4,1 7,5 17,912 -18,3 -7,5 4,7 15,5 -18,5 -7,7 7,5 18,3 -14,5 -3,7 7,5 18,313 -18,3 -7,2 4,7 15,8 -18,5 -7,4 7,5 18,6 -14,5 -3,4 7,5 18,614 -18,3 -6,9 4,7 16,1 -18,5 -7,1 7,5 18,9 -14,5 -3,1 7,5 18,915 -18,3 -6,6 4,7 16,4 -18,5 -6,8 7,5 19,2 -14,5 -2,8 7,5 19,216 -18,3 -6,3 4,7 16,7 -18,5 -6,5 7,5 19,5 -14,5 -2,5 7,5 19,5

OA20LGOA17C OA20C





present #

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

1 -21,4 -21,4 1,6 1,6 -21,6 -21,6 4,4 4,4 -17,6 -17,6 4,4 4,42 -21,4 -18,3 1,6 4,7 -21,6 -18,5 4,4 7,5 -17,6 -14,5 4,4 7,53 -21,4 -16,6 1,6 6,4 -21,6 -16,8 4,4 9,2 -17,6 -12,8 4,4 9,24 -21,4 -15,3 1,6 7,7 -21,6 -15,5 4,4 10,5 -17,6 -11,5 4,4 10,55 -21,4 -14,4 1,6 8,6 -21,6 -14,6 4,4 11,4 -17,6 -10,6 4,4 11,46 -21,4 -13,6 1,6 9,4 -21,6 -13,8 4,4 12,2 -17,6 -9,8 4,4 12,27 -21,4 -12,9 1,6 10,1 -21,6 -13,1 4,4 12,9 -17,6 -9,1 4,4 12,98 -21,4 -12,3 1,6 10,7 -21,6 -12,5 4,4 13,5 -17,6 -8,5 4,4 13,59 -21,4 -11,8 1,6 11,2 -21,6 -12,0 4,4 14,0 -17,6 -8,0 4,4 14,0

10 -21,4 -11,4 1,6 11,6 -21,6 -11,6 4,4 14,4 -17,6 -7,6 4,4 14,411 -21,4 -10,9 1,6 12,1 -21,6 -11,1 4,4 14,9 -17,6 -7,1 4,4 14,912 -21,4 -10,6 1,6 12,4 -21,6 -10,8 4,4 15,2 -17,6 -6,8 4,4 15,213 -21,4 -10,2 1,6 12,8 -21,6 -10,4 4,4 15,6 -17,6 -6,4 4,4 15,614 -21,4 -9,9 1,6 13,1 -21,6 -10,1 4,4 15,9 -17,6 -6,1 4,4 15,915 -21,4 -9,6 1,6 13,4 -21,6 -9,8 4,4 16,2 -17,6 -5,8 4,4 16,216 -21,4 -9,3 1,6 13,7 -21,6 -9,5 4,4 16,5 -17,6 -5,5 4,4 16,517 -21,4 -9,0 1,6 14,0 -21,6 -9,2 4,4 16,8 -17,6 -5,2 4,4 16,818 -21,4 -8,8 1,6 14,2 -21,6 -9,0 4,4 17,0 -17,6 -5,0 4,4 17,019 -21,4 -8,6 1,6 14,4 -21,6 -8,8 4,4 17,2 -17,6 -4,8 4,4 17,220 -21,4 -8,3 1,6 14,7 -21,6 -8,5 4,4 17,5 -17,6 -4,5 4,4 17,521 -21,4 -8,1 1,6 14,9 -21,6 -8,3 4,4 17,7 -17,6 -4,3 4,4 17,722 -21,4 -7,9 1,6 15,1 -21,6 -8,1 4,4 17,9 -17,6 -4,1 4,4 17,923 -21,4 -7,7 1,6 15,3 -21,6 -7,9 4,4 18,1 -17,6 -3,9 4,4 18,124 -21,4 -7,5 1,6 15,5 -21,6 -7,7 4,4 18,3 -17,6 -3,7 4,4 18,325 -21,4 -7,4 1,6 15,6 -21,6 -7,6 4,4 18,4 -17,6 -3,6 4,4 18,426 -21,4 -7,2 1,6 15,8 -21,6 -7,4 4,4 18,6 -17,6 -3,4 4,4 18,627 -21,4 -7,0 1,6 16,0 -21,6 -7,2 4,4 18,8 -17,6 -3,2 4,4 18,828 -21,4 -6,9 1,6 16,1 -21,6 -7,1 4,4 18,9 -17,6 -3,1 4,4 18,929 -21,4 -6,7 1,6 16,3 -21,6 -6,9 4,4 19,1 -17,6 -2,9 4,4 19,130 -21,4 -6,6 1,6 16,4 -21,6 -6,8 4,4 19,2 -17,6 -2,8 4,4 19,231 -21,4 -6,4 1,6 16,6 -21,6 -6,6 4,4 19,4 -17,6 -2,6 4,4 19,432 -21,4 -6,3 1,6 16,7 -21,6 -6,5 4,4 19,5 -17,6 -2,5 4,4 19,5

OA20LGOA17C OA20C





present #

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

1 -22,3 -22,3 0,7 0,7 -22,5 -22,5 3,5 3,5 -18,5 -18,5 3,5 3,52 -22,3 -19,3 0,7 3,7 -22,5 -19,5 3,5 6,5 -18,5 -15,5 3,5 6,53 -22,3 -17,5 0,7 5,5 -22,5 -17,7 3,5 8,3 -18,5 -13,7 3,5 8,34 -22,3 -16,3 0,7 6,7 -22,5 -16,5 3,5 9,5 -18,5 -12,5 3,5 9,55 -22,3 -15,3 0,7 7,7 -22,5 -15,5 3,5 10,5 -18,5 -11,5 3,5 10,56 -22,3 -14,5 0,7 8,5 -22,5 -14,7 3,5 11,3 -18,5 -10,7 3,5 11,37 -22,3 -13,9 0,7 9,1 -22,5 -14,1 3,5 11,9 -18,5 -10,1 3,5 11,98 -22,3 -13,3 0,7 9,7 -22,5 -13,5 3,5 12,5 -18,5 -9,5 3,5 12,59 -22,3 -12,8 0,7 10,2 -22,5 -13,0 3,5 13,0 -18,5 -9,0 3,5 13,0

10 -22,3 -12,3 0,7 10,7 -22,5 -12,5 3,5 13,5 -18,5 -8,5 3,5 13,511 -22,3 -11,9 0,7 11,1 -22,5 -12,1 3,5 13,9 -18,5 -8,1 3,5 13,912 -22,3 -11,5 0,7 11,5 -22,5 -11,7 3,5 14,3 -18,5 -7,7 3,5 14,313 -22,3 -11,2 0,7 11,8 -22,5 -11,4 3,5 14,6 -18,5 -7,4 3,5 14,614 -22,3 -10,9 0,7 12,1 -22,5 -11,1 3,5 14,9 -18,5 -7,1 3,5 14,915 -22,3 -10,6 0,7 12,4 -22,5 -10,8 3,5 15,2 -18,5 -6,8 3,5 15,216 -22,3 -10,3 0,7 12,7 -22,5 -10,5 3,5 15,5 -18,5 -6,5 3,5 15,517 -22,3 -10,0 0,7 13,0 -22,5 -10,2 3,5 15,8 -18,5 -6,2 3,5 15,818 -22,3 -9,8 0,7 13,2 -22,5 -10,0 3,5 16,0 -18,5 -6,0 3,5 16,019 -22,3 -9,5 0,7 13,5 -22,5 -9,7 3,5 16,3 -18,5 -5,7 3,5 16,320 -22,3 -9,3 0,7 13,7 -22,5 -9,5 3,5 16,5 -18,5 -5,5 3,5 16,521 -22,3 -9,1 0,7 13,9 -22,5 -9,3 3,5 16,7 -18,5 -5,3 3,5 16,722 -22,3 -8,9 0,7 14,1 -22,5 -9,1 3,5 16,9 -18,5 -5,1 3,5 16,923 -22,3 -8,7 0,7 14,3 -22,5 -8,9 3,5 17,1 -18,5 -4,9 3,5 17,124 -22,3 -8,5 0,7 14,5 -22,5 -8,7 3,5 17,3 -18,5 -4,7 3,5 17,325 -22,3 -8,3 0,7 14,7 -22,5 -8,5 3,5 17,5 -18,5 -4,5 3,5 17,526 -22,3 -8,2 0,7 14,8 -22,5 -8,4 3,5 17,6 -18,5 -4,4 3,5 17,627 -22,3 -8,0 0,7 15,0 -22,5 -8,2 3,5 17,8 -18,5 -4,2 3,5 17,828 -22,3 -7,8 0,7 15,2 -22,5 -8,0 3,5 18,0 -18,5 -4,0 3,5 18,029 -22,3 -7,7 0,7 15,3 -22,5 -7,9 3,5 18,1 -18,5 -3,9 3,5 18,130 -22,3 -7,5 0,7 15,5 -22,5 -7,7 3,5 18,3 -18,5 -3,7 3,5 18,331 -22,3 -7,4 0,7 15,6 -22,5 -7,6 3,5 18,4 -18,5 -3,6 3,5 18,432 -22,3 -7,3 0,7 15,7 -22,5 -7,5 3,5 18,5 -18,5 -3,5 3,5 18,533 -22,3 -7,1 0,7 15,9 -22,5 -7,3 3,5 18,7 -18,5 -3,3 3,5 18,734 -22,3 -7,0 0,7 16,0 -22,5 -7,2 3,5 18,8 -18,5 -3,2 3,5 18,835 -22,3 -6,9 0,7 16,1 -22,5 -7,1 3,5 18,9 -18,5 -3,1 3,5 18,936 -22,3 -6,8 0,7 16,2 -22,5 -7,0 3,5 19,0 -18,5 -3,0 3,5 19,037 -22,3 -6,6 0,7 16,4 -22,5 -6,8 3,5 19,2 -18,5 -2,8 3,5 19,238 -22,3 -6,5 0,7 16,5 -22,5 -6,7 3,5 19,3 -18,5 -2,7 3,5 19,339 -22,3 -6,4 0,7 16,6 -22,5 -6,6 3,5 19,4 -18,5 -2,6 3,5 19,440 -22,3 -6,3 0,7 16,7 -22,5 -6,5 3,5 19,5 -18,5 -2,5 3,5 19,5

OA17C OA20C OA20LG





present #

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

1 -25,3 -25,3 -2,3 -2,3 -25,5 -25,5 0,5 0,5 -21,5 -21,5 0,5 0,52 -25,3 -22,3 -2,3 0,7 -25,5 -22,5 0,5 3,5 -21,5 -18,5 0,5 3,53 -25,3 -20,6 -2,3 2,4 -25,5 -20,8 0,5 5,2 -21,5 -16,8 0,5 5,24 -25,3 -19,3 -2,3 3,7 -25,5 -19,5 0,5 6,5 -21,5 -15,5 0,5 6,55 -25,3 -18,3 -2,3 4,7 -25,5 -18,5 0,5 7,5 -21,5 -14,5 0,5 7,56 -25,3 -17,5 -2,3 5,5 -25,5 -17,7 0,5 8,3 -21,5 -13,7 0,5 8,37 -25,3 -16,9 -2,3 6,1 -25,5 -17,1 0,5 8,9 -21,5 -13,1 0,5 8,98 -25,3 -16,3 -2,3 6,7 -25,5 -16,5 0,5 9,5 -21,5 -12,5 0,5 9,59 -25,3 -15,8 -2,3 7,2 -25,5 -16,0 0,5 10,0 -21,5 -12,0 0,5 10,0

10 -25,3 -15,3 -2,3 7,7 -25,5 -15,5 0,5 10,5 -21,5 -11,5 0,5 10,511 -25,3 -14,9 -2,3 8,1 -25,5 -15,1 0,5 10,9 -21,5 -11,1 0,5 10,912 -25,3 -14,5 -2,3 8,5 -25,5 -14,7 0,5 11,3 -21,5 -10,7 0,5 11,313 -25,3 -14,2 -2,3 8,8 -25,5 -14,4 0,5 11,6 -21,5 -10,4 0,5 11,614 -25,3 -13,9 -2,3 9,1 -25,5 -14,1 0,5 11,9 -21,5 -10,1 0,5 11,915 -25,3 -13,6 -2,3 9,4 -25,5 -13,8 0,5 12,2 -21,5 -9,8 0,5 12,216 -25,3 -13,3 -2,3 9,7 -25,5 -13,5 0,5 12,5 -21,5 -9,5 0,5 12,517 -25,3 -13,0 -2,3 10,0 -25,5 -13,2 0,5 12,8 -21,5 -9,2 0,5 12,818 -25,3 -12,8 -2,3 10,2 -25,5 -13,0 0,5 13,0 -21,5 -9,0 0,5 13,019 -25,3 -12,5 -2,3 10,5 -25,5 -12,7 0,5 13,3 -21,5 -8,7 0,5 13,320 -25,3 -12,3 -2,3 10,7 -25,5 -12,5 0,5 13,5 -21,5 -8,5 0,5 13,521 -25,3 -12,1 -2,3 10,9 -25,5 -12,3 0,5 13,7 -21,5 -8,3 0,5 13,722 -25,3 -11,9 -2,3 11,1 -25,5 -12,1 0,5 13,9 -21,5 -8,1 0,5 13,923 -25,3 -11,7 -2,3 11,3 -25,5 -11,9 0,5 14,1 -21,5 -7,9 0,5 14,124 -25,3 -11,5 -2,3 11,5 -25,5 -11,7 0,5 14,3 -21,5 -7,7 0,5 14,325 -25,3 -11,4 -2,3 11,6 -25,5 -11,6 0,5 14,4 -21,5 -7,6 0,5 14,426 -25,3 -11,2 -2,3 11,8 -25,5 -11,4 0,5 14,6 -21,5 -7,4 0,5 14,627 -25,3 -11,0 -2,3 12,0 -25,5 -11,2 0,5 14,8 -21,5 -7,2 0,5 14,828 -25,3 -10,9 -2,3 12,1 -25,5 -11,1 0,5 14,9 -21,5 -7,1 0,5 14,929 -25,3 -10,7 -2,3 12,3 -25,5 -10,9 0,5 15,1 -21,5 -6,9 0,5 15,130 -25,3 -10,6 -2,3 12,4 -25,5 -10,8 0,5 15,2 -21,5 -6,8 0,5 15,231 -25,3 -10,4 -2,3 12,6 -25,5 -10,6 0,5 15,4 -21,5 -6,6 0,5 15,432 -25,3 -10,3 -2,3 12,7 -25,5 -10,5 0,5 15,5 -21,5 -6,5 0,5 15,533 -25,3 -10,1 -2,3 12,9 -25,5 -10,3 0,5 15,7 -21,5 -6,3 0,5 15,734 -25,3 -10,0 -2,3 13,0 -25,5 -10,2 0,5 15,8 -21,5 -6,2 0,5 15,835 -25,3 -9,9 -2,3 13,1 -25,5 -10,1 0,5 15,9 -21,5 -6,1 0,5 15,936 -25,3 -9,8 -2,3 13,2 -25,5 -10,0 0,5 16,0 -21,5 -6,0 0,5 16,037 -25,3 -9,6 -2,3 13,4 -25,5 -9,8 0,5 16,2 -21,5 -5,8 0,5 16,238 -25,3 -9,5 -2,3 13,5 -25,5 -9,7 0,5 16,3 -21,5 -5,7 0,5 16,339 -25,3 -9,4 -2,3 13,6 -25,5 -9,6 0,5 16,4 -21,5 -5,6 0,5 16,440 -25,3 -9,3 -2,3 13,7 -25,5 -9,5 0,5 16,5 -21,5 -5,5 0,5 16,541 -25,3 -9,2 -2,3 13,8 -25,5 -9,4 0,5 16,6 -21,5 -5,4 0,5 16,642 -25,3 -9,1 -2,3 13,9 -25,5 -9,3 0,5 16,7 -21,5 -5,3 0,5 16,743 -25,3 -9,0 -2,3 14,0 -25,5 -9,2 0,5 16,8 -21,5 -5,2 0,5 16,844 -25,3 -8,9 -2,3 14,1 -25,5 -9,1 0,5 16,9 -21,5 -5,1 0,5 16,945 -25,3 -8,8 -2,3 14,2 -25,5 -9,0 0,5 17,0 -21,5 -5,0 0,5 17,046 -25,3 -8,7 -2,3 14,3 -25,5 -8,9 0,5 17,1 -21,5 -4,9 0,5 17,147 -25,3 -8,6 -2,3 14,4 -25,5 -8,8 0,5 17,2 -21,5 -4,8 0,5 17,248 -25,3 -8,5 -2,3 14,5 -25,5 -8,7 0,5 17,3 -21,5 -4,7 0,5 17,349 -25,3 -8,4 -2,3 14,6 -25,5 -8,6 0,5 17,4 -21,5 -4,6 0,5 17,450 -25,3 -8,3 -2,3 14,7 -25,5 -8,5 0,5 17,5 -21,5 -4,5 0,5 17,5

OA17C OA20C OA20LG

Table 58. Power levels for amplifiers in systems designed for max#= 80 channels, channels 1 to 50.




present #

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

Pinmax/ch

Pin max

Poutmax/ch

Pout max

51 -25,3 -8,3 -2,3 14,7 -25,5 -8,5 0,5 17,5 -21,5 -4,5 0,5 17,552 -25,3 -8,2 -2,3 14,8 -25,5 -8,4 0,5 17,6 -21,5 -4,4 0,5 17,653 -25,3 -8,1 -2,3 14,9 -25,5 -8,3 0,5 17,7 -21,5 -4,3 0,5 17,754 -25,3 -8,0 -2,3 15,0 -25,5 -8,2 0,5 17,8 -21,5 -4,2 0,5 17,855 -25,3 -7,9 -2,3 15,1 -25,5 -8,1 0,5 17,9 -21,5 -4,1 0,5 17,956 -25,3 -7,8 -2,3 15,2 -25,5 -8,0 0,5 18,0 -21,5 -4,0 0,5 18,057 -25,3 -7,8 -2,3 15,2 -25,5 -8,0 0,5 18,0 -21,5 -4,0 0,5 18,058 -25,3 -7,7 -2,3 15,3 -25,5 -7,9 0,5 18,1 -21,5 -3,9 0,5 18,159 -25,3 -7,6 -2,3 15,4 -25,5 -7,8 0,5 18,2 -21,5 -3,8 0,5 18,260 -25,3 -7,5 -2,3 15,5 -25,5 -7,7 0,5 18,3 -21,5 -3,7 0,5 18,361 -25,3 -7,5 -2,3 15,5 -25,5 -7,7 0,5 18,3 -21,5 -3,7 0,5 18,362 -25,3 -7,4 -2,3 15,6 -25,5 -7,6 0,5 18,4 -21,5 -3,6 0,5 18,463 -25,3 -7,3 -2,3 15,7 -25,5 -7,5 0,5 18,5 -21,5 -3,5 0,5 18,564 -25,3 -7,3 -2,3 15,7 -25,5 -7,5 0,5 18,5 -21,5 -3,5 0,5 18,565 -25,3 -7,2 -2,3 15,8 -25,5 -7,4 0,5 18,6 -21,5 -3,4 0,5 18,666 -25,3 -7,1 -2,3 15,9 -25,5 -7,3 0,5 18,7 -21,5 -3,3 0,5 18,767 -25,3 -7,1 -2,3 15,9 -25,5 -7,3 0,5 18,7 -21,5 -3,3 0,5 18,768 -25,3 -7,0 -2,3 16,0 -25,5 -7,2 0,5 18,8 -21,5 -3,2 0,5 18,869 -25,3 -6,9 -2,3 16,1 -25,5 -7,1 0,5 18,9 -21,5 -3,1 0,5 18,970 -25,3 -6,9 -2,3 16,1 -25,5 -7,1 0,5 18,9 -21,5 -3,1 0,5 18,971 -25,3 -6,8 -2,3 16,2 -25,5 -7,0 0,5 19,0 -21,5 -3,0 0,5 19,072 -25,3 -6,8 -2,3 16,2 -25,5 -7,0 0,5 19,0 -21,5 -3,0 0,5 19,073 -25,3 -6,7 -2,3 16,3 -25,5 -6,9 0,5 19,1 -21,5 -2,9 0,5 19,174 -25,3 -6,6 -2,3 16,4 -25,5 -6,8 0,5 19,2 -21,5 -2,8 0,5 19,275 -25,3 -6,6 -2,3 16,4 -25,5 -6,8 0,5 19,2 -21,5 -2,8 0,5 19,276 -25,3 -6,5 -2,3 16,5 -25,5 -6,7 0,5 19,3 -21,5 -2,7 0,5 19,377 -25,3 -6,5 -2,3 16,5 -25,5 -6,7 0,5 19,3 -21,5 -2,7 0,5 19,378 -25,3 -6,4 -2,3 16,6 -25,5 -6,6 0,5 19,4 -21,5 -2,6 0,5 19,479 -25,3 -6,4 -2,3 16,6 -25,5 -6,6 0,5 19,4 -21,5 -2,6 0,5 19,480 -25,3 -6,3 -2,3 16,7 -25,5 -6,5 0,5 19,5 -21,5 -2,5 0,5 19,5

OA17C OA20C OA20LG

Table 59. Power levels for amplifiers in systems designed for max#= 80 channels, channels 50 to 80.




7.1 OA26C power tables

present # Pinmax/ch Pin max Poutmax/ch Pout max

1 4,4 4,4 10,6 10,62 4,4 7,5 10,6 13,73 4,4 9,2 10,6 15,44 4,4 10,5 10,6 16,75 4,4 11,4 10,6 17,66 4,4 12,2 10,6 18,47 4,4 12,9 10,6 19,18 4,4 13,5 10,6 19,79 4,4 14,0 10,6 20,210 4,4 14,4 10,6 20,611 4,4 14,9 10,6 21,112 4,4 15,2 10,6 21,413 4,4 15,6 10,6 21,814 4,4 15,9 10,6 22,115 4,4 16,2 10,6 22,416 4,4 16,5 10,6 22,717 4,4 16,8 10,6 23,018 4,4 17,0 10,6 23,219 4,4 17,2 10,6 23,420 4,4 17,5 10,6 23,721 4,4 17,7 10,6 23,922 4,4 17,9 10,6 24,123 4,4 18,1 10,6 24,324 4,4 18,3 10,6 24,525 4,4 18,4 10,6 24,626 4,4 18,6 10,6 24,827 4,4 18,8 10,6 25,028 4,4 18,9 10,6 25,129 4,4 19,1 10,6 25,330 4,4 19,2 10,6 25,431 4,4 19,4 10,6 25,632 4,4 19,5 10,6 25,7

OA26C

Table 60. Power levels for OA26C in systems designed for max#= 32 channels





1 3,5 3,5 9,7 9,72 3,5 6,5 9,7 12,73 3,5 8,3 9,7 14,54 3,5 9,5 9,7 15,75 3,5 10,5 9,7 16,76 3,5 11,3 9,7 17,57 3,5 11,9 9,7 18,18 3,5 12,5 9,7 18,79 3,5 13,0 9,7 19,210 3,5 13,5 9,7 19,711 3,5 13,9 9,7 20,112 3,5 14,3 9,7 20,513 3,5 14,6 9,7 20,814 3,5 14,9 9,7 21,115 3,5 15,2 9,7 21,416 3,5 15,5 9,7 21,717 3,5 15,8 9,7 22,018 3,5 16,0 9,7 22,219 3,5 16,3 9,7 22,520 3,5 16,5 9,7 22,721 3,5 16,7 9,7 22,922 3,5 16,9 9,7 23,123 3,5 17,1 9,7 23,324 3,5 17,3 9,7 23,525 3,5 17,5 9,7 23,726 3,5 17,6 9,7 23,827 3,5 17,8 9,7 24,028 3,5 18,0 9,7 24,229 3,5 18,1 9,7 24,330 3,5 18,3 9,7 24,531 3,5 18,4 9,7 24,632 3,5 18,5 9,7 24,733 3,5 18,7 9,7 24,934 3,5 18,8 9,7 25,035 3,5 18,9 9,7 25,136 3,5 19,0 9,7 25,237 3,5 19,2 9,7 25,438 3,5 19,3 9,7 25,539 3,5 19,4 9,7 25,640 3,5 19,5 9,7 25,7

OA26C






1 0,5 0,5 6,7 6,72 0,5 3,5 6,7 9,73 0,5 5,2 6,7 11,44 0,5 6,5 6,7 12,75 0,5 7,5 6,7 13,76 0,5 8,3 6,7 14,57 0,5 8,9 6,7 15,18 0,5 9,5 6,7 15,79 0,5 10,0 6,7 16,210 0,5 10,5 6,7 16,711 0,5 10,9 6,7 17,112 0,5 11,3 6,7 17,513 0,5 11,6 6,7 17,814 0,5 11,9 6,7 18,115 0,5 12,2 6,7 18,416 0,5 12,5 6,7 18,717 0,5 12,8 6,7 19,018 0,5 13,0 6,7 19,219 0,5 13,3 6,7 19,520 0,5 13,5 6,7 19,721 0,5 13,7 6,7 19,922 0,5 13,9 6,7 20,123 0,5 14,1 6,7 20,324 0,5 14,3 6,7 20,525 0,5 14,4 6,7 20,626 0,5 14,6 6,7 20,827 0,5 14,8 6,7 21,028 0,5 14,9 6,7 21,129 0,5 15,1 6,7 21,330 0,5 15,2 6,7 21,431 0,5 15,4 6,7 21,632 0,5 15,5 6,7 21,733 0,5 15,7 6,7 21,934 0,5 15,8 6,7 22,035 0,5 15,9 6,7 22,136 0,5 16,0 6,7 22,237 0,5 16,2 6,7 22,438 0,5 16,3 6,7 22,539 0,5 16,4 6,7 22,640 0,5 16,5 6,7 22,7

OA26C


41 0,5 16,6 6,7 22,842 0,5 16,7 6,7 22,943 0,5 16,8 6,7 23,044 0,5 16,9 6,7 23,145 0,5 17,0 6,7 23,246 0,5 17,1 6,7 23,347 0,5 17,2 6,7 23,448 0,5 17,3 6,7 23,549 0,5 17,4 6,7 23,650 0,5 17,5 6,7 23,751 0,5 17,5 6,7 23,752 0,5 17,6 6,7 23,853 0,5 17,7 6,7 23,954 0,5 17,8 6,7 24,055 0,5 17,9 6,7 24,156 0,5 18,0 6,7 24,257 0,5 18,0 6,7 24,258 0,5 18,1 6,7 24,359 0,5 18,2 6,7 24,460 0,5 18,3 6,7 24,561 0,5 18,3 6,7 24,562 0,5 18,4 6,7 24,663 0,5 18,5 6,7 24,764 0,5 18,5 6,7 24,765 0,5 18,6 6,7 24,866 0,5 18,7 6,7 24,967 0,5 18,7 6,7 24,968 0,5 18,8 6,7 25,069 0,5 18,9 6,7 25,170 0,5 18,9 6,7 25,1

71 0,5 19,0 6,7 25,272 0,5 19,0 6,7 25,273 0,5 19,1 6,7 25,374 0,5 19,2 6,7 25,475 0,5 19,2 6,7 25,476 0,5 19,3 6,7 25,577 0,5 19,3 6,7 25,578 0,5 19,4 6,7 25,679 0,5 19,4 6,7 25,680 0,5 19,5 6,7 25,7

OA26C


Date post:	20-Mar-2018
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