OTA105103 OptiX OSN 3500 Hardware System Overview ISSUE1.0

7/30/2019 OTA105103 OptiX OSN 3500 Hardware System Overview ISSUE1.0

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Optical Network Curriculum

Development Section

ISSUE

OTA105103 OptiX OSN 3500

Hardware System Overview

1.0


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2Confidential Information of Huawei.

No Spreading without Permission. Security Level: Internal

Objectives

Grasp the structure of the

equipment

Grasp the main function of

every mentioned board.

Grasp the signal flow and the

alarms

Upon completion of this course,you will be able to:


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Equipment OverviewOptiX OSN 9500

Backbone

OptiX OSN 3500 OptiX 10G

OptiX OSN 3500

OptiX OSN 2500

OptiX OSN 1500

OptiX OSN 2500OptiX OSN 1500

Aggregatio

Access

GSM/CDMA/

WCDMAEthernet DDNPSTN ATM. . .

Position of the OptiX OSN 3500 in transport network


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Rack

Can be installed on ETSI or 19

Inch Cabinet

Dimension of rack:

1. 2000mm(H)X600mm(W)X300mm(D)

(60 Kg) can contain 1 sub-rack

2. 2200mm(H)X600mm(W)X300mm(D)

(70.4 Kg) can contain 2 sub-racks

3. 2600mm(H)X600mm(W)X300mm(D)

(80 Kg) can contain 2 sub-racks


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Power Box

NEG2(-)

INPUT

RTN2(+)RTN1(+) NEG1(-)

SW3/20ASW1/20A SW2/20A SW4/20ASW1/20A SW3/20ASW2/20A SW4/20A

1. Grounding STUD 2. PGND 3. RTN1(+)4. RTN2(+) 5. NEG1(-) 6. NEG2(-)7. Input cable terminal 8. Left output cable terminal 9.Right output cable terminal


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Rack

Indicators on the cabinet

Indicator DescriptionStatus

On Off

Red

indicator

Critical

alarm

Critical alarm on one Sub-

rack, which is accompaniedby an audible alarm.

No Critical alarm on

any Sub-rack.

Yellow

indicator

Major

alarm

Major alarm on one Sub-rack. No Major alarm on

any Sub-rack.

Orange

indicator

Minor

alarm

Minor alarm on one Sub-rack. No Minor alarm on

any Sub-rack.Green

indicator

Power The power supply is normal

(-38.4 ~ -57.6V or

-48.0V ~ -72.0 ).

Power supply is

interrupted or

abnormal.


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8Confidential Information of Huawei.No Spreading without Permission. Security Level: Internal

Contents

Rack and Related Parts

Sub-rack

Circuit Boards

Auxiliary Parts


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Sub-rack

Service typeMaximum

access ports

STM-64 4

STM-16 8

STM-4 46

STM-1 optical 92

STM-1 electrical 78

E4 service 32

E3/DS3 service 48

E1/T1 service 504

FE service 92

GE service 30


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11/100


Sub-rack

Fiber Routing

S

L

O

T

1

S

L

O

T

2

S

L

O

T

3

S

L

O

T

4

S

L

O

T

5

S

L

O

T

6

S

L

O

T

7

S

L

O

T

8

S

L

O

T

9

S

L

O

T

1

0

S

L

O

T

1

1

S

L

O

T

1

2

S

L

O

T

1

3

S

L

O

T

1

4

S

L

O

T

1

5

S

L

O

T

1

6

S

L

O

T

1

7

S

L

O

T

1

8

S

L

OT

2

7

S

L

OT

1

9

S

L

OT

2

0

S

L

OT

2

1

S

L

OT

2

2

S

L

OT

2

3

S

L

OT

2

4

S

L

OT

2

5

S

L

OT

2

6

S

L

OT

3

7

S

L

OT

2

9

S

L

OT

3

0

S

L

OT

3

1

S

L

OT

3

2

S

L

OT

3

3

S

L

OT

3

4

S

L

OT

3

6

S

L

OT

3

5

S

L

OT

2

8

FAN FAN FAN

P

I

U

P

I

U

A

U

X

S

C

C

S

C

C

X

C

S

X

C

S

Slot Assignment& Relation

2 19, 203 21, 224 23, 245 25, 26

13 29, 3014 31, 3215 33, 3416 35, 36


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Sub-rack

Sub-rack slot access capacity

S

LO

T

1

S

LO

T

2

S

LO

T

3

S

LO

T

4

S

LO

T

5

S

LO

T

6

S

LO

T

7

S

LO

T

8

S

LO

T

9

S

LO

T

1

0

S

LO

T

1

1

S

LO

T

1

2

S

LO

T

1

3

S

LO

T

1

4

S

LO

T

1

5

S

LO

T

1

6

S

LO

T

1

7

S

LO

T

1

8

S

CC

S

CCG

XC

S

GXC

S

2.5

Gb

it/s

622Mbit/s

2.5

Gb

it/s

10Gb

it/s

10Gb

it/s

622Mbit/s

622Mbit/s

622Mbit/s

622Mbit/s

622Mbit/s

622Mbit/s

622Mbit/s

Fiber Routing

FAN FAN FAN

2.5

Gb

it/s

2.5

Gb

it/s

Configuration 1

40 G(35G +5G)

224X224 VC-4

96X96 VC-32016X2016 VC-12


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Sub-rack

Sub-rack slot access capacity

S

LO

T

1

S

LO

T

2

S

LO

T

3

S

LO

T

4

S

LO

T

5

S

LO

T

6

S

LO

T

7

S

LO

T

8

S

LO

T

9

S

LO

T

1

0

S

LO

T

1

1

S

LO

T

1

2

S

LO

T

1

3

S

LO

T

1

4

S

LO

T

1

5

S

LO

T

1

6

S

17

S

LO

T

1

8

SC

C

S

C

C

or

EXCS

EXCS

2.5

Gbi

t/s

2.5

Gbi

t/s

2.5

Gbi

t/s

10Gbit/s

10Gbit/s

1.2

5Gb

it/s

1.2

5Gb

it/s

1.2

5Gb

it/s

1.2

5Gb

it/s

1.2

5Gb

it/s

1.2

5Gb

it/s

2.5

Gbi

t/s

10Gbit/s

10Gbit/s

1.2

5Gb

it/s

Fiber Routing

FAN FAN FAN

Configuration 2

60 G (80 G)(60G + 5G)

376X376 VC-4

96X96 VC-3

2016X2016 VC-12


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Equipment Protection

Items protected Protection scheme

E1/T1 processing board 1:N (N 8) TPS

E3/DS3 processing board 1:N (N 3) TPS (2 Groups)

E4/STM-1 processing board 1:N (N 3) TPS (2 Groups)

Cross-connect and timing unit 1+1 hot backup protection

SCC unit 1+1 hot backup protection

-48V power interface board 1+1 hot backup protection

3.3V board power supply1:N centralized hot backup

protection

* The OptiX OSN 3500 can support three TPS groups of

different types of services at the one time.


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15

Confidential Information of Huawei.


System Overview

East

SDH interfaceunit (STM-1/4/

16/64)

SDH interfaceunit (STM-1/4/

16/64)

SDH cross-connect matrix andsynchronous timing unit (higher-order/

lower-order: 40G/5G and 60G/5G)

SCC unitand

overhead

processingunit

PDH

interfaceunit (E1/

T1/E3/T3/E4)

Ethernet

interfaceunit (10/

100/1000M)

Auxiliary

interfaceunit

West


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System Overview

Cross-connect Unit

(High-order 376X376VC-4)

(Low-order 2016*2016 VC-12)

IU

IU

IU

IU

IU

IU

IU

IU

IU

IU

IU

IU

Timing

Unit

Auxiliary

interface unitSCC andOHP unit

Interface Unit Interface Unit

Managementinterface

Auxiliaryinterface

Externalsychronization

interface


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Contents


Sub-rack

Circuit Boards

Auxiliary Parts


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Board

Boards can be classified as:

Units

1. PDH 4. Cross Connect

2. SDH 5. SCC

3. Ethernet


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1. Processing board(for example: PQ1)

2. Interface board(for example: D75S)

3. Optical interface board(for example:SL16)

4. Optical interface board 5. Board of other types 6. Front panel

7. E1/T1 interface board 8. Optical interface

Appearance of boards


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PDH Unit

Boards Processing Functions Interface

PQM 63 X E1/T1 2 X D75S, 2 X D12B, 2 X D12S

PQ1 63 X E1 2 X D75S, 2 X D12B, 2 X D12S

PL3 3 X E3 1 X C34S

PD3 6 X E3 1 X D34S

SPQ4 4 X E4/STM-1 1 X MU04

TSB8 8 Interface Switching & Bridging Board

TSB4 4 Interface Switching & Bridging Board


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PDH Access Unit

Principle Diagram and Signal Flow

Alarms and Performance Events Indicators

Relationship with Other Boards

Functions, Features and Applications

Course Contents


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Applications

Supports 63 both E1 and T1 signals

Provides 120 balanced E1interface and 100 balanced T1interface.

PQM

PQ1

Supports 63 E1 signals

Provides 75 unbalanced interfaceand 120 balanced interface.


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PDH Access Unit

Processing Interface

Slot Purpose Slot

1 Protection NN

2

Working

19, 20

3 21, 22

4 23, 24

5 25, 26

13 29,30

14 31, 32

15 33, 34

16 35, 36

Boards Slot Position

Processing: PQ1

Interface: D12S

D12B

D75S(DB44)

Processing: PQMInterface: D12S

D12B(DB44)


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Functions

Path Protection (PP)Sub-Network Connection Protection (SNCP)


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Functions

Maintenance Function(from NMS)

Tributary software loopback

Online pseudo-random code check function


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Major alarmsT- ALOS:No E1 signal received

Reasons:

Fault on E1 interface boardFault on the E1 Cable

Fault on switch system

TU-AIS:Reasons:

1. Incorrect cross-

connect configuration2. Fiber broken

TU-LOP:Reason:

Incorrect service configuration

Alarms


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LP-RDI:Remote defect indication

Reasons:

Alarms such as TU-AIS andTU-LOP are detected by the

remote terminal

LP-SLM , LP-TIM:Reasons:V5 or J2 mismatch

Minor alarms

LP-REI:

Remote error indicationReasons:

Bit errors are detected by

the remote terminal

Alarms


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Indicators

Indicator Color and status Description

Board

hardware

indicator-

STAT

On, green The board works normally.

On, red Hardware failure.

On for 100ms and offfor 100ms

alternatively, red

Hardware mismatch.

Off The board is not powered on, or the

service is not configured.

Service

activation

indicator-

ACT

On, green The service is activated. (In TPSprotection mode, the board is in

working status.)

Off The service is not activated. (In TPS

protection mode, the board is in

protection status.)


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Indicators


Board

software

indicator-PROG

On, green Upload of board software to FLASH or theFPGA upload is normal, or the board software

initialization is normal.

On for 100ms and

off for 100ms

alternatively, green

Board software is being uploaded to FLASH or

FGPA.

On for 300ms andoff for 300ms


The board software is initializing, and is in BIOSboot stage.

On, red The board software in FLASH or the FPGA

configuration is lost, resulting in upload and

initialization failure.

Off No power supply.

Service

alarm

indicator-

SRV

On, green Service is normal, no service alarm occurs.

On, red Critical or major alarm occurs to service.

On, yellow Minor or remote alarm occurs to service.

Off No service configured or no power supply.


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PDH Access Unit

Relationship with other boardsWith Cross connect board:

Receives/sends VC4 signalfrom/to cross connect board

Receives/sends clock signal

from/to cross connect board

Communicates with

SCC board via Lanswitch:

Reports its running information,Receives control command


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PDH Access Unit


Slot Purpose Slot

2

Working

19

3 21

4 23

5 25

13 29

14 31

15 33

16 35


Processing: PL3

Interface: C34S (SMB)

Processing: PD3

Interface: D34S (SMB)


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35



PDH Access Unit

Processing: SPQ4Interface: MU04

(SMB)


Slot Purpose Slot

2

Working

19

3 21

4 23

5 25

13 29

14 31

15 33

16 35



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SDH Access Unit

Boards Function

SL64 1 X STM-64

SL16 1 X STM-16

SLQ4 4 X STM-4

SLD4 2 X STM-4

SL4 1 X STM-4

SLQ1 4 X STM-1

SL1 1 X STM-1

SEP1 8 X STM-1 Processing

Interface Boards FunctionEU08 8 X STM-1 Electrical

OU08 8 X STM-1 Optical

EU04 4 X STM-1 Electrical


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SDH Access Unit


Board 35G 60G

SL64 8/11 7/8/11/12

SL16 6~8, 11~13 5/6/7/8/11/12/13/14

SLQ4 6~8, 11~13 5/6/7/8/11/12/13/14

SLD4 6~8, 11~13 1~8, 11~17

SL4 1~8, 11~16 1~8, 11~17

SLQ1 1~8, 11~16 1~8, 11~17

SL1 1~8, 11~16 1~8, 11~17

SEP1 (Depending

on interface used)1~6, 13~16 or 2~5, 13~16

Interface

Board

Slot

EU08

(60G)19/21/

23/25/

29/31/

33/35

OU08

(60G)

EU04


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Alarms and Performance Events

Indicators



SDH Access Unit

Course Contents


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SDH Access Unit

Critical AlarmsAlarms and Performance Events

R-LOS:

Loss of signalReasons:

1. Light received is too dim

2. Receiver is failed

R-LOF:Loss of frame

Reasons:

1. Clock of the upstream

station is failed2. To many bit errors


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SDH Access Unit

AU-AIS:Reason:

Service is broken at

VC4 level

MS-AIS:Reason:

Caused by critical

alarm

AU-LOP:Reasons:

1. Hardware failure

2. Incorrect service

configuration

Major Alarms


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SDH Access Unit

HP-TIM , HP-SLM:Reasons:

J1 mismatch

C2 mismatch

B1, B2, B3-EXC:Bit error excess

Reasons:

1. Optical path problem

2. Hardware failure

Minor Alarms


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SDH Access Unit

MS-RDI:Multiplex Section Remote

End Defect Indication

Reasons:Remote end detects MS-AIS

Minor Alarms HP-RDI:High-order Path Remote End

Defect Indication

Reasons:

Remote end detects HP alarms

MS-REI:Multiplex Section Remote

End Error Indication

Reasons:

Remote end detects B2 errors

HP-REI:

High-order Path Remote EndError Indication

Reasons:

Remote end detects B3 errors


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SDH Access Unit

Performanceevent

Description ofperformance

B1-BBE B1 check bit error counts



AUPJCHIGH AU pointer positive justificationcounts

AUPJCLOW AU pointer negative justificationcounts

Performance Events


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Confidential Information of Huawei.No Spreading without Permission. Security Level: Internal

SDH Access Unit

with SCC board

DCC and E1~E2

Reports its running information,

Receives control command

with XCS board

VC4 service signal

Relationship with other board


49/100

S


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SDH Access Unit

SDH A U i


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SDH Access Unit

With line boards in dual slot

Pass through D1~D3, E1~E2 (only when SCC unit is not

functioning)

Pass through K1, K2 (only when MSP exists)

8 11

7

126 13

5 14

4 15

3

162 17 (60 G)

S

L

O

T

1

S

L

O

T

2

S

L

O

T

3

S

L

O

T

4

S

L

O

T

5

S

L

O

T

6

S

L

O

T

7

S

L

O

T

8

S

L

O

T

9

S

L

O

T

1

0

S

L

O

T

1

1

S

L

O

T

1

2

S

L

O

T

1

3

S

L

O

T

1

4

S

L

O

T

1

5

S

L

O

T

1

6

S

L

O

T

1

7

S

C

C

Fiber Routing

S

L

O

T

1

8

S

C

C

FAN FAN FAN

Eth t i t f U it


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Ethernet interface Unit

Board Function Slot35G 60G

EGS2

2 X Gigabit Ethernet

Optical Interface with

Lanswitch

6~8,

11~13

5~8,

11~14

EFS44 X Fast Ethernet RJ-45

Interface with Lanswitch

1~8,

11~16

1~8,

11~17

EFS0Fast Ethernet with

Lanswitch2~5, 13~16

Board Interface Slot

ETF8 19/21/23/25/29/31/

33/35

Eth t i t f U it


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Function:

1. Provides 2 LC 1000BASE-SX/LX Ethernet optical

interfaces

2. Support bandwidth adjustment at granularity of 64kbit/s and

service mapping into VC-12 or VC-3 level

3. Supports LCAS

4. Supports the Ethernet Layer 2 switching, RSTP and point-

to-point and point-to-multipoint, MPLS, VPN

Eth t i t f U it


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Function:

5. Supports VLAN and VLAN convergence

6. Supports Layer 2-based convergence and point-to-multipoint

convergence

7. Supports the port-based and port + VLAN-based flow

classification, and the priority setting and queue adjusting of flow

8. Supports IEEE802.3x-compliant flow control

9. Supports inloop and outloop

10.Provides abundant alarm and performance events

Eth t i t f U it


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Front panel and indicator description of EGS2

Indicator status description


Board hardware

indicator-STAT


On, red The board hardware fails.

On for 100ms and off for

100ms alternatively, red

The board hardware is mismatched.

Off The board is not powered on, or the

service is not configured.

Service

activation

indicator-ACT

On, green The service is activated.

Off The service is not activated.

Eth t i t f U it


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Ethernet interface UnitFront panel and indicator description of EGS2



Board

software

indicator-

PROG

On, green Upload of board software to FLASH or the

FPGA upload is normal, or the board

software initialization is normal.


100ms alternatively,

green

Board software is being uploaded to FLASH

or FGPA


300ms alternatively,

green

The board software is initializing, and is in

BIOS boot stage.


configuration is lost, resulting in upload and



Eth t i t f U it


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Ethernet interface UnitFront panel and indicator description of EGS2



Service

alarm

indicator-SRV





LINK 1, 2

On, green The GE port is connected with the opposite

equipment, and the link is established.

Off The GE port is not connected with the opposite

equipment, and the link is not available.

ACT 1, 2

On for 100ms and off

for 100ms alternatively,

orange

There are data exchanged between the GE port

and opposite equipment.

Off There are no data exchanged between the GE

port and opposite equipment.

Eth t i t f U it


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The front panel of EFS0, EFS4 and ETF8

Eth t i t f U it


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Board

hardware

indicator-

STAT

On, green The board works normally.On, red The board hardware fails.

On for 100ms and

off for 100ms

alternatively, red


Off The board is not powered on, or the service isnot configured.

Service

activation

indicator-

ACT

On, green The service is activated.

Off The service is not activated.

Service

alarm

indicator-

SRV





Eth t i t f U it


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Indicator description of EFS0, EFS4


Board

software

indicator-

PROG

On, green

Upload of board software to FLASH or the FPGA

upload is normal, or the board software

initialization is normal.

On for 100ms and

off for 100msalternatively, green

Board software is being uploaded to FLASH orFGPA

On for 300ms and

off for 300ms


The board software is initializing, and is in BIOS

boot stage.

On, redThe board software in FLASH or the FPGAconfiguration is lost, resulting in upload and



Cross connection


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and clock board

We w i l l discuss about the two parts of the board:

Cross-connect uni t and clock uni t



Indicators



Cross connection


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and clock board

Comparison between GXCS and EXCSA/B

Board nameGXCSA

(General XC A)

EXCSA

(Enhanced XCA)

EXCSB

(Enhanced XCB)

Higher order XC

capacity35G 58.75G 60G

Lower order XC

capacity5G 5G, can expand to 20G

Extended subrack

capacity 0 1.25G

Configuration

method of clockSoftware configuration

Cross connection


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and clock UnitPrinciple block diagram of GXCS/EXCS.

5G

lower-order

cross-connect

matrix

35G or 60G4

higher-order

cross-connect

matrix

Timing

unit

Control and

communication unit

Cross-connect Unit


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XC Unit

Functions and Features

Applications

1. Cross-connection:

VC-12, VC-3 and VC-4

AU4-4C, AU4-8C, AU4-16C and AU4-64C

2. Network Protection Control:SNCP at VC-3 & VC-12, MSP

3. Detects Tributary Board faults and Controls TPS

1+1 hot backup mode

Cross connection


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and clock Unit

Critical alarm


TEMP-OVER

Reason:

Operation temperature

over limit

PS

Reason:

Multiplex section protection

has been taking place

Major alarm

ross connec ond l k U it


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and clock Unit

Relationship with other boards

With SCC

Gets control commands

Sends running information

With access boards

Gets/sends VC4 signals

Gets SNCP information

Cross connection


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and clock Unit

In master/slave mode,

master NE uses externalclock or internal

clock, and slave NEstrace the master NE

Synchronization modes(of system)

Cross connectiond l k U i


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and clock Unit

Working modes of clock unit

Normal

Timing signals is ok

HoldoverFrequency information

stored, holding for 24h

Free-run

Internal clock

Cross-connect UnitCl k U it


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Clock Unit

Functions and Features

1. System Internal Clock

2. Traces 2 clock signal channels from external

timing signals

3. Provides 2 clock signal channels to outsidesystems

4. Supports 2 synchronous clock signal input &

2 synchronous clock signal output of 2MHz or

2Mbit/s interfaces.

5. Processes SSM (S1) and Clock ID6. Controls TPS switch

Cross connectiond l k U it


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and clock Unit

Major alarms


EXTSYNLOS

Reason:Loss of external

synchronization source

LTIReason:

Loss of all synchronization

sources

S1-SYN-CHANGEReason:

Synchronization source

switches under S1 byte mode

Critical alarm

Cross connectiond Cl k U it


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and Clock Unit

Cross connection


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and clock Unit

SYNC-LOSReasons:

Loss of synchronization

source of higher class

SYN-BADReasons:

Deterioration of the

synchronization source

Minor alarms



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and clock UnitIndicator description of GXCS/EXCS


Board

hardware

indicator-

STAT




100ms alternatively, red


Off The board is not powered on.

Service

activation

indicator-

ACT

On, green The active GXCS/EXCS is working.

Off The standby GXCS/EXCS is working.



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74


and clock UnitBoard software

indicator- PROG

On, green Upload of board software to FLASH or the

FPGA upload is normal, or the board

software initialization is normal.On for 100ms and off for

100ms alternatively, green

Board software is being uploaded to FLASH

or FGPA


300ms alternatively, green

The board software is initializing, and is in

BIOS boot stage.


configuration is lost, resulting in upload andinitialization failure.


Service alarm

indicator-SRV




Off No service is configured.

Synchronization

clock indicator-

SYNC

On, green The clock works in synchronous status.

On, red The clock works in hold-over or free-run

mode.

SCC Board


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SCC Board

Functions:

SEMF:

Manages local equipment

MCF:

1. Communicates with other

NEs by D1-D3

2. Communicates with NM

through OAM interface

System control

Orderwire

Inter-board communication System power monitoring

Support 1+1 hot backup

protection

SCC Unit


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76


SCC Unit

Slots available:

35 G Config Slots 17 & 18

60 G Config Slots 17 (Opt) & 18

Interfaces related to SCC Board are

on AUX Board

SCC Board


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77


SCC Board

The principle block diagram of SCC

Serial 1~4

F1

F&f

OAM

50 DCCs (D1 ~ D3)

Power

monitoringmodule

1 orderwire phone4 cabinet alarm indicator interfaces

AUX backup power alarm detectionFAN alarm detection and manageme

PIU alarm detection and managemen

485 communication bus

NM interface

Control moduleCommunication

module

Overhead

processingmodule

16 Boolean input interfaces and

4 Boolean output interfaces

2 SDH NNI phones

SCC Board


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SCC Board

Software Function

Boots the system,

loads and upgrades host software

Self-checks the SCC hardware DCC communication

Accomplishes real time

supervision, maintenance and

management

SCC Board


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79


Applications

ID is the only identification for an NE

ID is configured in range of 1 ~ 49136 with software

The default value of ID is 0 x BFF0 (49136)

SCC Board

SCC Board


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80


MDB (like RAM in PC)

In dynamic RAM

Automatically saves the current data

If power fails, the data in MDB will be lost

DRDB (like HD in PC)

Automatically saves the successfully verified data

Saves the data in flash RAM

The battery provides power

FDB0, FDB1 (like floppy disk in PC)

Manually saves the data

Enduringly saves data and does not need battery

SCC Board

Four databases on the SCC:

MDB

DRDB

issued data

verify

Board

running

FDB0

FDB1

manual save

Installing

success

fail

SCC Board


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81


SCC Board

Modem Connection

SCC Board


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82


SCC Board

NEA

NEB

NEC

DCN

ROUTER

NMTerminal ROUTE

WAN Connection

SCC Board


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SCC Board

Name Description and reason Severity

NESTATE_INSTALL NE state install Critical

HARD_BAD Hardware fails Critical

POWER_FAIL Power failure Major

APS_MANUAL_STOP APS manual stop Minor

WRG_BD_TYPE Wrong inserted board type Minor

NE_SF_LOST It lacks a set of host software Warning

Alarm List

SCC Board


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84


SCC Board

What information will be reported to SCC

from an SDH board?

Why SCC board needs timing signals?

Relationship with other boards

SCC Board


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85


SCC Board

Front panel of SCC

Switch description on SCC

Switch name RESET ALMCUT

Function

descriptionReset button

Alarm cut

off Button

SCC Unit


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86



Board

hardwareindicator -

STAT



On for 100ms and

off for 100msalternatively, red

The board hardware ismismatched.

Off

The board is not powered

on, or service is not

configured.

Service

activation -

ACT

On, green Active status.

Off Standby status.

Indicator description SCC Board


87/100

SCC Unit


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88


SCC Unit

Indicator Color and status DescriptionIndicator for -48V

power supply A -

PWRA

On, green -48V power supply A is normal

On, red or off-48V power supply A is faulty (lost or

fails)

Indicator for -48V

power supply BPWRB

On, green -48V power supply B is normal

On, red -48V power supply B is faulty (lost orfails)

Indicator for 3.3V

power supply C

PWRC

On, green 3.3V Protection power is normal

On, red 3.3V Protection power is lost

Alarm cut

indicator-

ALMC

On, green Currently in permanent alarm cut-offstatus

OffAudible sound present for critical

alarm

Indicator description of SCC board

Contents


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89



Sub-rack

Circuit Boards

Auxiliary Parts

Auxiliary parts


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90


y p

1. Auxiliary Interface Unit

2. Power Interface Unit

3. Fan Unit4. Optical Amplifying Boards

5. Dispersion Compensation Unit

Auxiliary Interface Unit


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91


y

AUX Board

Slot available: 37

Functions: Back up Power Supply for boards

Interfaces for:

1. 10M/100M Lanswitch (NMS)2. Orderwire

3. Clock Input/Output

Auxiliary Interface Unit


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92


y

75ohm clock IN 1

75ohm clock IN 2

75ohm clock OUT 1

75ohm clock OUT 2

120ohm clock 2

NM port

COM test port

Extension subrack port

4 cabinet indicators

cabinet indicators concatenation

Alarm concatenation

Boolean alarm output 1~4

Alarm input 1~4

Alarm input 5~8

Alarm input 9~12

Alarm input 13~16

120ohm clock 1

Reserved

F&f

Orderwire phone

SDH NNI telephone 1

SDH NNI telephone 2

OAM

Series 1

Series 2

Series 3

Series 4

F1

Indicator STAT

Indicator description AUX Board

Indicator Color Meaning

Board

hardware

indicator -

STAT

On,

Green

+3.3V Power

Supply is normal.

On, Red +3.3V powersupply is abnormal

and the AUX board

is fed with the back

up power.

Off Both the +3.3Vworking power and

backup power fail.

No power on board.

Power Interface Unit


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93


PIU Power interface board, seated in Slot 27 and 28

Functions: Power access

Lightening protection and filtering

2 X 50W power interfaces for

some devices (Hub) 1+1 Hot Back up protection

PIU front panel

-48V power supply interface

Two 50W power interfaces

for devices such as COA,

TDA and HUB

FAN Unit


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94


Function and features:

3 Fans supporting hot swapping

Automatically adjust fan speed

Turns off fans at low Temp

Indicator Color Description

Operation

status

indicator-STAT

On,

green

The fan operates

normally.

On, red

The fan, fan power

board or FAN is

abnormal.

On,

yellow

The fan is turned off

due to low

temperature.

Amplifying Boards


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p y g

Functions:

BA2

2 pairs LC type connector

2 Optical Power Amplifier output

Transmit power amplification of +14dBm or + 17dBm

Transmission distance 120 ~ 130 Km

BA2: Optical Booster Amplifier

Amplifying Boards


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96


y g

BPA: Optical Booster & Pre-amplifier

Functions:BPA

2 pairs LC type connector

1 Optical amplifier output 1 Optical pre-amplifier for

reception

Transmit power amplification

of +14 dBm or + 17dBm

Increase receiver sensitivity

Support signal power gain of

22 ~ 25 dB

Amplifying Boards


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Tx BA Rx

Tx PA Rx

Amplifying boards positions in a network

Can be inserted in Slots 1 ~ 8, 11 ~ 17

Transmitting

Station

Receiving

Station

Dispersion Compensation Unit


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98


DCU: Dispersion Compensation Unit

Functions: 2 pairs LC for 2 X 10Gbit/s signals dispersion

compensator

Used at receiving station when transmitted distance

exceeds 80 km Inserted in Slots 1~8, 11~17

Tx BA RxPA DCU

1550.12 nm 1550.12 nm

Summary


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Sub-rack

Circuit Boards Auxiliary Parts


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Date post:	14-Apr-2018
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OTA105103 OptiX OSN 3500 Hardware System Overview ISSUE1.0

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