Telect MIX 28

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128877-1 A0

USER MANUAL


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ii Telect, Inc. 128877-1 A0

MIX 28 User Manual

Document Number 128877-1 A0

Copyright 2004, Telect, Inc., All Rights Reserved.

Telect and Connecting the Future are registered trademarks of Telect, Inc., 1730 N. Madson St., Liberty Lake,

Washington 99019

Technical Support (USA):

By e-mail: [email protected]

By phone: 888-821-4856 or 509-921-6161

Note:

Telect assumes no liability from the application or use of these products. Neither does Telect convey any license un-

der its patent rights nor the patent rights of others. This document and the products described herein are subject to

change without notice.

REGULATORY AGENCY COMPLIANCE

This equipment complies with the requirements in Part 15 of FCC Rules for a Class A computing device. Operation

of this equipment in a residential area may cause unacceptable interference to radio and television reception, requir-

ing the operator to take whatever steps are necessary to correct the interference. Telect shielded cables should be usedwith this unit to ensure compliance with the Class A limits.

This equipment is listed to UL 60950, Third Edition; EN60950:1992; EN55022, Class A, 1994; and EN50082-1,

1991 (EN61000-4-2, EN61000-4-3, EN61000-4-4), following the provisions of the EMC directive 89/336/EEC and

the Low Voltage directive 73/23/EEC.

WARRANTY AND LIABILITY

Limited Two Year Depot Warranty (Except Where Prohibited By Law)

All Telect, Inc. MIX 28 products are warranted to be free of defects in material and workmanship under normal use

for two years after the original purchase by the end user. The purchase date shall be assumed to be the latest of the

following:

The date the product was shipped from Telect;

The date indicated on the returned warranty postcard, provided that the postcard is returned within 90 days of the

ship date; or

The date indicated on a photocopy of a sales receipt from either Telect or an authorized Telect distributor.

Telects responsibility is limited to depot repair, refurbishment, or replacement (at Telects discretion) of the defective

product with the same version or upgrade, or, if repair/refurbishment/replacement is not possible, a refund of the pur-

chase price. Repair parts and replacement products will be provided on an exchange basis and will be either new or

reconditioned. This limited warranty does not cover damage to the product resulting from accident, disaster, misuse,

abuse, negligence, improper maintenance, or modification or repair by other than Telect personnel.

Limited warranty service may be obtained by contacting Telects technical support department at 800-551-4567. NO

DEPOT WARRANTY SERVICE WILL BE PROVIDED UNLESS A RETURN MATERIAL AUTHORIZATION

(RMA) NUMBER HAS BEEN ISSUED AND THE PRODUCT IS SHIPPED WITH AN ENCLOSED REPAIR/RE-

PLACEMENT CARD. This limited warranty is in lieu of all other warranties, expressed or implied, including, but

not limited to, the implied warranties of merchantability and fitness for a particular purpose. Some countries do not

allow the exclusion of implied warranties, and in such a case, the above exclusion may not apply to you.


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128877-1 A0 Telect, Inc. iii

Out-of-Warranty Repairs

If the product warranty has expired or if the product does not qualify for warranty service, you will be charged a ser-

vice fee. Out-of-warranty service will be performed only after receipt of payment. Please call the Telect, Inc. sales de-

partment at 800.551.4567 to inquire about current charges. NO SERVICE WILL BE PROVIDED UNLESS A RE-

TURN MATERIAL AUTHORIZATION (RMA) NUMBER HAS BEEN ISSUED.

Limitation of Liability

Neither Telect, Inc. nor their authorized distributors/dealers shall be liable for any defect, indirect, incidental, special

or consequential damages, whether in an action in contract or tort (including negligence and strict liability), such as,

but not limited to, loss of anticipated profits or benefits resulting from the use of the product or any breach of any

warranty, even if Telect or its authorized distributors/dealers have been advised of the possibility of such damages. In

no event will Telect or their authorized distributors/dealers liability exceed the price paid for this MIX 28 product.

Some countries do not allow the exclusion or limitation of incidental or consequential damages, and in such a case,

the above limitation may not apply to you.

SOFTWARE LICENSE AGREEMENT

This Software License Agreement (Agreement) between Telect, Inc. (Telect) and Licensee (Licensee) hereby

grants to Licensee a nontransferable, nonexclusive license to use the software incorporated with the Telect MIX 28

M13 Multiplexer/X-Connect system (Product) identified above, including the computer software and any associat-ed media and printed materials (Software) for its internal business purposes subject to the following terms, condi-

tions, and restrictions:

1. License

a. The license granted herein authorizes the Licensee, its authorized employees and any agents or contractors using

the Software in the performance of service for Licensee, to use the Software solely in conjunction with the operation

of the Product as specified in the Software documentation set forth in the Product users manual.

b. Neither the Software nor any part or portion thereof may be sublicensed, copied, reproduced or duplicated by any

means, or translated into machine language, without the prior express written permission of Telect, except that Lic-

ensee may make those copies of the Software necessary for nonproductive back-up purposes only. Further, Licensee

shall not compile, decompile, or reverse engineer the Software nor use the Software to develop derivative works orcommercially competitive products. Any attempts to do so shall be a breach of this Agreement.

c. Except as set forth in Section 1, use of or access to the Software in any manner by any person not employed by, or

under written contract with the Licensee is prohibited.

d. The right of the Licensee to use the Software under the terms of this Agreement shall commence on the date of pur-

chase of Product by Licensee and shall continue perpetually, provided Licensee complies with the terms and condi-

tions of this Agreement.

2. Title

The Software, enhancements, revisions, updates, upgrades, modifications, and derivative works thereto, custom pro-

gramming, and all other items delivered by Telect under this Agreement, and all copyright, patent, and other intellec-

tual property rights therein: (i) are owned or licensed by and are proprietary to Telect or its licensors and (ii) consti-

tute commercially valuable trade secrets of Telect or its licensors.

3. Warranty

Telect represents and warrants to Licensee that, during warranty period for Product, the Software will perform sub-

stantially in accordance with the accompanying documentation and further warrants that the media, as originally de-

livered, shall be free from defects in materials and workmanship.


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iv Telect, Inc. 128877-1 A0

Limitation of Warranty

a. Telect does not warrant that the Software will be uninterrupted or error-free in all circumstances. Licensees sole

and exclusive remedy for breach of the warranty is that Telect will make a reasonable effort to correct any document-

ed nonconformity reported in writing to Telect during the Product warranty period.

b. Telect is not responsible for any defect or noncompliance Software documentation not reported during the Product

warranty period or any defect or noncompliance Software documentation after the Software has been modified with-

out the consent of Telect, or otherwise misused, or damaged.

EXCEPT AS EXPRESSLY SET FORTH IN THIS SECTION, AND TO THE MAXIMUM EXTENT PERMITTED

BY APPLICABLE LAWS, TELECT SHALL HAVE NO LIABILITY TO LICENSEE OR ANY THIRD PARTY

FOR THE SOFTWARE OR PROVISIONS OF OR FAILURE TO PROVIDE SUPPORT SERVICES UNDER THIS

AGREEMENT, INCLUDING ANY LIABILITY FOR NEGLIGENCE; TELECT MAKES AND LICENSEE RE-

CEIVES NO WARRANTIES, EXPRESS, IMPLIED, STATUTORY, OR IN ANY OTHER PROVISION OF THIS

AGREEMENT OR IN ANY OTHER COMMUNICATION; AND TELECT SPECIFICALLY DISCLAIMS ANY

WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NONIN-

FRINGEMENT.

4. Protection of Proprietary Rights

Licensee acknowledges that the Software contains information that is proprietary to Telect or its licensors, and that all

such information is of a confidential trade secret nature. Licensee will take all necessary steps to protect such propri-

etary rights and to maintain the confidentiality thereof, and agrees not to disclose any information regarding the Soft-

ware to any third party except Licensees employees, agents and contractors who have a need to know and who are

bound in writing to preserve the confidentiality thereof. Licensee agrees that its contractors shall have access to the

Software only at Licensees location. Licensee further agrees that its contractors shall be deemed agents of Licensee

and therefore Licensee shall have the same liability for its contractors as Licensee has for its employees and agents.

Licensee will promptly notify Telect of any unauthorized use of the Software. Each partys obligations with respect to

confidentiality shall survive the termination of this Agreement. Each partys confidential information shall not in-

clude information that: (a) is or becomes a part of the public domain through no act or omission of the other party; (b)

was in the other partys lawful possession prior to the disclosure and had not been obtained by the other party either

directly or indirectly from the disclosing party; (c) is lawfully disclosed to the other party by a third party without re-striction on disclosure; or (d) is independently developed by the other party without breaching any confidentiality ob-

ligations.

5. Limitation of Liability; Exclusion of Consequential Damages

The maximum cumulative liability of Telect to Licensee for all claims relating to the Software and any Services ren-

dered hereunder, in warranty, contract, tort, or otherwise, shall not exceed the total amount of the price paid for Prod-

uct by Licensee.

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT, UNDER THIS SECTION

OR OTHERWISE, SHALL TELECT BE LIABLE TO LICENSEE FOR ANY SPECIAL, INCIDENTAL, INDI-

RECT, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING WITHOUT LIMITATION, DAMAG-

ES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION,

OR ANY OTHER PECUNIARY LOSS) ARISING OUT OF USE OF OR INABILITY TO USE SOFTWARE OR

TELECTS FAILURE TO PROVIDE SUPPORT SERVICES, EVEN IF TELECT HAS BEEN ADVISED OF THE

POSSIBILITY OF SUCH DAMAGES. THIS EXCLUSION AND LIMITATION OF LIABILITY APPLIES IN ALL

STATES/JURISDICTIONS WHERE PERMITTED BY LAW.

The foregoing limitation of liability and exclusion of certain damages shall apply regardless of the success or effec-

tiveness of other remedies.


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128877-1 A0 Telect, Inc. v

6. Indemnification

If a third party claims that the Software infringes any valid U.S. patent issued as of the effective date of this agree-

ment or copyright, Telect will (as long as Licensee is not in default under this Agreement or any other agreement with

Telect) defend Licensee against such claim at Telects expense and pay all damages that a court finally awards, pro-

vided that (a) Licensee promptly notifies Telect in writing of the claim, and (b) allows Telect to control, and cooper-

ates with Telect in, the defense or any related settlement negotiations. If such a claim is made or appears possible,

Telect may, at its option, secure for Licensee the right to continue to use the Software, modify or replace the Software

so it is noninfringing, or, if neither of the foregoing options is reasonably available in Telects judgment, terminate

this Agreement and provide to Licensee a pro rata refund of the Product purchase price depreciated on a straight-line

basis over a five-year period. However, Telect has no obligation for any claim based on a modified version of the

Software or its combination, operation, or use with any product, data or apparatus not provided by Telect. THIS

PARAGRAPH STATES TELECTS ENTIRE OBLIGATION TO LICENSEE AND LICENSEES SOLE AND EX-

CLUSIVE REMEDY WITH RESPECT TO ANY CLAIM OF INFRINGEMENT.

7. General

Assignment. Licensee may not assign this Agreement or any of its rights or obligations or sublease, sublicense or oth-

erwise transfer the Software without Telects express prior written consent.

Severability. If any of the provisions of this Agreement shall be invalid or unenforceable, such invalidity or unen-

forceability shall not invalidate or render unenforceable the entire Agreement. The entire Agreement shall be con-

strued as if not containing the particular invalid or unenforceable provision or provisions, and the rights and obliga-

tions of Telect and Licensee shall be construed and enforced accordingly.

Export Administration. Licensee agrees to comply fully with all applicable export laws and regulations of the United

States to assure that neither the Software nor any direct product thereof are (a) exported, directly or indirectly, in vio-

lation of export laws; or (b) intended to be used for any purposes prohibited by export laws.

Governing Law. This Agreement and any disputes or matters arising under, in connection with, or relating to this

Agreement shall be governed by and construed in accordance with the substantive laws of the United States and the

State of Washington, without giving effect to the principles of conflict or choice of law of such state.

Venue and Jurisdiction. The state and federal courts in the State of Washington shall have exclusive venue and juris-

diction for such disputes, and the parties hereby submit to personal jurisdiction in such courts.

Section Headings. The section headings used in this Agreement have been inserted for convenience only, and shall

not be deemed to limit or otherwise affect the construction of any provision hereof.


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1 Descriptions

MIX 28........................................................................................ 1-1

Features................................................................................. 1-2Application............................................................................ 1-3

Model Numbers .................................................................... 1-3

MIX 28 Operator Access ............................................................ 1-3

Front...................................................................................... 1-3

Status and Alarm LEDs ........................................................ 1-6

Rear....................................................................................... 1-7

SideCar Operator Access............................................................ 1-8

Data Flow Applications .............................................................. 1-9

MIX 28 Without SideCar...................................................... 1-9

MIX 28 With a DSX-3 SideCar Module ............................ 1-10

MIX 28 With Vector OTM and E-Vector Module ............. 1-10MIX 28 With Vector OPMs................................................ 1-11

Compliance ............................................................................... 1-11

DS1 Patch & Monitor Scheme.................................................. 1-11

Specifications (MIX 28 Without SideCar)................................ 1-12

Signal .................................................................................. 1-12

Power .................................................................................. 1-13

Alarm Contacts ................................................................... 1-13

Environmental..................................................................... 1-13

Floor Weight (Fully Loaded without SideCar)................... 1-14

Dimensions ......................................................................... 1-14

2 Installation

Installation Considerations ......................................................... 2-1

Location and Space ............................................................... 2-2

Tools and Equipment ............................................................ 2-2

Power .................................................................................... 2-3

Technical Support (USA) By e-mail: [email protected]... 2-3

Contents
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Inspection.................................................................................... 2-3

MIX 28 Installation Procedures.................................................. 2-4

Adapting 19-in. Mounting Brackets for a 23-in. Rack ......... 2-4

Mounting to the Rack ........................................................... 2-5

Grounding MIX 28 ............................................................... 2-6

Powering MIX 28 ................................................................. 2-7

Installing External Alarms.................................................... 2-8

DS1 Cabling.......................................................................... 2-8

DS3 Cabling........................................................................ 2-10

Ethernet or Craft Control Cabling ...................................... 2-10

M13 Card Installation............................................................... 2-11

SideCar Interconnections.......................................................... 2-12

Grounding SideCar Enclosures........................................... 2-12

Connecting Power & Alarms to SideCar............................ 2-12

Modem Setup............................................................................ 2-14

Enabling a Modem.............................................................. 2-14

Disabling a Modem............................................................. 2-15

3 User Functions

The Alarm Cutoff/Lamp Button ................................................. 3-1

Disabling Alarms .................................................................. 3-1

Testing LEDs and Resetting the ACO.................................. 3-1

DSX Operation ........................................................................... 3-2

Patching Signals.................................................................... 3-2

Monitoring Signals ............................................................... 3-3

Modem Operation ....................................................................... 3-3

4 Software Operation

Managing A System.................................................................... 4-1

Interfaces............................................................................... 4-2

Ports ...................................................................................... 4-2

To Connect With a Craft Interface Over the Craft Port........ 4-3

Craft Interface Basics.................................................................. 4-4

Navigating Between Screens ................................................ 4-4

Navigating Within Screens ................................................... 4-5

Adding and Selecting Field Information .............................. 4-5Getting Help.......................................................................... 4-5

Default Software Configuration.................................................. 4-6

Security Screen ..................................................................... 4-6

Save Configuration and Restore Configuration Screens ...... 4-6

System Settings Screen......................................................... 4-7

High-Speed Configuration Screen........................................ 4-7

Low-Speed Configuration Screen......................................... 4-7
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Alarm Thresholds Screen...................................................... 4-8

System Interfaces Screen...................................................... 4-8

Accessing The Craft Interface .................................................... 4-8

Setting Security..................................................................... 4-8

Managing Users .................................................................. 4-10

Logging In........................................................................... 4-11

Logging Out........................................................................ 4-12

Configuring MIX 28 ................................................................. 4-13

Specifying System Settings & M13 Card Functions .......... 4-13

Specifying System Interface Settings ................................. 4-15

Configuring the High-Speed Signal.................................... 4-18

Configuring the Low-Speed Channels................................ 4-20

Saving a Configuration ....................................................... 4-24

Restoring a Configuration................................................... 4-27

Viewing Errors.......................................................................... 4-30

Viewing High-Speed Errors................................................ 4-30

Viewing Low-Speed Errors ................................................ 4-33Managing Alarms And Events.................................................. 4-37

Viewing Alarms.................................................................. 4-39

Setting Alarm Thresholds ................................................... 4-41

Viewing Events................................................................... 4-42

Performing Diagnostics ............................................................ 4-44

Running Loopbacks ............................................................ 4-44

BER Testing.............................................................................. 4-48

To Specify a BER Test ....................................................... 4-49

5 Owner Maintenance

Replacing M13 Cards ................................................................. 5-1

Replacing Alarm Cards............................................................... 5-3

To Remove an Alarm Card................................................... 5-3

To Install an Alarm Card ...................................................... 5-4

Replacing Muffin Fans ............................................................... 5-4

To Remove a Fan.................................................................. 5-4

To Install a Fan ..................................................................... 5-5

Updating the Software ................................................................ 5-5

TFTP Update......................................................................... 5-6

CRAFT Port Update ............................................................. 5-7

Transferring Software Versions Between Cards ................ 5-10

6 Service

In Case Of Difficulty .................................................................. 6-1

In-Warranty Service.................................................................... 6-1

Out-Of-Warranty Service............................................................ 6-1

Repacking For Shipment ............................................................ 6-2
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7 Parts & Accessories

Enhancements and Replaceable Parts......................................... 7-1

Cables & Cabling Accessories.................................................... 7-2

Appendix A: Connector Pinouts

64-Pin Connector ....................................................................... A-1

DS1 In .................................................................................. A-1

DS1 Out ............................................................................... A-2

Ethernet Connector .................................................................... A-2

External Alarm Connector ......................................................... A-3

MIX 28 Power Connector.......................................................... A-3

CRAFT Port............................................................................... A-3
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1 DescriptionsMIX 28

Telects Multiplexer with Integrated X-connect for 28 DS1 Circuits or

MIX 28 for short consists of 28 DSX circuits and up to two M13 multi-

plexer cards in a 1RU chassis. MIX 28 fits standard 19- and 23-in. racks.

Each M13 multiplexer card provides interface circuits for converting 28

DS1 low-speed signals1 into a single DS3 high-speed signal. One of the

M13 cards serves as the active card while the other optional card serves as

its standby. Both cards reside horizontally in a card cage accessed via a

door on the front of the MIX 28 chassis. The two cards are in constant com-

munication and replicate all software and hardware functions. All configu-

ration changes made to the active card are also automatically made to the

standby card.

DS1 circuits are either wire wrapped at a pin field on the front of the

MIX 28 chassis or connected at 64-pin Amphenol-style connectors on the

rear. Next to the pin field on the front is the DS1 jack field for 3-port patch-

ing and monitoring.

The high-speed I/O DS3 signals are available at the BNC connectors on the

rear of the chassis.

1. Or 21 E1 circuits

CRAFT Port

DSX-1 Jack Field

DS1 Pin Field

Optional SideCar withOptional Vector Optical Transport Module

M13 Card Access Door
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1-2 Telect, Inc. 128877-1 A0

Configuration, diagnostics, and performance monitoring are performed

through either the Ethernet port on the rear of the chassis (for remote con-

trol via Telnet using TL1 or Telects proprietary Craft interface or via

SNMP) or the RS-232 port on the front of the chassis (for local control us-

ing Telects Craft interface or TL1). In addition, C-Bit remote control of

one MIX 28 by another cross-connected MIX 28 can be done through the

DS3 interface.

In addition to the basic MIX 28 is Telects SideCaradd-on assembly.

Alongside the MIX 28, SideCar adds the capability of up to two optional

card modules for DS3 cross-connect, interconnect, or optical-electronic

conversions.

Features

28 DSX circuits and up to two M13 cards in a 1 RU chassis

Mounts in 19-in. (483 mm) or 23-in. (584 mm) WECO-spaced or EIA-spaced racks

Multiplexes 28 DS1 or 21 E1 signals into one DS3 signal and demulti-

plexes a DS3 signal into 28 DS1 or 21 E1 signals

1:1 redundancy with second M13 card. Meets GR-499 criteria

Processor switching between two M13 cards in less than 50 ms

LED status indicators on front of panel

Alarm card are field replaceable and M13 cards are hot-swappable, all

from the front of the chassis

Form-C critical, major, and minor external alarm contacts

Remote provisioning and monitoring using SNMP or two concurrent

Telnetsessions via the Ethernet port

Separate alarm and event logs are rotating logs of up to 99 entries each

Selectable alarm thresholds

DS1 and DS3 loopback capabilities

BER Testing

DS3 signal format selectable between C-bit or M13 mode

Dynamic T1/E1 configurable, all T1, All E1, or mixed

C-Bit Remote Control to the MIX 28 at the other end of the DS3 link

DS1 line coding individually selectable between AMI or B8ZS for T1and AMI or HDB3 for E1

Adjustable DS1 transmit line build out (LBO) for each channel

Automatic DS3 LBO. T1 LBO up to 6000 ft (~1830 m)

DS3 transmit clock source either recovered from DS3 receive signal or

by internal oscillator

Universal voltages: 20Vdc to 60Vdc

Multiple login along with three levels of user login security
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1 Descriptions

128877-1 A0 Telect, Inc. 1-3

Application

Ideal for wireless base stations, remote sites, or any limited-space applica-

tion, MIX 28 fits multiplexer and DSX functionality in just 1RU of vertical

space

Model Numbers

MIX 28 OPERATOR ACCESS

Front

Model No. Configuration

747-2800-0000 28 DSX-1 Circuits, no M13 Cards

747-2800-0001 28 DSX-1 Circuits, One M13 Card

747-2800-0002 28 DSX-1 Circuits, Two M13 Cards

747-2801-0000 28 DSX-1 Circuits, SideCar, no M13 Cards

747-2801-0001 28 DSX-1 Circuits, SideCar, One M13 Card

747-2801-0002 28 DSX-1 Circuits, SideCar, Two M12 Cards

I

O

M M

O

I

CRAFT

MAINT

STATUS

ACO

SW ACO LS HS

M NR M AJ CRT

STATUS

1 4 8 12 16 20 24 28 T

R

T

R

T

R

1 4 8 12 14

15 18 22 26 28

T

R

R

T

R

T

R

T

R

T

M13 DoorCraft Port: 9-Pin Serial Connectorfor Local or Modem Control

ACO Switch

SideCar (Optional)

DS1 Jack Field DSX-1 Pinfield

Flange Bracket Extensions (2) for 23 in. Racks

MIX 28(19 or 23-in. Rack)

MIX 28With SideCar(23-in. Rack Only)

CRAFT

MAINT

STATUS

ACOSW ACO LS HS

M NR M AJ CRT

STATUSI

O

M M

O

I

1 4 8 12 16 20 24 28 T

R

T

R

T

R

1 4 8 12 14

15 18 22 26 28

T

R

R

T

R

T

R

T

R

T

Front Views
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MIX 28 User Manual

1-4 Telect, Inc. 128877-1 A0

Flange Bracket Extensions: Added to the existing 19-in. flanges to adapt

to 23-in. racks. Extensions are used only on MIX 28 Systems without Side-

Car. MIX 28 with the SideCar option fits 23-in. racks only.

CRAFT Port: Female DB-9, RS-232 serial connector used for local con-trol by either Telects proprietary Craft interface or TL1.

M13 Door:Contains Status and Alarm LEDs along with the ACO Switchdescribed in the next paragraph. (See Page 1-6 for descriptions and func-

tions of status and alarm LEDs.)

ACO SW: Alarm Cut-Off Switch. When pressed and released, it turns offexternal alarms for a time period specified in the system settings screen ofthe craft interface or through SNMP. When pressed and held for three sec-

onds, it tests the LEDs on the LED panel and the M13 cards by changing

the panel LEDs to amber (except Critical and Major, which turn to red).

Testing the LEDs also sets the ACO timer. (See Page 3-1.)

DS1 Jack Field: 28, 3-Port Circuits. Used for patching and monitoring

DS1 signals.

DSX-1 Pinfield: 28 DSX-1 wire-wrap pin field. Used for routing and

cross-connecting DS1 tip and ring I/O signals.

M13 Cards: One or two of these printed circuit boards per system. Housesthe active circuitry for multiplexing functions. One card for nonredundant

systems, two cards for redundant systems. Each card has an ejector handle

at the left, as shown in the following illustration.

The function of the M13 Status LED is duplicated by the STATUS LED onthe M13 door. The Status LED conditions are as follows:

Right-Front View with M13 Door Open

M13 Cards (1 or 2)

3-Port Patch (I/O) & Monitor (M) Jacksfor Each of the 28 DS1 Circuits Fanning Strips for Cable Management

Circuit Designation

Alarm Card

Cooling Fan(Air Flows from Inside to Outside)

DSX-1 I/O T/R Pinfield(4 Pins Per Each of 28 Circuits)

M13 Status LEDS*

* Same function as STATUS LEDs on door.

Pull-Out Cards (2)of Wire-Wrap Conductors
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1 Descriptions

128877-1 A0 Telect, Inc. 1-5

Lights green for the active card.

Lights orange for a standby card with no critical alarms.

Solid red on the standby card indicates the card has detected a critical

alarm condition or is otherwise nonoperational.

Flashing red indicates a card cannot resolve an alarm condition. Unlit means the card is not receiving power, or has a failure in the pro-

cessor circuitry.

Circuit Designation Cards: Two pull-out cards for circuit designations.

The left hand card is for Circuits 1 through 14 and the other for Circuits 15

through 28

Fanning Strips: Used to neatly arrange wire-wrapped conductors to/from

the wire-wrapped DS1 pinfield.

M13 Status LED*

Card Ejector

* The Status LED on the M13 card is visible only when the M13 door is open. The function of thisLED is duplicated by the STATUS LED on the M13 door.

M13 Multiplexer Card


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MIX 28 User Manual

1-6 Telect, Inc. 128877-1 A0

Status and Alarm LEDs

The LED status indicators on the M13 door are shown in the following il-

lustration.

LED Description Color Indication

STATUS M13 Card Status

RedStandby Card: Indicates critical alarm unseen by Ac-

tive Card.

Amber Standby Card: Indicates standby status

Green Active Card: Indicates active status

Unlit No power or card has failed

ACO Alarm Cutoff (ACO)Amber ACO is engaged

Unlit ACO is not engaged

LS Low Speed

Red Receiving AIS or experiencing LOS

Amber

All enabled LS circuits are operating normally. Have

one or more LS circuits enabled but not monitoring

for alarms (Enabled No Alarms state).

Green Operating normally

Unlit Out of service or no power

HS High Speed

Red Receiving alarm indication signal (AIS) or experienc-ing loss of signal (LOS) or out of frame (OOF) signal

Amber Receiving remote alarm indication (RAI)

Green Operating normally

Unlit Out of service or no power

MAINT Maintenance

AmberDiagnostic tests are being performed; at least one

circuit is out of service; standby being updated

UnlitNo diagnostic tests are being performed; no update

of standby

MNR MinorAmber

One or more minor alarms. Service processing and

traffic unaffected.

Unlit No minor alarms

MAJ MajorRed

One or more major alarms. (DS1 or DS3 service im-

pacting condition.) Also lights during an overtemp

condition caused, for example, by a fan failure

Unlit No major alarms

CRT CriticalRed

One or more critical alarms. (Two or more DS1s

and/or DS3 service affecting conditions.)

Unlit No critical alarms

CRAFT

MAINT

STATUS

ACO

SW ACO LS HS

MNR MAJ CRT

STATUS


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1 Descriptions

128877-1 A0 Telect, Inc. 1-7

NOTE

When a MIX 28 system is operating normally, the High- and Low-Speed

LEDs on the LED panel and the active cards Status LED are all green. If

the system is redundant, the standby card LED is amber. Any LED configu-

ration other than this indicates the system is not operating normally.

Rear

Power Receptacle (20 to 60Vdc): Four-position, screw-tight terminal for

22 to 14 AWG conductors. Used to supply redundant (A, B) power.

ETHERNET Port: RJ45 10Base-T (half-duplex) connector with twoLEDs. Interface for managing system remotely via either SNMP or Telnet.

When lit, green LED means valid link pulse detected and flashing amber

LED means traffic in either direction.

NOTE

Before using the Ethernet port, you must connect to the local craft interface

through the CRAFT port and set the systems IP and Subnet Mask address-es in the System Interfaces screen. See Specifying System Interface Set-

tings on Page 4-15.

DS1 OUT: One 64-pin female connector for outgoing low-speed signals.

DS1 IN: One 64-pin female connector for incoming low-speed signals.

Cable Tie Anchors: One per 64-pin connector for cable management.

DRAIN WIRES: Two #6-32 studs, one for each 64-pin connector. Usedfor grounding cable drain (shield) wire to logic ground.

DS3 OUT: 75-ohm female BNC connector for outgoing high-speed signal.

DS3 IN: 75-ohm female BNC connector for incoming high-speed signal.

ALARM Contacts: Nine wire-wrap pins for form-C dry contacts used toextend critical, major, and minor alarms to external alarm system.

DS3 IN BNC

EXTERNALCLOCKA

TB

RRT

ALARMS ETHERNET

DS1OUT

DS1INNC CO

M

MNR

NO

MJR

NC

COM

NO

CRT

NC

COM

NO

+B -B +A -A

20-60V

1/2AFUSEMAX, 48VNOM

1AFUSE MAX,24V NOM

SideCar Chassis Ground

Tracer LED

MessengerWire Jack

XI

XOOI

XOX

IOI

DRAIN WIRE

DS3OUT

DS3IN

Ethernet Connector With GRN & YEL LEDS

Dual Studs for MIX 28

Chassis Ground64-Pin, DS1 IN Connector

Drain Wire Posts for DS1 Cables

SideCar Power & Alarm Connections

MIX 28 Power Connections

DS3 OUT BNC64-Pin, DS1 OUT Connector

SideCar (Optional)

MIX 28 External Alarm Wire-Wrap Pins

External I/O ClockWire-Wrap Pins*

* Not Used.

DS3 BNC Connections**

** Layout and function of connections depends on type of card modules (DNI-3, DSX-3, or Vector) in the SideCar Chassis.

Cable Tie Anchors (2)

Rear View
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MIX 28 User Manual

1-8 Telect, Inc. 128877-1 A0

Chassis Ground: #10-32 dual ground stud on 5/8 in. centers.

SIDECAR OPERATOR ACCESS

The MIX 28 SideCar option is covered in detail in theMIX 28 SideCarUser Manual(Publication 128878). The SideCar option can be added to

existing MIX 28 Systems mounted in 23-in. rack.

The dual-module SideCar chassis allows addition of modules for DSI-3,

DSX-3, and/or fiber-copper conversions of DS3 I/O signals. SideCar fiber-

copper (optical-electronic) conversions require Telects Vector family of

transport modules. In addition, Telects E-Vector Module allows optical-

electronic conversion of MIX 28 Ethernet communications.

The following illustration shows a SideCar chassis with a Vector Optical

Transport Module (OTM) at the top and an E-Vector Module at the bottom.

Operator access consists of the following, shown in the illustration on

Page 1-7:

Power & Alarm Receptacle (20 to 60Vdc): Seven-position, wire-clamp-

ing terminal for 22 to 14 AWG conductors. Used to supply redundant (A,

B) power to the system and to interconnect power fail and major alarms toexternal alarm system.

Chassis Ground: Single #8-32 ground stud.

Backplane BNCs, Tracer Lamps, & Messenger Wire Jacks: The type

and purpose of the backplane assembly or the need for one depends on the

type of module(s) installed in the SideCar. The backplane assembly includ-

ed with the MIX 28 with SideCar contains the following:

SideCar (Shown with Vector Modules)

E-Vector Module

Vector OTM


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1 Descriptions

128877-1 A0 Telect, Inc. 1-9

OX (DS3 Out): 75-ohm female BNC connector for outgoing high-speed cross-connect signal.

IX (DS3 In): 75-ohm female BNC connector for incoming high-speedcross-connect signal.

O (DS3 Out): 75-ohm female BNC to be externally interconnected toDS3 OUT BNC on the rear of the MIX 28 chassis.

I (DS3 In): 75-ohm female BNC to be externally interconnected to theDS3 IN BNC on the rear of the MIX 28 chassis

Tracer LED (Red): Used to locate DSX-3 cross-connects. When a

messenger wire is connected at the adjacent jack, the lamp flashes

when a plug is inserted in the DS3 Monitor (M) jack on the front of a

DSX-3 module or OTM. The tracer LED remains lit until the monitor

plug is removed.

Messenger Wire Jack: Used to interconnect tracer signals.

DATA FLOW APPLICATIONS

MIX 28 Without SideCar

T

R

T

R

T

R

1 4 8 12 14

15 18 22 26 28

T

R

R

T

R

T

R

T

R

T

DS1OUT

DS1IN

DS3 OUT

DS3 IN

IN

OUT

IN

OUT

High Speed Low Speed

M

O

I

R


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MIX 28 User Manual

1-10 Telect, Inc. 128877-1 A0

MIX 28 With a DSX-3 SideCar Module

MIX 28 With Vector OTM and E-Vector Module

T

R

T

R

T

R

1 4 8 12 14

15 18 22 26 28

T

R

R

T

R

T

R

T

R

T

DS1OUT

DS1IN

DS3 OUT

DS3 IN

IN

OUT

IN

OUT


SideCarwith

DSX-3 Module

IOIXOX

To aDSX-3 Module

M

O

I

R

T

R

T

R

T

R

1 4 8 12 14

15 18 22 26 28

T

R

R

T

R

T

R

T

R

T

DS1OUT

DS1IN

DS3 OUT

DS3 IN

IN

OUT

IN

OUT


SideCarwith a

Vector OTM

OUT (T) IN (R)

Optical DS3

IO

M

O

I

R

ETHERNETRJ45 Cross-Over Cable

SideCarwith an

E-Vector Module

OUT (T) IN (R)

Optical Communications

Copper Communications


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1 Descriptions

128877-1 A0 Telect, Inc. 1-11

MIX 28 With Vector OPMs

COMPLIANCE

FCC

UL

NEBS Level 3

GR 342

DS1 PATCH & MONITOR SCHEME

T

R

T

R

T

R

1 4 8 12 14

15 18 22 26 28

T

R

R

T

R

T

R

T

R

T

DS1OUT

DS1IN

DS3 OUT

DS3 IN

IN

OUT

IN

OUT


SideCarwith Redundant

Vector OPMs

OUT (T) IN (R)

Optical DS3

IO

& an OPMBackplane

M

O

I

R


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MIX 28 User Manual

1-12 Telect, Inc. 128877-1 A0

SPECIFICATIONS (MIX 28 WITHOUT SIDECAR)

See theMix 28 SideCar User Manual(Publication 128878) for SideCar

specifications.

Signal

DS1

Impedance: 100 ohms nominal, balanced

Line Rate: 1.544 Mb/s 32 ppm

Line Coding: AMI or B8ZS (user selectable)

Jitter: Meets ANSI T1.403, T1.102, AT&T 62411

Pulse Amplitude and Shape: Per ANSI T1.102, T1.403, and GR-342-CORE

Return Loss: < -26 dB

Short Haul DSX-1 (selectable)

Cable Length in feet (22 gauge ABAM or equivalent): 0110, 110220,

220330, 330440, 440550, 550660

Long Haul DS1 (selectable)

Cable Length (22 gauge ABAM or equivalent): 6000 ft (total cable

length).

Line Build Out (LBO): 0 dB, 7.5 dB, 15 dB, 22.5 dB. These corre-

spond to approximate cable lengths of 6000-4500 ft, 4500-3000 ft,

3000-1500 ft, and 1500-0 ft, respectively. Receive sensitivity down to -

30 dB. Far-end equipment must have comparable long-haul receive

sensitivity.

E1

Impedance: 120Ohms nominal, balanced


Line Coding: AMI or HDB3 (user selectable)

Jitter: Meets ITU-T G.703, G.823, and I.431

Pulse Amplitude and Shape: meets ITU-T G.703

Return Loss: < -26 dB


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1 Descriptions

128877-1 A0 Telect, Inc. 1-13

DS3

Impedance: 75 ohms, unbalanced

BNC Contact Resistance: < 0.01Ohms


Line Coding: B3ZS

Jitter: Meets ANSI T1.102 and GR-342-CORE

Pulse Amplitude and Shape: Meets ANSI T1.102 and GR-342-CORE

Return Loss: < -18 of loss

Cable Transmit Length: 450 ft. to DSX using 734 coaxial type cable

Line Build Out (LBO): Adjusted automatically by system

PowerDC Input Voltage Range: 20Vdc to 60Vdc

DC Input Current: A max. load at nominal 48Vdc per system; 1A

max. load at nominal 24Vdc per systems

Wire Gauge: 18 AWG (recommended)

Fuse: 1A for nominal -48Vdc; 2A for nominal 24Vdc

Alarm Contacts

Form-C Contact Ratings: 400 mA at 125 Vac, 750 mA at 30Vdc

Environmental

Operating Temperature: 0C to +50C

Nonoperating Temperature: 40C to +65C

Humidity: 5% to 95% noncondensing

Altitude: 010,000 ft. operating

Shock: Meets Telcordia GR-63 and NEBS level 3 requirements

Vibration: Meets Telcordia GR-63 and NEBS level 3 requirements

Heat Dissipation: 50 BTUs/hour (chassis with two M13 cards)


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MIX 28 User Manual

1-14 Telect, Inc. 128877-1 A0

Floor Weight (Fully Loaded without SideCar)

~12 lb (5.5 kg)

Dimensions

See the following illustrations.

23.0 (585)

19.0 (483)

22.3 (566)

18.3 (465)

1.25(31.75)

1.00(25.4)

1.72(43.7)

12.2(310)

10.0(254)

1.25 (31.8)

.036 (9.2)

0.625 (~15.9)

0.2 (~5)

#10-32 KEPS Nuts & Studs #6-32 KEPS Nuts, Washer, & Studs

0.50 (12.7)

0.75 (~19)

75 Ohm, Female BNC64-Pin, D-Type, Amphenol-Style

Female Connector

RJ45 10Base-T Half-Duplex Female Connector With GRN & YEL LEDS

Screw-Down Wire-Binding4-Place Connector for#22 to #12 AWG

REAR VIEW(ROTATED)

TOP VIEW

FRONT VIEW

RIGHT SIDE VIEW

I

O

M M

O

I

CRAFT

MAINT

STATUS

ACO

SW ACO LS HS

M N R M A J CRT

STATUS

1 4 8 12 16 20 24 28 T

R

T

R

T

R

1 4 8 12 14

15 18 22 26 28

T

R

R

T

R

T

R

T

R

T

EXTERNAL CLOCKA

TB

RRT

ALARMS ETHERNET

DS1OUT

DS1INNC CO

M

MNR

NO

MJR

NC

COM

NO

CRT

NC

COM

NO

+B - B + A - A

20-60V

1/2A FUSE MAX,48V NOM

1A FUSE MAX,24VNOM

DRAINWIRE

DS3OUT

DS3IN

IN

OUT

IN

OUT

NOTE: Dimensions are in in. (mm)

MIX 28 Without SideCar


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1 Descriptions

128877-1 A0 Telect, Inc. 1-15

23.0 (585)

22.3 (566)

1.25(31.75)

1.00(25.4)

1.72(43.7)

12.2(310)

10.0(254)

1.25 (31.8)

.036 (9.2)

0.625 (~15.9)

0.2 (~5)

#10-32 KEPS Nuts & Studs #6-32 KEPS Nuts, Washer, & Studs

0.50 (12.7) 0.75 (~19)

75 Ohm, Female BNC

64-Pin, D-Type, Amphenol-Style

Female Connector

RJ45 10Base-T Half-Duplex Female Connector With GRN & YEL LEDS

Screw-Down Wire-Binding4-Place Connector for#22 to #12 AWG

REAR VIEW(ROTATED)

EXTERNAL CLOCKA

TB

RRT

ALARMS ETHERNET

DS1OUT

DS1INNC CO

M

MNR

NO

MJR

NC

COM

NO

CRT

NC

COM

NO

+ B - B + A - A

20-60V

1/2A FUSE MAX,48VNOM

1AFUSE MAX,24V NOM

TOP VIEW

FRONT VIEW

RIGHT SIDE VIEW

I

OM M

O

I

CRAFT

MAINT

STATUS

ACO

SW ACO LS HS

M N R M A J CRT

STATUS

1 4 8 12 16 20 24 28 T

R

T

R

T

R

1 4 8 12 14

15 18 22 26 2 8

T

R

R

T

R

T

R

T

R

TIN

OUT

IN

OUT

#8-32 KEPS Nut & Stud

Tracer LED

MessengerWire Jack

XI

XOOI

XOX

IOI

-A

+A

+B

-B

COM

MAJ

PWRA

LARM

20-60VDC

.5AMP

J 2

4.0(~100)

9.2

(233)

0.9 (22)

NOTE: Dimensions are in in. (mm)

DRAINWIRE

DS3OUT

DS3IN

MIX 28 With SideCar

~130

~3.8 (~97)

~3.6 (~92)

M13 Door Swing-Out Clearance (Top View)


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1-16 Telect, Inc. 128877-1 A0


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128877-1 A0 Telect, Inc. 2-1

2 Installation

INSTALLATION CONSIDERATIONS

CAUTION!CAUTION! This product must be installed and maintained onlyby qualified technicians.

VORSICHT! Nur von qualifizierten Technikern installiert werdenund instand gehalten werden.

PRECAUCIN! Ser instalado y ser mantenido solamente porlos tcnicos autorizados.

ATTENTION! Ce produit doit tre install et entretenu unique-ment par des techniciens qualifis.

ALERT!ALERT! These instructions presume you have verified that thisTelect equipment being installed is compatible with the rest ofthe system, including power, ground, circuit protection, signalcharacteristics, equipment from other vendors, and local codesor ordinances.

ALERT

ALERT! MIX 28 is not intended to be connected directly to out-side plant (OSP) leadsinstall behind a listed NT1-type device.


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MIX 28 User Manual

2-2 Telect, Inc. 128877-1 A0

Location and Space

ALERT!ALERT! This equipment is designed to permit connection of

the earth-grounded conductor of the dc supply circuit to theearth-ground terminal on the equipment. If this connect ismade, all the following conditions must be met:

The chassis ground connection must be made directly to thesame ground conductor as the dc power source ground or to aground bus system designed specifically for that purpose.

The earth ground network is limited to equipment in the im-mediate area, along with the power source.

No switching or disconnecting devices shall be installed inthe earth-grounded network

The MIX 28 chassis mounts to a standard 19-in. (483 mm) or 23-in.

(584 mm) WECO and EIA racks. A 23-in. rack installation requires the ex-

tender brackets. A 23-in. rack is required for mounting MIX 28 with a

SideCar option. A single MIX 28 requires 1.75 in. (1RU) of rack space.

Tools and Equipment

ALERT!ALERT! Only use crimping tools (such as Burndy Y8MRB-1 orequivalent) and components approved by agencies or certify-ing bodies recognized in your country or region, such as Un-derwriter's Laboratories (UL), CSA, or CE.

You need the following tools to install MIX 28:

Flathead screwdrivers: 1/8 in. to connect low-speed cables; 3/32 in. to

wire power connector

#2 Phillips-head screwdrivers to attach mounting brackets to chassis

and attach chassis to rack

3/8 in. and 11/32 in. open-end or socket wrenches (or nut drivers) to at-

tach ground lugs to studs on M28 and SideCar

Wire-wrap tool to connect DS1 conductors to pinfield


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2 Installation

128877-1 A0 Telect, Inc. 2-3

Also, you must supply 14 AWG (minimum) stranded wire for grounding

M13 panel, 18 AWG (minimum) stranded wire for grounding SideCar, and

a groundable, shielded cable for the Ethernet port.

Power

CAUTION!CAUTION! Do not supply power until all connections are madein accordance with requirements specified in local electricalcodes.

ALERT!ALERT! Protect this equipment (MIX 28 and MIX 28 with Side-Car) with a listed/approved branch circuit breaker or fuse suffi-

ciently rated to interrupt power at either 48Vdc at 1A or 24Vdcat 2A for the MIX 28 chassis, and A for the SideCar chassis.The power distribution panel (PDU) containing the breaker orfuse must be accessible when operating a MIX 28 system.

The chassis must receive 20Vdc to 60Vdc. Since MIX 28 includes active

components, Telect recommends using a dual-feed PDU to provide input

power redundancy.

Technical Support (USA) By e-mail: [email protected]

By phone: 888-821-4856 or 509-921-6161

INSPECTION

Compare the contents of the MIX 28 shipping container with the packing

list. Call Telect if you are missing anything.

NOTE

Telect is not liable for shipping damage.

If the shipping container is damaged, keep it for the carriers inspection.Notify the carrier and call Telects Customer Service Department:

1-800-551-4567 or 1-509-926-6000

Keep the container until you have checked equipment operation. If you ex-

perience any kind of problem, call Telects Customer Service Department.

Use the original, undamaged container if you are instructed to return the

MIX 28 to Telect.


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MIX 28 User Manual

2-4 Telect, Inc. 128877-1 A0

MIX 28 INSTALLATION PROCEDURES

These procedures may be modified to agree with site practices or operating

company procedures.

Adapting 19-in. Mounting Brackets for a 23-in. Rack

NOTES

MIX 28 Without a SideCar comes ready for mounting to a 19-in.

WECO or EIA rack. For mounting to a 19-in. rack, continue with

Mounting to the Rack on Page 2-5.

MIX 28 With a SideCar comes ready for mounting to a 23-in WECO or

EIA rack. (MIX 28 with the SideCar option can not be installed on a

19-in. rack.) For Models 747-2801-0001 and -0002, continue withMounting to the Rack on Page 2-5.

To mount a MIX 28 without the SideCar option to a 23-in. rack, attach the

23-in. WECO/EIAextension brackets to the 19-in. brackets already on the

MIX 28, as shown in the following illustration. (Notice that the fanning

strip is secured at this time when making the 19-in. to 23-in. adaptation.)

Fanning Strip Bracket

#12-24 Thread-Cutting Machine Screws(4 Supplied)

Extension Bracket forAdapting 19-in. Bracketsto a 23-in. Rack

(For Right-Side Pinfield Only)

Install 23-in. Extension Brackets Onlyon MIX 28 Without SideCar(If Used, Fanning Strip Bracket Must Be Installed Along With Extensions)


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2 Installation

128877-1 A0 Telect, Inc. 2-5

Mounting to the Rack

A single MIX 28 chassis requires 1.75 in. (1RU) of rack space. When in-

stalling multiple MIX 28, one above the other, install a 1RU heat baffle

above and below each set of four MIX 28s, as shown on Page 2-2.

1. Loosely mount the MIX 28 to the rack using the four, #12-24screws provided, as shown in the following illustrations.

2. For either a MIX 28 on a 19-in. rack

or a MIX 28 with a SideCar, install

the fanning strip bracket (provided)

by removing the two #12-24 screws

on the right, then resecuring along

with the fanning strip bracket be-

tween the chassis mounting bracket

and the head of the screw, as shown

in illustration on the right.

3. Torque all #12-24 bracket and extension screws to 35 in-lb

(4.19 Nm).

When installing a MIX 28 either on a 19-in. rack orwith the SideCar option on a 23-in. rack, first

loosely fasten the right side screws without the

fanning strip bracket.

Fanning StripBracket


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MIX 28 User Manual

2-6 Telect, Inc. 128877-1 A0

Grounding MIX 28

WARNING!WARNING! WARNING! Failure to properly ground this equip-

ment can create hazardous conditions to installation personneland to the equipment.

WARNING! WARNUNG! Bei unsachgemer Erdung bestehtGefahr fr das Installationspersonal und das Gert!

WARNING! AVISO! La conexin incorrecta a tierra puede serpeligrosa tanto para los instaladores como para el equipo.

WARNING! ADVERTISSEMENT ! Si vous ne reliez pas correcte-ment cet quipement la terre, son utilisation prsente desdangers pour la personne qui l'installe ainsi que pour l'quipe-ment.

1. Use a listed (approved) crimping tool to attach a listed (approved)

dual-hole lug (#10 holes on 5/8 in. centers) to a #14 AWG wire

(min.).

2. Clean contact area of compression lug and mating surfaces on rear

of panel. If necessary, use a coarse, non-metallic cleaning pad.

3. If required, lightly coat anti-oxidant on

lug and grounding surface of panel. Se-

cure lug to studs using KEPS nuts provid-ed, as shown in the illustration. Tighten

KEPS nuts to 26 to 28 in.-lb (2.9 to 3.1

Nm) using a 3/8 in. (or 10 mm) socket

4. Secure opposite end of ground cable to

grounded relay rack or bus according to

operating company procedures.

The neutral or grounding conductor of theac power system must

not be used for equipment grounding.


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2 Installation

128877-1 A0 Telect, Inc. 2-7

Powering MIX 28

WARNING!WARNING! WARNING! Before connecting input power cables,

make sure input power to panel is turned off.WARNING! WARNUNG! Vor Anschluss der Eingangsstromka-bel ist sicherzustellen, dass der Eingangsstrom ausgeschaltetist.

WARNING! AVISO! Antes de conectar los cables de entrada dela alimentacin, compruebe que la alimentacin de entrada alpanel est cortada.

WARNING! ADVERTISSEMENT ! Avant de connecter les cblesd'entre d'alimentation, assurez-vous que l'alimentation lec-trique du panneau est coupe.

MIX 28 requires a fused power feed from a power distribution unit (PDU):

If using -48Vdc for battery power, use 24 to 14AWG fused at 1A. Con-

nect -48Vdc to -A and return to +A.

If using +24Vdc, use 22 to 14AWG fused at 2A. For BATT, connect ei-

ther +24Vdc to +A or -24Vdc to -A.

Do so in similar fashion for Feed B connections. Telect strongly recom-

mends dual feeds. Both feeds must use the same nominal voltages.

1. Make sure power is disabled at PDUbefore installing power conductors.*

2. Strip ~12 in. (~12 mm) of insulation.3. If required, lightlycoat conductors with

anti-oxidant compound.4. Back off terminal screw, insert wire,

and then screw tight. Don't overtighten.

* Power at the PDU can be disabled by removing the fuse or turning the circuit breaker off.

MIX 28 Power Connections


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2-8 Telect, Inc. 128877-1 A0

Installing External Alarms

Connect remote external alarm

indicator wires (solid or tinned

wires, #24 to #18 AWG) to the

wire-wrap ALARM pins on the

rear of the MIX 28.

DS1 Cabling

Route the DS1 signals through the wire-wrap pinfields on the front of the

chassis and/or through the rear 64-pin connectors.

NOTE

Internally, the wire-wrap pins on the front are connected directly to the 64-

pin connector on the rear. If you use both front and rear DS1 connections,

remember that each DS1 channel must be connected to one or the other not both.

Telect does not recommend usingboth front and rear DS1 connections on

the same MIX 28 panel.

Wire-Wrap Pinfield (Front Access)

To connect the DS1 signals to the wire-

wrap pins on the front of the chassis

1. Connect 24 AWG cross-connectwire to the pins;

2. Route the wire to the right

through the fanning strip and to a

cable management system;

3. Record designations on the pull-

out designation cards below the patch and monitor jacks.

64-Pin Connectors (Rear Access)

1. Connect two 64-pin male cables1 to the two female connectors

marked DS1 IN and DS1 OUT on the rear of the chassis, as shownin the following illustration.

1. Telect manufactures 64-pin, 24 AWG cables from 1 ft to 999 ft with right-angle Amphenol-style male connectors on both

ends. All cables are shielded and include a shield drain wire. See Accessories, Section 7.

Alarm Pins


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2 Installation

128877-1 A0 Telect, Inc. 2-9

2. Tighten the captive outboard screw on each male connector to se-

cure it to the female connectors on the chassis.

3. Secure each cable to the tie wrap anchor on the chassis using a ca-

ble tie.

NOTES

Prevent ground loopscheck the sites grounding practice standards

before attaching drain wire in the following step.

For a MIX 28 without a SideCar leave at least 2 in. (~50 mm) of slack

cabling between the tie wrap anchors on the MIX 28 and any cable an-

choring points on the rack. This allows just enough cable slack in the

event a SideCar is added at a later time.

4. If desired, connect the shield wires from the 64-pin connectors to

the #6-32 stud labeled DRAIN WIRE.

Shield Wire

Shield Wire


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MIX 28 User Manual

2-10 Telect, Inc. 128877-1 A0

DS3 Cabling

Connect two 75 Ohm BNC ca-

bles to the connectors marked

DS3 IN and DS3 OUT on therear of the chassis, as shown on

the right.

Connect the opposite ends to

either the BNCs on the rear of

the SideCar or to another MIX

28 or other DS3 network ele-

ment:

If interconnecting to the

rear of the SideCar, connect

DS3 IN on the MIX 28chassis to the BNC labeled

I on the SideCar. Likewise,connect DS3 OUT to theBNC labeled O.

If cross-connecting to another MIX 28, connect DS3 IN on the one endto DS3 OUT on the other end. And likewise, DS3 OUT to DS3 IN.

Ethernet or CRAFT Control Cabling

Connect cabling for remote or local MIX 28 control.

If desired, connect an RJ45 cable to the ETHER-NET port on the rear of the panel to manage MIX28 remotely:

If connecting to an Ethernet Hub, use a

straight Ethernet cable.

If connecting directly to a Network Manage-

ment System (NMS) PC, use a crossover Ethernet cable. Config-

ure that network port for half-duplex communications to match that

of the MIX 28.

If desired, connect a male, 9-pin, D-type serial

cable to the CRAFT port on the front of the pan-el to manage MIX 28 locally.

If using a modem, see Connecting/Disconnect-

ing a Modem on Page 2-14.

ETHERNET

CRAFT

15

69


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2 Installation

128877-1 A0 Telect, Inc. 2-11

M13 CARD INSTALLATION

ALERT!

ALERT! To avoid electrostatic discharge, alwayswear a grounding strap

One MIX 28 circuit board is installed behind the M13 door on the front of

the panel. To install an optional, redundant M13 card, proceed as follows:

1. Open the M13 door, shown in the following illustration.

2. Align the card with the card guides and gently insert it into the

chassis by pressing the ejector handle against the card and pushing

the card back.

3. Close the M13 door.

M13 Door

M13 Card


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MIX 28 User Manual

2-12 Telect, Inc. 128877-1 A0

SIDECAR INTERCONNECTIONS

Complete setup procedures for the optional MIX 28 SideCar are provided

in TelectsMIX 28 SideCar User Manual(Publication 128878).

TheMIX 28 SideCar User Manualincludes the installation of a widerange of optional Telect active and passive modules (DNI-3, DSX-3, and

Vector Optical Transport and Protect modules), rear BNC configurations,

along with grounding, power, and alarm connections.

Grounding, power, and alarm connectors are on the rear of all SideCar

chassis. Note that passive modules used without tracer lamps do not require

power.

Grounding SideCar Enclosures

You must ground each SideCar en-closure separately from the

MIX 28.

An #8-32 ground stud with a KEPS

nut is located at the rear of the

SideCar enclosure. Interconnect

the ground stud to the rack or facil-

ity ground using a single-hole

ground lug with an 18 AWG (min.)

wire, as shown in the illustration.

Remember that each SideCar re-quires a separate ground wire.

Connecting Power & Alarms toSideCar

Only active card modules, such as Vector

OTMs, and passive card modules with

tracer lamps, require power. SideCar

provides Side A and Side B positive (+)

and negative (-) spring terminal connec-tors.

Only active card modules, such as Vector

OTMs, have alarm relays that can pro-

vide either normally open or closed

switch states for remote alarm indicators. SideCar provides PWRFAIL, MAJ ALRM, and ALRM COM spring terminal connectors for

Grounding aSideCar Enclosure

-A+A

+B-B

COM

MAJ

PWR

ALARM

20-60VDC

.5 AMP

J2


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2 Installation

128877-1 A0 Telect, Inc. 2-13

active modules. (Normally open vs normally closed states are depen-

dent on the Vector module.)

A seven-position spring terminal block is located at the rear of the SideCar

enclosure. Each position accommodates a 24 AWG to 16 AWG stranded or

solid copper wire. (Stranded wire should be tinned.)

For a -48Vdc card module, connect -48Vdc fused a A to the -A termi-nal and RTN to +A.

For a 24Vdc card module, connect either -24Vdc to the -A terminal(for -24Vdc BATT) or +24Vdc to +A (for +24Vdc BATT). Fuse theBATT feed at A.

To connect wires to spring terminal connectors, first strip about 3/8 in. (~10

mm) of insulation and then use a 1/8-in. (~3 mm) flat tipped screwdriver to

open the spring before inserting the wire. Remove the screwdriver to cinch

the wire.

Always route power and alarm cables separately from signal cables. Use

cable tie or lacing where required, in accordance with standard operating

company practices.

Connecting Power to SideCar Enclosure


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MIX 28 User Manual

2-14 Telect, Inc. 128877-1 A0

MODEM SETUP

If desired, setup a modem on the RS-232 port labeled CRAFT on the frontof the MIX 28.

Enabling a Modem

NOTE

Connecting a modem has the effect of disconnecting the local serial CID

interface. Serial CID control comes from a remote site through the modem

connection.

A modem will not work with the MIX 28 until the Modem Detect field

on the System Interfaces screen has been set to Enabled. See To Set

Modem Detect on Page 4-16 before beginning this procedure.

The MIX 28 modem automatically detects the baud at the MIX 28 serial

port; there is no need to set or change the rate.

1. Log in to the MIX 28. (See Logging In on Page 4-11.)

2. Access the System Interfaces screen and set the Modem Detect

field to Enabled.

3. Log out. (See Logging Out on Page 4-12.)

4. Set up the MIX 28 modem:

a. Connect the modem serial port to the MIX 28 serial port with a

null modem cable.

b. Connect the modem to a phone line.

c. Power up the modem.

5. Press and hold the ACO switch until the LED test starts (all LEDs

light), then release.

This causes an LED test and resets the ACO, as described in Test-

ing LEDs and Resetting the ACO on Page 3-1.

The MIX 28 modem is ready to communicate with a remote-site modem

when a remote modem calls in to establish a link. When the remote modem

establishes communication with the MIX 28, the user at the remote end can

log into the system. See Logging In on Page 4-11

The login screen does not appear automatically at the remote site. Press the

Enter key at the remote site to access the login screen.
http://mix%2028-4.pdf/http://mix%2028-4.pdf/http://mix%2028-4.pdf/http://mix%2028-4.pdf/http://mix%2028-3.pdf/http://mix%2028-3.pdf/http://mix%2028-4.pdf/http://mix%2028-3.pdf/http://mix%2028-3.pdf/http://mix%2028-4.pdf/http://mix%2028-4.pdf/http://mix%2028-4.pdf/http://mix%2028-4.pdf/http://mix%2028-4.pdf/


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2 Installation

128877-1 A0 Telect, Inc. 2-15

Disabling a Modem

1. Log out at the remote modem.

2. Break the communication link by hanging up at the remote modem.

3. Disconnect the MIX 28 modem from the serial port.

4. Connect the MIX 28 serial port to the local PC.

5. Press and hold the ACO switch until the LED test starts, then re-

lease.

This causes an LED test and resets the ACO, as described on

Page 3-1.

6. Login to the MIX 28.

7. Access the System Interfaces screen and set the Modem Detect

field to Disabled.
http://mix%2028-3.pdf/http://mix%2028-3.pdf/


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128877-1 A0 Telect, Inc. 3-1

3 User FunctionsTHE ALARM CUTOFF/LAMP BUTTON

Each system has an Alarm Cutoff (ACO)/Lamp Button located on the LED

panel that disables the external alarm contacts and tests the LEDs.

Disabling AlarmsTo disable the external alarm contacts, press and release the button marked

ACO SW.

The ACO LED lights and alarms are disabled for the length of time speci-

fied in the System Settings screen of the Craft interface1 or through SNMP.

Testing LEDs and Resetting the ACO

1. To test the LEDs, press and hold the button marked ACO SW forthree seconds:

All LEDs on panel, except for CRT and MAJ, change to amber;

CRT and MAJ change to red;

Active M13 card Status LED cycles between green and amberat one cycle per second;

Active STATUS LED on the M13 door is amber (no blinking)2;

and

The ACO sets.

1. See Specifying System Settings & M13 Card Functions on Page 4-13.

2. This is the only time that the STATUS LED on the M13 door differs from that of the Status LED on the M13 card.

CRAFT

MAINT

STATUS

ACO

SW ACO LS HS

MNR MAJ CRT

STATUS


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MIX 28 User Manual

3-2 Telect, Inc. 128877-1 A0

2. To end the test and return the LEDs to their previous state, release

ACO SW. Since the ACO has been activated by this test, the ACOLED stays on.

3. If you need to enable the external alarms, go to Screen 16 and dis-

engage the ACO. (See Viewing Alarms on Page 4-39.)

DSX OPERATION

DSX functions include cross-connecting circuits with other network ele-

ments, rerouting traffic with patch cords, and nonintrusive monitoring.

Patching Signals

If you need to perform network maintenance or emergency patch-arounds,

you can reroute incoming and outgoing lines by making temporary connec-

tions using either two single patch cords or a dual patch cord. Patching isservice-affecting, and the circuit is briefly interrupted while setting up and

taking down the patch.

To Patch with Two Single PatchCords

1. Insert a single patch cord into

the I (In) jack of the firstmodule.

2. Insert the other end into the

O (Out) jack of the module.

3. Insert another single patch

cord into the O (Out) jack ofthe first module.

4. Insert the other end of the patch cord into the I (In) jack of the sec-ond module.

To Patch with a Dual PatchCord

1. Insert a dual patch cord intothe I (In) and O (Out) portsof the first jack module.

2. Rotate the plug on the other

end of the cord 180 degrees

(so that it is turned upside

down from the first end) and

CROSS-CONNECT WITHTWO SINGLE PATCH CORDS

Firstjack

module

Secondjack

module

M

O

I

M

O

I

FirstJack

Module

M

O

I

M

O

I

SecondJack

Module

CROSS-CONNECTWITH DUAL PATCH CORD


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3 User Functions

128877-1 A0 Telect, Inc. 3-3

insert it into the I (In) and O (Out) ports of the second jack module.

Monitoring Signals

You can perform nonintrusive signal monitoring by connecting your circuit

monitoring device to the front monitor jack (labeled M) of the signal youwish to monitor.

MODEM OPERATION

You can connect a modem to the MIX 28 serial port to control the system

remotely over an analog phone line. To do so, you must set the Modem

Detect field on the System Interfaces screen to Enabled and install the

modem according to the instructions on Page 2-14. When you have done

so, activate the modem by pressing and holding the ACO switch until allLEDs light (LED test), then release the switch.

If you set Modem Detect to Enabled, but you have a PC rather than a mo-

dem connected to the MIX 28 serial port, the modem detect code

+++ATQ appears on the screen at the current location of the cursor when

you release the ACO switch. To clear the +++ATQ, switch to another

MIX 28 screen.

The modem automatically detects the baud at the MIX 28 serial port when

the modem is off-line. Once the modem is on-line, it will not change its

baud. If you change the MIX 28 baud (System Interfaces screen) while the

modem is on-line, you create a baud mismatch between the MIX 28 and

modem, which shuts down the connection. The only way to regain the con-

nection is to hang up at the remote modem, press the ACO switch until

the LED test starts, release the switch, and re-establish the link from the re-

mote end.

To disconnect a modem, see the instructions on Page 2-15.
http://mix%2028-2.pdf/http://mix%2028-2.pdf/http://mix%2028-2.pdf/http://mix%2028-2.pdf/


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4 Software Operation

MANAGING A SYSTEM

You can configure, test, and monitor a system using these interfaces:

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Telect MIX 28

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