Paradyne Compshere 3000, COMSPHERE 3000 Installation Manual
COMSPHERE
3000 SERIES CARRIER
INSTALLATION MANUAL
Document No. 3000-A2-GA31-D0
July 1999
COMSPHERE 3000 Series Carrier
COMSPHERE
3000 Series Carrier
Installation Manual
3000-A2-GA31-D0
14th Edition (July 1999)
Changes and enhancements to the product and to the information herein will be documented and issued as a new release.
Warranty, Sales, Service, and Training Information
Contact your local sales representative, service representative, or distributor directly for any help needed. For additional information
concerning warranty, sales, service, repair, installation, documentation, training, distributor locations, or Paradyne worldwide office
locations, use one of the following methods:
• Internet: Visit the Paradyne World Wide Web site at www.paradyne.com. (Be sure to register your warranty there. Select
Technical Support → Warranty Registration.)
• Telephone: Call our automated system to receive current information by fax or to speak with a company representative.
— Within the U.S.A., call 1-800-870-2221
— Outside the U.S.A., call 1-727-530-2340
Document Feedback
We welcome your comments and suggestions about this document. Please mail them to Technical Publications, Paradyne Corporation,
8545 126th Ave. N., Largo, FL 33773, or send e-mail to userdoc@paradyne.com. Include the number and title of this document in
your correspondence. Please include your name and phone number if you are willing to provide additional clarification.
Trademarks
All products and services mentioned herein are the trademarks, service marks, registered trademarks or registered service marks of their
respective owners.
Printed on recycled paper
COPYRIGHT 1999 Paradyne Corporation. All rights reserved.
This publication is protected by federal copyright law. No part of this publication may be copied or distributed, transmitted, transcribed, stored in a retrieval system,
or translated into any human or computer language in any form or by any means, electronic, mechanical, magnetic, manual or otherwise, or disclosed to third parties
without the express written permission of Paradyne Corporation, 8545 126th Avenue North, P.O. Box 2826, Largo, Florida 33779-2826.
Paradyne Corporation makes no representation or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability
or fitness for a particular purpose. Further, Paradyne Corporation reserves the right to revise this publication and to make changes from time to time in the contents
hereof without obligation of Paradyne Corporation to notify any person of such revision or changes.
A July 1999 3000-A2-GA31-D0
!
Important Safety Instructions
1. Read and follow all warning notices and instructions marked on the product or included in the
manual.
2. This product is intended to be used with a 3-wire grounding type plug – a plug which has a
grounding pin. This is a safety feature. Equipment grounding is vital to ensure safe operation.
Do not defeat the purpose of the grounding type plug by modifying the plug or using an
adapter.
Prior to installation, use an outlet tester or a voltmeter to check the ac receptacle for the
presence of earth ground. If the receptacle is not properly grounded, the installation must not
continue until a qualified electrician has corrected the problem.
If a 3-wire grounding type power source is not available, consult a qualified electrician to
determine another method of grounding the equipment.
The dc configuration of this product is to be grounded by connecting an external wire
between the building ground and the equipment ground screw on the rear of the power supply
assembly. Consult a qualified electrician to ensure that the ground connections are connected.
3. Slots and openings in the cabinet are provided for ventilation. T o ensure reliable operation of
the product and to protect it from overheating, these slots and openings must not be blocked
or covered.
Important Information
4. Do not allow anything to rest on the power cord and do not locate the product where persons
will walk on the power cord.
5. Do not attempt to service this product yourself, as opening or removing covers may expose
you to dangerous high voltage points or other risks. Refer all servicing to qualified service
personnel.
6. General purpose cables are provided with this product. Special cables, which may be required
by the regulatory inspection authority for the installation site, are the responsibility of the
customer.
7. Install carriers while still empty. Start at the bottom of the cabinet and work up.
8. When installed in the final configuration, the product must comply with the applicable Safety
Standards and regulatory requirements of the country in which it is installed. If necessary,
consult with the appropriate regulatory agencies and inspection authorities to ensure
compliance.
9. A rare phenomenon can create a voltage potential between the earth grounds of two or more
buildings. If products installed in separate buildings are interconnected, the voltage potential
may cause a hazardous condition. Consult a qualified electrical consultant to determine
whether or not this phenomenon exists and, if necessary, implement corrective action prior to
interconnecting the products.
10. In addition, if the equipment is to be used with telecommunications circuits, take the
following precautions:
– Never install telephone wiring during a lightning storm.
– Never install telephone jacks in wet locations unless the jack is specifically designed for
wet locations.
– Never touch uninsulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface.
– Use caution when installing or modifying telephone lines.
– Avoid using a telephone (other than a cordless type) during an electrical storm. There may
be a remote risk of electric shock from lightning.
– Do not use the telephone to report a gas leak in the vicinity of the leak.
B3000-A2-GA31-D0 July 1999
COMSPHERE 3000 Series Carrier
Notices Regarding Telecommunications Equipment
THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPL Y WITH THE LIMITS FOR A CLASS A DIGITAL DEVICE,
PURSUANT TO PART 15 OF THE FCC RULES. THESE LIMITS ARE DESIGNED TO PROVIDE REASONABLE
PROTECTION AGAINST HARMFUL INTERFERENCE WHEN THE EQUIPMENT IS OPERATED IN A COMMERCIAL
ENVIRONMENT. THIS EQUIPMENT GENERATES, USES, AND CAN RADIATE RADIO FREQUENCY ENERGY AND, IF
NOT INSTALLED AND USED IN ACCORDANCE WITH THE INSTRUCTION MANUAL, MAY CAUSE HARMFUL
INTERFERENCE TO RADIO COMMUNICATIONS. OPERATION OF THIS EQUIPMENT IN A RESIDENTIAL AREA IS
LIKELY TO CAUSE HARMFUL INTERFERENCE IN WHICH CASE THE USER WILL BE REQUIRED TO CORRECT THE
INTERFERENCE AT HIS OWN EXPENSE.
THE AUTHORITY TO OPERATE THIS EQUIPMENT IS CONDITIONED BY THE REQUIREMENTS THAT NO
MODIFICATIONS WILL BE MADE T O THE EQUIPMENT UNLESS THE CHANGES OR MODIFICA TIONS ARE EXPRESSL Y
APPROVED BY PARADYNE.
Canada
Notice to Users of the Canadian Public Switched Telephone Network
The Canadian Department of Communications label identifies certified equipment. This
certification means that the equipment meets certain telecommunications network protective,
operational and safety requirements. The Department does not guarantee the equipment will
operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to be connected to the
facilities of the local telecommunications company. The equipment must also be installed using an
acceptable method of connection. In some cases, the company’s inside wiring associated with a
single line individual service may be extended by means of a certified connector assembly
(telephone extension cord). The customer should be aware that compliance with the above
conditions may not prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility
designated by the supplier. Any repairs or alterations made by the user to this equipment, or
equipment malfunctions, may give the telecommunications company cause to request the user to
disconnect the equipment.
C July 1999 3000-A2-GA31-D0
United Kingdom
Important Information
Users should ensure for their own protection that the electrical ground connections of the power
utility, telephone line and internal metallic water pipe system, if present, are connected together.
This precaution may be particularly important in rural areas.
CAUTION
Users should not attempt to make such connections
themselves, but should contact the appropriate electric
inspection authority, or electrician, as appropriate.
The Load Number for this equipment is listed on a label on the device. The Load Number (LN)
assigned to each terminal device denotes the percentage of the total load to be connected to a
telephone loop which is used by the device to prevent overloading. The termination on a loop may
consist of any combination of devices subject only to the requirement that the total of the Load
Numbers of all devices does not exceed 100.
Ringer Equivalence Number
The Ringer Equivalence Number (REN) is a customer guide indicating approximately the
maximum number of items of apparatus that should be connected simultaneously to the telephone
line. The sum of the RENs should not exceed four. This value includes any BT-provided
instrument which may be assumed to have a REN of 1 unless marked otherwise. The REN of this
apparatus is 1.
Connection to Leased Lines
If any other apparatus, including cable or wiring, is connected between the apparatus and the point
of connection to any speechband circuit, then all that other apparatus shall comply with the
following:
1. The overall transmission characteristics of all that other apparatus shall be such as to
2. All that other apparatus shall comprise only:
introduce no material effect upon the electrical conditions presented to one another by the
apparatus and the speechband circuit; and
(i) apparatus approved for the purpose of connection between the apparatus and a
speechband circuit; and
(ii) cable or wiring complying with a code of practice for the installation of equipment
covered by this part of BS 6328 or such other requirements as may be applicable.
No d.c. interaction is intended between the apparatus and the telephone network.
D3000-A2-GA31-D0 July 1999
COMSPHERE 3000 Series Carrier
All European Countries
Safety Notice
Interconnection circuits between a modem and any other equipment should be such that the
equipment continues to comply with the requirements of EN41003 for TNV (T elephone Network
Voltage) circuits and EN60950 for SELV (Safety Extra Low Voltage) circuits after making
connection between circuits.
Japan
Notices
This equipment is classified in the 1st Class category. When used in a residential
area or in an adjacent area thereto, radio interference may be caused to radios and
TV receivers, etc. VCCI-1*
Restrictions
Due to JATE (Japan Approvals Institute for Telecommunications Equipment) regulations, only
3 attempts to dial a number are permitted in a 3-minute period. If a fourth attempt is made to dial
the same number, the modem returns the ERROR return code. This restriction applies to the
number dialed from the command line or from a directory. An occurrence of the restriction is
canceled when a different number is dialed, or when 3 minutes have elapsed.
Equipment W arranty and Support
If you experience trouble with this equipment, please contact your sales or service representative
(as appropriate) for repair or warranty information. If the product needs to be returned to the
company service center for repair, contact them directly for return instructions using one of the
following methods:
• Internet: V isit the Paradyne World Wide Web site at www.paradyne.com.
• Telephone: Call our automated call system to receive current information via fax or to speak
with a company representative.
— Within the U.S.A., call 1-800-870-2221
— Outside the U.S.A., call 1-727-530-2340
If the trouble is causing harm to the telephone network, the telephone company may request that
you remove the equipment from the network until the problem is resolved.
E July 1999 3000-A2-GA31-D0
Table of Contents
Preface
About This Document v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Document Contents v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Document Ordering Information v. . . . . . . . . . . . . . . . . . . . . . . . . . . .
1. Introduction
Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Carrier Components 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. Cabinet Unpacking and Setup
Overview 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Presetup Inspection 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unpacking the Cabinet 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinet Setup 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. Installing the Carrier and Assembly Components
Overview 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Standard Carrier Equipment 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other Carrier Equipment 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preinstallation Inspection 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Considerations 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Positioning the Mounting Brackets 3-4. . . . . . . . . . . . . . . . . . . . . . . . . .
Carrier Installation 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SDCP Installation 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Transformer Unit Installation 3-8. . . . . . . . . . . . . . . . . . . . . . . . .
Fan Module Installation 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the SDCP 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speaker Panel Installation 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SGRD/FGRD Connection 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alarm Output Connection 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dial Modem Control Interface 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SDU Installation 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NMS Connection 3-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
i3000-A2-GA31-D0 July 1999
COMSPHERE 3000 Series Carrier
4. T1 Auxiliary Backplane
5. Connecting to the Network
T1 Auxiliary Backplane Installation 4-1. . . . . . . . . . . . . . . . . . . . . . . . .
T1 CSU and T1 DSU/CSU Network Interface 4-5. . . . . . . . . . . . . . . . .
T1 CSU DTE Port 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T1 DSU/CSU DTE Ports 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SNMP LAN Adapter Connectivity 4-5. . . . . . . . . . . . . . . . . . . . . . . . . .
T1 COM Port Connection to an External PC 4-6. . . . . . . . . . . . . . . . . . .
Overview 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Device Arrangements in the Carrier 5-1. . . . . . . . . . . . . . . . . . . . . . . . .
Interface Connectors 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Interface Module (NIM) Connectors 5-4. . . . . . . . . . . . . . . . .
NIM Installation 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. Circuit Card Installation
Overview 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preinstallation Inspection 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before You Begin 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modular Circuit Card Interface Connectors 6-2. . . . . . . . . . . . . . . . . . .
Modular Circuit Card Installation 6-6. . . . . . . . . . . . . . . . . . . . . . . . . . .
Filler Panel Installation 6-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ferrite Choke Installation 6-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A. Pin Assignments
Overview A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital/Lease Network Connections A-1. . . . . . . . . . . . . . . . . . . . . . . . .
NIM Interface Connections A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NMS Interface Connections A-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
50-Pin Modular Plugs A-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Carrier Backplane Connectors A-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D-Lead Control Interface A-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii July 1999 3000-A2-GA31-D0
B. T1 CSU and T1 DSU/CSU Interface Connectors
Overview B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T1 Auxiliary Backplane Connectors B-1. . . . . . . . . . . . . . . . . . . . . . . . .
T1 Network Interface Connector B-3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
DSX-1 Port DTE Interface B-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COM Port Interface B-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Port Interfaces B-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Channel Extension Cable B-10. . . . . . . . . . . . . . . . . . . . . . . . .
External Clock Connector B-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C. Technical Specifications
D. Equipment List
Document Ordering Information D-1. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment List D-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents
Glossary
Index
iii3000-A2-GA31-D0 July 1999
COMSPHERE 3000 Series Carrier
This page intentionally left blank.
iv July 1999 3000-A2-GA31-D0
Preface
About This Document
This document contains installation information for the
COMSPHERE 3000 Series Carrier and is designed to be
used with:
• Data Service Units (DSUs): Models 3511, 3551,
3611, and 3616
• Data Backup Modules (DBMs): Model 3611
• Dial/lease modems: Models 3811, 381 1Plus (3981),
3821Plus, 3911, and 3921Plus
• T1 Channel Service Units (CSUs): Model 3151
• T1 DSU/CSUs: Model 3161
Refer to the appropriate device manual for specific unit
installation and operation information. It is assumed that
you are familiar with the functional operation of data
equipment, digital network services, DSUs, and dial/lease
modems.
Document Contents
Chapter 1 provides descriptive information about the
COMSPHERE 3000 Series Carrier and optional features.
Chapter 2 lists the steps for cabinet unpacking, setup,
and installation.
Chapter 3 provides descriptive information and
procedures for installing the:
• Shared Diagnostic Control Panel (SDCP)
• Power supply
• Fan module
• Speaker panel
• Network Interface Module (NIM)
• Shared Diagnostic Unit (SDU)
• DSU
• Dial/lease modem
• Ferrite chokes.
Chapter 4 includes T1 CSU and T1 DSU/CSU
auxiliary backplane installation procedures.
Chapter 5 presents details regarding connecting to the
network.
Chapter 6 provides circuit card installation procedures.
Appendix A provides pin assignments.
Appendix B includes T1 CSU and T1 DSU/CSU
interface connections.
Appendix C presents technical specifications.
Appendix D includes related documents and an
equipment list.
The Glossary provides definitions for acronyms and
product-specific terms used in this manual.
Document Ordering
Information
For a list of related documents, see T able D-1 in
Appendix D, Equipment List.
v3000-A2-GA31-D0 July 1999
COMSPHERE 3000 Series Carrier
vi July 1999 3000-A2-GA31-D0
Introduction
Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Carrier Components 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
Overview
The COMSPHERE 3000 Series Carrier assembly,
Figure 1-1, supports high-density mounting of the
following Paradyne products in a central-site
environment:
• Channel Service Units (T1 CSUs)
• Data Service Units/Channel Service Units
(T1 DSU/CSUs)
• Data Service Units (DSUs)
• Dial Backup Modules (DBMs)
• Time Division Multiplexer (TDM)
• Multichannel Multipoint Multiplexer (MCMP)
• Dial/Lease Modems
Figure 1-1. COMSPHERE 3000 Series Carrier
496-12291-04
1-13000-A2-GA31-D0 July 1999
COMSPHERE 3000 Series Carrier
Carrier Components
The carrier assembly is shipped with a power
transformer unit. Refer to Equipment List (T able D-2) in
Appendix D for details. Other carrier components are
ordered separately:
• Power transformer unit. Provides low voltage
ac power to the carrier’s internal power distribution
bus.
• –48 Vdc Central Office (CO) Power Unit. For
carriers designed to operate from a –48 Vdc power
unit. Consists of a single dc power module with a
fan and operates in Basic mode. An optional second
power module is available for the CO Power Unit.
• Fan module. Provides forced air cooling to
dissipate heat generated within the carrier. It is
recommended that fully configured carriers and
cabinets have fan modules installed to extend the
life of the equipment.
• Shared Diagnostic Control Panel (SDCP).
Required for initial installation and testing of the
devices and their options. In conjunction with the
SDU, allows up to eight carriers to be managed
from one control panel.
• Network Interface Modules (NIMs). Provides the
dial, ISDN, or switched 56 kbps digital service
interface for DSUs, DBMs, and dial/lease modems.
• Shared Diagnostic Unit (SDU). Provides the
required interface that daisy chains carriers together
for network management system (NMS) and/or
SDCP control. In a cabinet configuration,
connectivity between the units in the individual
slots allows control of compatible units in the
carrier. The control can be a single NMS interface,
a single SDCP, or both.
• T1 auxiliary backplane(s). Provides an interface
between a T1 digital network and customer
provided equipment (CPE).
• Rear connector plate(s). Provides the interface
between DSUs, DBMs, and dial/lease modems and
the DTEs.
• Connector module(s). Provides the interface
between DSU/TDMs or DSU/MCMPs and the
DTEs.
• Filler panel(s). Prevents accidental contact with
backplane connectors. Required for unfilled slots in
the carrier.
• Speaker panel. Provides audio monitoring of
dial/lease modems. Allows the user to hear audio
signals (ringing, busy signal) during normal
operation.
1-2 July 1999 3000-A2-GA31-D0
Cabinet Unpacking and Setup
Overview 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Presetup Inspection 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unpacking the Cabinet 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinet Setup 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leveling the Cabinet 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reversing the Cabinet Doors 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
Overview
Paradyne provides a COMSPHERE 72-inch high
cabinet for mounting the COMSPHERE 3000 Series
Carriers. Up to six carriers can be mounted into a single
cabinet. Alternatively, you can mount carriers into other
commercial EIA standard 19-inch and 23-inch wide
cabinets.
When shipped:
• Cabinets are packed in cardboard shipping
containers secured to wooden pallets.
• The shipping containers are bound with plastic
straps.
• Inside the shipping container, the cabinet itself is
strapped to the wooden pallet with plastic straps.
There is minimal clearance between the cabinet and the
shipping container, and the cabinet frame is not wrapped
in packing material.
Presetup Inspection
Before opening the shipping container, inspect it for
signs of damage. Specific signs to check for are:
• Major tears or puncture holes on the sides of the
container
• Splits in the seams
• Corner damage or any additional signs of the
container having been dropped
Unpacking the Cabinet
" Procedure
1. Use a utility knife to cut all plastic straps
surrounding the shipping container.
2. Cut around the base of the container to unpack the
cabinet. Do not cut along the container’s seams.
Doing so may damage the cabinet because of the
lack of clearance. Lift the container off the
cabinet.
NOTE
If your ceilings do not provide
enough clearance to lift the
container, tip the container and
cabinet sideways. You will need
another person to help you tip
the container and cabinet, and
pull the container off.
3. Once the container is off, cut the plastic straps
holding the cabinet frame to the pallet.
4. Remove the packing material at the base of the
cabinet and use a large dolly to lift and move the
cabinet to its desired location.
If the shipping container does show signs of damage,
report this immediately to your shipping representative
and also to your service representative.
2-13000-A2-GA31-D0 July 1999
COMSPHERE 3000 Series Carrier
Cabinet Setup
The cabinet is shipped with the following:
• Doors (two)
• Mounting rails
• T wo factory-installed ac power strips
Cabinet setup requirements consist of:
• Leveling the cabinet once it is in place at your site
and, if needed
• Reversing the cabinet doors
Leveling the Cabinet
There are four adjustable leveling feet at the bottom of
the cabinet; these screw up or down, enabling you to
adjust the cabinet to a level position on the floor.
The required tools are a level and an adjustable
crescent wrench.
" Procedure
Reversing the Cabinet Doors
The cabinet’s front and back hinged doors are installed
on the cabinet frame at the factory to open left-to-right. T o
reverse the doors, use the pre-drilled holes on the opposite
side of the frame.
" Procedure
1. Supporting the door, use a flat-blade screwdriver
to remove the screws from the bottom hinge,
detaching the hinge from the cabinet frame.
2. Supporting the door, remove the screws from the
top hinge, detaching the hinge and the door from
the cabinet frame.
3. Flip the door end-over-end.
4. Holding the door in position on the opposite side,
align the hinge holes with the predrilled holes on
the cabinet frame provided for this purpose. Then,
use the same screws to reattach the door by its
hinges to the cabinet.
1. Place the level against the front door and adjust
the leveling feet until the cabinet stands level
vertically from front to rear.
2. Place the level against one cabinet side and adjust
the leveling feet until the cabinet stands level
vertically from side to side.
496-14890
2-2 July 1999 3000-A2-GA31-D0
Installing the Carrier and
Assembly Components
Overview 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Standard Carrier Equipment 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other Carrier Equipment 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preinstallation Inspection 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Considerations 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Positioning the Mounting Brackets 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Carrier Installation 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing a Carrier With Threaded Screw Holes 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing a Carrier Without Threaded Screw Holes 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SDCP Installation 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the SDCP Ribbon Cable 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Transformer Unit Installation 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fan Module Installation 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the SDCP 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Testing the SDCP 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speaker Panel Installation 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Testing the Speaker Panel 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SGRD/FGRD Connection 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alarm Output Connection 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dial Modem Control Interface 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SDU Installation 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SDU Modular Jacks and DIP Switches 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SDU CC/DC Operation 3-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the SDU 3-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SDU Front Panel Connection 3-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Testing the SDU 3-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NMS Connection 3-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the NMS 3-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
3-13000-A2-GA31-D0 July 1999
COMSPHERE 3000 Series Carrier
Overview
The COMSPHERE 3000 Series Carrier is a metal
enclosure that has seventeen slots for installing circuit
cards. The Shared Diagnostic Unit (SDU) uses Slot 0; the
other sixteen slots are for devices. This number is reduced
by one slot for:
• Dial/lease multiport modems, which occupy two
slots.
• DSU with MUX card. The MUX card for TDM or
MCMP is physically attached to a DSU, and the
two cards occupy two slots.
• Digital bridge applications, where each DBM-X
also occupies a separate slot.
Standard Carrier Equipment
Each carrier is shipped with the items listed below
bundled in a plastic bag:
• Six cable ties
• T wo fuses (spares)
• Four #10-32 mounting screws
• Four cabinet #12-24 mounting screws and four
speed nuts for use with other cabinets
• One jumper wire for the frame ground/signal
ground
In addition, the carrier is shipped with a power cord
and power transformer unit. Figure 3-1 shows a fully
loaded carrier.
3000 Series
Carrier
Slot Numbers
SDU 1
Shared Diagnostic
21516
3000
Control Panel
(SDCP)
SDU
Slot 0
Circuit
Card
Captive
Screws
Brackets Set for
19-Inch Cabinet
AC Power
Transformer
Unit
Fan Module
(optional)
496-13596-05
Figure 3-1. 3000 Series Carrier and Components
3-2 July 1999 3000-A2-GA31-D0
Installing the Carrier and Assembly Components
Other Carrier Equipment
You are responsible for ordering/supplying the
following equipment:
• COMSPHERE 72-inch high cabinet, or other EIA
standard 19- or 23-inch wide cabinet
• Fan module(s), if needed
• Shared Diagnostic Control Panel (SDCP)
• Shared Diagnostic Unit (SDU), if needed
• DTE interface assembly, if needed
• Alarm buzzer or light
• One or two Network Interface Modules (NIMs), if
needed
• Connector modules
• Speaker panel, if needed
• One network interface cable for each of the DSUs
or modems
• TDM, MCMP, and/or digital bridge interface
cables, if needed
• Connecting cables and cords
• Rear connector plates for optional pre-mounting;
modular devices are packaged with rear connector
plates. You can also order rear connector plates
separately
• Power transformer unit. Ensure that the unit has
not been damaged, possibly causing a short circuit
of internal components. Tighten any screws that
may have worked loose.
• Shared Diagnostic Control Panel (SDCP).
Inspect the SDCP and its cable.
• Shared Diagnostic Unit (SDU). Check the SDU
for physical damage. Ensure that the circuit card
and faceplate are not damaged.
• Speaker panel. Check the speaker, speaker jack,
and panel for physical damage.
If any of your equipment shows signs of shipping
damage, report this immediately to your shipping and
service representatives.
Installation Considerations
Before installing your carrier, make sure:
• Your installation site is well-ventilated, clean, and
free of environmental extremes.
• You have 2 to 3 feet clearance at the front and rear
of the cabinet for installing the following:
— DTE cables
— Fan module
— Network interface connectors
• Filler panels for empty slots
• T1 auxiliary backplane(s), if needed
• Devices, including DSUs and CSUs
• Applicable manuals. Appendix D contains a related
documents list and equipment list.
Preinstallation Inspection
When your equipment arrives, perform an inspection:
• Carrier. Remove the carrier from its shipping
container and check for physical damage (refer to
Chapter 2).
• Fan module. Check for physical damage, such as
broken blades. Spin fan blades manually to test for
damage.
— Rear connector plates or connector modules
— SDCP (optional)
You will need the following tools:
• A large Phillips screwdriver to install a:
— Carrier in the cabinet
— Power transformer unit under the carrier
• A small, flat-blade screwdriver for:
— Removing and replacing the cover plate or
SDCP
— Installing the 50-pin cable connectors
3-33000-A2-GA31-D0 July 1999
COMSPHERE 3000 Series Carrier
Positioning the Mounting
Brackets
The carrier has reversible mounting brackets, which
allow installation in cabinets that are either 19 inches or
23 inches wide. The brackets:
• Are initially positioned for installation into a
19-inch cabinet.
• Must be reversed on the carrier for installation into
an EIA standard 23-inch wide cabinet.
.67"
6.00"
T o reverse the mounting brackets:
" Procedure
1. Remove the screws that attach them to the sides of
the carrier.
2. Reverse the brackets and replace the screws.
Carrier Installation
HANDLING PRECAUTIONS
FOR
ST ATIC-SENSITIVE DEVICES
This product is designed to protect
sensitive components from damage
due to electrostatic discharge (ESD)
during normal operation. When
performing installation procedures,
however, take proper static control
precautions to prevent damage to
equipment. If you are not sure of the
proper static control precautions,
contact your nearest sales or service
representative.
19-Inch Cabinet 23-Inch Cabinet A
6.52"
23-Inch Cabinet B
496-12293-04
One COMSPHERE 72-inch cabinet can hold up to six
carriers; however, a cabinet does not need to be fully
populated. Follow these rules during installation.
• Install carriers from the bottom of the cabinet and
work up. This provides the following:
— Proper alignment for subsequent carriers.
— Easier installation since the carriers can be
lowered onto the mounting screws from above.
— Convenient connection of the DTE interface.
— Proper cabinet balance. Bottom-up installation
keeps the cabinet from becoming top heavy.
• Install empty carriers in the cabinet.
3-4 July 1999 3000-A2-GA31-D0
Installing the Carrier and Assembly Components
Installing a Carrier With
Threaded Screw Holes
" Procedure
1. Place the carrier against the front rails at the
bottom of the cabinet to determine where the two
lower machine screws should be installed. Then,
set the carrier aside.
496-14763-01
The carrier cabinet may or may not have threaded
screw holes.
If the cabinet . . .
Has threaded
screw holes
Does not have
threaded screw
holes
Use the short Phillips-head screws
included in the hardware package
and follow the procedure in
Installing a Carrier With Threaded
Screw Holes
Use the self-retaining nuts and the
longer Phillips-head screws
included in the hardware package
and follow the procedure in
Installing a Carrier Without
Threaded Screw Holes
.
3-6
Then . . .
in the next section
Install
First
on page
Front Rail
7th Hole
Front of 19-inch Carrier Cabinet
.
2. Use a screwdriver to install the two screws loosely
enough to allow the bracket keyholes to drop
Mounting
Bracket
Keyhole
496-12294-02
under the screw heads during installation.
3. Place the carrier against the front rails of the
cabinet again, allowing the installed machine
screws to pass through the keyholes.
4. Lower the carrier into place, allowing the
keyholes to slide under the screw heads.
NOTE
Installing the carrier may be a
two-person task. One person
holds the carrier in proper
alignment, and one person
installs the screws.
This positions the carrier correctly for installation
of the two remaining machine screws and helps
support its weight during installation of these
screws.
5. Install the two remaining machine screws at the
top corners of the carrier and tighten all four.
6. Install the next carrier in the same manner (from
the bottom up) using Steps 1 through 5.
3-53000-A2-GA31-D0 July 1999
COMSPHERE 3000 Series Carrier
Installing a Carrier Without
Threaded Screw Holes
" Procedure
1. Position the carrier in the cabinet and determine
the front rail holes to be used.
2. Slip a self-retaining nut (Speed Nut) onto each rail
hole selected and align the hole of the nut with the
hole in the rail.
3. Line the carrier mounting bracket up with the
self-retaining nut, and turn the screw into the
carrier mounting bracket and the nut. Start all four
screws, then tighten all four until each screw head
is flush with the carrier and the carrier is securely
mounted in the cabinet.
Front Rail
7th Hole
Mounting
Bracket
SDCP Installation
An SDCP can control up to eight carriers containing:
• Up to 128 compatible T1 CSUs, T1 DSU/CSUs,
DSUs, or dial/lease modems, or
• A reduced number when TDMs, MCMPs, DBMs,
or dial/lease multiport modems are also installed.
Carrier Slots 1–16
SDU12345678910111213141516
Select
OK Alarm BckUpTest EC
Select
Key
Status
Indicators
If your configuration has two or more carriers, an SDU
is also required in each carrier to connect the SDCP
interface from carrier to carrier. Refer to the SDU
Installation section, page 3-16.
The following table defines the SDCP status indicators.
F1 F2 F3
Keypad
COMSPHERE 3000
LCD
Display
496-12348a-03
Speed Nut
Screw
Keyhole
Front of 19-inch Carrier Cabinet
496-12294a-02
4. Install the next carrier in the same manner (from
the bottom up) using Steps 1 through 3.
Label
Color Description
OK green Health and status indicator for the
selected device. Mirrors the OK
indicator on the faceplate, except for
dial/lease modems, where OK
replaces the power indicator.
Alarm red Health and status indicator for the
selected device. Mirrors the Alrm
indicator.
BckUp yellow Mirrors the Dial indicator on the
selected device. Not used for
T1 CSUs and T1 DSU/CSUs.
Test yellow Mirrors the Test indicator on the
selected device.
EC green Error Correction indicator for dial/
lease modems. Not applicable for
other devices.
3-6 July 1999 3000-A2-GA31-D0
Installing the Carrier and Assembly Components
Installing the SDCP Ribbon Cable
NOTE
The SDCP ribbon cable must be
connected to the carrier
backplane before the power
transformer unit and optional fan
module are installed.
Removing power causes loss of
service to all circuit card slots in
the carrier. It is recommended
that you do not perform this
procedure during peak operating
hours.
" Procedure
1. Select the carrier on which to install the SDCP.
The SDCP can be installed on any carrier in a
cabinet. The most convenient height for the SDCP
is at eye level (the second or third carrier from the
top of the cabinet).
If the ac power
transformer unit is . . .
Then go
to . . .
Installed Step 3
Not installed Step 6
3. At the rear of the carrier, disconnect the ac power
cord from the carrier. Unscrew the two captive
screws securing the power transformer unit.
AC
Receptacle
P26 P25 P24 P23
J2 P22 J1 P21
P20 P19
P20 P19
P
a
r
a
d
y
n
e
SDCP
Installed at
Eye Level
496-14892
2. Remove the carrier’s cover plate by unscrewing
the four captive screws.
496-14804-01
4. Disconnect the two power connectors (P19 and
P20) by pressing the catch on the bottom of each
and pull it free of its mating connector.
5. At the front of the carrier, slide the power
transformer unit straight out and set aside. You
may need another person standing at the rear to
feed the transformer output wires through the
opening in the backplane.
3-73000-A2-GA31-D0 July 1999
COMSPHERE 3000 Series Carrier
6. Attach either end of the 16-pin ribbon cable
(delivered with the SDCP) to the P18 ribbon cable
connector.
P18-SDCP
Ribbon Cable
Connector
P17
P18
496-14921
7. Feed the ribbon cable through the four built-in
retainer clips provided in the carrier.
Backplane
Connector
Built-in
Retainer
Clips
SDCP
Ribbon
Cable
Connector
Install the power transformer unit. Refer to the next
section, Power Transformer Unit Installation.
Power Transformer Unit
Installation
If you are . . . Then . . .
Installing an SDCP
in the carrier
Not installing an
SDCP
The carrier obtains low voltage ac power from the
power transformer unit mounted at the bottom of the
carrier.
" Procedure
1. At the front of the carrier, remove the cover plate
by unscrewing the four captive screws.
Go to the
section, page 3-6.
Continue with the following
procedure.
SDCP Installation
Captive
Screws
Cover Plate
496-14889-01
2. Place the power transformer unit on the flanges at
the bottom of the carrier. Slide the power
SDCP
Ribbon Cable
transformer unit into place against the rear rail of
the enclosure, guiding the transformer output
wires through the opening in the backplane.
495-14810
3-8 July 1999 3000-A2-GA31-D0
Fan Module
Power
Connector
Power
Transformer
Unit
NOTE
Transformer
Output
Wires and
Connectors
495-14803
Installing the Carrier and Assembly Components
4. Plug the power transformer output connectors into
the P19 and P20 connectors on the backplane and
latch them.
CAUTION
The power cord contains a
3-wire grounding-type plug
which has a grounding pin.
This is a safety feature.
Grounding of the carrier is
vital to ensure safe operation.
Do not defeat the purpose of
the grounding plug by
modifying it or by using an
adapter.
Prior to installation, use an
outlet tester or voltmeter to
check the ac receptacle for
earth ground. If the power
source does not provide a
ground connection, consult an
electrician to determine
another method of grounding
the carrier before proceeding
with the installation.
The power transformer unit
output wires are terminated with
plastic connectors. The power
transformer unit must be installed
with the output wires protruding
through the backplane carrier.
3. At the rear of the carrier, use the larger
screwdriver to tighten the two captive screws that
fasten the power transformer unit to the carrier.
P26 P25 P24 P23
J2 P22 J1 P21
P20 P19
Captive
Screws
496-14894
AC
Receptacle
P26 P25 P24 P23
J2 P22 J1 P21
P20 P19
P20 P19
496-14804-01
5. Plug the appropriate end of the power cord into
the ac receptacle on the carrier.
6. Attach the ferrite choke on the ac power
transformer cord as close as possible to the
connector.
3-93000-A2-GA31-D0 July 1999
COMSPHERE 3000 Series Carrier
7. Plug the other end of the power cord into one of
the convenience outlets inside the cabinet, or to an
external ac outlet.
If you are not installing a fan module or SDCP, return
to the front of the carrier and replace the cover plate. Use
the smaller screwdriver to tighten the four captive screws.
Fan Module Installation
Install a fan module for installations where the ambient
temperature is likely to be near the upper limit of the
acceptable range (see T able 3-1) to provide forced air
cooling.
The power transformer unit must be installed before
the fan module.
" Procedure
1. If the carrier has been installed, remove the cover
plate by loosening the four captive screws. Set the
cover plate aside.
2. Place the fan module on the flanges at the bottom
of the carrier with the power connector facing the
mating power connector on the installed power
transformer unit.
3. Slide the fan module into the carrier until the
power connectors engage firmly.
4. Once the carrier is connected to ac power, the fans
in the fan module will begin blowing. If they do
not, check potential reasons in the following table.
If the . . .
Fan module does
not operate
Fuses are blown Replace and determine the
Fuses are okay Install the fan module in
Fan module still
does not work
Check the fuses on the back
of the power transformer
unit.
cause of the overload.
another powered carrier.
Replace the fan module.
Then . . .
Flanges
Cover Plate
(SDCP Shown)
Captive
Screws
Power
Connector
Fan
Module
496-14809-02
Fan module
works in a
different carrier
Replace the power
transformer unit of the first
carrier.
5. If you are not installing an SDCP or a speaker
panel, reposition the cover plate over the installed
fan module. Use a small screwdriver to engage
and tighten the four captive screws.
To install . . .
An SDCP
A speaker panel
Go to the . . .
SDCP Installation
page 3-6.
Speaker Panel Installation
section on page 3-12.
section on
3-10 July 1999 3000-A2-GA31-D0
Installing the Carrier and Assembly Components
Circuit Card
1 fan module er carrier
Table 3-1
Fan Module Cooling Requirements
Ambient
T emperature
Range
39_ – 86_F
(4_ – 30_C)
Circuit Card
Configuration
DSUs without
DBMs and CSUs
Dial/lease
modems and
DSUs with DBM
1
1–2 3 4 5–6
No fan modules
No fan
modules
2
1 fan module
(place in middle
carrier)
Number of Carriers
2 fan modules (place in
bottom carrier and
second from top)
T1 DSU/CSUs 21 fan module per carrier or 1 fan module per two carriers
(placed in upper carrier)
86_– 122_F
T1 DSU/CSUs
(30_– 50_C)
1
Installing the TDM or MCMP option has no effect on this table.
2
Use the strictest cooling requirements when there is a mixture of units installed.
3
Allow 1.75″ (IU) spacing between carriers if more than 3 carriers are required.
Installing the SDCP
After the SDCP ribbon cable, power transformer unit,
2
1 fan module per carrier (Limit of 3 carriers in a cabinet at temperatures above 40_C
or 104_F)
3
2. Secure the panel to the front of the carrier with its
four captive screws, using the same screw holes
that held the blank cover plate.
and optional fan module are installed:
The display on the SDCP should light up immediately.
" Procedure
Continue with the following section, Testing the SDCP. If
the SDCP does not light up:
1. Attach the connector on the free end of the ribbon
cable to the back of the SDCP.
• Check the ac power connections at the rear of the
carrier and the two fuses at the rear of the power
transformer unit.
1 fan module (place in
second carrier from top)
1 fan module per carrier
SDCP
Ribbon
Cable
P
a
r
a
dyn
e
Shared Diagnostic
Control Panel
(SDCP)
• Verify that both ends of the SDCP ribbon cable are
seated securely in their connectors.
• If the SDCP still does not light up, call your service
representative.
495-14811
3-113000-A2-GA31-D0 July 1999
COMSPHERE 3000 Series Carrier
Testing the SDCP
Once devices have been installed (see Chapters 5
and 6), use the following procedure to test the SDCP by
entering device addresses.
" Procedure
1. From the front panel, press Select.
2. Enter a valid carrier and slot address. Refer to the
SDU Installation section, page 3-16, for
information on carrier addresses.
— For T1 CSUs and T1 DSU/CSUs, the green
OK indicator flashes and should be the only
OK indicator flashing in the cabinet.
— For all devices except T1 CSUs and
T1 DSU/CSUs, the yellow Front Panel
indicator on the selected device should light
and should be the only Front Panel indicator
lit in the cabinet.
3. Press Select again. The SDCP display should
show the:
T o install the speaker panel to the carrier:
" Procedure
1. Remove the cover plate.
2. Secure the speaker panel to the front of the carrier
using its four captive screws.
3. Use the same screw holes that held the cover plate
in place. Go to the Testing the Speaker Panel
section, page 3-13.
T o install the speaker panel to the cabinet’s front
mounting rails:
" Procedure
1. Determine if you want to mount the speaker panel
above or below the carrier. See Figure 3-2.
2. Fasten one of the speaker panel mounting brackets
to a front mounting rail with a #10 Phillips
screwdriver (supplied).
— Last menu displayed.
— Top-level menu on the selected device, in the
case of a new installation.
Speaker Panel Installation
You can install an optional speaker panel to provide
audio monitoring of any dial/lease modem installed in a
cabinet containing COMSPHERE 3000 Series Carriers.
If there is . . .
Only one carrier in the cabinet
and no SDCP installed
More than one carrier in the
cabinet
Only one carrier in the cabinet
and an SDCP is mounted on
the carrier
Mount the speaker
panel . . .
Directly to the carrier in
place of the cover plate.
On a carrier that does
not contain the SDCP.
To the front rail.
NOTE
If your cabinet has unthreaded
rails, first attach a speed nut to
the rail hole you intend to use.
Then, fasten a bracket to the
mounting rail using a supplied
#12 screw (the longer
Phillips-head screw).
3. Verify the position by holding the panel against
the bracket and aligning the panel’s captive screws
with the bracket’s screw post. For appearance, you
can adjust the bracket’s position to eliminate space
between the speaker panel and carrier.
4. Fasten the second speaker panel bracket to the
other mounting rail to match the first bracket’s
position.
5. Once the brackets are installed, use a small
flathead screwdriver to tighten the speaker panel’s
four captive screws to the mounting brackets.
3-12 July 1999 3000-A2-GA31-D0
Installing the Carrier and Assembly Components
Testing the Speaker Panel
Once the speaker panel is installed, verify that the
speaker is working.
" Procedure
1. Connect one end of the supplied coiled cable into
the speaker panel’s jack labeled Spkr and the
other end into any dial/lease modem’s speaker
jack labeled Spkr.
2. If the cabinet has an SDCP, press Select and enter
a valid carrier and slot address for the modem
used in Step 1. The Front Panel status indicator
on the dial/lease modem’s faceplate lights,
indicating that it is connected to the SDCP.
3. Using the SDCP, scroll the menu until the Control
branch appears on the LCD.
Speaker Panel
Mounting
Bracket
#10
Phillips-head
Screw
4. Access the Control branch and select the Speaker
function.
5. Select a speaker setting of Low, Medium, or High
and place a call to listen to the dialing sequence.
NOTE
This is only a temporary setting.
Upon a reset, the modem returns
to its default setting of Medium.
To change the default setting,
refer to the device’s manual.
If you do not have an SDCP installed and are using
AT commands, use the ATM command to turn the speaker
ON and the ATL command to adjust the speaker volume.
Front Rail
Captive
Screws
Modem Speaker
Panel
Speaker Jack
Carrier
Mounting
Bracket
Captive
Screws
SDCP
496-13184-05
Figure 3-2. Speaker Panel for Dial/Lease Modems
3-133000-A2-GA31-D0 July 1999
COMSPHERE 3000 Series Carrier
SGRD/FGRD Connection
Grounding reduces interference. To connect frame
ground (FGRD) to signal ground (SGRD) for all DSUs
and modems in the carrier, install the provided wire strap
between the SGRD and FGRD terminals at the rear of the
carrier. The terminals are an insulation displacement type,
with a slot designed to cut through the insulation on the
wire.
SGRD
E4
FGRD
P23
P21
ALARM
E3 E1 E2
496-14805-01
2. Insert one end of the strap into the SGRD
terminal. It is not necessary to strip the wire.
Tube Slot
Hollow Tube
E2
Wire End
496-14656b-01
3. Fit the strap into the slot in the terminal. Replace
the plastic cap on the terminal, fitting the strap
into the matching slot cut lengthwise in the cap.
Cover Slot
E2
496-14656c-01
NOTE
SGRD must not be connected to
FGRD when leased modems
are installed in the carrier.
" Procedure
1. Use pliers to pull the plastic covers off the
SGRD (E4) and FGRD (E3) terminals.
Plastic Cover
E2
496-14656a-01
4. Use a Phillips screwdriver to push the cap firmly
onto the terminal. As you seat the cap, the
terminal cuts through the insulation on the strap
and makes contact.
495-14656d-01
5. Insert the other end of the strap into the FGRD
terminal and repeat Steps 3 and 4.
3-14 July 1999 3000-A2-GA31-D0
Loading...