WIRELESS DATA GATEWAY
INSTALLATION AND OPERATION MANUAL
Document No. 3981-A2-GN31-20
November 1996
Wireless Data Gateway
A November 1996 3981-A2-GN31-20
Wireless Data Gateway
Installation and Operation Manual
3981-A2-GN31-20
3rd Edition (November 1996)
Changes and enhancements to the product and to the information herein will be documented and issued as a new release.
Warranty, Sales, and Service Information
Contact your sales or service representative directly for any help needed. For additional information concerning warranty,
sales, service, repair, installation, documentation, or training, use one of the following methods:
• Via the Internet: Visit the Paradyne World Wide Web site at http://www.paradyne.com
• Via 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
— International, call 727-530-2340
Trademarks
All products and services mentioned herein are the trademarks, service marks, registered trademarks or registered service
marks of their respective owners.
COPYRIGHT 1996 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.
Printed on recycled paper
Safety Instructions
B3981-A2-GN31-20 November 1996
Important Safety Instructions
1. Read and follow all warning notices and instructions marked on the product or included in the
manual.
2. 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. To ensure reliable operation of
the product and to protect it from overheating, these slots and openings must not be blocked
or covered.
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. 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.
8. 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.
9. To provide proper cabinet balance, always install the controller and carriers in the bottom of
the cabinet first, then work up.
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.
Wireless Data Gateway
C November 1996 3981-A2-GN31-20
Notices
!
i3981-A2-GN31-20 November 1996
Table of Contents
Preface
About This Manual v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Related Documents v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1. System Overview
Introduction 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Logical Description 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. Site Preparation
Mounting Equipment 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T1 Interface 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Call Routing 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. 3000 Series Carrier Installation
Carrier Installation 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. Modem Installation and Configuration
Modem Installation 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6700 Series NMS 4-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. AAC Installation and Configuration
AAC Installation 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. Testing the System
Introduction 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Normal Operation 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Checkout 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Problems and Solutions 6-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wireless Data Gateway
ii November 1996 3981-A2-GN31-20
Appendices
A. Technical Specifications A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B. Pin Assignments B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C. Equipment List C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glossary
Index
Table of Contents
iii3981-A2-GN31-20 November 1996
List of Figures
Figure Page
(Frontispiece) Wireless Data Gateway 1-0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1 WDG Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3 Gateway Channel 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1 Attaching the NIM 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2 CO Power Unit Installation 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3 Option Straps (S1 and S2) on a –48 Vdc CO Power Unit 3-5. . . . . . . . . . . . . . . . . . . . .
3-4 Option Straps (S1 through S5) on the CO Power Unit’s Backplane 3-5. . . . . . . . . . . . .
3-5 Cabling the NIM 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-6 Installing the SDCP 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-7 SDU Switches 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-8 Installing the SDU 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-9 Power Tray Connectors 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-10 Building the Power Input Cable 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-11 Using One Power Source and One Input Power Cable for
Basic (shown) or Redundant Mode 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-12 Using Two Separate Power Sources for Independent Mode or Redundant Mode 3-12. .
3-13 Using One Power Source and Two Input Power Cables for
Independent Mode or Redundant Mode 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-14 SDU Connections 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1 Rear Connector Plate 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2 Installing a 3811Plus Modem 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-3 3811Plus Modems with DTE Crossover Cables 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-4 Circuit Pack Lock 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1 DSX/CEPT Module Strapping 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2 E&M Card Switch Positions 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-3 50-Pin Amphenol to Two RJ48C Adapter 5-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-4 50-Pin Amphenol to Eight RJ48C Adapter 5-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-5 Connecting E&M Cards to NIMs 5-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-6 Switch Connection Without WAN Redundancy 5-10. . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-7 Switch Connection With WAN Redundancy 5-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B-1 DTE Loopback Cable B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wireless Data Gateway
iv November 1996 3981-A2-GN31-20
List of Tables
Table Page
3-1 Settings for Basic Mode 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2 Settings for Independent Mode 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3 Settings for Redundant Mode Using a Single –48 Vdc Power Source and a
Single Input Power Cable 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-4 Settings for Redundant Mode with Either a Single Power Source
and Two Input Power Cables, or Two Separate Power Sources
and Two Input Power Cables 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-5 Carrier Address DIP Switches 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-6 Protocol DIP Switches 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1 3811Plus Modem Configuration 4-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1 Switch Settings for E&M Cards 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2 Two T1s: Configuration of First E&M Card (Slot U1) 5-4. . . . . . . . . . . . . . . . . . . . . . .
5-3 Two T1s: Configuration of Second E&M Card (Slot U2) 5-4. . . . . . . . . . . . . . . . . . . . .
5-4 Two T1s: Configuration of Third E&M Card (Slot U3) 5-5. . . . . . . . . . . . . . . . . . . . . .
5-5 Two T1s: Configuration of Fourth E&M Card (Slot U4) 5-5. . . . . . . . . . . . . . . . . . . . .
5-6 Two T1s: Configuration of Fifth E&M Card (Slot U5) 5-5. . . . . . . . . . . . . . . . . . . . . . .
5-7 Two T1s: Configuration of Sixth E&M Card (Slot U6) 5-5. . . . . . . . . . . . . . . . . . . . . .
5-8 One T1: Configuration of First E&M Card (Slot U1) 5-6. . . . . . . . . . . . . . . . . . . . . . . .
5-9 One T1: Configuration of Second E&M Card (Slot U2) 5-6. . . . . . . . . . . . . . . . . . . . . .
5-10 One T1: Configuration of Third E&M Card (Slot U3) 5-7. . . . . . . . . . . . . . . . . . . . . . .
5-11 Cabling of E&M Cards to NIMs 5-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-1 Technical Specifications for the Wireless Data Gateway A-1. . . . . . . . . . . . . . . . . . . . .
B-1 4-Wire NIM/E&M Connector Pin Assignments B-2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
B-2 4-Wire NIM/E&M Connector Pin Assignments B-2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
B-3 4-Wire NIM Power Cable Wiring B-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B-4 50-Pin Amphenol to Two RJ48C Adapter Pin Assignments B-3. . . . . . . . . . . . . . . . . . .
B-5 50-Pin Amphenol to Eight RJ48C Adapter Pin Assignments B-4. . . . . . . . . . . . . . . . . .
v3981-A2-GN31-20 November 1996
Preface
About This Manual
This manual describes installation and operation
requirements particular to the ACCULINK Access
Controller (AAC), COMSPHERE 3000 Series Carrier,
and 3811Plus modem when they are used in combination
to implement the Wireless Data Gateway (WDG). In
addition, this manual describes elements unique to the
WDG, such as the 4-Wire E&M Network Interface
Module (NIM).
Chapter 1 describes the purpose of the WDG and the
hardware it comprises.
Chapter 2 describes the site preparation requirements
of the WDG.
Chapter 3 describes the installation and cabling of the
3000 Series Carrier.
Chapter 4 describes the installation, cabling, and
configuration of the 3811Plus modems.
Chapter 5 describes the installation, cabling, and
configuration of the AAC and its adapter cards.
Chapter 6 describes the operation of the WDG, and
offers solutions to common problems.
Appendix A provides the technical specifications of the
WDG.
Appendix B provides the pin assignments for the DTE
loopback cable, the 8-pin modular to DB-25 cable, and the
E&M card to NIM connectors.
Appendix C lists equipment associated with the WDG.
The Glossary defines some of the abbreviations and
product-specific terms used in this manual.
Related Documents
The WDG is shipped with the following additional
manuals:
Paradyne:
3000-A2-GA31 COMSPHERE 3000 Series
Carrier Installation Manual
3000-A2-GB41 COMSPHERE –48 Vdc
Central Office Power Unit
Installation Guide
3980-A2-GB30 COMSPHERE 3800Plus
Modems User’s Guide
6700-A2-GY31 COMSPHERE 6700 Series
Network Management System
User’s Guide
AT&T:
582-510-100 ACCULINK Access Controller
Reference Guide
Call your sales representative for additional product
documentation
Wireless Data Gateway
1-0 November 1996 3981-A2-GN31-20
496-14628-02
P
a
r
a
dyn
e
ACCULINK
Access Controller
3000 Series
Carriers
3811
Plus
Modems
Wireless Data Gateway
1-13981-A2-GN31-20 November 1996
System Overview
Introduction 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Logical Description 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network/Switch Interface 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modem Bank 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Management 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio Timeout 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction
The Wireless Data Gateway (WDG) is a modem pool
that acts as the termination point for cellular calls and the
origination point for PSTN calls. The WDG consists of
dial modems and a T1 access platform directly connected
to the T1 looparound trunks of a cellular switch.
The WDG dynamically matches the protocol of a
user’s modem to take full advantage of Enhanced
Throughput Cellular (ETC) or MNP 10 to enhance
performance. The WDG eliminates the impact of echo,
clipping, and cell handoff impairments to provide greater
reliability in mobile-to-host communications.
Calls originating from a cellular data user, identified
with a special prefix (such as *DATA), are routed through
the WDG. The WDG allows call information to be passed
through the system unimpaired. When the WDG detects
that the destination has answered with a data tone, the
WDG intercepts the data start-up sequence and inserts
itself into the VF path.
The WDG then establishes two separate data
connections, one with the originator and one with the
destination, each optimized for its particular line
conditions. See Figure 1-1.
Destination
Land
Modem
COMSPHERE 3610
Mobile Switch
WDG
PSTN
Error
Correcting
Protocol
Cellular
Error Correcting
Protocol
Originating
Cellular
Modem
T1
PSTN
T1
T1
T1
496-14617-0
2
Figure 1-1. WDG Overview
1
Wireless Data Gateway
1-2 November 1996 3981-A2-GN31-20
Logical Description
The WDG consists of three major functional areas:
• Network/Switch Interface
• Modem Banks
• Network Management
See Figure 1-2.
Network
Interface
Network
Management
4-Wire
E&M
T1 or E1
Modem Bank
Modem Bank
Modem Bank
496-14618-0
1
Figure 1-2. WDG Functional Areas
Network/Switch Interface
The Network/Switch Interface terminates two digital
T1 or E1 signals from the loop-around connections of a
mobile switch and provides a 4-wire E&M signaling
interface to the modem banks.
The interface is implemented using the ACCULINK
Access Controller (AAC).
• The CSU WAN modules on the AAC terminate the
T1 signals.
• The bus architecture of the AAC routes individual
DS0 slots of the T1 to a 4-wire analog interface on
4-wire E&M interface cards within the AAC.
• Each pair of E&M ports map to a time slot on the
T1 looparound trunks.
• Each 4-wire E&M card provides 8 analog interfaces
in the form of a 50-position connector.
Modem Bank
The modem bank terminates 4-wire E&M signals from
the Network/Switch Interface with paired analog modems
in a carrier. Modems are either idle or active.
When . . .
Then . . .
When two paired
modems are idle
The modems act as an E&M
pass-through circuit.
Transmit signals from one
E&M port on the AAC are
routed to the receive path of
the next E&M port.
When fax calling tone is
detected
The detecting modem
signals its partner not to
answer. The modems are in
fax pass-through mode.
When a modem goes
active (detects answer
tone)
It signals its partner modem
and they begin training.
When both modems are
active
The pass-through function is
disabled and the modems
terminate the signals from
the E&M ports on the AAC.
See Figure 1-3.
T1 or E1 signal
enters here from
the switch's
looparound trunks.
A single DSO
(shown here as
TS1) is brought
out and bussed to
a port on the
4-wire E&M card.
The 3811
Plus
modems
terminate the
modem signal
from the cellular
modem and
route the data to
another modem
through a DTE
crossover cable.
The signals between
the Network Interface
block and the Modem
Bank use a 4-wire E&M
signaling arrangement.
Network
Interface Block
Modem Bank
DTE
Crossover
Cable
4W
NIM
4W
E&M
TS1
TS1
3811
Plus
E&M1-1
E&M1-2
WAN2
WAN1
3811
Plus
496-14619-0
1
Figure 1-3. Gateway Channel
System Overview
1-33981-A2-GN31-20 November 1996
The modem bank is implemented using the
COMSPHERE 3000 Series Carrier and 3811Plus
modems.
• A 4-wire E&M Network Interface Module (NIM)
provides the physical termination for eight 4-wire
E&M connections in the form of a 50-position
connector.
• A single 50-position cable connects the eight
analog interfaces on each NIM to a single 4-wire
E&M interface card on the AAC. (This is the only
interconnection supported for the modem 4-wire
interface; it cannot be directly connected to the
network.)
The WDG always attempts to match the modulation
and error correction (EC) protocol of the remote cellular
and PSTN modems. In addition, the WDG rejects calls on
the cellular connection which attempt to connect without
an EC protocol. (Calls on the PSTN, however, are allowed
to connect without an EC protocol.)
Fax calls and voice calls are identified by the WDG
and handled in passthrough mode.
Network Management
Network Management for the carrier is implemented
using an IBM AT-compatible personal computer running
the COMSPHERE 6700 Series Network Management
System (NMS) under the Microsoft Windows
environment.
The AAC is directly controlled by VT100 terminal
emulation software running on a personal computer. The
AAC supports SNMP, and can be placed under the control
of an SNMP manager such as SunNet Manager or
HP OpenView.
Audio Timeout
The WDG can be used for voice calls. However, this
diminishes the number of connections available for data
calls. The Audio Timeout feature helps maintain
availability of the WDG by disconnecting a voice call
after a user-selected number of seconds (001 to 999)
elapses.
The Audio Timeout configuration option is available
from the Shared Diagnostic Control Panel (SDCP). Audio
Timeout follows the CellularRJ11Adpt configuration
option in the Misc group of the Configure branch.
F1
Audio Timeout
End ↑ 0
00 sec
F2
F3
The and keys are used to move the cursor
from one digit to the next, and the F2 key (under the ↑
symbol) is used to increment the digit position.
The default is 000 seconds, meaning that voice calls
are not automatically disconnected.
The Audio Timeout value must allow sufficient time
for the call to complete. A minimum setting of 30 seconds
is recommended. Set the value in both the land-side and
cellular-side modems.
See the COMSPHERE 3800Plus Modems User’s Guide
(3980-A2-GB30) for more information about configuring
the modem using the SDCP.
2-13981-A2-GN31-20 November 1996
Site Preparation
Mounting Equipment 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T1 Interface 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Call Routing 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting Equipment
The following information should be used in
conjunction with the site requirements described in the
ACCULINK Access Controller Reference Guide and the
COMSPHERE 3000 Series Carrier Installation Manual.
A single WDG system comprises one ACCULINK
Access Controller (AAC) and up to three COMSPHERE
3000 Series Carriers. These require one of the following
for mounting and support:
• One COMSPHERE 72-Inch Equipment Cabinet
(Part Number 4000-B2-200).
• Any standard EIA 19-inch or 23-inch equipment
cabinet with sufficient vertical space for one AAC
(10 inches), up to three COMSPHERE 3000 Series
Carriers (11 inches each), and any power
distribution equipment.
Allow sufficient space in the front and rear of the
cabinet to permit access for installation and maintenance.
Provide sufficient ventilation to maintain temperatures
in the normal operating range for the equipment. See
Appendix A.
Power
The WDG requires –48 Vdc power, and the maximum
configuration uses 519 watts.
Calculate fuse requirements according to the following:
• 2 amps for the AAC
• 3 amps for each fully-loaded carrier
T1 Interface
A fully-configured WDG requires two T1 lines. Either
DSX or CSU operation is supported, controlled by the
type of plug-in card attached to the WAN card in the
AAC. Either D4 or ESF formats are supported, controlled
by software in the AAC.
Note that the RJ48 T1 cables supplied with the AAC
use stranded wire; they should not be used for a wire wrap
connection. Obtain solid-wire cables for a wire wrap
connection.
Call Routing
So that cellular calls can be identified and routed
through the WDG, the cellular user dials a special prefix
(typically *DATA, or *3282) before the destination phone
number.
Configuring the switch for proper routing according to
the prefix is the responsibility of the switch administrator.
Once the routing has been arranged, it can be tested
using a cellular phone, a laptop PC, a PCMCIA modem,
and standard communications software. See Chapter 6.
2
3-13981-A2-GN31-20 November 1996
3000 Series Carrier Installation
Carrier Installation 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install the NIMs 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install the Carrier 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install the Power Units and the Power Tray 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connect the NIM Cables 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install the SDCP 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install the SDU 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connect the –48 Vdc Power Source 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connect the NMS 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Carrier Installation
Installation of the COMSPHERE 3000 Series Carrier is
described in the COMSPHERE 3000 Series Carrier
Installation Manual except for the installation and cabling
of the 4-Wire E&M Network Interface Module (NIM) and
the configuration and cabling of the 3811Plus modems.
Experienced installers may wish to follow this
checklist.
Checklist
- Attach the NIM to the carrier backplane.
• Set up a static-free work area.
• Attach the PBX cable to the carrier backplane.
• Attach the NIM card to the backplane.
• Attach the PBX cable to the NIM card.
- Install the SDCP ribbon cable.
- Install the carrier into the rack.
- Configure the power tray and power unit straps.
- Attach the grounding strap to the power tray.
- Install the power tray.
- Connect the NIM cables.
• Attach the 50-position ribbon cable to the NIM
card and the backplane.
• Install the power connectors to the backplane
and the NIM.
- Install the SDCP.
• Attach the ribbon cable to the SDCP.
• Fasten the SDCP to the front of the carrier.
- Set the SDU DIP switches and install the SDU card
in Slot 0.
- Connect a power source.
- Connect the NMS and cable the SDUs together.
3
Wireless Data Gateway
3-2 November 1996 3981-A2-GN31-20
Install the NIMs
A NIM on the left side of the backplane operates with
modems located in slots 9–16 of the carrier, and a NIM on
the right side of the backplane operates with modems in
slots 1–8. Use the following instructions to install a NIM.
. Procedure
CAUTION
Always use a ground strap
when handling a NIM. Always
store an unused NIM in an
antistatic bag.
1. Prepare a static-free work area.
2. Ensure that you have all parts available: a NIM, its
three cables, and four screws. See the equipment
list in Appendix C.
3. Plug the short PBX cable terminated with the
26-position mini D-sub connector into the socket
numbered J1 (on the right side of the backplane)
or J2 (on the left side). See Figure 3-1.
4. Carefully align the connectors on the side of the
NIM opposite the steel cover with connectors P23
and P24 (on the right side of the backplane), or
connectors P25 and P26 (left side). Press the NIM
into place and fasten it to the carrier with the four
screws furnished.
5. Insert the 16-position socket at the other end of the
short PBX cable into its mating right-angle
connector at the lower left corner of the NIM.
Press firmly to lock it in place.
P26 P25
P24
P23
P20 P19
J2 P22
J1
P21
496-14807-0
1
Network
Interface
Module
(NIM)
To P23
or P25
To P24
or P26
6-Position
Service-Line
Modular Connectors
(Snaplock Posts,
if Equipped)
Short
PBX Cable
Figure 3-1. Attaching the NIM
3000 Series Carrier Installation
3-33981-A2-GN31-20 November 1996
Install the Carrier
Use the following instructions to install a 3000 Series
Carrier.
. Procedure
1. Attach the SDCP cable to the socket in the base of
the carrier, and feed it through the built-in retainer
clips. See Figure 3-2.
2. Bolt the carrier into the rack. This manual shows
the carriers mounted below the AAC, but this is
not a requirement.
CAUTION
An unmounted carrier may
flex and damage installed
modem cards. Never install
cards in the carrier until the
carrier is mounted in a rack.
Remove all cards from the
carrier before removing a
carrier from a rack.
Built-in
Retainer
Clips
SDCP
Ribbon
Cable
Space
Between
CO Power
Tray and
Power Module
SDCP
Ribbon
Cable
Left
Power
Module
CO
Power
Tray
Flanges
Ground
Strap
496-13681-02
Power
Fan Alarm
3000 DC Power Module
Power
Fan Alarm
3000 DC Power Module
3000 DC Power Module
Figure 3-2. CO Power Unit Installation
Wireless Data Gateway
3-4 November 1996 3981-A2-GN31-20
Install the Power Units and Power Tray
. Procedure
1. Configure the power tray and power unit straps.
The straps can be set for Basic mode, Independent
mode, or Redundant mode, and for one or two
power cables. See Tables 3-1 through 3-4, and
Figures 3-3 and 3-4. For detailed information, see
the COMSPHERE –48 Vdc Central Office Power
Unit Installation Guide.
2. Attach a grounding strap (minimum 18 AWG) to
the power tray at the screw marked with the
ground symbol. See Figure 3-2.
3. Feeding the grounding strap through the
rectangular opening in the backplane of the
carrier, slide the power tray into place. Fasten the
tray at the back of the carrier using the two captive
screws.
4. Attach the grounding strap to the nearest frame
ground.
Table 3-1
Settings for Basic Mode
Strap Setting for the
Power Module
Strap Setting for the CO
Power Unit’s Backplane
S1 Lowered
S1 Lowered
S2 Lowered
S3 Lowered
S2 Lowered
S4 Lowered
S2 Lowered
S5 Lowered
Table 3-2
Settings for Independent Mode
Strap Setting for
Each Power Module
Strap Setting for the CO
Power Unit’s Backplane
S1 Raised
S1 Lowered
S2 Raised
S3 Raised
S2 Lowered
S4 Raised
S2 Lowered
S5 Raised
Table 3-3
Settings for Redundant
Mode Using a Single –48 Vdc Power
Source and a Single Input Power Cable
Strap Setting for
Each Power Module
Strap Setting for the CO
Power Unit’s Backplane
S1 Lowered
S1 Raised
S2 Lowered
S3 Lowered
S2 Raised
S4 Lowered
S2 Raised
S5 Lowered
Table 3-4
Settings for Redundant Mode
with Either a Single Power Source
and Two Input Power Cables, or Two Separate
Power Sources and Two Input Power Cables
Strap Setting for
Each Power Module
Strap Setting for the CO
Power Unit’s Backplane
S1 Lowered
S1 Raised
S2 Lowered
S3 Lowered
S2 Raised
S4 Raised
S2 Raised
S5 Raised
3000 Series Carrier Installation
3-53981-A2-GN31-20 November 1996
S2
S1
S2
S1
494-13696-0
1
Figure 3-3. Option Straps (S1 and S2) on a –48 Vdc CO Power Unit
S1
S2
S3
S4
S5
CO Power Tray
496-13695-01
CO Power Unit
Backplane
Figure 3-4. Option Straps (S1 through S5) on the CO Power Unit’s Backplane
Wireless Data Gateway
3-6 November 1996 3981-A2-GN31-20
Connect the NIM Cables
. Procedure
1. If a plastic wire tie holder is present on one side of
the carrier backplane connectors P21 or P22,
remove it.
2. Using the short 50-position ribbon cable, connect
the 50-position plug at the bottom of the NIM with
the 50-position plug numbered P21 (on the right
side of the carrier backplane) or P22 (on the left
side). Figure 3-5 shows installation on the left side
of the backplane.
3. Secure each connector with its captive screw; do
not overtighten.
4. Connect the power cable. This cable has three
connectors.
— Plug the connector that terminates the shorter
of the two cable arms into P19 (right side) or
P20 (left side).
— Plug the other connector on the same end of
the cable assembly into the –48 Vdc power
supply.
— Plug the connector on the long arm of the
cable assembly into the 4-position connector
on the left side of the NIM. See Figure 3-5.
496-14621-01
To E&M Card
Power Cable
50-Position
Ribbon Cable
26-Pin Miniature
D-Sub PBX Cable
Power Supply
J2
P22
J1
P21
P20
P19
To E&M Card
4-Position
Connector
Figure 3-5. Cabling the NIM
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