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2-13821-A2-GB20-30 February 1998
3821
Plus
Modem Installation
Overview 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3821Plus Installation 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install the Carrier 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install the NIM 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable the NIM 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Attach the DTE Interface Assembly 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install the Circuit Card 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connect the DTE 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install Communications Software 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Select Factory Configuration Options 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Configurations Using the SDCP 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Configurations Using AT Commands 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview
This chapter describes how to install the 3821Plus card
and connect both provided and customer-supplied cables
to the modems. In addition, it describes how to configure
3821Plus modems for specific applications.
3821
Plus
Installation
A typical 3821Plus installation requires the following
equipment:
• Eight 3821Plus cards
• One DTE interface assembly with 24 ports
• One Network Interface Module (NIM) with a
50-position short ribbon cable
• This user’s guide
• Three DTE (RS-232D) cables or three 8-position
modular cables with six 8-position modular to
DB25 adapters for each 3821Plus card
• One 50-position to network interface cable for each
NIM
• A 66A-punchdown block or RJ11 gang box
See Appendix G, Equipment List.
If any hardware components are damaged, notify your
sales representative. Return equipment using the
procedures described in the Government Requirements
and Equipment Return section in the front of this guide.
Install the Carrier
The 3821Plus card resides in a COMSPHERE
3000 Series Carrier. The carrier must be installed in a rack
before the modem cards can be installed in the carrier.
The 3821Plus card requires a Shared Diagnostic
Control Panel (SDCP) for control and configuration of
individual modems. It also requires a Shared Diagnostic
Unit (SDU) if the modems will be under control of an
NMS, or if the SDCP is used for more than one carrier.
Instructions for the installation of the SDCP and SDU, as
well as the 3000 Series Carrier and its power supply, can
be found in the COMSPHERE 3000 Series Carrier
Installation Manual, document number 3000-A2-GA31.
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