Customer-Supplied Equipment - Paradyne COMSPHERE 3920PLUS Installation And Operation Manual

COMSPHERE 392xPlus Modems
For the carrier-mounted models
If any hardware components are damaged, notify your service representative. Return equipment
using the procedures described in the Government Requirements and Equipment Return section of
Chapter 1.

Customer-Supplied Equipment

The following customer-supplied equipment is required to complete a data communications system
using the Model 3920Plus modem:
The following customer-supplied equipment is required for the installation of a Model 3921Plus
modem:
For installation of the COMSPHERE 3000 Series Carrier into a cabinet, refer to the COMSPHERE
3000 Series Carrier, Installation Manual.
2-2
Installation instructions
Model 3921Plus modem
One (singleport) or two (multiport) connector plates with two DB-25-S edge card connectors
on each plate
One (singleport) or four (multiport) DTEs with available EIA-232-D serial port(s).
Standard EIA-232-D cables with one (singleport) or four (multiport) DB-25-P connectors at
one end to attach to the modem.
One or more of the following modular leased or dial network interfaces:
— JM8 for leased-line configurations.
— RJ11C for dial permissive configurations.
— One 8-position, 8-wire modular cord (for leased backup purposes).
A COMSPHERE 3000 Series Carrier.
A 50-pin mass termination cable.
One or more of the following modular or 50-pin leased or dial network interfaces:
— RJ11C for single-line dial permissive configurations.
— RJ21X for multiple-line dial permissive configurations.
— 66 punchdown block.
One Network Interface Module (NIM) for modems installed in Slots 1–8 and one NIM for
modems installed in Slots 9–16 (required for dial-line configurations).
November 1996 3920-A2-GN31-30