Paradyne operation manual Model 3910 Modem Installation, Customer-Supplied Equipment

COMSPHERE 3900 Series Modems

For the carrier-mounted model

•Installation instructions

•Model 3911 modem

•Rear connector plate with two DB-25-S edge card connectors

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 3910 modem:

•A DTE with an available EIA-232-D serial port.

•A standard EIA-232-D cable with a DB-25-P (plug) connector at one end to attach to the modem.

•One of the following modular leased or dial network interfaces:

ÐJM8 for leased-line applications.

ÐRJ11C for dial permissive applications.

The following customer-supplied equipment is required for the installation of a Model 3911 modem:

•A COMSPHERE 3000 Series Carrier.

•A 50-pin mass termination cable.

•One of the following modular or 50-pin leased or dial network interfaces:

ÐRJ11C for single line dial permissive applications.

ÐRJ21X for multiple line dial permissive applications.

Ð66 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 applications).

For installation of the COMSPHERE 3000 Series Carrier into a cabinet, refer to the COMSPHERE 3000 Series Carrier, Installation Manual.

Model 3910 Modem Installation

Before installing your standalone modem, make sure your installation site is clean and well-ventilated. Allow space around the modem for installing cables and telephone cords, and make sure the modem is located within reach of the ac power outlet. The distance between your modem and DTE should be minimized if DTE data rates exceed 19,200 bps. Also, low capacitance cables may be necessary for speeds greater than 19,200 bps or distances greater than 50 feet.

2-2 November 1996 3910-A2-GN32-30