2-13910-A2-GN32-41 February 2002
Modem Installation
Overview
This chapter provides a list of equipment supplied with the modem as well as a list of customer
supplied equipment. In addition, it describes how to install and remove the 391x Series modem,
and how to select a factory preset configuration using either the DCP or the AT command set.

391x Series Modem Package

After opening the modem’s package, check for damage and verify that the following items are
present:
For the standalone model
•Installation instructions
•Model 3910 modem
•Power supply
• One 6-position, 4-wire modular cord (in selected models)
• One 8-position, 8-wire modular cord (in selected models)
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 Government Requirements and Equipment Return in Chapter 1,
Introduction.
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