
2-13920-A2-GH30-41 February 2002
Modem Installation
Overview 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
392xPlus Modem Package 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Customer-Supplied Equipment 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model 3920Plus Modem Installation 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting Cables to the Model 3920Plus Modem 2-3. . . . . . . . . . . . . . . . . . . .
Data Terminal Equipment Connection 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Connection (3920-A1-xxx) 2-6. . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Connection (3920-A2-xxx) 2-6. . . . . . . . . . . . . . . . . . . . . . . .
Leased-Line Network Connection 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dial Network Connection 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leased Backup Connection 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dial Backup Connection 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Management System Connection 2-7. . . . . . . . . . . . . . . . . . . . . . . .
Removing and Replacing the Model 3920Plus Modem 2-8. . . . . . . . . . . . . . . . .
Model 3921Plus Modem Installation 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the Model 3921Plus Modem 2-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
392xPlus Modem Power-Up 2-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Factory Configuration Options 2-13. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Diagnostic Control Panel (DCP) 2-14. . . . . . . . . . . . . . . . . . . . . . . .
Overview
This chapter provides a list of equipment supplied with 392xPlus modems, as well as a list of
customer supplied equipment. In addition, it describes how to install and remove the 392xPlus
modems, and how to select a factory preset configuration using the DCP.
392xPlus Modem Package
After opening the modem’s package, check for damage and verify that the following items are
present:
For the standalone models
• Installation instructions
• Model 3920Plus modem
• Power supply with power cord (3920-A1-xxx) or power transformer (3920-A2-xxx)
• One 6-position, 4-wire modular cord (in selected models)
• One 8-position, 8-wire modular cord (in selected models)
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