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3920-A2-GK41-60
February 2002
COMSPHERE 392xPlus Modems
Models 3920Plus and 3921Plus
Installation Instructions
Document Number 3920-A2-GK41-60
February 2002
Overview
The COMSPHERE Model 392xPlus modems are full-feature, high-speed leased modems, providing reliable
asynchronous and synchronous operation over leased or dial-line networks with data rates as high as 33,600 bps.
Through downloading capability, any Model 392xPlus modem is upgradable to the latest firmware, requiring no
new hardware investment or on-site personnel, with little or no downtime. For more information on downloading
capability, refer to the Automatic Firmware Download section in Chapter 7, Control Branch, of the COMSPHERE
392xPlus Modems, Models 3920Plus and 3921Plus, Technical Reference Manual, Document No. 3920-A2-GH30.
Model 392xPlus modems support a wide range of modulation schemes and offer control using either AT
commands, the diagnostic control panel (DCP) or the optional COMSPHERE 6700 and 6800 Series Network
Management Systems (NMS). The NMS performs extensive monitoring, testing, reporting, and restoral functions
to assist in managing your network.
Model 392xPlus modems are compatible with a number of dialing methods and protocols, such as asynchronous
AT commands, ITU-T V.25bis dialing, and the DCP. The DCP allows you to use the Model 392xPlus modem in a
variety of applications and environments while also providing control over modem configuration, dialing, and
diagnostics. The Model 392xPlus modems come with preset factory configurations that are the most often used
modem settings.
This document provides the following information:
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A description of the COMSPHERE 392xPlus models
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A list of equipment supplied with the modem
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A list of customer-supplied equipment
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Installation instructions
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A 392xPlus Menu tree
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Important safety instructions
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Regulatory notices
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Government requirements and equipment return information
This document is intended to be used in conjunction with the COMSPHERE 392xPlus Modems, Models 3920Plus
and 3921Plus, Technical Reference Manual, Document No. 3920-A2-GH30. This manual is available on the
World Wide Web at www.paradyne.com. Select Library
→
Technical Manuals
→
Business Class Analog
Modems. Contact your sales or service representative to order product documentation.
