Introduction; Overview; Features - Paradyne COMSPHERE 3910 Installation And Operation Manual

Overview

The COMSPHERE 391x Series modems, a new generation of full-feature, high-speed modems,
offer reliable asynchronous and synchronous operation over leased-line or dial networks. The 391x
Series modems' unique software defineability allows for the addition of future enhancements,
whether it is installing new features or firmware upgrades.
The modem's compatibility with a number of dialing methods and protocols, such as asynchronous
AT commands, CCITT V.25bis dialing, and the user-friendly diagnostic control panel (DCP),
permits the 391x Series modem to be used in a variety of applications and environments while also
allowing control over modem configuration, dialing, and diagnostics. The 391x Series modems
offer preset factory configurations containing the most often used modem settings.

Features

The 391x Series modems have a wide variety of features.
3910-A2-GN32-30
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multipoint Applications
Leased Backup Applications
COMSPHERE 391x Series Models
Standalone Model 3910 4-Wire/2-Wire Modem
Carrier-Mounted Model 3911 4-Wire/2-Wire Modem
Government Requirements and Equipment Return
United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Specifications
Four-wire/two-wire point-to-point or four-wire multipoint operation.
Four-wire/two-wire leased-line modulations: V.32 terbo (19200 and 16800 bps), V.32bis
(14400, 12000, 9600, 7200, and 4800 bps), V.32 (9600 and 4800 bps), Paradyne
Point-to-Point Diagnostic (1200, 2400 bps), Trellis Multipoint (19200, 14400, 9600, 7200,
4800, and 2400 bps), V.22bis (2400 bps), V.27bis (4800 and 2400 bps), V.33 (14400 and
12000 bps), and V.29 (9600, 7200, and 4800 bps).
Dial-line modulations: V.32 terbo (19200 and 16800 bps), V.32bis (14400, 12000, 9600,
7200, and 4800 bps), V.32 (9600 and 4800 bps), Paradyne Point-to-Point Diagnostic (1200,
2400 bps), V.22bis (2400 bps), V.22 (1200 bps), V.23 (1200 and 600 bps), V.21
(300 bps), Bell 212A (1200 bps), and Bell 103J (300 bps).
Channel adaptive Trellis-Coded Modulation, Paradyne's advanced Trellis-Coded transparent
forward error correction for Trellis multipoint and high-speed point-to-point applications.
November 1996

Introduction

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