Paradyne COMSPHERE 3821PLUS User Manual Download

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3821-A2-GB20-40

January 1999

Introduction

Overview

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Features

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Status Indicators

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SDCP Operation

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LCD

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Keypad

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Overview

The 3821Plus is a member of the COMSPHERE

3800 Series Modem product line. The 3821Plus card
comprises three modems, permitting as many as
48 modems to be installed in a single 3000 Series Carrier.
Each is a software-definable high-speed modem that
offers reliable asynchronous and synchronous operation
over dial or two-wire leased-line networks.

Features

The 3821Plus modem has a wide variety of features,

including:

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Dial-Line Modulations: ITU-T V.34 (up to
33,600 bps), V.32terbo (19,200 and 16,800 bps),
ITU-T V.32bis (up to 14,400 bps), V.32 (up to
9600 bps), V.22bis (2400 bps), V.22 (1200 bps),
V.21 (300 bps), Bell 212A (1200 bps), and
Bell 103J (300 bps).

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Two-wire Leased-Line Modulations: ITU-T V.34
(up to 33,600), V.32terbo (19,200 and 16,800 bps),
V.32bis (14,400, 12,000, 9600, 7200, and
4800 bps), V.32 (9600 and 4800 bps), and V.22bis
(2400 bps).

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Class 1 and Class 2 Group III Fax modulations:
ITU-T V.17 (14,400, 12,000, 9600, 7200 bps),
V.29 (9600, 7200 bps) and V.27ter (4800,
2400 bps).

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Convenient migration to new or optional features
through software downloading.

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ITU-T V.42bis and MNP Class 5 data compression.

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Virtual error-free data integrity with ITU-T V.42
and MNP Levels 2– 4 error control.

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Asynchronous dial DTE data rates from 300 bps to
115,200 bps.

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Optional Enhanced Throughput Cellular (ETC),
which improves reliability and speed over cellular
links.

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Compatibility with the industry de facto standard
AT Command set.

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High-speed transmission using asynchronous,
synchronous, or UNIX devices over full- or
half-duplex dial networks or 2-wire leased lines.

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Supported under the COMSPHERE 6700 or
6800 Series Network Management System (NMS).

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Compatibility with standalone COMSPHERE
3800Plus, 3800, and 3900 Series modems’ Remote
Access Mode, which allows users to view the
configuration options of a 3821Plus modem from a
remote Diagnostic Control Panel (DCP) or Shared
Diagnostic Control Panel (SDCP).