Introduction; Overview; Features - Paradyne COMSPHERE 3821Plus User Manual

Overview

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Features

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Status Indicators
SDCP Operation
LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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:
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).
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).
3821-A2-GB20-30
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February 1998

Introduction

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).
Convenient migration to new or optional features
through software downloading.
ITU-T V.42bis and MNP Class 5 data compression.
Virtual error-free data integrity with ITU-T V.42
and MNP Levels 2– 4 error control.
Asynchronous dial DTE data rates from 300 bps to
115,200 bps.
Optional Enhanced Throughput Cellular (ETC),
which improves reliability and speed over cellular
links.
Compatibility with the industry de facto standard
AT Command set.
High-speed transmission using asynchronous,
synchronous, or UNIX devices over full- or
half-duplex dial networks or 2-wire leased lines.
Supported under the COMSPHERE 6700 or
6800 Series Network Management System (NMS).
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).
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