Specifications

Chapter 1
Introduction
C
ongratulations for purchasing the finest industrial-grade fast-poll rack-mount modem available.
Th
ful
e BLACK BOX® MD1980C modem is a 9600/4800/0-1800 bps rack-mount modem designed for 4-wire,
l-duplex or 2-wire, half-duplex operation over a voice-band leased line. The modem is designed utilizing
the latest digital-signal processing (DSP) technology to achieve high performance. The modem employs Black
Box’s proprietary modulation and encoding scheme to achieve fast modem training time. It is also backward
compatible with Bell 202 modems.
The modem can be installed in a BLACKBOX® Modem Rack II (p/n RM421A) from Black Box Corporation. It
can also be installed in a DSP9612 Data Shelf from Telenetics Corporation or an RM16M Universal Data Shelf
from Motorola/UDS. The modem occupies only one rack slot, eliminating the hassle of equipment trays and power
bricks required for “Plastic Box” modems. The modem is powered from the modem cage or modem rack.
The BLACK BOX® MD1980C modem is ideally suited for multi-point communication systems that require fast
response time, short training time, and low throughput delay. The MD1980C is the most technologically advanced
rack-mount modem on the market.
This User’s Guide is designed to let you get your modem “up and running” as quickly as possible. It contains all the
information you need to install and configure your modem. It also contains troubleshooting information in the
unlikely event you encounter a problem with your modem.
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