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MultiModemISDN User Guide
MTA128ST-USB
Introduction
Welcome to the world of data communications. You have acquired one of the finest ISDN
terminal adapters (TA) available today from one of America’s oldest and most respected
modem manufacturers: Multi-Tech Systems, Inc. This user guide will help you install,
configure, test and use your terminal adapter.
Product Description
The MTA128ST-USB is a desktop terminal adapter with an ST port used for connection
to the ISDN network, a USB port for connection to a PC or laptop, and an analog port to
connect to a telephone, modem, or fax machine. It ships with a software configuration
utility for Windows® 98 and Windows 95. In addition, the MTA128ST-USB accepts AT
commands that enable it to use the same communications software as an analog
modem.
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Figure 1-1: MTA128ST-USB (Front View)
The MTA128ST-USB is compatible with the popular EuroISDN switch protocol, it
communicates using ISDN BRI (2B+D) service, which provides up to 128 Kbps data and
voice communications, and it automatically detects whether an incoming call is voice or
data and handles it appropriately.
Universal Serial Bus (USB)
Universal Serial Bus (USB), defined by a consortium of industry leaders, permits
connection of multiple low-speed and medium speed computer peripheral devices such
as telephones, modems, printers, keyboards, mice, and scanners; all from a single
personal computer port. The specification, based on open architecture has become a
standard feature in new desktop and notebook computers.
For more details, refer to the USB Public Web Board on the World Wide Web at:
http://www.usb.org/