Filter
Top Products
6
MultiModemISDN User Guide
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 an 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® 2000 and Windows
98/95. In addition, the MTA128ST-USB accepts AT commands that enable it to use the same
communications software as an analog modem.
TD
R
D
LS
B
1 B
2 TR
O
H
128 P
1 P
2
USB ISDN Modem with Analog Port
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/