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Chapter 1. Overview
1-2 Express 3000 User Manual 61203153L2-20
Service Profile Indentifier (SPID) numbers. In areas where the tele-
phone company supports SPID download, this information automat-
ically downloads to the modem, and the Express 3000 becomes plug-
and-play with the ISDN line.
ANALOG DEVICES SUPPORTED
The Express 3000 supports up to two analog devices such as tele-
phone, FAX machine, or analog modem in addition to the computer
connection for data transmissions. When transmitting data at maxi-
mum throughput over both B channels using Multilink PPP, the
Express 3000 modem automatically detects calls on the analog ports.
Upon detection, the Express 3000 modem adjusts the speed of the data
call to 64 kbps using one B channel and accepts the analog/voice call
on the other B channel. After completing the analog/voice call, the
Express 3000 modem automatically resumes data transfer over both
Bchannels.
REMOTE ACCESS
Remote access gives Management Information Systems (MIS) manag-
ers the flexibility of adjusting the configuration of remote units over
the ISDN line.
EXPRESS 3000 FEATURES
The Express 3000 provides the following features:
• Data rates up to 230.4 kbps—more than six times faster than a V.34
analog modem
• Simple setup with the ADTRAN Express Configuration Soft-
ware™
• Automatic SPID and Switch Type detection using ADTRAN Ex-
pert ISDN (covered under patent number 5,715,241), or Auto SPID
download, where available
•LZS
®
technology from hi/fn™ for up to 4 to 1 compression
• Support for Always On Dynamic ISDN (AO/DI) technology