
5 MT9234ZBA-USB-CDC-XR User Guide
Thank you for using the MultiModem ZBA-USB modem. Your MultiModem product data/fax modem supports
remote configuration and dial-up connections. It offers V.34/33.6K fax and Error Correction Mode that reduces fax
transmission time by more than half when compared to traditional fax modems. In addition, these modems are
globally approved for use in many countries around the world.
Package Contents
The MultiModem USB package contains:
● A MultiModem data/fax modem
● A set of four self-adhesive plastic feet
● One USB cable
● One modular telephone cable
Other Documentation
The AT Commands for the MultiModem are described in a separate reference guide. You can find this guide on
the Multi-Tech website.
Technical Specifications
Your MultiModem ZBA-USB-CDC modem has the following specifications.
Server-to-Client Data Rates
V.90 speeds when accessing a V.90 or V.92 server (actual speed depends on server
capabilities and line conditions)
Client-to-Server Data Rates
Up to 50Kbps when accessing a V.92 server (actual speed depends on server capabilities
and line conditions); otherwise, the same as client-to client data lines.
Client-to-Client Data Rates
33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800, 14400, 12000, 9600, 7200,
4800, 2400, 1200, 0-300 bps
33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800, 14400, 12000, 9600, 7200,
4800, 2400, 1200, 0-300 bps
ITU-T V.92, V.90, V.34 enhanced, V.34, V.34bis, V.32, V.32bis, V.22; Bell 212A and 103;
ITU-T V.21, V.42, V.42bis, V.44
ITU-T “Super” Group 3, Class 1.0, 2.0, 2.1, T.4, T.30, V.21, V.27ter, V.29, V.34, V.17; TIA/EIA
578 Class 1, 2, TR29.2
ITU-T V.44 (4:1 throughput), V.42bis (4:1 throughput), MNP 5 (2:1 throughput)
XON/XOFF (software), RTS/CTS (hardware)
Plug and play; fully AT command compatible; autodial, redial, repeat dial; pulse or tone
dial; dial pauses; auto answer; caller ID; EIA extended automode; adaptive line probing;
automatic symbol and carrier frequency during start-up, retrain, and rate renegotiation;
DTMF detection; call status display, auto-parity and data rate selections; keyboard-
controlled modem options; non-volatile memory; on-screen displays for modem option
parameters; command lines of up to 40 characters each; remote configuration.
-12 dBm (Euro/NAM) – varies by country/region setting
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