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Chapter 1 –Product Overview and Specifications
6
Multi‐Tech Systems, Inc. MT9234ZBA‐USB User Guide
Package Contents
The MultiModem USB package contains:
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A MultiModem data/fax modem
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A set of four self‐adhesive plastic feet
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One USB cable
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One modular telephone cable
AT Commands Info
The AT commands are published in a separate Reference Guide. Download this guide from the Multi‐Tech website.
Technical Specifications
Your MultiModem ZBA‐USB modem has the following specifications:
Trade Name
MultiModem® ZBA
Model Number
MT9234ZBA‐USB
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.
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
2400, 1200, 0‐300 bps
Fax Data Rates
33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800, 14400, 12000, 9600, 7200, 4800,
2400, 1200, 0‐300 bps
2400, 1200, 0‐300 bps
Data Format
Serial, binary, asynchronous
Modem Compatibility
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
V.21, V.42, V.42bis, V.44
Fax Compatibility
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
578 Class 1, 2, TR29.2
Error Correction
ITU‐T V.42
Data Compression
ITU‐T V.44 (4:1 throughput), V.42bis (4:1 throughput), MNP 5 (2:1 throughput)
Flow Control
XON/XOFF (software), RTS/CTS (hardware)
Intelligent Features
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
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
Command Buffer
40 characters
Transmit Level
‐12dBm (Euro/NAM) – varies by country/region setting
Lightning Protection
FCC Part 68 A/B surge
Frequency Stability
±0.01%
Receiver Sensitivity
‐43 dBm under worst‐case conditions
AGC Dynamic Range
43 dB
Connectors
USB connector; two RJ‐11 phone jacks
Cables
One RJ11 phone cable
One USB cable
Note: Any cables connected to the computer should be shielded to reduce interference.
Diagnostics
Power‐on self test, local analog loop, local digital loop, remote digital loop.
Environmental
Temperature range ‐40°– 50°C (‐32°–120°F); humidity range 20–90% (non‐condensing)
Dimensions
10.9 cm wide x 14.5 cm long x 2.5 cm high (4.3” x 5.7” x 1.10”)
Weight
227 g (8 oz)
Limited Warranty
2 year