B Technical Specifications

Appendix B:Technical Specifications

The MultiModemZDX modem meets the following specifications:

Trade Name

MultiModemZDX™

Model Number

MT5600ZDX, MT5600ZDXe, MT5600ZDXV, and

 

MT5600ZDXVe

Client-to-Server

V.90 speeds when accessing a V.90 server (actual

Data Rates

speed depends on server

 

capabilities and line conditions)*

Client-to-Client

33,600; 31,200; 28,800; 26,400; 24,000; 21,600; 19,200; 16,800;

Data Rates

14,400; 12,000; 9600; 7200; 4800; 2400; 1200; 0-300 bps

Fax Data Rates

14,400; 9600; 7200; 4800; 2400; 300 bps

Data Format

Serial, binary, asynchronous

Commands

AT, TIA/EIA TR.29, Class 2

Command Buffer

60 characters

Modem Compatibility

ITU-T V.90, V.42, V.42bis, V.34, V.34bis, V.32, V.32bis,

 

V.32terbo, V.22, V.22bis, V.21 & V.23 in international

 

versions, Bell 212A and 103/113

Fax Compatibility

ITU-T Group 3, Class 1 and 2, T.30, T.4, V.29, V.27ter, V.21,

 

V.17, and TIA/EIA TR29.2

Error Correction

ITU-T V.42 (LAP-M or MNP 3 and 4)

Data Compression

ITU-T V.42bis (4:1 throughput), MNP 5 (2:1 throughput)

Speed Conversion

Serial port data rates adjustable to 300; 1200; 2400; 4800;

 

9600; 19,200; 38,400; 57,600; 115,200; and 230,400 bps

Mode of Operation

Fax online modes, full duplex over dial-up, AT command

 

mode

Flow Control

XON/XOFF (software), RTS/CTS (hardware)

Intelligent Features

Plug and play, AT command compatible, autodial, redial,

 

repeat dial, pulse or tone dial, dial pauses, auto answer,

 

caller ID, 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 selection, keyboard-controlled modem

 

options, non-volatile memory, storage of up to four

 

command strings or telephone numbers up to 31 characters

 

each

*Though these modems are capable of 56K bps download performance, line impairments, public telephone infrastructure and other external technological factors currently prevent maximum 56K bps connections.

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