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ModemModule Developer's Guide
Introduction
The MT3334SMI socket modem provides a fully-integrated data and fax communications design for
communications over wide area networks using dial-up phone lines and the Internet.
This guide provides the Service Class 1 standard defining the commands that the developer can use
to configure and control a fax/data modem and the responses (result codes) that the fax/data modem
issues in response to the commands. This guide also provides the developer with specific Class 2 fax
command protocol used to control the sending and receiving of faxes.
Product Description
The MT3334SMI is a standard 64-pin Socket Modem (Figure 1-1 illustrates the MT3334SMI in
relationship to Multi-Tech's Demo board) used for integrating data and fax communications. It
provides:
•
Low power consumption
•
A serial TTL level interface
•
Full-featured fax and datacomm operation
•
A very small footprint for embedded applications
Features
•
Complete fax / modem solution: includes the controller, data pump, and DAA
•
Modem downloads at 33.6 Kbps via enhanced V.34 server and uploads at 33.6 Kbps
(enhanced V.34)
•
Supports V.42 error correction with V.42bis or MNP Class 5 data compression
•
Supports industry-standard AT-style commands
•
Standard TTL serial interface supporting DTE transfer speeds to 230.4 Kbps
•
Remote configuration, diagnostic tests, Distinctive Ring, 3-number storage for automatic
dialing, and Flash memory for firmware updates.
•
Includes NOVRAM for stored parameters
6
Figure 1-1. MT3334SMI and Demo Board
MT3334SMI
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