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Chapter 1 – Product Description and Specifications
Multi-Tech Systems, Inc. MT2456SMI-22 SocketModem Developer’s Guide 4
Chapter 1 – Product Description and
Specifications
The Multi-Tech SocketModem supports analog data modem operation with V.22bis Fast Connect, V.42bis data
compression, and V.80 synchronous access mode. The SocketModem is a space-efficient (1" × 2.5"), embedded
modem that is ready-to-integrate into your applications; therefore, dramatically reducing development time and
costs for system designers. The SocketModem also complies with telecom requirements globally and can be
shipped worldwide.
This guide provides the information needed to effectively integrate the SocketModem into your equipment. It also
includes the AT commands for the configuration and control of a data modem and the result codes that the
modem issues in response to the commands.
Product Description
The MT2456SMI SocketModem is a standard 64-pin modem used for integrating data communications. It is a
single-port 5V or 3.3V modem that integrates a modem controller, DSP, and DAA in a 1" x 2.5" form factor and
communicates to a host controller via an asynchronous serial interface.
A SocketModem kit is available. It includes one development board with an RS-232 DB-25 connector, wall power
adapter, RJ-11 jack, and RS-232 cable.