Specifications

PART 3 – Analog SocketModems Chapter 11 – SocketModem (MT2492SMI)
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342P) 174
Chapter 11 – SocketModem®
(MT2492SMI)
Introduction
The Multi-Tech SocketModem MT2492SMI-xx utilizes the LSI CVxx Controller Based Modem Devices and the LSI CSP104
Silicon Direct Access Arrangement (DAA) to form a 2-chip complete embedded modem. This solution includes a DSP data
pump, modem controller, on-chip RAM and ROM, codec, DAA, analog output, and 24.576 MHz clock input.
The modem accepts standard modem AT commands and provides connect rates up to 56 Kbps full-duplex over the Public
Switched Telephone Network (PSTN) and features a complete set of modem protocols including all ITU-T standard formats
up to V.92.
To provide the most flexibility, the CVxx modem system-side device provides numerous additional features for embedded
modem applications. It includes call progress monitoring through standard result codes, error correction, data compression,
autobaud, and fast connect modes. In addition, because the CVxx modem integrates the DAA, analog features (such as line-
in use and over current detection) are included.
This device is ideal for embedded modem applications due to its simple host interface, small board space, and low power
consumption.
Product Build Options and Ordering Information
Product Description Region
Order this Product

MT2492SMI-92 V.92 Serial Data 5V Regional
MT2492SMI-34 V.34 Serial Data 5V Regional
MT2492SMI-22 V.22bis Serial Data 5V Regional
MT2492SMI-L-92 V.92 Serial Data 3.3V Regional
MT2492SMI-L-34 V.34 Serial Data 3.3V Regional
MT2492SMI-L-22 V.22bis Serial Data 3.3V Regional
Telecom Label
MT2492SMI-LS MT2492SMI-Regulatory Label Regional
Developer Kit
MTSMI-UDK Universal Developer Kit Regional
How to Read the Product Codes in the Table Above:
92 V.92/56K data rate
34 V.34/33.6K data rate
22 V.22bis data rate
L 3.3 Volt Build
LS Telecom Label
UDK Universal Developer Kit
Other Product Codes:
The complete product code may end in .Rx. For example, MT2492SMI-92.Rx.
“R” indicates product revision. “x” is the revision number.
AT Commands Reference Guide
Product Reference Guides Title and Document
Product Number
Fax Commands Voice Commands
SocketModem
(MT2492SMI)
SocketModem MT2492SMI AT Commands
Reference Guide (S000435x)
NA
NA