Product Description Specifications | Multi-Tech Systems MT2456SMI22

Chapter 1 – Product Description and Specifications

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.

Multi-Tech Systems, Inc. MT2456SMI-22 SocketModem Developer’s Guide

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Multi-Tech Systems MT2456SMI22 manual Product Description Specifications

Contents

SocketModem PN S000281A, Version a Country By Email By Phone Contents Product Description Specifications Product Description Technical Specifications Speed Conversion Physical Dimensions Maximum Component Height Pin Configurations Pin Descriptions 3V DC Power Handling Precautions 3V and 5V Serial SocketModemInput High Input Low Outputs Output High Output Low Generic Modem Control Commands DTE/DCE CommandsCall Control Commands Modulation Control Commands Error Control and Data Compression Commands Synchronous Access Mode CommandsFast Connect Command Line Side Device Commands 22bis Generic Modem Control Commands Soft Reset and Restore ProfileOperating Mode +VCID Caller ID CID +GCI Country of Installation Identification Restore Factory Configuration Profile ProcedureLocal Analog Loopback Test Load to Internal RAM 22bis DTE/DCE-Modem Interface commands Command EchoQuiet Result Codes Control Result Code Form Connect Ring No Carrier Error No Dial Tone Busy No Answer Extended Result Codes Short Form Long Form Value in ATXn Command Rlsd OptionResult Codes OK 0 or DTR Option \G Modem-to-Modem Flow Control XON/XOFF RTS/CTS Option+IFC DTE-Modem Local Flow Control Entering and Exiting In Band Active State +IBC In Band CommandsEM Shielding Data Supported DCE-to-DTE Commands Command Hex Codes Description Supported DTE-to-DCE CommandsBand Processing of AT Commands Dial 22bis Call Control CommandsDial Modifiers Set Tone Dial Default Result Code Set Pulse Dial DefaultReturn to On-Line Data Mode Speaker Volume Display Current Configuration and Stored Profiles MSpeaker ControlSelect Guard Tone Select Pulse Dial Make/Break Ratio \V Single Line Connect Message Enable Report Line Signal LevelReport Line Signal Quality Display Blacklisted Numbers Display Delayed Numbers NO. Phone Number -DELAYBehavior in Data Mode Syntax *D Example Reporting Selected Values +PCW Call Waiting Enable+VDR Distinctive Ring 22bis Modulation Control Commands Table of +MS Command Supported Rates+MS Modulation Selection Syntax Enable/Disable Line Quality Monitor and Auto-Retrain ITU-T or Bell 22bis Error Control and Data Compression Commands +ESR Selective Repeat+ETBM Call Termination Buffer Management \B Transmit Break to Remote Result Codes OK 0 to 5 Error Otherwise Break Control 22bis Synchronous Access Mode Commands +ESA Configure Synchronous Access SubmodeReporting Selected Options +ESA? Transmit Flow Control Thresholds +ITF? $F Fast Connect Control 22bis FastConnect CommandSyntax $Fn Defined Values 22bis Line Side Device Commands Threshold Adjustments for Telephony ExtensionTRV Tip and Ring Voltage Measurement Response 22bis S-Parameters Read/Write S-Parameter Register Function Range/Units Default Summary of S-Parameter DefaultsAscii S0 Number of Rings to Auto-Answer S1 Ring CounterS2 Escape Character S3 Carriage Return Character S8 Pause Time For Dial Delay S10 Lost Carrier To Hang Up DelayS12 Escape Prompt Delay EPD S9 Carrier Detect Response Time S16 Test Mode Bit Mapped Options Status S19 ReservedS20 Reserved S21 V.24/General Bit Mapped Options Status S24 Sleep Inactivity Timer S25 Delay To DTR OffS26 RTS to CTS Delay S22 Speaker/Results Bit Mapped Options Status S30 Disconnect Inactivity Timer S27 Bit Mapped Options StatusS28 Bit Mapped Options Status S29 Flash Dial Modifier Time S38 Delay Before Forced Hang Up S36 Lapm Failure ControlS37 Desired Line Connection Speed S39 Flow Control Bit Mapped Options Status S41 General Bit Mapped Options Status S48 V.42 Negotiation ActionS82 Break Handling Options S86 Call Failure Reason Code S91 Pstn Transmit Attenuation Level S95 Extended Result Codes Control 22bis Result Codes Table of Result Code DefinitionsCode Message Meaning Connect 75TX/1200RX Is enabled Block Diagram Figure A-1. Serial Test/Demo Board Block Diagram Product Safety and EMC Approvals Country CertificationsCountry Country Code More planned Regulatory Design Considerations Hardware Considerations Safety SocketModem Placement Qty Name Description Multi-Tech Systems, Inc. Compliance ComplianceTelecom Requirements for the United States Label Content and Format Label Physical Characteristics Labeling Continuity and Changes Telecommunications Regulations for CanadaOther Label Requirements New Zealand Telecom Warning Notice Industry Canada International Modem Restrictions EMC, Safety, and R&TTE Directive ComplianceSouth African Statement Index Index