Multi-Tech Systems MT2456SMI22 manual Product Description Specifications

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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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Contents SocketModem PN S000281A, Version a Country By Email By PhoneContents Product Description Specifications Product DescriptionTechnical Specifications Speed ConversionPhysical Dimensions Maximum Component HeightPin Configurations Pin Descriptions3V DC Power Handling Precautions 3V and 5V Serial SocketModemInput High Input Low Outputs Output High Output LowGeneric Modem Control Commands DTE/DCE CommandsCall Control Commands Modulation Control CommandsError Control and Data Compression Commands Synchronous Access Mode CommandsFast Connect Command Line Side Device Commands22bis Generic Modem Control Commands Soft Reset and Restore ProfileOperating Mode +VCID Caller ID CID+GCI Country of Installation IdentificationRestore Factory Configuration Profile ProcedureLocal Analog Loopback Test Load to Internal RAM22bis DTE/DCE-Modem Interface commands Command EchoQuiet Result Codes Control Result Code FormConnect Ring No Carrier Error No Dial Tone Busy No Answer Extended Result CodesShort 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 VolumeDisplay 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 NumbersDisplay Delayed Numbers NO. Phone Number -DELAYBehavior in Data Mode Syntax *D ExampleReporting Selected Values +PCW Call Waiting Enable+VDR Distinctive Ring 22bis Modulation Control Commands Table of +MS Command Supported Rates+MS Modulation Selection SyntaxEnable/Disable Line Quality Monitor and Auto-Retrain ITU-T or Bell22bis Error Control and Data Compression Commands +ESR Selective Repeat+ETBM Call Termination Buffer Management \B Transmit Break to RemoteResult Codes OK 0 to 5 Error Otherwise Break Control22bis 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 Response22bis S-Parameters Read/Write S-ParameterRegister Function Range/Units Default Summary of S-Parameter DefaultsAscii S0 Number of Rings to Auto-Answer S1 Ring CounterS2 Escape Character S3 Carriage Return CharacterS8 Pause Time For Dial Delay S10 Lost Carrier To Hang Up DelayS12 Escape Prompt Delay EPD S9 Carrier Detect Response TimeS16 Test Mode Bit Mapped Options Status S19 ReservedS20 Reserved S21 V.24/General Bit Mapped Options StatusS24 Sleep Inactivity Timer S25 Delay To DTR OffS26 RTS to CTS Delay S22 Speaker/Results Bit Mapped Options StatusS30 Disconnect Inactivity Timer S27 Bit Mapped Options StatusS28 Bit Mapped Options Status S29 Flash Dial Modifier TimeS38 Delay Before Forced Hang Up S36 Lapm Failure ControlS37 Desired Line Connection Speed S39 Flow Control Bit Mapped Options StatusS41 General Bit Mapped Options Status S48 V.42 Negotiation ActionS82 Break Handling Options S86 Call Failure Reason CodeS91 Pstn Transmit Attenuation Level S95 Extended Result Codes Control22bis Result Codes Table of Result Code DefinitionsCode Message Meaning Connect75TX/1200RX Is enabled Block Diagram Figure A-1. Serial Test/Demo Board Block DiagramProduct Safety and EMC Approvals Country CertificationsCountry Country Code More plannedRegulatory Design Considerations Hardware ConsiderationsSafety SocketModem Placement Qty Name DescriptionMulti-Tech Systems, Inc. Compliance ComplianceTelecom Requirements for the United States Label Content and Format Label Physical CharacteristicsLabeling Continuity and Changes Telecommunications Regulations for CanadaOther Label Requirements New Zealand Telecom Warning Notice Industry CanadaInternational Modem Restrictions EMC, Safety, and R&TTE Directive ComplianceSouth African Statement Index Index