Multi-Tech Systems MT2456SMI22 manual Figure A-1. Serial Test/Demo Board Block Diagram

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Appendix A – Test/Demo Card Information

Appendix A – Test/Demo Card

Information

Block Diagram

		Power
		Switch
		Power	Power
		Supply	Power
		Supply	Connector
Speaker	Volume		Connector
Speaker	Volume
DS1	Control
	Modem	Transceiver	DB-25
	Module	Transceiver	DB-25
	Module	(RS-232)	RS-232
		(RS-232)	RS-232
		Tip/Ring	RJ-11
		Tip/Ring	Connector
		Fuse	Connector

Figure A–1. Serial Test/Demo Board Block Diagram

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

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Contents SocketModem Country By Email By Phone PN S000281A, Version aContents Product Description Product Description SpecificationsSpeed Conversion Technical SpecificationsMaximum Component Height Physical DimensionsPin Descriptions Pin Configurations3V DC Power Outputs Output High Output Low Handling Precautions3V and 5V Serial SocketModem Input High Input LowModulation Control Commands Generic Modem Control CommandsDTE/DCE Commands Call Control CommandsLine Side Device Commands Error Control and Data Compression CommandsSynchronous Access Mode Commands Fast Connect Command+VCID Caller ID CID 22bis Generic Modem Control CommandsSoft Reset and Restore Profile Operating ModeIdentification +GCI Country of InstallationLoad to Internal RAM Restore Factory Configuration ProfileProcedure Local Analog Loopback TestResult Code Form 22bis DTE/DCE-Modem Interface commandsCommand Echo Quiet Result Codes ControlExtended Result Codes Connect Ring No Carrier Error No Dial Tone Busy No AnswerDTR Option Short Form Long Form Value in ATXn CommandRlsd Option Result Codes OK 0 or+IFC DTE-Modem Local Flow Control RTS/CTS Option\G Modem-to-Modem Flow Control XON/XOFF EM Shielding Data +IBC In Band CommandsEntering and Exiting In Band Active State Band Processing of AT Commands Command Hex Codes Description Supported DTE-to-DCE CommandsSupported DCE-to-DTE Commands Dial Modifiers 22bis Call Control CommandsDial Speaker Volume Set Tone Dial DefaultResult Code Set Pulse Dial Default Return to On-Line Data ModeSelect Pulse Dial Make/Break Ratio Display Current Configuration and Stored ProfilesMSpeaker Control Select Guard ToneDisplay Blacklisted Numbers \V Single Line Connect Message EnableReport Line Signal Level Report Line Signal QualitySyntax *D Example Display Delayed NumbersNO. Phone Number -DELAY Behavior in Data Mode+VDR Distinctive Ring +PCW Call Waiting EnableReporting Selected Values Syntax 22bis Modulation Control CommandsTable of +MS Command Supported Rates +MS Modulation SelectionITU-T or Bell Enable/Disable Line Quality Monitor and Auto-Retrain\B Transmit Break to Remote 22bis Error Control and Data Compression Commands+ESR Selective Repeat +ETBM Call Termination Buffer ManagementBreak Control Result Codes OK 0 to 5 Error Otherwise+ESA? 22bis Synchronous Access Mode Commands+ESA Configure Synchronous Access Submode Reporting Selected Options+ITF? Transmit Flow Control ThresholdsSyntax $Fn Defined Values 22bis FastConnect Command$F Fast Connect Control Response 22bis Line Side Device CommandsThreshold Adjustments for Telephony Extension TRV Tip and Ring Voltage MeasurementRead/Write S-Parameter 22bis S-ParametersAscii Summary of S-Parameter DefaultsRegister Function Range/Units Default S3 Carriage Return Character S0 Number of Rings to Auto-AnswerS1 Ring Counter S2 Escape CharacterS9 Carrier Detect Response Time S8 Pause Time For Dial DelayS10 Lost Carrier To Hang Up Delay S12 Escape Prompt Delay EPDS21 V.24/General Bit Mapped Options Status S16 Test Mode Bit Mapped Options StatusS19 Reserved S20 ReservedS22 Speaker/Results Bit Mapped Options Status S24 Sleep Inactivity TimerS25 Delay To DTR Off S26 RTS to CTS DelayS29 Flash Dial Modifier Time S30 Disconnect Inactivity TimerS27 Bit Mapped Options Status S28 Bit Mapped Options StatusS39 Flow Control Bit Mapped Options Status S38 Delay Before Forced Hang UpS36 Lapm Failure Control S37 Desired Line Connection SpeedS86 Call Failure Reason Code S41 General Bit Mapped Options StatusS48 V.42 Negotiation Action S82 Break Handling OptionsS95 Extended Result Codes Control S91 Pstn Transmit Attenuation LevelConnect 22bis Result CodesTable of Result Code Definitions Code Message Meaning75TX/1200RX Is enabled Figure A-1. Serial Test/Demo Board Block Diagram Block DiagramMore planned Product Safety and EMC ApprovalsCountry Certifications Country Country CodeHardware Considerations Regulatory Design ConsiderationsSafety Qty Name Description SocketModem PlacementTelecom Requirements for the United States ComplianceMulti-Tech Systems, Inc. Compliance Label Physical Characteristics Label Content and FormatOther Label Requirements Telecommunications Regulations for CanadaLabeling Continuity and Changes Industry Canada New Zealand Telecom Warning NoticeSouth African Statement EMC, Safety, and R&TTE Directive ComplianceInternational Modem Restrictions Index Index