Break Control | Multi-Tech Systems MT2456SMI22 manual

Chapter 4 - V.22bis Commands

\K	Break Control

Controls the response of the modem to a break received from the DTE or the remote modem or the \B command. The parameter value, if valid, is written to S40 bits 3, 4, and 5.

Syntax \K<value>

Defined Values

<value> Decimal number corresponding to the selected option. The response is different in three separate states.

The first state is where the modem receives a break from the DTE when the modem is operating in data transfer mode:

0Enter on-line command mode, no break sent to the remote modem.

1Clear data buffers and send break to remote modem.

2Same as 0.

3Send break to remote modem immediately.

4Same as 0.

5Send break to remote modem in sequence with transmitted data. (Default)

The second case is where the modem is in the on-line command state (waiting for AT commands) during a data connection, and the \B is received in order to send a break to the remote modem:

0Clear data buffers and send break to remote modem.

1Clear data buffers and send break to remote modem. (Same as 0.)

2Send break to remote modem immediately.

3Send break to remote modem immediately. (Same as 2.)

4Send break to remote modem in sequence with data.

5Send break to remote modem in sequence with data. (Same as 4.) (Default)

The third case is where a break is received from a remote modem during a non-error corrected connection:

0Clears data buffers and sends break to the DTE.

1Clears data buffers and sends break to the DTE. (Same as 0.)

2Send a break immediately to DTE.

3Send a break immediately to DTE. (Same as 2.)

4Send a break in sequence with received data to DTE.

5Send a break in sequence with received data to DTE. (Same as 4.) (Default)

Result Codes OK 0 to 5 ERROR Otherwise

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

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Multi-Tech Systems MT2456SMI22 manual Break Control, Result Codes OK 0 to 5 Error Otherwise

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 Input High Input Low Handling Precautions3V and 5V Serial SocketModem Outputs Output High Output Low Call Control Commands Generic Modem Control CommandsDTE/DCE Commands Modulation Control Commands Fast Connect Command Error Control and Data Compression CommandsSynchronous Access Mode Commands Line Side Device Commands Operating Mode 22bis Generic Modem Control CommandsSoft Reset and Restore Profile +VCID Caller ID CID +GCI Country of Installation Identification Local Analog Loopback Test Restore Factory Configuration ProfileProcedure Load to Internal RAM Quiet Result Codes Control 22bis DTE/DCE-Modem Interface commandsCommand Echo Result Code Form Connect Ring No Carrier Error No Dial Tone Busy No Answer Extended Result Codes Result Codes OK 0 or Short Form Long Form Value in ATXn CommandRlsd Option DTR Option RTS/CTS Option \G Modem-to-Modem Flow Control XON/XOFF+IFC DTE-Modem Local Flow Control +IBC In Band Commands Entering and Exiting In Band Active StateEM Shielding Data Command Hex Codes Description Supported DTE-to-DCE Commands Supported DCE-to-DTE CommandsBand Processing of AT Commands 22bis Call Control Commands DialDial Modifiers Return to On-Line Data Mode Set Tone Dial DefaultResult Code Set Pulse Dial Default Speaker Volume Select Guard Tone Display Current Configuration and Stored ProfilesMSpeaker Control Select Pulse Dial Make/Break Ratio Report Line Signal Quality \V Single Line Connect Message EnableReport Line Signal Level Display Blacklisted Numbers Behavior in Data Mode Display Delayed NumbersNO. Phone Number -DELAY Syntax *D Example +PCW Call Waiting Enable Reporting Selected Values+VDR Distinctive Ring +MS Modulation Selection 22bis Modulation Control CommandsTable of +MS Command Supported Rates Syntax Enable/Disable Line Quality Monitor and Auto-Retrain ITU-T or Bell +ETBM Call Termination Buffer Management 22bis Error Control and Data Compression Commands+ESR Selective Repeat \B Transmit Break to Remote Result Codes OK 0 to 5 Error Otherwise Break Control Reporting Selected Options 22bis Synchronous Access Mode Commands+ESA Configure Synchronous Access Submode +ESA? Transmit Flow Control Thresholds +ITF? 22bis FastConnect Command $F Fast Connect ControlSyntax $Fn Defined Values TRV Tip and Ring Voltage Measurement 22bis Line Side Device CommandsThreshold Adjustments for Telephony Extension Response 22bis S-Parameters Read/Write S-Parameter Summary of S-Parameter Defaults Register Function Range/Units DefaultAscii S2 Escape Character S0 Number of Rings to Auto-AnswerS1 Ring Counter S3 Carriage Return Character S12 Escape Prompt Delay EPD S8 Pause Time For Dial DelayS10 Lost Carrier To Hang Up Delay S9 Carrier Detect Response Time S20 Reserved S16 Test Mode Bit Mapped Options StatusS19 Reserved S21 V.24/General Bit Mapped Options Status S26 RTS to CTS Delay S24 Sleep Inactivity TimerS25 Delay To DTR Off S22 Speaker/Results Bit Mapped Options Status S28 Bit Mapped Options Status S30 Disconnect Inactivity TimerS27 Bit Mapped Options Status S29 Flash Dial Modifier Time S37 Desired Line Connection Speed S38 Delay Before Forced Hang UpS36 Lapm Failure Control S39 Flow Control Bit Mapped Options Status S82 Break Handling Options S41 General Bit Mapped Options StatusS48 V.42 Negotiation Action S86 Call Failure Reason Code S91 Pstn Transmit Attenuation Level S95 Extended Result Codes Control Code Message Meaning 22bis Result CodesTable of Result Code Definitions Connect 75TX/1200RX Is enabled Block Diagram Figure A-1. Serial Test/Demo Board Block Diagram Country Country Code Product Safety and EMC ApprovalsCountry Certifications More planned Regulatory Design Considerations Hardware Considerations Safety SocketModem Placement Qty Name Description Compliance Multi-Tech Systems, Inc. ComplianceTelecom Requirements for the United States Label Content and Format Label Physical Characteristics Telecommunications Regulations for Canada Labeling Continuity and ChangesOther Label Requirements New Zealand Telecom Warning Notice Industry Canada EMC, Safety, and R&TTE Directive Compliance International Modem RestrictionsSouth African Statement Index Index