Manuals / Multi-Tech Systems / Computer Equipment / Modem

Multi-Tech Systems MT5600SMI-L34, MT5600SMI-P92 Command %C Enable/Disable Data Compression, Error

Models: MT5600SMI-L32 MT5600SMI-92 MT5600SMI-P34 MT5600SMI-XL34 MT5600SMI-L92 MT5600SMI-34 MT5600SMI-XL92 MT5600SMI-PL34 MT5600SMI-L34 MT5600SMI-32 MT5600SMI-P92 MT5600SMI-P32 MT5600SMI-PL92

1 134

Download 134 pages 50.08 Kb

Page 62

Image 62

		Chapter 5 – AT Commands, S-Registers, and Result Codes
The format of this result code is:
Defined Values:	<type>	An alphanumeric code corresponding to the selected option:
		NONE Data compression is not in use.
	V42B	V.42bis is in use in both directions.
	V42B	RD V.42 bis is in use in receive direction only V42B TD V.42 bis
		is in use in transmit direction only V44 V.44 is in use in both
		directions V44 RD V.44 is in use in receive direction only V44
		TD V.44 is in use in transmit direction only ALT MNP 5
		compression.
Example:	+DR: V42B
Command: %C	Enable/Disable Data Compression
Description:	Enables or disables data compression negotiation. The modem can only
	perform data compression on an error-corrected link. The parameter value,
	if valid, is written to S41 bits 0 and 1.
Defined Values:	%C0	Disables data compression. Resets S46 bit 1.
	%C1	Enables MNP 5 data compression negotiation. Resets S46 bit 1.
	%C2	Enables V.42 bis data compression. Sets S46 bit 1.
	%C3	Enables both V.42 bis and MNP 5 data compression. Sets S46 bit
		1. (Default.)
Result Codes:	OK
	ERROR

Multi-Tech Systems, Inc. SocketModem MT5600SMI Developer’s Guide

62

Image 62

Multi-Tech Systems MT5600SMI-L34, MT5600SMI-XL34, MT5600SMI-P92 manual Command %C Enable/Disable Data Compression, Error

Contents

Embedded Modem MT5600SMI Family Developer’s Guide SocketModem Developers Guide Contents 114 Product Description Region IntroductionProduct Description Features Developers Kit Technical Specifications Sources of Additional Information Physical Dimensions Maximum Component Height Pin Signal Description Name Type Serial Pin ConfigurationsAvailable with or without LED Pins Pin Descriptions for Serial SocketModem Devices 3V DC Power RXD Parallel Pin Configurations Agnd GND Speaker, Call Monitor Handling Precautions Electrical Characteristics Operating Conditions Absolute Maximum Ratings Current and Power Requirements Parallel Host Bus Timing Table Symbol Parameter Min Max UnitsParallel Host Bus Timing Parallel Host Bus Read Parallel Host Bus Write SocketModem Parallel Interface Overview Parallel Interface Registers Register BIT No Name Register Signal Definitions IER Interrupt Enable Register Addr = 1, Dlab = FCR Fifo Control Register Addr = 2, Write Only FCR7 FCR6 IIR Interrupt Identifier Register Addr = Bit Interrupt Pending Bit 7 Divisor Latch Access Bit Dlab LCR Line Control Register Addr = MCR Modem Control Register Addr = Bit Data Terminal Ready DTR Bit 7 RX Fifo Error LSR Line Status Register Addr = THR TX Buffer Transmitter Holding Register Addr = 0, Dlab = MSR Modem Status Register Addr =RBX RX Buffer Receiver Buffer Register Addr = 0, Dlab = Divisor Registers Addr = 0 and 1, Dlab = SCR Scratch Register Addr = Programmable Baud Rates Transmitter Fifo Interrupt Operation Receiver Character Timeout InterruptsReceiver Fifo Interrupt Operation Receiver Data Available Interrupt AT Commands, S Registers, and Result Codes Data Commands Generic Modem Control Commands Command Command Operating Mode Error CorrectionCommand Identification Request Manufacturer Identification Request Model Identification Country of InstallationCommand Restore Factory Configuration Profile Request Revision Identification Command Store Current Configuration Command Local Analog Loopback TestCommand Designate a Default Reset Profile Command &Zn=x Store Telephone Number Procedure Command Plug and Play Vendor ID and Product NumberCommand Load Flash Memory Upload Messages Message Description Command Q Quiet Result Code Control DTE-Modem Interface CommandsCommand E Command Echo Command Result Code Form Command Extended Result Codes Command Flow Control Command Rlsd DCD OptionCommand DTR Option Command +IPR Fixed DTE Rate Command &R RTS/CTS OptionCommand &S DSR Override +IPR? Command +IFC DTE-Modem Local Flow Control Command +ILRR DTE-Modem Local Rate Reporting Dial Modifiers Call Control CommandsCommand D Dial Command T Set Tone Dial Default Command P Set Pulse Dial Default Command Return to Online Data Mode Command AnswerCommand Disconnect Hang-Up Command Select Guard Tone Command Speaker VolumeCommand Speaker Control Command Select Pulse Dial Make/Break Ratio Stored Profile AT&VActive Profile Telephone Numbers Protocol Lapm Compression Command &V1 Display Last Connection StatisticsTermination Reason Local Request Command Report Line Signal Quality Command Single Line Connect Message EnableCommand Report Line Signal Level Behavior in Voice Mode +FCLASS=8 Command -STE= Set Telephony ExtensionBehavior in Data Mode +FCLASS=0 LINE-IN-USE ExamplesAT-STE=7 Connect AT+FCLASS=8 AT-STE=3No Dial Tone AT+VTX Dlep Command +MS Modulation Selection +MS Command Supported RatesPage +MR Modulation Reporting Control Command Select µ-Law or A-Law Codec Type Command Ccitt or Bell Origrqst Error Control CommandsCommand +ES Error Control and Synchronous Mode Selection Origfbk Command +EFCS Bit Frame Check Sequence Command +EB Break Handling in Error Control OperationCommand +ESR Selective Repeat Call Termination Buffer Management Error Control ReportingCommand +ER type Report the Current Error Control Command Transmit Break to Remote Command Break Control Command -K MNP Extended Services Command +DS44 Compression Select Data Compression CommandsCommand +DS Data Compression Command +DR Data Compression Reporting Command %C Enable/Disable Data Compression V.8bis Commands Command +A8E V.8bis Operation Controls Command +A8I CI Signal Indication YYY Command Syntax Diagnostic CommandsCommand #UD Last Call Status Report Data Call State Model AT#UD Last Call Status Report Format Key Values Definition Monitoring an Active ConnectionCallCleared codes from 3.6.4/V.58-1994 Digits DTE-DCE modes Code Definition Call Setup Result Codes Code DefinitionMultimedia Modes Code Definition V.34 Info bit report Bits Source bits Definition 10. errorControl Active from 3.5.2/V.58 Value Description 11. compressionActive from 3.2.2/V.58 Value Description Example Modem Response and Usage Command Enable Cellular Power Level Adjustment Compatibility CommandsCommand Leased Line Operation Command Initial Cellular Power Level Setting Command $F FastConnect Control FastConnect Commands92 +P and -Q Commands Command +PCW Call Waiting Enable Modem-on-Hold Timer Initiate Modem-on-Hold Modem-on-Hold Hook Flash Phase 1 and Phase 2 ControlPCM Upstream Ignore Use Short Sequence Force Full Startup Procedure on Next ConnectionEnable Quick Connect Profile Save Registers Wait Time for Carrier, Silence, or Dial Tone General Bit-Mapped Options Status Indicates the status Test Mode Bit-Mapped Options Status Indicates the testCarrier Detect Response Time Supported for backward Reserved Register Unit Range Default Description S21 Register Unit Range Default Description S27 Register Unit Range Default Description S36 Flow Control Bit-Mapped Options Status Register Unit Range Default Description S41 General Bit-Mapped Options Status. Indicates the status Register Unit Range Default Description S86 Pstn Transmit Attenuation Level. In non-PCM modes V.90 or Register Unit Range Default Description S210 Result Codes Short Form Long Form +ER L APM 196 +MRR 197 198 199 200 201 202 203 204 205 206 207 208 209 Modem-to-DTE Receive Data Stream Fax I/O ProcessingDTE-to-Modem Transmit Data Stream Characters Detected Action Taken Fax Answering Fax Mode SelectionFax Origination Fax Control Transmission Fax Control Reception Fax Data Transmission Fax Data Reception Mode Commands Commands and ParametersMode Entry Commands Fax Class 1 and Fax Class 1.0 Modulation Modes and Rates Mod Modulation Training Modulation Mode and RateTransmit Facsimile Command +FRM Receive Facsimile Command FTH Transmit Data with Hdlc Framing Command +FRH Receive Data with Hdlc Framing Command +FCL Carrier Loss Timeout Service Class 1 CommandsCommand +FAR Adaptive Reception Control Double Escape Character Replacement DTE Inactivity Timeout Command +FMM? Request Model Identification Command +FPR Fixed DTE RateCommand +FMI? Request Manufacturer Identification Command +FMR? Request Revision Identification Command +FLO Flow Control Examples Fax Class 1 Calling Sequence Transmitting a Single Fax Class 1 Answering Sequence Receiving a Single Voice Voice Commands OverviewVoice Commands Function Configuration DLE Shielded Event Codes Sent to the DTE 102 DLE Shielded Codes Sent to the Modem DCECan Command +VNH Automatic Hang-up Control Voice Configuration CommandsCommand +FCLASS=8 Select Voice Mode +VNH Command Behavior Command Response Command +VRX Start Modem Receive Record Basic Voice CommandsCommand +VIP Voice Initialize All Parameters Command +VTS Send Voice Tones Example Command +VTX Start Modem Transmit PlaybackCommand +VGR Voice Gain Receive Record Gain 105 106 Command +VGT Voice Gain Transmit Playback VolumeCommand +VIT Voice Inactivity Timer DTE/Modem Label Primitives Description Command +VLS Analog Source/Destination Selection+VLS Command Options +VSP=1 S1T 108 109 Events Detectable in the Voice Mode perEvent Number Event Description Event Reporting Command +VSD Silence Detection Quiet and Silence Command +VRA Ringback Goes Away TimerCommand +VRN Ringback Never Appeared Timer 110 Command +VSM Compression Method Selection 111 112 Command +VTD Beep Tone Duration TimerCommand +VDR Distinctive Ring Command +VDT Control Tone Cadence Reporting 113 Country Country Code 114 Test/Demo Board Components 115 5V / 3.3V Jumper JP6 Serial Test/Demo Board Block DiagramSerial Test/Demo Board Block Diagram 116 117 Parallel Test/Demo Board Block DiagramParallel Test/Demo Board Block Diagram Telecom Certifications Approvals Product Safety and EMCSafety Certifications EMC Approvals 119 Regulatory Design ConsiderationsHardware Considerations EMC 120 121 Other Design ConsiderationsPC Board Layout Guidelines 122 SafetyElectromagnetic Interference EMI Considerations 5V Tolerant Inputs for 3.3V Modules 123 124 Regulatory ComplianceRegulatory Requirements for the United States MT5600SMI 125 Current Label Content and Format as of August 126 Regulatory Requirements for Canada 127 IC XXXXXX-ZZZZZZZZ Where 128 129 New Zealand Telecom Warning NoticeSouth African Statement 130 EMC, Safety, and R&TTE Directive ComplianceInternational Modem Restrictions Index 131 Enable quick connect profile save command -QCPS 132 Serial Test/Demo Board Components 133 134