Multi-Tech Systems MT5600BA-V92 manual Command Make/Break Dial Ratio, Command Sync/Async Mode

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Chapter 2 – AT Commands

Command:

&Pn Make/Break Dial Ratio

Values:

n = 0, 1, 2,3

Default:

Varies by country/region

Description:

&P0

Make/Break dial ratio of 39/61 at 10 pps

 

&P1

Make/Break dial ratio of 33/67 at 10 pps

 

&P2

Make/Break dial ratio of 39/61 at 20 pps

 

&P3

Make/Break dial ratio of 33/67 at 20 pps

Command:

&Qn Sync/Async Mode

 

Note: The MT5600ZDX does not support Sync mode.

Values:

n =0-3, 5, 6

Default:

5

 

Description:

This command is an extension of &M and is used to control which connection modes are

 

permitted. It is used in conjunction with S36 and S48. (See also the \N command.)

 

&Q0

Selects direct asynchronous operation. See &M0.

 

&Q1

Selects synchronous connect mode with asynchronous offline command mode.

 

 

See &M1. Serial interface operation only.

 

&Q2

Selects synchronous connect mode with asynchronous offline command mode;

 

 

enables DTR dialing of directory 0. See &M2. Serial interface only.

 

&Q3

Selects synchronous connect mode with asynchronous offline command mode;

 

 

enables DTR to act as a talk/data switch. See &M3. Serial only.

 

&Q5

The modem will try to negotiate an error-corrected link. It can be configured using

 

 

S36 to determine whether a failure will result in disconnecting or falling back to a

 

 

non-error-correction connection. See also \N3.

 

&Q6

Selects asynchronous operation with speed buffering and no error correction.

 

 

Same as \N0.

Command:

&Rn Clear to Send (CTS) Control

Values:

n = 0 or 1

Default:

1

 

Description:

&R0

Lets the CTS state follow the RTS state when online..

 

&R1

Forces CTS high (ON).

 

Note: This command applies only in synchronous mode.

Command:

&Sn Data Set Ready (DSR) Control

Values:

n = 0 or 1

Default:

0

 

Description:

&S0

Forces DSR high (on) at all times.

 

&S1

Lets DSR go high only during a connection.

Command:

&Tn Local Analog Loopback Test

Values:

n = 0,1

Default:

None

 

Description:

The modem will perform the local analog loopback test if &T1 is selected. The test can be

 

run only when the modem is in asynchronous operation in non-error-correction mode

 

(normal), AT&Q6. To terminate a test in progress, the escape sequence (+++) must be

 

entered first.

 

&T0

Terminates any test in progress. Clears S16.

 

&T1

Starts local analog loopback, V.54 Loop 3. Sets S16 bit 0. If a connection exists

 

 

when this command is issued, the modem hangs up. A CONNECT XXXX message

 

 

is displayed at the start of the test.

Command:

&Vn Display Current Configuration and Statistics for Last Connection

Values:

0,1

Default:

None

Description:

&V0 Displays the current (active) configuration.&V1 Displays statistics for the last

 

connection. Not available in all versions. Note: See also the L5 command. (L5 is not

 

supported in MT5656ZDX).

Multi-Tech Systems, Inc. AT Commands Reference Guide (S000273G)

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Contents MultiModem→ Record of Revisions WarrantyCopyright TrademarksTable of Contents You must press Enter to send the command to the modem IntroductionAT Commands General CommandsCommand Hook Control Command DS=n Dial Stored Telephone NumberCommand En Echo Command Mode Characters Command Information RequestCommand Tone Dialing Command Result Codes Enable/DisableCommand ? Read Register Value Command Result Code FormatCommand Data Carrier Detect DCD Control Command Long Space DisconnectCommand Modem Reset Command Dn Data Terminal Ready DTR ControlCommand Load Factory Settings Command Modem-Initiated Flow ControlCommand V.42bis Data Compression Command V.22bis Guard Tone ControlCommand Clear to Send CTS Control Command Make/Break Dial RatioCommand Sync/Async Mode Command Data Set Ready DSR ControlCommand Select Profile for Hard Reset Command Store Current ConfigurationCommand &Xn Synchronous Clock Source Command &Zn=x Store Telephone NumberCommand Line Signal Quality Command %En Line Quality MonitorCommand Line Signal Level Command PCM Code SelectionCommand \Vn Single Line Connect Message Command \Kn Break ControlCommand \Nn Error Correction Mode Selection Report CommandsValues & Default Country/Region of InstallationCommand +MS= Modulation Selection SubparametersCommand View Numbers in Blacklist Command MNP Extended ServicesCommand Flash Memory Download Command View Delayed NumbersCommand +++ Escape Sequence Escape CommandsCommand *E Escape Remote Configuration Command +PIG=n PCM Upstream Ignore Modem Connection CommandsCommand +PCW=n Call Waiting Enable Command +PQC=n Quick Connect ControlEnable Quick Connect Profile Save Force Full Startup Procedure Next ConnectionResult Code Caller ID Commands Callback Security CommandsCommand +DS Data Compression Data Compression CommandsCommand +DR Data Compression Reporting Command +DS44 V.44 Compression SelectCommand +EFCS Bit Frame Check Sequence Error Control CommandsCommand +EB Break Handling in Error Control Operation Command +ER Error Control ReportingCommand +ETBM Call Termination Buffer Management Command +ESR Selective Reject+ESR? Command +ILRR DTE-Modem Local Rate Reporting DTE CommandsCommand +IFC DTE-Modem Local Flow Control Reported RateCommand +MR Modulation Reporting Control Modulation CommandCommand +IPR Fixed DTE Rate +MCR Report SyntaxBehavior in Data Mode +FCLASS=0 Call Control CommandCommand -STE= Set Telephony Extension Behavior in Voice Mode +FCLASS=8Examples Command &T n Test Command Test CommandNo Carrier ATS86? Configuration Commands Voice CommandsVoice Commands Overview Command +FCLASS=8 Select Voice ModeCommand +VNH= Automatic Hang-up Control Command +FLO Flow ControlCommand +VRX Start Modem Receive Record Voice CommandsCommand +VIP Voice Initialize All Parameters Command +VTS Send Voice TonesCommand +VGT Voice Gain Transmit Playback Volume Command +VTX Start Modem Transmit PlaybackCommand +VGR Voice Gain Receive Record Gain +VTS ExamplesCommand +VLS Analog Source/Destination Selection Command +VIT Voice Inactivity Timer DTE/Modem+VLS Example +VSP=1 Command +VRA Ringback Goes Away TimerTable of +VLS Command Options Label Primitives Description IntervalCommand +VSD Silence Detection Quiet and Silence Command +VRN Ringback Never Appeared TimerCommand +VSM Compression Method Selection Command +VDT Control Tone Cadence Reporting Command +VTD Beep Tone Duration TimerCommand +VDR Distinctive Ring Before using it DescriptionRate +VPR?Command +VGM Microphone Gain Speakerphone CommandsCommand +VSP Speakerphone ON/OFF Command +VGS Speaker GainUnformatted Form Reporting Caller ID Voice Mode Shielded CodesShielded Hex Event Report Description Code Event Number 4 Extended Keypad Dtmf a Command +A8I CI Signal Indication V.8bis CommandsCommand +A8E V.8bis Operation Controls Default Values25bis Commands List Identification Number 25bis ResponsesList Request of Forbidden Number List Request of Stored NumberRegisters Reg Unit Range Default DescriptionRegisters Registers +MR, +ER,+DR, and W commands Result Codes FAX Data+ER None +DR ALT+DR None +ER LapmTerse Verbose Description Terse Verbose Description Setting Country/Regional Codes ExampleIndex Qcpc 46, 47, 48, 49 Index
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MT5600BA-V92 specifications

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