Multi-Tech Systems MT3334SMI manual ModemModule Developer’s Guide Command, Function

Page 34

ModemModule Developer’s Guide

Command:

+FCLASS=<value> <Enter>

Function:

Select Service Class

Values:

0, 1, 2

Default:

0 (data mode)

Result Codes: OK if the command is accepted; ERROR if the parameter value is out of range.

Description: This command configures the Service Class for the modem.

The command options are:

+FCLASS=0 Select Data mode

+FCLASS=1 Select Fax Class 1 operation

+FCLASS=2 Select Fax Class 2 operation

Example: To configure the modem for Class 1 fax operation, enter the command AT+FCLASS=1 and hit Enter. The modem will then accept Class 1 commands.

Command:

+FTS=<time> <Enter>

Function:

Stop Transmission and Wait

Values:

<time> = 0-255 in 10 ms intervals

Default:

0

Result Codes: OK if the command is accepted; ERROR if the parameter value is out of range.

Description:

The +FTS= command causes the modem to stop any transmission, then wait for the

 

amount of time specified by <time>, then send an OK result code to the PC. If this

 

command is entered with the modem on-hook, the ERROR result code is displayed.

 

The main function of +FTS is to enforce the 75+/-20 ms of silent time needed

 

between modulation changes.

Note: The +FTS= command can be entered anywhere in the command string.

Command:

+FTS=? <Enter>

Function:

Display the wait-for-silent time range

Values:

<time> = 0-255 in 10 ms intervals

Default:

0

Result Codes: the current range of values supported by the modem.

Description:

The +FTS=? command causes the modem to display the valid (supported) range of

 

time intervals specified by the +FTS=<time> command.

Command:

+FRS=<time> <Enter>

Function:

Stop Transmission and Wait

Values:

<time> = 0-255 in 10 ms intervals

Default:

0

Result Codes: OK if the command is accepted; ERROR if the parameter value is out of range.

Description:

The +FRS= command causes the modem to listen for a specified amount of silence

 

on the line, then display an OK result code when silence has been present on the

 

line for the amount of time specified. The value <time> is in 10 millesecond intervals.

 

The command terminates when either the specified amount of silent time has been

 

detected, or when the PC sends the modem another character (which is discarded).

 

The modem returns the OK result code in either case. If this command is entered

 

with the modem on-hook, the ERROR result code is displayed. The main function of

 

the +FRS= command is to determine when it is safe to reverse the line and start

 

transmitting.

Note: The +FRS= command can be entered anywhere in the command string.

34

MT3334SMI

Page 33 Page 35
Image 34
Page 33 Page 35
Contents Model MT3334SMI Evaluation Kit Data/Fax Socketed ModemRevision Description PatentsContents Index Introduction and Description Product Description FeaturesIntroduction ModemModule Developer’s GuideTechnical Specifications Introduction and Description1200 bps Physical Dimensions MT3334SMI Physical DimensionsDS1 Test/Demo Board SpecificationsLED1-LED4 Test/Demo Board Block Diagram MT3334SMI Test/Demo Board Block DiagramMT3334SMI Pin-out MT3334SMI PinoutTypical Application MT3334SMI Design Considerations Hardware ConsiderationsCalculating Z for Tip and Ring Traces PC Board Layout ConsiderationsRecommended Transceiver Key MT3334SMI PlacementQty Name Description Telecom Labeling Requirements FCC PartIndustry Canada CS-03 ReregistrationMultiple Listing AT Commands, S-Registers, and Result Codes Repeat Last Command AnswerAT Commands, S-Registers, and Result Codes Return Online to Data Mode Monitor Speaker VolumeMonitor Speaker Mode Result Codes Enable/DisableTone Dialing Modem ResetSr? Read Register Value Result Code FormatDisplay Current Settings Command &Fn Load Factory SettingsAsynchronous Communications Mode Store Current Configuration\Bn Transmit Break Command &Zy=x Store Dialing Command\An Select Maximum MNP Block Size \Jn Data Buffer Control\Qn Flow Control Selection \Nn Error Correction Mode Selection\Tn Inactivity Timer \Vn Protocol Result CodeCommand +ES=n Enable Synchronous Buffered Mode Command %DCn AT Command ControlCommand %En Fallback and Fall Forward Control Enter Setup PasswordRegister Unit Range Default Description RegistersS43 Result Codes Terse Verbose DescriptionClass 1 Fax Commands Class 1 Fax Command Summary Command DescriptionFunction Display Current Class Values Default Data modem Class 1 Fax Commands Fax MOD Modulation Parameter ValuesCommand Result Code MeaningFunction Select Service Class Values Default Data mode ModemModule Developer’s Guide CommandFunction Class 1 Fax Commands +FRS=? Enter+FRM=? Enter Result Codes Flow ControlSample Sessions Action by Command Respone Local Modem Remote PC AT+FRH=3 No Carrier ModemModule Developer’s Guide Class 2 Fax Commands +FAA Class 2 Fax Command ImplementationClass 2 Fax Commands EIA SP-2388 August +FAXERR+FCQ +FBOR+FCR +FDCS +FDCCFax Capability Parameters Current Session Results+FDIS +FDFFCData Compression Format Conversion Current Session Parameters+FECM +FDR+FDT +FET+FLNFC +FK+FLID +FLPL+FREL +FPTS+FRBC +FSPL+FHNG +FTSIMT3334SMI Remote Configuration Changing the Setup Password Basic ProcedureSetup ModemModule User GuideRemote Configuration Changing the Remote Escape CharacterMT3334SMI Troubleshooting Test procedure Local Analog Loopback Test V.54 LoopTroubleshooting Remote Digital Loopback Test V.54 LoopLocal Digital Loopback Test V.54 Loop Local digital loopback testUpgrade Procedure Identify the Current Firmware Version Upgrade OverviewIdentify the Modem Firmware Multi-Tech Web SiteUpgrade Procedure Download the Upgrade FileMulti-Tech BBS Restore Your Parameters Extract the Upgrade FilesUse FlashPro to Upgrade Modem Firmware Clear Your Stored ParamentersAppendixes MT3334SMI Canadian Limitations Notice FCC FAX UpdateInternational Modem Restrictions AppendixesEuropean Directives User Guide Statement EMC, Safety and Terminal Directive ComplianceNew Zealand Telecom Warning Notice Programming the Modem Appendix B Multi-Tech Flash Programming ProtocolIntroduction Handshake SequenceOther programming concerns Other supported boot code commandsModemModule Developer’s Guide Program Sequence Data Record Intel Hex FormatXxxx End of File Record Extended Address RecordEeee Index IndexMT3334SM MT3334SMI MT3334SM
Top Page Image Contents