Multi-Tech Systems MMV1600 Returning to, After Dial, Command Execution, Escape, Sequences

Page 89

pause is desired, more than one comma may be entered

,consecutively, with each one causing a two second pause. You also have the option of changing the length of the pause of the comma, from two seconds to any other value from 0 up to 255 seconds. This is accomplished by accessing S-Register S8, which we explain in Appendix E.

 

Each comma used in a dialing command does count as one of the forty allowed characters.

Returning to

A semicolon (;), when entered as the last character of a dialing

Command

command, will cause the command modem to return to the

Mode

Command mode immediately after executing the command,

After Dial

instead of waiting for a carrier signal and going on line.

Command

 

 

Execution

For example, entering ATDT5551212; would simply tone-dial the number, and do nothing

afterwards except go back into

; Command mode. This can be useful in dialing applications where command

modem data transfer is not desired, such as voice communications.

Escape

It is possible to cause the command modem to enter the com-

Sequences-

mand mode after the command modem has gone on-line

Entering

without disconnecting the call. This is accomplished by entering

Command

an Escape code. The default Escape code is three plus

Mode While

signs (+++). You need not hit Return.The Escape code character

Still On-Line

may be changed by accessing S-Register S2 which is explained in Appendix E.

+++There is a safety factor built into the command modem, that requires about one second of silent time before and after the Escape code +++ is entered, to prevent accidental escapes into the Command mode. The command modem will not release the telephone line until it receives an ATH or ATZ command, or it detects loss of carrier.

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Contents MultiMux Page Record of Revisions RevisionDescription MultiMux #MMV1600C #MMV3200CTable of Contents Operating Procedures CommandsTroubleshooting Service, Warranty and Tech SupportTables AboutThisManual Service, Warranty and Tech Support 1.1 Statistical Multiplexing BackgroundDescription of Statistical Multiplexing Product Description CommunicationsMultiMux MMV1600/3200 Series Block Diagram Page Networking System Features Voice/FaxDual Composite Links Dynamic Load BalanceCommand Modem Channel SwitchingDiagnostics Parameter MemorySynchronous Data Channel Dynamic BufferingResponse Time Control DOC Terminal Equipment FCC Regulations for Telephone Line InterconnectionAU7USA-18883-DE-N DSU AU7USA-20328-MD-ESystem Control Specifications Async Data ChannelsComposite Link Internal DSUElectrical/Physical Voice ChannelsCompatibility DtmfModel Description Configuration DescriptionConfiguration Configuration 1 Composite Link Configuration Configuration 1 Local Site Channel ParametersConfiguration 1 Remote Site Channel Parameters Configuration 2 Composite Link Configuration Remote Site Configuration 3 Remote Site 2 Channel Parameters Configuration 3 Local Site Channel ParametersConfiguration 3 Remote Site 1 Channel Parameters Configuration 4 Local Site Voice/Fax Channel Parameters Configuration 4 FXO to FXSConfiguration 4 Remote Site Voice/Fax Channel Parameters Configuration 5 E&M Configuration 5 Remote Site Voice/Fax Channel Parameters Configuration 5 Local site Voice/Fax Channel ParametersConfiguration 6 FXS to FXS Configuration 6 Remote Site Voice/Fax Channel Parameters Configuration 6 Local Site Voice/Fax Channel ParametersRemote Site Configuration 7 Remote Site Voice/Fax Channel Parameters Configuration 7 Local Site Voice/Fax Channel ParametersConfiguration 8 LAN to LAN Page Cabling Procedure InstallationProcedureStepProcedure External Modem/DSU with RS232C InterfaceV.35 Interface Step ProcedureSync Data Channel Port B only Async ChannelComposite Link Cabling Supervisory Console Configuration ProcedureCommand Modem Step Procedure Voice/Fax Channels Step Procedure Async ChannelsPage ATC1B4800P1F1E0 Command SummaryType Command Description $DSUACL SNGA..H$DSUBCL $DSUASP#MA CommandDescriptionGeneral Commands Store New H command menu is as follows General HelpParameters HelpH5 menu is as follows H4 menu is as followsH6 menu is as follows H7 menu is as followsChannel Parameter Commands DTR ENQ/ACKMLA/B/D SB2 SB1$DSUCL Composite Link Speed and Clocking Commands$DSUSP $ Muxacli$MUXB Additional Composite Link CommandsList Composite Retransmit TimerReport #RBxxxxxVoice/Fax Channel Commands Command Level Silence Suppression WireLocal Interface ATV1/2LIFXOATV1/2LIFXSL Test CommandsATV1/2RIFXO ATV1/2RIFXSGT12 Command Modem CommandsT11 MultiMux Operating Procedures MultiMuxOperatingProceduresConfiguration of Port a Composite Link Configuration of Port B Composite LinkConfiguration of Port B Sync Data Voice/Fax Operating Procedures Voice/Fax Operating ProceduresCommand Modem Access on Command Modem Operating ProceduresCommand Modem Operating Procedures Command modem operation and put Introduction ImportanceofCompositeStatisticsTestCables TroubleshootingGuideData Troubleshooting Guide RD LED on RD OFF Voice/fax channel Voice/Fax Troubleshooting GuideCannot communicate Local Loop Test #4 ChannelDeviceTestingChannel Device Testing Procedure Remote Digital Loop Test #5 DSUandCommunicationsLineTestingDSU and Communications Line Testing Procedure Watch DOG Test Passed MultiMuxFunctionalTestingProceduresMultiMux Functional Testing Procedures VOICE/FAX Loopback Test #12 Voice/FaxChannelTestingVoice/Fax Channel Testing Procedure Sync Data Channel Testing Procedure SyncDataChannelTestingService, Warranty and Tech Support Repair Procedures for International Distributors AppendixA Ascii Character Code/Hex/Decimal Conversion ChartAppendix B Signal Information Negative PositiveAppendix C Cabling DiagramsDCE to DTE cabling Command Port CablesComposite Link Cabling RJ48 Cabling for Internal DSU Voice/Fax Channel Connectors RJ45 Spade Lug Wire Color FunctionDescription FXO Description FXS Description I-V Voice/Fax Channel CableAnswer a Command Name DefaultRepeat LastATH0 ATH1ATO ATQ1Register ATD5551212RRead or WriteView Active Configuration displaysUser Profiles Store ActiveATX2 ATX0ATX1 Mode While Command ExecutionReturning to After DialAppendix E Table E-1. LED IndicatorsIndicator Description FCR LED Indicators DescriptionBack Panel Power Connector ON/OFF SwitchBPS Modem DIAL-UP Line Connector Command Port TERMINAL/PC ConnectorVOICE/FAX Channel 2 FXO Connector VOICE/FAX Channel 2 FXS ConnectorVOICE/FAX Channel 1 E&M Connector VOICE/FAX Channel 1 FXS ConnectorChannel # Channel Board Number of Channels SwitchRS232C/V.35 Shunt Flow Control Background Appendix FOff Printer pacing and Flow Control Glossary of Terms Page Format Page Parameter Page Page Symbols DSU DOCLads External Composite LinkFXO FXS Load DSU Factory Defaults Command List Channel Parameters CommandMultiMux Functional Testing Procedure Link ProtocolPstn PDNREN RJ48SStdm Stop Bit Command SB1-SB2Transmit XMT Indicator Voice/Fax Input Level Gain Command Voice/Fax Channel Testing ProcedureWord Length Select Command WL5-8 Voice/Fax Channels