Multi-Tech Systems MT5600BA, MT5600BL Data Terminal Ready DTR Control, Error Correction Modes

Page 46

MultiModemII User Guide

Command:	&Dn		Data Terminal Ready (DTR) Control
Values:			n = 0, 1, 2, or 3
Default:		2
Description:			This command interprets the high to low transition of the DTR
			signal sent by the computer according to the supplied param-
			eter. The action taken depends on the current &Q setting.
	&D0		&Q0, &Q5, &Q6: DTR is ignored (assumed high). Allows op-
			eration with computers that do not provide DTR.
			&Q1, &Q4: DTR drop causes the modem to hang up. Autoan-
			swer is not affected.
			&Q2, &Q3: DTR drop causes the modem to hang up. Autoan-
			swer is inhibited.
	&D1		&Q0, &Q1, &Q4, &Q5, &Q6: DTR drop is interpreted by the
			modem as if the asynchronous escape sequence had been en-
			tered. The modem returns to asynchronous command state
			without disconnecting.
			&Q2, &Q3: DTR drop causes the modem to hang up. Autoan-
			swer is inhibited.
	&D2		&Q0–&Q6: DTR drop causes the modem to hang up. Autoan-
			swer is inhibited.
	&D3		&Q0, &Q1, &Q4, &Q5, &Q6: DTR drop causes the modem to
			perform a soft reset as if the Z command were received. The &Y
			setting determines which profile is loaded.
			&Q2, &Q3: DTR drop causes the modem to hang up. Autoan-
			swer is inhibited.
			&Q5 or &Q6 and +FCLASS=1 or +FCLASS=2: Same as for &Q0.
Command:	&En		V.42 Error Correction Modes
Values:			n = 0, 1, or 2
Default:		1
Description:	&E0		V.42 non-error correction mode (V.42 disabled).
	&E1	V.42 auto-reliable mode.
	&E2	V.42 reliable mode (V.42 enabled).
Command:	&En		Modem-Initiated Flow Control
Values:			n = 3, 4, or 5
Default:		4
Description:	&E3		Flow control disabled.
	&E4	CTS/RTS hardware flow control.
	&E5	XON/XOFF software flow control.

			Note: See also the &K command.

Command:	&Fn		Load Factory Settings
Values:			n = 0 or 1
Default:		None
Description:	&F0		Load factory configuration 0.
	&F1	Load factory configuration 1.

			Note: See also the Z command.

38

Image 46

Contents Model MT5600BA Model MT5600BL Record of Revisions FCC Part Quick Start Using the Front PanelIntroduction MultiModemII User GuideSolving Problems AT Commands, S-Registers & Result CodesRemote Configuration Callback SecurityAppendix C Loopback Tests Appendix D Warranty, Service, and Technical SupportAppendix a Regulatory Compliance Appendix E Upgrading the ModemContents Viii Introduction Introduction FeaturesProduct Description Introduction DataWhat Is in Your Modem Package? Related ManualsQuick Start We supply Safety WarningsWhat You Will Need You supplyDialup Connection Connect the Modem to Your SystemRS232 Connection Quick StartPower Connection Two-Wire Leased Line ConnectionFour-Wire Leased Line Connection Power-On TestAdding the Modem to Windows Install the Modem in WindowsRemoving Your Old Modem from Windows Install and Configure Your Software Call the Multi-Tech BBS Trio DataCommWindows HyperTerminal Windows Terminal Trio Fax Send a FaxMicrosoft Fax Select Start Programs Accessories Fax Compose new fax ReferencesMultiModemII User Guide Using the Front Panel Modem Configuration LED IndicatorsOption Selection Using the Front PanelLiquid Crystal Display LCD Menu StructureMultiModemII User Guide Menu Overview Using the Front Panel Status Trunk MultiModemII User Guide Basic Options Trunk Using the Front Panel Advanced Options Trunk MultiModemII User Guide Remote Configuration Options Trunk Diagnostic Options TrunkUsing the Front Panel Phone Number Memory Options Trunk Caller ID Options TrunkMenu Options StatusUsing the Front Panel Basic Options Advanced Options ImplementedRemote Configuration Options Phone Number Memory Options MultiModemII User Guide Diagnostic OptionsCaller ID Options AT Commands Registers Result Codes Introduction AT Commands AT Commands, S-Registers, and Result CodesHook Control Echo Command Mode CharactersDS= y Dial Stored Telephone Number Information RequestReturn Online to Data Mode Monitor Speaker VolumeMonitor Speaker Mode Result Codes Enable/DisableRead Register Value Select RegisterSet Register Value Tone DialingLong Space Disconnect Modem ResetResult Code Selection Data Carrier Detect DCD ControlData Terminal Ready DTR Control Error Correction ModesLoad Factory Settings Modem-Initiated Flow Control22bis Guard Tone Control Communications ModeFlow Control Selection Clear to Send CTS Control Sync/Async ModeTest Commands Data Set Ready DSR ControlDisplay Last Connection Statistics Display Current ConfigurationStore Current Configuration Synchronous Clock SourceZy =x Store Telephone Number Select Profile for Hard ResetLine Signal Level Data Compression Control\An Maximum MNP Block Size Line Signal QualityPCM Code Selection \Bn Transmit Break\Nn Error Correction Mode Selection \Vn Single Line Connect Message+MS= Modulation Selection Reserved,maxTXrateCRMNP Extended Services Command #CBPy=x Store Callback Password Command -SDR=nDistinctive Ring ControlCommand #CBNy=x Store Callback Number Flash Memory DownloadCommand $SBn Serial Port Baud Rate Command #CID= n Caller IDCallback Enable/Disable Escape SequenceRegister Unit Range Default Description RegistersS32 S36 S46 Result Codes Terse Verbose DescriptionProtocol ALT +FCERROR MultiModemII User Guide Remote Configuration Setup Basic ProcedureChanging the Remote Configuration Password Remote Configuration Changing the Remote Escape CharacterMultiModemII User Guide Callback Security Setup Procedures Turning Callback Security On and OffAssigning Callback Passwords Callback SecurityAssigning Callback Phone Numbers Callback Security Commands Calling ProcedureCommand #CBN y= x Store Callback Number Command #CBPy=x Store Callback Password Callback Assignments MultiModemII User Guide Leased Line Operation Two-Wire Setup Four-Wire Setup Leased Line OperationDial Backup and Leased Line Restoral Dial Backup and Leased Line Restoral SetupLeased Line Operation MultiModemII User Guide Solving Problems None of the Indicators Light Modem Does Not Respond to Commands Solving ProblemsModem Dials But Cannot Connect Modem4Disconnects While Online Modem4Cannot Connect When Answering File Transfer4Is Slower Than It Should BeThere Are Garbage4 Characters on the Monitor Data Is Being LostModem4Doesn’t Work with Caller ID Fax and Data4Software Can’t Run at the Same Time Appendixes Appendix a Regulatory Compliance FCC Part 68 TelecomFax Branding Statement Regulatory ComplianceInternational Modem Restrictions Canadian Limitations NoticeCommission Decision CTR21 EMC, Safety, and Terminal Directive Compliance New Zealand Telecom Warning NoticeAppendix B Technical Specifications Technical Specifications Receiver Sensitivity Local Analog Loopback Test V.54 Loop Test procedureLoopback Tests Remote Digital Loopback Test V.54 Loop Figure C-2. Remote digital loopback testLocal Digital Loopback Test V.54 Loop Figure C-3. Local digital loopback testBack-to-Back Test Figure C-5. Back-to-back test connections Limited Warranty ServiceTechnical Support Online Warranty RegistrationWarranty, Service, and Technical Support Multi-Tech BBSAbout the Internet Ordering Modem Accessories SupplyNet Online Ordering InstructionsUpgrade Overview Identify the Modem FirmwareMulti-Tech BBS Identify the Current Firmware VersionMulti-Tech Web Site Upgrading the ModemExtract the Upgrade Files Download the Upgrade FileSet the Modem to the Factory Defaults Upgrade the Modem’s Firmware Restore Your ParametersAppendix F Cable Pinouts RS-232 PinoutsLeased Line Pinouts Cable PinoutsAppendix G Ascii Character Map Ctrl Code Hex DecIndex 108 Index 110

Related manuals

Manual 12 pages 16.1 Kb