Multi-Tech Systems MT3334ZDXV owner manual Garbage Characters on the Monitor

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MT3334ZDX/V Owner's Manual

Garbage Characters on the Monitor

•Your computer and the remote computer may be set to different word lengths, stop bits, or parities. If you have connected at 8-N-1, try changing to 7-E-1, or vice-versa, using your communications software.

•You may be experiencing line noise. Enable error correction, if it is disabled, or hang up and call again; you may get a better connection.

•At speeds above 2400 bps, the remote modem might not use the same transmission or error correction standards as your modem. Try connecting at a slower speed or disabling error correction. (With no error correction, however, line noise can cause garbage characters.)

•Try entering the &V (View Parameters) command, making a screen print of the diagnostics listing, and checking for parameters that may be unacceptable.

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Contents Page Patents Revision DescriptionContents Index Serial Cable Introduction and Description RequirementsComputer Telephone LineData Product FeaturesCommunications Software Fax Installation and ConnectionAbout this Manual Voice Model MT3334ZDXV onlyService, Warranty & Technical Support AT Commands, S-Registers and Result CodesTesting Your Modem AppendicesInstallation Process Installation IntroductionSafety Warnings Page MultiModemZDX Connections LED Indicators Front PanelInstallation Is Your MultiModemZDX Ready for Use? Operating Your MultiModemZDX Simple OperationsRemote Configuration Software Configuration AT&FcrMultiModemZDX Configuration Confirmation Hardware/Software ConfirmationTroubleshooting None of the LEDs Light When the Modem Is OnModem Does Not Respond to Commands Installation Modem Dials But Cannot Make Connection Installation Modem Cannot Connect When Answering Modem Disconnects While OnlineSlow File Transfer Losing DataGarbage Characters on the Monitor AT Commands, S-Registers Result Codes Command Summary Dial string modifiers Echo Command Mode CharactersDial Echo Online Data Characters Monitor Speaker VolumeMonitor Speaker Mode On-Hook/Off-Hook ControlModulation Handshake Return Online to Data ModeEnable/Disable Result Codes = n Set Register ValueLong Space Disconnect Modem ResetResult Code Selection Data Carrier Detect DCD ControlData Terminal Ready DTR Control Load Factory Default SettingsCommunications Mode 22bis Guard Tone ControlATDS=n \V n Protocol Result Code \N n Error Correction Mode Selection\K n Set Break Control Data Compression ControlModem Baud Rate Serial Port Baud RateRegisters Register Unit Seconds Range 255 Default Description S10S30 S11S28 S35S43 S37S42 S48 S89Delayed Terse Verbose DescriptionModem Testing Local Analog Loopback Test/V.54 Loop Local Analog Loopback TestDigital Loopback Test/V.54 Loop 2 Local/Manual Digital Loopback Test/V.54 Loop 2 Remote/Auto Digital Loopback Testlocal/manualDigital Loopback Test remote/automatic Limited Warranty Recording Modem Information On-line Warranty RegistrationTech Support Service Downloading a File About the Multi-Tech BBS No Longer AvailableLogging on to the Multi-Tech BBS If you know the file nameIf you don’t know the file name Reading a MessageLeaving a Message Bulletins Multi-Tech Fax-Back Service No Longer AvailableAbout CompuServe/Internet No Longer Available Appendix a Technical Specifications Data Modulation Intelligent FeaturesCommand Buffer Fax ModulationCarrier Frequencies Fax 21 CH2 2400 & 1200 bps22bis/V.22 Half DuplexIndicators ConnectorsDiagnostics Temperature Power Requirement697 770 852 941 Appendix B Tone Dial FrequenciesAppendices MT3334ZDX, MT3334ZDXV Appendices Canadian Limitations Notice Compliance with Babt Requirements European Low Voltage DirectivePage Compliance with BS6789 .1 and Part Compliance with BS6328 PartRegister Default Permissible Range Modem CE Mark EMC and Safety ComplianceModem Commands Default Permissible Range Australian and New Zealand Modem Warning NoticeNew Zealand Telecom Warning Notice Call Attempts/RetriesIndex Error Correction Page MT5634ZDXv Connections Power Supply Index