Multi-Tech Systems MT3334ZDXV owner manual LED Indicators, Front Panel

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MT3334ZDX/V Owner's Manual

LED Indicators

The MultiModemZDX has ten LED indicators (Figure 2-3) to report status (such as verifying proper installation) and line activity (such as monitoring the status of a connection).

Figure 2-3. Front Panel

TD

Transmit Data. The TD LED flashes when data is being transmitted (on for a space, off for a mark). Signals on this circuit are generated by the terminal and transferred to the transmitter of the MultiModemZDX. The transmitting terminal should hold this line in the marking state when no data is being transmitted, including intervals between characters or words. The TRANSMIT (TD) LED indicates the status of this circuit.

RD

Receive Data. The RD LED flashes when data is being received (on for a space, off for a mark). Data signals received from the remote MultiModemZDX are presented on this line. When no carrier signal is being received (pin 8 negative), this line will be forced into a marking condition. The RECEIVE (RD) LED indicates the status of this signal.

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Contents Page Patents Revision DescriptionContents Index Introduction and Description Requirements ComputerSerial Cable Telephone LineProduct Features Communications SoftwareData Installation and Connection About this ManualFax Voice Model MT3334ZDXV onlyAT Commands, S-Registers and Result Codes Testing Your ModemService, Warranty & Technical Support AppendicesInstallation Introduction Safety WarningsInstallation Process 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 Echo Command Mode Characters DialDial string modifiers Monitor Speaker Volume Monitor Speaker ModeEcho Online Data Characters On-Hook/Off-Hook ControlReturn Online to Data Mode Enable/Disable Result CodesModulation Handshake = n Set Register ValueModem Reset Result Code SelectionLong Space Disconnect Data Carrier Detect DCD ControlLoad Factory Default Settings Communications ModeData Terminal Ready DTR Control 22bis Guard Tone ControlATDS=n \N n Error Correction Mode Selection \K n Set Break Control\V n Protocol Result Code Data Compression ControlModem Baud Rate Serial Port Baud RateRegisters Register Unit Seconds Range 255 Default Description S10S11 S28S30 S35S37 S42S43 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 On-line Warranty Registration Tech SupportRecording Modem Information Service About the Multi-Tech BBS No Longer Available Logging on to the Multi-Tech BBSDownloading a File If you know the file nameReading a Message Leaving a MessageIf you don’t know the file name Multi-Tech Fax-Back Service No Longer Available About CompuServe/Internet No Longer AvailableBulletins Appendix a Technical Specifications Intelligent Features Command BufferData Modulation Fax Modulation2400 & 1200 bps 22bis/V.22Carrier Frequencies Fax 21 CH2 Half DuplexConnectors DiagnosticsIndicators 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 PartModem CE Mark EMC and Safety Compliance Modem Commands Default Permissible RangeRegister 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