Multi-Tech Systems MT5634ZBA-DID manual Troubleshooting, None of the Indicators Light

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MultiModemDID User Guide

Chapter 6 - Troubleshooting

 

 

Chapter 6 - Troubleshooting

Your modem was thoroughly tested at the factory before it was shipped. If you are unable to make a successful connection, or if you experience data loss or garbled characters during your connection, it is possible that the modem is defective. However, it is more likely that the source of your problem lies elsewhere. The following symptoms are typical of problems you might encounter:

None of the LEDs light when the modem is on.

The modem does not respond to commands.

The modem dials but is unable to make a connection.

The modem disconnects while online.

The modem cannot connect when answering.

The modem doesn’t work with Caller ID.

Fax and data software can’t run at the same time.

If you experience problems, please check the following possibilities before calling Technical Support (see Appendix E).

None of the Indicators Light

When you plug in the modem, the Power LED should come on. After the operating system detects and configures the modem, the TR LED should come on.

If the Power LED does not come on, double check the cable connections.

If the TR LED does not come on, check to see that the software from the installation disk has been installed (see Chapter 2, Step 3).

The Modem Does Not Respond to Commands

Make sure you are issuing the modem commands from the data communications software, ei- ther manually in terminal mode or automatically by configuring the software. (You cannot send commands to the modem from the DOS prompt.)

Make sure you are in terminal mode in your data communications program, then type AT and press ENTER. If you get an OK response, your connections are good and the problem likely is in

the connect setup in your communications software.

Try resetting your modem by unplugging the DID cable from the modem, and then plugging it back in.

Try rebooting the computer.

The modem might be defective. If you have another Multi-Tech modem, try swapping modems. If the problem goes away, the first modem is possibly defective. Call Tech Support for assistance (see Appendix E).

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Contents User Guide Patents Record of RevisionsRevision Date Description TrademarksTable of Contents MultiModemDID User Guide Contents Introduction and Description FeaturesIntroduction We Supply SafetyYou Supply Assemble the Modem InstallationConnect the Modem to Your System Removing Your Old Modem from Windows Connect the Modem to the AC Power OutletFrom Windows 2000, XP Front Panel of the MultiModemDID Modem OperationOperation Did OperationDial-Up Networking Connecting to the InternetAT Commands, S -Registers Result Codes Answer AT CommandsRepeat Last Command Communication Standard SettingEcho Online Data Characters Echo Command Mode CharactersNumber ATDT1028806127853500$123456789 DS=n Dial Stored Telephone NumberModulation Handshake Monitor Speaker ModeReturn Online to Data Mode Result Codes Enable/DisableResult Code Options Modem ResetTone Dialing Result Code FormatXON/XOFF Pacing Control Load Factory SettingsAsynchronous Communications Mode Data Terminal Ready DTR ControlStore Dialing Command Test CommandsDisplay Current Settings Store Current Configuration\Bn Transmit Break Online command mode. The modem receives a \Bn\Kn Break Control \Vn Protocol Result Code \Nn Error Correction Mode Selection\Tn Inactivity Timer \Qn Flow Control SelectionView Numbers in Blacklist Adaptive Answer Result Code EnableDC n AT Command Control Direct Connect Enable$Dn DTR Dialing Cisco ConfigurationCommand Speed Response Command +DCS=x,y Select V.44 Data CompressionData Compression Reporting Command +DS44=n V.44 Data CompressionEnable Synchronous Buffered Mode Subparameters Modulation SelectionMod value Valid max-rate values bps PCM Upstream Ignore CommandsCommand +PCW=n Call Waiting Enable Modem on Hold EnableCommand +PMHT=n Modem on Hold Timer Command +PMHR=n Modem on Hold InitiateQuick Connect Control Other CommandsCommand +VCID=n Caller ID Selection Command +VDR= x, y Distinctive Ring ReportCommand %%%ATCR Remote Configuration Escape Sequence Command +++ATCR Escape SequenceMT5634ZBA-DID Initialization Recommendations Digit Format Busy-Out Timer at End of CallWait for Digit Time-Out Time Number of did Digits ExpectedDF2 Format for Reporting Incoming did NumberDF0 DF1Page Registers Register Unit Range Default DescriptionValue Rate Value SpeedValue Digital loss S42Invalid command Command executedRing signal detected Carrier signal lost or not detectedPage Basic Procedure Remote ConfigurationSetup Changing the Remote Escape Character None of the Indicators Light TroubleshootingModem Does Not Respond to Commands Modem Dials But Cannot Connect Fax and Data Software Can’t Run at the Same Time Modem Cannot Connect When AnsweringModem Disconnects While Online Modem Doesn’t Work with Caller IDDid Troubleshooting FCC Part 68 Telecom Appendix a Regulatory ComplianceIndustry Canada FCC PartFax Branding Statement Canadian Limitations NoticeFax Appendix B Technical SpecificationsAppendix C Upgrading the Modem’s Firmware Upgrade OverviewExtract the Upgrade Files Standard Linux Serial Port Definitions Appendix D Installing a Modem Under LinuxInstallation Select Dialup Configuration ToolSelect RH PPP Dialer Calling the ISPIndex SymbolsMultiModemDID User Guide Index MultiModemDID User Guide Index