Multi-Tech Systems MT5600DSVD manual Introduction, None of the Indicators Light

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MultiModemDSVD User Guide

5 Solving Problems

Introduction

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. How- ever, 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.

File transfer is slower than it should be.

Data is being lost.

There are garbage characters on the monitor.

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 D).

None of the Indicators Light

When you turn on the modem, the LED indicators on the front panel should flash briefly as the modem runs a self-test. If the LEDs remain off, the modem is probably not receiving power.

Make sure the modem’s power switch is on, especially if you normally turn on the modem by turning on a power strip.

If the power supply is plugged into a power strip, make sure the power strip is plugged in and its power switch is on.

Make sure the power supply module is firmly connected to the modem and to the wall outlet or power strip.

If the power strip is on and the modem switch is on, try moving the modem power supply to another outlet on the power strip.

4Test that the outlet is live by plugging a lamp into it.

The modem or power supply may be defective. If you have another Multi-Tech modem, try swapping modems. If the problem goes away, the first modem or power supply may be defective. Call Tech Support for assistance.

CAUTION: Do not under any circumstances replace the power supply module with one designed for another product, as it can damage the modem and void your warranty.

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Contents Page Record of Revisions Introduction AT Commands, S-Registers & Result Codes Appendix E Upgrading the Modem Introduction Features IntroductionProduct Description Data What Is in Your Modem Package? Related ManualsInstallation We supply Safety WarningsWhat You Will Need You supplyMount the Feet Change the Speaker JumperOpening the Modem Changing the Speaker Jumper Location of speaker jumperConnect the Modem to Your System RS232 ConnectionLine Connection Phone Connection Power ConnectionPower-On Test Microphone ConnectionInstall the Modem Driver Installing the Modem DriverRemoving Your Old Modem Driver Install and Configure Your Software Operation Front Panel Configuring the Modem Connecting to the InternetDial-Up Networking To install and run Dial-Up Networking in Windows 95 orTo dial your Internet access provider Dial-Up Networking in Windows 95/98To install Dial-Up Networking Dial-Up Networking in Windows MeDial-Up Networking in Windows NT Select Start Settings Network and Dial-up Connections Dial-Up Networking in WindowsTo Originate a Voice Call in Speakerphone Mode Fax OperationVoice Operation To Answer a Voice Call in Speakerphone Mode To Originate a Dsvd Call Using the HeadsetTo Answer a Dsvd Call Using the Headset References AT Commands Registers Result Codes AT Commands AT Command Summary Hook Control Echo Command Mode CharactersDS=y Dial Stored Telephone Number Information RequestDisplay Legacy Parameters Monitor Speaker VolumeMonitor Speaker Mode Modulation HandshakePulse Dialing Return Online to Data ModeResult Codes Enable/Disable Select RegisterResult Code Selection Modem ResetConnect Message Control Long Space DisconnectData Terminal Ready DTR Control Error Correction ModesData Carrier Detect DCD Control Modem-Initiated Flow Control22bis Guard Tone Control Load Factory Settings42bis Data Compression Telephone Jack ControlTest Commands Communications ModeAsynchronous Communications Mode Pulse Dial Make/Break RatioSelect Profile for Hard Reset Display Current ConfigurationStore Current Configuration Display Last Connection StatisticsZy=x Store Telephone Number Line Signal LevelLine Signal Quality Data Compression Control\Bn Transmit Break PCM Code Selection\An Maximum MNP Block Size \Kn Break Control\Nn Error Correction Mode Selection \Vn Single Line Connect MessageModulation Selection SubparametersMNP Extended Services Command #CID=n Caller ID Distinctive Ring ControlFlash Memory Download Command +++ATCR Escape Sequence Voice CommandsCommand $SBn Serial Port Baud Rate Command -SMS=nData/DSVD ModeCommand #CLS=n Data, Fax, or Voice/Audio Select Dsvd Enable/DisableCommand #BDR=n Baud Rate Select Command #MDL? Identify ModelRegister Unit Range Default Description RegistersS32 S37 Register Unit Range Default Description S86 Result Codes Terse Verbose Description Protocol ALT +FCERROR Solving Problems None of the Indicators Light Modem Does Not Respond to Commands LightModem Dials But Cannot Connect Modem4Disconnects While Online Modem4Cannot Connect When Answering File Transfer4Is Slower Than It Should BeData Is Being Lost There Are Garbage4 Characters on the Monitor Modem4Doesn’t Work with Caller IDFax and Data4Software Can’t Run at the Same Time Appendixes Appendix a Regulatory Compliance FCC Part 68 TelecomFCC Part Industry CanadaFax Branding Statement Canadian Limitations NoticeEMC, Safety, and R&TTE Directive Compliance International Modem RestrictionsNew Zealand Telecom Warning Notice South African Notice Appendix B Technical Specifications MultiModemDSVD User Guide Technical Specifications Voice Compression Test procedure Local Analog Loopback Test V.54 LoopRemote 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 testMultiModemDSVD User Guide Loopback Tests Service Limited WarrantyOnline Warranty Registration North American ProductsTechnical Support International ProductsOrdering Accessories Internet SitesUpgrade Overview Identify the Modem FirmwareIdentify the Current Firmware Version Download the Upgrade FileExtract the Upgrade Files Clear Your Stored ParamentersUpgrade the Modem’s Firmware Restore Your ParametersIndex MultiModemDSVD User Guide Index MultiModemDSVD User Guide Index MultiModemDSVD User Guide Index