Multitech MT5600BAV.90, MT5600BAV.92, MT5600BLV.90 There Are Garbage Characters on the Monitor

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Chapter 7 - Troubleshooting

There Are Garbage Characters on the Monitor

·Your computer and the remote computer might 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 communication software.

·You might be experiencing line noise. Enable error correction, if it is disabled, or hang up and call again; you might get a better connection the second time.

·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 &V1 command to display information about the last connection, making a screen print of the connection statistics, and checking for parameters that might be unacceptable.

The Modem Doesn’t Work with Caller ID

·Caller ID information is transmitted between the first and second rings, so if autoanswer is turned off (S0=0) or if the modem is set to answer after only one ring (S0=1), the modem will not receive Caller ID information. Check your initialization string, and if necessary change it to set the modem to answer after the second ring (S0=2).

·Make sure that you have Caller ID service from your telephone company.

Fax and Data Software Can’t Run at the Same Time

·Communication devices can be accessed by only one application at a time. Under DOS or Windows 3.1x, you can run either your fax software or your datacomm software, but not both at the same time, unless you have a special communication device management application. In Windows 95, 98, and NT 4.0, you can have data and fax communication applications open at the same time, but they cannot use the same modem at the same time.

MT5600BA/BL Series User Guide

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Contents MT5600BA/BL Series MT5600BA-V.92 MT5600BA-V.90 MT5600BL-V.90Revision Date Description Table of Contents Contents Features Description and FeaturesProduct Description Safety Warnings Installation Connect the Modem to Your SystemConnect the Phone to the Modem Optional Install the Modem Driver Removing an Old Modem DriverCountry Code Configuration MT5600BA-V.92 OnlyInstall Phone Tools Modem Configuration Using the Front PanelLED Indicators Option Selection Liquid Crystal Display LCDMenu Structure Menu Overview TwigsStatus Trunk Basic Options Trunk From previous Advanced Options Trunk Advanced Options Trunk Remote Configuration Options Trunk Diagnostic Options TrunkPhone Number Memory Options Trunk Caller ID Options TrunkMenu Options StatusBasic Options Using the Front Panel Advanced Options Using the Front Panel Diagnostic Options Remote Configuration OptionsPhone Number Memory Options Caller ID Options Two-Wire Setup Leased-Line OperationFour-Wire Setup Dial Backup and Leased-Line Restoral Dial Backup and Leased Line Restoral SetupLeased Line Operation Remote Configuration Changing the Remote Escape Character Setup Procedures Callback SecurityAssigning Callback Passwords Front Panel MethodAssigning Callback Phone Numbers Calling Procedure Callback Security Commands Callback Enable/DisableCallback Assignments Form Troubleshooting None of the Indicators LightModem Does Not Respond to Commands Modem Cannot Connect When Dialing Modem Disconnects While Online File Transfer Is Slower Than It Should Be Modem Cannot Connect When AnsweringData Is Being Lost Modem Doesn’t Work with Caller ID There Are Garbage Characters on the MonitorFax and Data Software Can’t Run at the Same Time Appendix a Regulatory Compliance FCC Part 68 TelecomFax Branding Statement Canadian Limitations NoticeInternational Modem Restrictions EMC, Safety, and R&TTE Directive ComplianceNew Zealand Telecom Warning Notice South African Notice Appendix B Technical Specifications Modem CompatibilityTransmission Level Appendix C Warranty, Service, Technical Support Multi-Tech Systems, Inc. Warranty & Repairs PoliciesOnline Warranty Registration Service Repair Procedures for International DistributorsReplacement Parts International Customers outside U.S.A. and CanadaTechnical Support Internet SitesIntroduction Upgrade OverviewAppendix D Upgrading the Firmware Identify the Modem FirmwareExtract the Upgrade Files Download the Upgrade FileIdentify the Current Firmware Version Restore Your Parameters Upgrade the Modem’s FirmwareClear Your Stored Paramenters Appendix E Installing a Modem Under Linux Using the Modem to Call the Internet Appendix F Pin Descriptions RS-232 Pin DescriptionsRS-232 Cable Pinouts RDLLeased Line Pinouts Fig. F-3. Macintosh cableIndex Index