Multi-Tech Systems MT5634ZPW-PCI owner manual Modem Does Not Respond to Commands

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Owner’s Manual

The Modem Does Not Respond to

Commands

•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 connection description in your communications software.

•Try resetting your modem by sending it an ATZ or AT&F command in terminal mode. If you are using legacy software— software designed for an older operating system—make sure the initialization string includes &F as the first command, to cancel any “leftover” commands that could interfere with the modem’s operation.

•If you don’t get an OK, the problem may still be in the communications software. Make sure you have done whatever is necessary in your software to make a port connection. Most legacy communications programs connect to the COM port when the software loads, and remain connected until the program terminates. Some, however, can disconnect without exiting the program; if you have one of these, try issuing the software’s connection command. Also, if more than one communications program is open, they can conflict with each other. Make sure all other communications programs are closed, and then try again.

•If you are using legacy software, its COM port setting may not match the COM port Windows 95 assigned to the modem. Compare the COM port setting in your software to the COM port reported in the Diagnostics tab of the Modems Properties sheet. (Select Start, Settings, Control Panel, Modems, Diagnostics.)

•Another expansion card, such as a bus mouse or sound card, might be using the same COM port, memory address, or interrupt request (IRQ) as your modem. On the Windows 95 desktop, right-click on My Computer, select Properties, Device Manager, and Ports, then double-click on the

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Contents Model Number MT5634ZPW-PCI Record of Revisions Revision Description Contents AT Commands, S-Registers and Result Codes Appendices Page Introduction and Description Congratulations General features include Fax What is in Your Modem Package? Peripheral Component Interconnect PCIHow to Use This Manual Introduction and DescriptionWarranty, Service, and Technical Support Typographic Conventions You type thisInstallation Introduction What You’ll NeedSafety Warnings Sound Card Considerations Install the MultiModemZPW-PCI into the Computer External Connections Line Phone Line OUT MICInstalling Drivers Is Your MultiModemZPW-PCI Ready for Use?Verifying Configuration Exit the System Properties sheetHow to Remove Your Old Modem from Windows Operating Your MultiModemZPW-PCI Software Configuration Simple OperationsTesting the MultiModemZPW-PCI’s Data Functions Select Start, Programs, Accessories, HyperTerminalIf you don’t know the file name Testing the MultiModemZPW-PCI’s FAX Functions Select Start, Programs, Accessories, WordPadTesting the MultiModemZPW-PCI’s Voice Function Other Ways to Access Microsoft FaxMultiModemZPW-PCI’s Answering Machine Test Loopback Testing MultiModemZPW-PCI’s Speakerphone TestInstallation MT5634ZPW-PCI AT Commands, S-Registers and Result Codes Configuring Communications Software AT Commands, S-Registers and Result Codes ∗ *70 is only used in the United States Enter Key AT CommandsCommand +++ATCR Escape Sequence Detect AT&Ts call card toneCarrier Control Repeat Last CommandCommunication Standard Setting DialEcho Online Data Characters Echo Command Mode CharactersDS= n Dial Stored Telephone Number Hook ControlInformation Request Monitor Speaker VolumeMonitor Speaker Mode Modulation Handshake= n Set Register Value Return Online to Data ModeResult Codes Enable/Disable Read Register ValueLong Space Disconnect Modem ResetResult Code Selection Auto RetrainData Terminal Ready DTR Control Load Factory Default SettingsData Carrier Detect DCD Control 22bis Guard Tone ControlSelf-Test Commands Communications ModeAsynchronous Communications Mode View Current ConfigurationStore Telephone Number Store Current ConfigurationSelect Stored Configuration for Hard Reset \G n Modem Port Flow Control\Qn Local Flow Control Selection \Nn Error Correction Mode Selection\Tn Inactivity Timer \Vn Protocol Result CodeCommand %T94 Testing External RAM Command %C n Data Compression Control+ES=6 Enable Synchronous Buffered Mode Data Calling ToneCommand %T125 Testing DSP 56K Code Version/Checksum RegistersS10 Register Unit Range Default Description S37 Register Unit Range Default Description S42 Result Codes Terse Verbose DescriptionDelayed MT5634ZPW-PCI Troubleshooting Initial Checklist Common Problems TroubleshootingModem Does Not Respond to Commands Troubleshooting Modem Dials But Cannot Make a Connection Troubleshooting Modem Disconnects While Online File Transfer Appears Slower Than It Should Be Modem Cannot Connect When AnsweringData Is Being Lost There Are Garbage Characters on the Monitor Fax and Data Software Won’t Run at the Same TimeWarranty, Service and Technical Support Limited Warranty Technical Support Recording Modem InformationMT5634ZPW-PCI Service Attn RepairMulti-Tech BBS Logging on to the Multi-Tech BBSDownloading a File If you know the file nameLeaving a Message Reading a MessageBulletins About CompuServe About the InternetAbout the Multi-Tech Fax-Back Service Appendices MT5634ZPW-PCI Appendices MT5634ZPW-PCI Canadian Limitations Notice Ringer Equivalence Number Compliance with Babt Requirements Figure A-1. Creepage and Clearance Distances European Low Voltage Directive MT5634ZPW-PCI Appendices Compliance with BS6789 .1 and Part Compliance with BS6328 PartEuropean Community Directives CE Register Default Permissible Range Command Default Permissible RangeAustralian and New Zealand Modem Warning Notice New Zealand Telecom Warning Notice Appendix B Technical Specifications Client-to-Server Data RatesError Correction Command Buffer Diagnostics Appendix C Ascii Conversion Chart Ctrl Code HEX DEC Code HEX DEC Code HEX DEC Code HEX DEC

MT5634ZPW-PCI specifications

The Multi-Tech Systems MT5634ZPW-PCI is a cutting-edge data communication solution, specifically designed for businesses and professional users requiring reliable connectivity. This PCI modem offers a host of impressive features, technologies, and characteristics that make it a preferred choice for various applications, ranging from internet access to remote station communications.

One of the standout features of the MT5634ZPW-PCI is its support for V.92 technology, enabling faster upload and download speeds compared to traditional modems. With a maximum theoretical throughput of 56 Kbps for downloads, and 48 Kbps for uploads, users can experience high-speed internet access for better efficiency and productivity. This modem also supports V.90 and V.34 protocols, ensuring compatibility with a wide range of existing infrastructure.

Another significant aspect of the MT5634ZPW-PCI is its integrated error correction and data compression technologies, which enhance the quality and speed of data transmission. With its support for MNP2-4 and V.42 error correction, users benefit from reduced data loss and improved communication reliability. Additionally, V.42bis data compression allows for more efficient use of the modem’s bandwidth, enabling users to transmit more data within the same timeframe.

The device is equipped with a PCI interface, ensuring easy installation into desktop systems, while the included drivers provide seamless integration with various operating systems, including Windows and Linux. This versatility makes the MT5634ZPW-PCI suitable for a range of applications, whether in desktops or specialized terminals.

Security is also a focal point with the MT5634ZPW-PCI, as it supports several protocols for secure data communication, including Caller ID, which allows users to screen incoming calls and only accept connections from known numbers.

In terms of design, the modem is compact and efficient, allowing it to fit easily into most standard PC cases. Its durability and reliable performance further increase its appeal for users who require a dependable communication solution.

Overall, the Multi-Tech Systems MT5634ZPW-PCI modem is a powerful, feature-rich device ideal for both professional and personal use. Its combination of high-speed capabilities, advanced technologies, and user-friendly design make it a standout choice for those seeking reliable data communication solutions.
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