Multi-Tech Systems MT5634ZPX-PCI-V92 manual Introduction, Modem Does Not Respond to Commands

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MultiModemZPX User Guide

6 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:

•The modem does not respond to commands.

•The modem cannot connect when dialing.

•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.

•The voice functions don’t work.

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

The Modem Does Not Respond to Commands

Make sure you are issuing the modem commands from data communications "software, either 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 from your modem, your

connections are good and the problem likely is in the connection setup in your communications software.

If you don’t get an OK, make sure you have properly configured the port in your "communications program. Most legacy (prior to Windows 95) communications

programs connect to the COM port when the software loads and remain connect- ed until the program terminates. Some programs can disconnect without exiting the program. If this is the case, try issuing the software’s connection command. If more than one communications program is open, they may conflict with each other. Make sure all other communications programs are closed, and then try to make the connection again.

If you are using DOS or Windows 3.1 communication software, make sure the "initialization string includes &F as the first command, to cancel any “leftover’

command that could affect the modem’s operation.

Your communication software settings might not match the port the modem is "connected to. Make sure the COM port you chose during setup matches the COM port set in your communications software. See Chapter 2 for more information.

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Contents Page Record of Revisions Introduction Solving Problems Appendix G Installing Under SCO OpenServer Introduction What Is in Your Modem Package? IntroductionProduct Description Installation We supply Safety WarningsWhat You Will Need You supplyInstall the MultiModemZPX in your Computer Make the External Connections Line ConnectionPhone Connection Microphone Connection Sound Card and Speaker ConnectionsInstall the Modem Driver WindowsWindows 98/Me Changing the Windows 95/98/Me COM port assignment Verifying the Windows 95/98/Me Configuration If Dial-Up Networking is not installed Windows NTIf Dial-Up Networking is already installed Verifying the Windows NT Configuration Viewing system resources Configure the Modem for Your Country AT CommandsGlobal Wizard Utility Install and Configure Your Software Operation Configuring the Modem PhoneTools FeaturesConnecting to the Internet Dial-Up Networking Sending a FaxReferences AT Commands Registers Result Codes Introduction Communication Standard Setting AT CommandsRepeat Last Command AnswerEcho Online Data Characters Echo Command Mode CharactersDS=n Dial Stored Telephone Number Hook ControlResult Codes Enable/Disable Monitor Speaker ModeReturn Online to Data Mode Modulation HandshakeResult Code Format Modem ResetTone Dialing Result Code OptionsData Terminal Ready DTR Control Load Factory SettingsAsynchronous Communications Mode XON/XOFF Pacing ControlStore Current Configuration Test CommandsDisplay Current Settings Store Dialing Command\Bn Transmit Break \Jn Data Buffer Control\Kn Break Control \Qn Flow Control Selection \Nn Error Correction Mode Selection\Tn Inactivity Timer \V n Protocol Result CodeView Numbers in Blacklist Adaptive Answer Result Code EnableData Calling Tone 42bis Compression ControlCommand +DCS=x,y Select V.44 Data Compression Command +DS44=n V.44 Data CompressionData Compression Reporting Enable Synchronous Buffered Mode SubparametersModulation Selection ModCommand +PCW= n Call Waiting Enable PCM Upstream Ignore Modem on Hold EnableCommand +PMHR=n Modem on Hold Initiate Modem Hook FlashCommand +PMHT=n Modem on Hold Timer Quick Connect Control#Sx Enter Setup Password Command +VCID=n Caller ID SelectionCommand +VDR=x, y Distinctive Ring Report #S=x Store Setup PasswordCommand +++ATCR Escape Sequence Command %%%ATCR Remote Configuration Escape SequenceRegister Unit Range Default Description RegistersValue Speed Value RateBit 56K mode Value Digital lossResult Codes Terse Verbose DescriptionDelayed Remote Configuration Basic Procedure SetupTo Change the Setup Password To Change the Remote Escape Character Solving Problems Modem Does Not Respond to Commands Modem Cannot Connect When Dialing ModemDisconnects While Online MultiModemZPX User Guide Fax and DataSoftware Can’t Run at the Same Time There Are Garbage Characters on the MonitorModem Doesn’t Work with Caller ID Voice Functions Don’t WorkVoice Mail Test Loopback TestSpeakerphone Test Appendixes Appendix a Regulatory Compliance FCC Part 68 TelecomFCC Part Fax Branding StatementCanadian Limitations Notice Industry CanadaProtection Against Contact with TNV Circuit EMC, Safety, and R&TTE Directive Compliance New Zealand Telecom Warning NoticeSouth African Notice International Modem RestrictionsAppendix B Technical Specifications Command Buffer 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 testMultiModemZPX User Guide Loopback Tests Limited Warranty Online Warranty Registration ServiceCanadian Customers International Customers outside U.S.A. and Canada International DistributorsTechnical Support Internet SitesUpgrade Overview Identify the Modem FirmwareIdentify the Current Firmware Version Download the Upgrade FileExtract the Upgrade Files Document and Clear Your Stored ParamentersUpgrade the Modem’s Firmware Restore Your ParametersInstallation Standard Linux Serial Port DefinitionsPC port Linux port Using the Terminal Program Minicom to Verify Operation Using the Modem to Call the InternetCalling the ISP Answering CallsAppendix G Installing Under SCO OpenServer Index MultiModemZPX User Guide Index MultiModemZPX User Guide Index MultiModemZPX User Guide Index

MT5634ZPX-PCI-V92 specifications

The Multi-Tech Systems MT5634ZPX-PCI-V92 is a high-performance V.92 data/fax modem designed to enhance communication capabilities in various applications. This modem is particularly well-suited for commercial and industrial environments where reliable connectivity is crucial.

One of the standout features of the MT5634ZPX-PCI-V92 is its support for the V.92 protocol, which allows for quicker uploads and improved connection speeds compared to earlier standards. It offers download speeds of up to 56 Kbps and upload speeds of up to 48 Kbps, making it an excellent choice for businesses that rely on time-sensitive data transmission. The modem's ability to maintain reliable connections even over noisy telephone lines is a critical aspect of its design, ensuring that users can depend on it for essential communications.

The MT5634ZPX-PCI-V92 also includes advanced error correction and data compression technologies, such as MNP 4 and V.42bis. These technologies work together to ensure data integrity during transfers and to maximize throughput, enabling users to send larger files without compromising quality or speed. Additionally, the modem features a robust fax capability, supporting both analog and digital fax transmissions, which is vital for businesses that frequently deal with document sharing.

A notable characteristic of the MT5634ZPX-PCI-V92 modem is its PCI interface, which allows for easy integration into desktop systems. This plug-and-play capability simplifies installation and setup, making it accessible for users with varying levels of technical expertise. The modem is built on a reliable hardware platform, characterized by its durable components, making it ideal for environments where long-term use is expected.

Moreover, the MT5634ZPX-PCI-V92 comes with comprehensive driver support for various operating systems, including Windows and Linux, ensuring compatibility with a wide range of applications. With its combination of speed, reliability, and ease of use, the Multi-Tech Systems MT5634ZPX-PCI-V92 modem remains a popular option for businesses looking to maintain effective communication channels through dial-up connectivity. Whether for data transmission or faxing, it stands as a solid choice for organizations that require dependable performance in a compact form factor.
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