Multi Tech Equipment MT5634ZBA-V-V92 manual Modem Does Not Respond to Commands

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MultiModemZBA-V-V92 User Guide

8 Solving Problems

 

 

The Modem Does Not Respond to Commands

ÖMake sure the modem is plugged in and turned on. (See “None of the Indicators Light.”)

ÖMake sure you are issuing the modem commands from data communication software, either manually in terminal mode or automatically by configuring the software. (You cannot send commands to the modem from the DOS prompt.)

ÖMake sure you are in terminal mode in your data communication 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 communication software.

ÖTry resetting your modem by turning it off and on. 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.

ÖIf you don’t get an OK, the problem may still be in the communication software. Make sure you have done whatever is necessary in your software to make a port connection. Not all communication programs connect to the COM port automatically. Some connect when the software loads and remain connected until the program terminates. Others can disconnect without exiting the program. The modem’s TR indicator lights to show that the software has taken control of the modem through the COM port.

ÖYour communication software settings may not match the physical port the modem is connected to. The serial cable might be plugged into the wrong connector—check your computer documentation to make sure. Or you might have selected a COM port in your software other than the one the modem is physically connected to—compare the settings in your software to the physical connection.

ÖIf the modem is on, the cable is plugged into the correct port, the communication software is configured correctly, and you still don’t get an OK, the fault might be in the serial cable. Make sure it is firmly connected at both ends.

ÖIs this the first time you have used the cable? If so, it may not be wired correctly. Check the cable description on the packaging to make sure the cable is the right one for your computer.

ÖPeripheral expansion cards, such as sound and game cards, might include a serial port preconfigured as COM1 or COM2. The extra serial port, or the card itself, may use the same COM port, memory address, or interrupt request (IRQ) as your communication port. Be sure to disable any unused ports.

Windows 9x: Right-click on My Computer, select Properties from the menu, click on the Device Manager tab, double-click on Ports, then double-click on the communication port your modem is connected to. In the port’s Properties sheet, click on the Resources tab to see the port’s input/output range and interrupt request. If another device is using the same address range or IRQ, it appears in the Conflicting Device List. Uncheck Use automatic settings to change the port’s settings so they do not conflict with the other device, or select the port the conflicting device is on and change it instead. If you need to open your computer to change switches or jumpers on the conflicting device; refer to the device’s documentation.

Windows NT 4.0: To look for address or IRQ conflicts, click Start, Programs, Administrative Tools (Common), and Windows NT Diagnostics. In the Windows NT Diagnostics dialog box, click the Resources tab to see which input/output ranges and interrupt requests are in use. If you need to open your computer to change switches or jumpers on the conflicting device; refer to the device’s documentation.

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Contents MT5634ZBA-V-V92 Record of Revisions Table of Contents AT Commands, S-Registers, and Result Codes Introduction Upgrade Overview Chapter Introduction Product Description MultiModemZBA-V-V92 User Guide IntroductionWe Supply You SupplyChapter Installation Safety Warnings MultiModemZBA-V-V92 User Guide InstallationMount the Feet Change the Internal Jumpers Opening the ModemMultiModemZBA-V-V92 User Guide2 Installation Location of the JumpersChanging the Dial-Up/Leased-Line Jumpers Changing the Voice JumperConnect the Two-Wire Leased Line Connect the Modem to Your SystemConnect the Modem to You PC Connect the Modem to the Telephone LineConnect the Modem to the AC Power Outlet Connect the Modem to a Phone OptionalConnect a Microphone and/or Speakers Optional Connect the MicrophoneInstall the Modem Driver Power-On TestInstalling the Modem Driver Surge Protectors and LightningConfigure the Modem for Your Country Using the Global Wizard to Configure Your ModemUsing AT Commands to Configure Your Modem Click Initial Setup and Country SelectionInstall and Configure Your Software Chapter Operation Front Panel MultiModemZBA-V-V92 User Guide OperationConfiguring the Modem PhoneTools FeaturesSetup Leased Line OperationConnecting to the Internet OperationDial-Up Networking Sending a FaxChapter ATCommands,S-Registers,and ResultCodes AT Commands Repeat Last CommandCommunication Standard Setting AnswerEcho Command Mode Characters Number ATDT1028806127853500$123456789DS=n Dial Stored Telephone Number Echo Online Data CharactersMonitor Speaker Mode Return Online to Data ModeResult Codes Enable/Disable Modulation HandshakeModem Reset Tone DialingResult Code Format Result Code OptionsLoad Factory Settings Asynchronous Communications ModeData Terminal Ready DTR Control XON/XOFF Pacing ControlTest Commands Display Current SettingsStore Current Configuration Store Dialing Command\Bn Transmit Break \Kn Break Control\Nn Error Correction Mode Selection \Tn Inactivity Timer\Qn Flow Control Selection \V n Protocol Result CodeAdaptive Answer Result Code Enable DC n AT Command ControlData Calling Tone View Numbers in BlacklistDirect Connect Enable Cisco ConfigurationCommand Speed Response $Dn DTR DialingCommand +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 Mod value Valid maxrate values bpsModem on Hold Enable Command +PMHR=n Modem on Hold InitiatePCM Upstream Ignore Modem Hook FlashCommand +PMHT=n Modem on Hold Timer Quick Connect ControlS109 Command +VCID=n Caller ID Selection Command +VDR=x, y Distinctive Ring ReportCommand #CBDn Callback Delay Callback AttemptsCommand #CBF? Callback Failed Attempts Display Command #CBFR Callback Failed Attempts Reset#CBIn Local Callback Inactivity Timer Command #CBNy=x Store Callback Password#Sx Enter Setup Password #S=x Store Setup PasswordCommand +++ATCR Escape Sequence Command %%%ATCR Remote Configuration Escape SequenceRegisters S38 Value RateS42 S48S89 S108Result Codes Terse Verbose DescriptionBlacklist Full Remote Configuration Basic Procedure SetupTo Change the Setup Password MultiModemZBA-V-V92 User Guide Remote ConfigurationTo Change the Remote Escape Character Callback Security CallbackSecurity MultiModemZBA-V-V92 User Guide Callback SecurityTo Turn Callback Security On and Off To Set the Parity of the Callback Security MessagesTo Assign Callback Passwords and Phone Numbers Calling Procedures Password-Only CallbackPassword Number-Entry CallbackExtension-Entry Callback Callback Security Commands Command #CBD n Callback DelayCommand #CBIn Local Callback Inactivity Timer #S x Enter Setup Password #S= x Store Setup PasswordCommand &Zy=+-x,???Store Dialing Command DT, or DP. Example AT&Z0=+-ATM0D5551212,???Callback Assignments Form MultiModemZBA-V-V92 User Guide6 Callback SecurityModem on Hold Operation What Is Modem on Hold? Modem on Hold ProgramMultiModemZBA-V-V92 User Guide Modem on Hold Operation Modem on Hold Settings Disable Modem on HoldEnable Modem on Hold Enable Caller IDCheck Modem Status About MTMohExit MTMoh Using Modem on Hold Answering a Voice CallResuming a Data Call Solving Problems None of the Indicators Light MultiModemZBA-V-V92 User Guide Solving ProblemsModem Does Not Respond to Commands Modem Cannot Connect When Dialing Modem Disconnects While Online Modem Cannot Connect When Answering File Transfer Is Slower Than It Should BeData Is Being Lost There Are Garbage Characters on the Monitor Modem Doesn’t Work with Caller IDFax and Data Software Can’t Run at the Same Time Appendixes FCC Part 68 Telecom MultiModemZBA-V-V92 User Guide Regulatory ComplianceFCC Part Fax Branding StatementCanadian Limitations Notice Industry CanadaInternational Modem Restrictions EMC, Safety, and R&TTE Directive Compliance New Zealand Telecom Warning NoticeSouth African Notice MultiModemZBA-V-V92 User Guide Technical Specifications Error CorrectionMode of Operation Intelligent FeaturesCommand Buffer ConnectorsDiagnostics IndicatorsUpgrade Overview IntroductionIdentify the Modem Firmware Download the Upgrade File Extract the Upgrade FilesIdentify the Current Firmware Version Clear Your Stored ParametersUpgrade the Modem’s Firmware Restore Your ParametersInstallation Using the Terminal Program Minicom to Verify OperationStandard Linux Serial Port Definitions Using the Modem to Call the Internet Select Dialup Configuration ToolCalling the ISP Answering CallsConnecting to a Cisco Router Console Port Configure the Modem for your CountryConfigure for Callback Security in Direct Connect Mode MultiModemZBA-V-V92 User Guide Connecting to a Cisco RouterConsole Port Final Setup Remote Configuration Signal RJ-45 pin DB-9 pin DB-25 pinConsole Port Connections Cable Pin-outs and Cabling Guide Console ModemMultiModemZBA-V-V92 User Guide Connecting to a Cisco Router Multi-Tech Systems, Inc. Warranty & Repairs Policies WarrantyRepair Procedures for U.S. and Canadian Customers Repair Procedures for International Distributors Online Warranty Registration Service Canadian CustomersInternational Customers outside U.S.A. and Canada Attn Repairs, Serial #Replacement Parts Technical SupportInternet Sites International DistributorsIndex Index 103 MultiModemZBA-V-V92 User Guide Index104

MT5634ZBA-V-V92 specifications

The Multi Tech Equipment MT5634ZBA-V-V92 is a versatile and reliable modem designed for various data communication applications. As a part of the MultiTech line of products, this modem is engineered to provide seamless connectivity in both dial-up and broadband environments. Its robust feature set ensures compatibility with a wide array of devices, making it a great choice for businesses and individuals alike.

One of the main features of the MT5634ZBA-V-V92 is its ability to operate at V.92 speeds, allowing for data transmission rates of up to 56 Kbps. This makes it suitable for sending and receiving large amounts of data quickly, a significant advantage for businesses that require efficient communication. The modem is also backward compatible with previous V.90 technologies, ensuring that it can connect with older systems without any issues.

Another notable aspect of the MT5634ZBA-V-V92 is its built-in error correction and data compression capabilities. These technologies significantly enhance data integrity and transmission speed, resulting in fewer dropped connections and faster downloads. The modem uses state-of-the-art compression algorithms to optimize data flow, making it ideal for applications that require reliable and swift data exchange.

In terms of connectivity, the MT5634ZBA-V-V92 supports various interfaces, including RS-232, which allows for easy integration with a wide range of computer systems and other devices. Its flexibility in interfacing options makes it suitable for diverse environments, from industrial applications to home office setups.

The modem's design is also focused on user-friendliness. It comes equipped with LED indicators that provide real-time status updates on power, data transmission, and network connection, allowing users to monitor their connections effortlessly. Additionally, the device includes a simple installation process, which minimizes downtime and helps users get up and running quickly.

The MT5634ZBA-V-V92 is built to last, with a sturdy construction that ensures durability in demanding conditions. Its compact design allows for easy mounting and placement, making it an excellent choice for both stationary and mobile applications.

Overall, the Multi Tech Equipment MT5634ZBA-V-V92 is a powerful modem that merges speed, reliability, and flexibility. With its advanced features and technologies, it stands out as a dependable solution for anyone in need of high-performance data communication. Whether for business or personal use, this modem meets the connectivity needs of today's digital landscape with ease.
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