Multi-Tech Systems MT9234ZBA-V Data Is Being Lost, There Are Garbage Characters on the Monitor

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Chapter 6 – Troubleshooting

Data Is Being Lost

•If you are using data compression and a high speed serial port, set the serial port baud rate to two to six times the data rate.

•Make sure the flow control method you selected in software matches the method selected in the modem.

•Try entering the I11 command in online mode or the &V command in command mode to display information about the last connection, making a screen print of the connection statistics, and checking for parameters that might be unacceptable.

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 I11 command in online mode or the &V command in command mode 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. In Windows 2000 and higher, you can have data and fax communication applications open at the same time, but they cannot use the same modem at the same time.

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Multi-Tech Systems, Inc. MT9234ZBA-Series User Guide (S000387A)

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Contents MultiModem ZBA Revisions Table of Contents Table of Contents Features IntroductionTechnical Specifications Diagnostics Installation Safety WarningsChange the Internal Jumpers Opening the ModemChanging the Voice Jumper Connect the Modem to Your PC Install the Modem Driver Using AT Commands to Configure Your Modem Setup OperationAbout the Front Panel Leased-Line OperationConnecting to the Internet Remote Configuration Basic ProcedureSetup Changing the Setup PasswordChanging the Setup Password Callback SecurityTurning Callback Security On and Off Setting Callback Security Message Parity Assigning Callback Passwords and Phone NumbersCalling Procedures Password-Only CallbackNumber-Entry Callback Extension-Entry CallbackCallback Security Commands Direct ConnectionCallback Assignments Form Troubleshooting None of the Indicators LightModem Does Not Respond to Commands Modem Cannot Connect When Dialing Page Data Is Being Lost There Are Garbage Characters on the MonitorModem Doesn’t Work with Caller ID Fax and Data Software Can’t Run at the Same TimeWarranty, Service, and Technical Support Multi-Tech Warranty StatementRepair Procedures for U.S. and Canadian Customers Repair Procedures for International Distributors Replacement PartsUpgrade Overview Download the Upgrade FileAppendix a Upgrading the Modem’s Firmware Identify the Modem FirmwareExtract the Upgrade Files Upgrade the Modem’s FirmwareRestore Your Parameters Clear Your Stored ParametersFCC Part 15 Regulation FCC Part 68 TelecomEMC, Safety and R&TTE Directive Compliance Fax Branding StatementCanadian Limitations Notice Industry CanadaInternational Modem Restrictions New Zealand Telecom Warning NoticeSouth African Statement Appendix C Waste Electrical and Electronic Equipment Weee Waste Electrical and Electronic Equipment StatementAppendix D Installing a Modem under Linux SetupAppendix E Connecting to a Cisco Router Connecting to a Cisco Router Console PortRemote Configuration Console Port ConnectionsAppendix F C-ROHS HT/TS Substance Concentration 依照中国标准的有毒有害物质信息AT commands IndexTelephone
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MT9234ZBA-V, MT9234ZBA specifications

Multi-Tech Systems has long been a trusted name in the field of communication technology, and its MT9234ZBA and MT9234ZBA-V modem products exemplify the company's commitment to delivering robust and reliable connectivity solutions. These modems are ideal for a range of applications, including telephony, data communication, and remote monitoring, making them a versatile choice for both personal and professional use.

One of the standout features of the MT9234ZBA and MT9234ZBA-V is their high-speed data transmission capabilities. Both models support data rates of up to 56 Kbps, ensuring efficient and swift data transfer for various applications. This allows users to experience minimal latency during downloads and uploads, appealing to those who depend on timely and reliable data delivery.

These modems utilize advanced technologies, such as V.92 and V.90 protocols, which enable users to benefit from features like quick connect, thereby reducing the time it takes to establish a connection. Additionally, the modems support both analog and digital lines, making them adaptable for different environments and infrastructures.

Another notable characteristic of the MT9234ZBA and MT9234ZBA-V modems is their compatibility with a wide range of operating systems, including various versions of Windows, Linux, and Mac OS. This cross-platform support ensures that users can easily integrate these modems into their existing software environments without encountering significant compatibility issues.

The design and construction of these modems are also worth mentioning. They are compact and lightweight, making them easy to install and reposition as needed. Their robust construction ensures longevity, which is crucial for users in environments where durability is paramount.

For those concerned about security, Multi-Tech Systems has integrated multiple security features within these modems. This includes support for encryption protocols, ensuring that data transmitted over the modem remains secure and protected from unauthorized access.

In conclusion, the MT9234ZBA and MT9234ZBA-V by Multi-Tech Systems represent an excellent choice for anyone in need of reliable and high-speed modem solutions. With their advanced features, compatibility with various operating systems, and emphasis on security, these modems stand out in the crowded telecommunications market. Whether for home use or in a professional setting, the MT9234ZBA and MT9234ZBA-V offer robust solutions for modern communication needs.
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