4 Troubleshooting

The Modem Cannot Connect When Answering

•Auto-answer may be disabled. Turn on auto-answer in your data communications program or send the command ATS0=1 to your modem in terminal mode.

File Transfer Appears Slower Than It Should Be

•If you are using a slow transfer protocol, such as Xmodem or Kermit, try Zmodem or Ymodem/G instead.

•Is your line noisy? If there is static on your line, the modem has to resend many blocks of data to insure accuracy. You must have a clean line for maximum speed.

•Are you downloading a compressed file with MNP 5 hardware compression enabled? Since hardware data compression cannot compress a file already compressed by an archiving program, the transfer can be marginally slower with data compression enabled than with it disabled.

Data Is Being Lost

•If you are using data compression, be sure the serial port baud rate is set to a minimum of four times the data rate.

•Make sure the flow control method you selected in software matches the method selected in the modem. If you are using CompuServe’s WinCIM software, you must set the modem for XON/OFF flow control (see Chapter 4 for the CompuServe initialization string).

•Try entering the &V (View Parameters) command, making a screen print of the diagnostics listing, and checking for parameters that may be unacceptable.

MT5634ZPW-PCI

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Multi-Tech Systems MT5634ZPW-PCI Modem Cannot Connect When Answering, File Transfer Appears Slower Than It Should Be
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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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