2 Quick Start

Note: To change the modem’s default configuration, type new com- mands in the software’s terminal window, adding the &W command to store them in the modem’s nonvolatile memory. For instance, to create a default configuration for a Macintosh computer that turns off autoanswer, type AT&F&D0S0=0&W. The new configuration loads automatically whenever the modem is turned on or receives the ATZ command.

5.Select the port the modem is connected to (normally COM1 or COM2).

6.Select your serial port speed. This can be labeled “maximum speed,” “DTE bps,” or “baud rate.” Ideally, if you use data compres- sion, you should set your serial port baud rate to four times the mo- dem’s maximum transmission speed or faster; however, few files can be compressed enough to require speeds that high, and not all serial ports can handle speeds that high. Set the serial port baud rate to 115,200 bps if your computer has a high speed serial port with a 16550AFN UART or equivalent and Windows 95 or NT 4.0, or set it to 57,600 bps if it has Windows 3.1x. If you have an older computer with a 14550 UART, set it to 19,200 bps. Older Macintosh computers can use a serial port baud rate of 57,600 bps; newer ones can use a serial port baud rate of 115,200 bps or 230,400 bps.

To see what UART your serial port uses if you have Windows 3.1x, in Program Manager select File Run, type MSD, and press EN- TER. Select COM Ports to see the UART type. If you have Win- dows 95, select Start Settings Control Panel, and double-click on the Modems icon. In the Modems Properties dialog box, click the Diagnostics tab, click the port the modem is connected to, and click More Info to see the UART type. Note that both programs will identify a 14550 UART as an 8250A UART. If you have an 80386 or later computer, your UART is most likely a 14550 or 16550AFN.

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Multi-Tech Systems MT5634ZBAV manual Quick Start