User Guide

Required Equipment

In addition to the contents of your modem package, you need the fol- lowing equipment.

Computer

Your modem can be connected to any computer with an RS-232/V.24 serial port, such as most PCs. It can also be connected to the RS-422 serial ports on Apple Macintosh computers.

To use the modem at its highest speeds, a PC must have either of the following:

A serial port with a 16550AFN UART

A Multi-Tech ISI (Intelligent Serial Interface) card, such as the ISI551 (single port), ISI552 (dual port), or ISI608 (8 ports)

These devices can handle serial port rates up to 115,200 bps, which is sufficient for all uploads and most 56K downloads. For downloading highly compressible files at 56K speeds, however, your serial port should be capable of speeds to 230,400 bps.

Serial Cable

To connect the modem to your computer, you must provide a shielded serial cable, obtainable at computer stores and many office supply stores. The cable should have a male DB-25 connector at the modem end. For PCs, the other end may have a male DB-25 connector or a female DB-9 connector, depending on your particular computer and whether you are using the COM1 or the COM2 serial port.

Most Macintosh computers require a round, 8-pin, mini-DIN connector. The Macintosh serial cable should be wired for hardware flow control.

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Multi-Tech Systems MT5634ZBAV manual Required Equipment, Computer, Serial Cable