What Can You Do With Your Modem; Required Equipment; Computer; Serial Cable - Multitech MultiModemDSVD User Manual

MultiModemDSVD User Guide

What Can You Do with Your Modem?

Your Multi-Tech MultiModemDSVD is the gateway to the exciting world of tele-
communications.
You can use it to access commercial online information services such as Com-
puServe, America Online, Genie, and Prodigy; or the Internet. Like the commercial
online services, the Internet provides e-mail services, public message areas, and ac-
cess to information and software, much of it easily accessed through the World
Wide Web.
Other uses include direct links to colleagues, to banks, and to service bureaus. You can
also telecommute with your fax modem—work at home while communicating with
the office by modem or fax, for you can use your modem to exchange faxes with any
fax machine in the world, enabling you to communicate quickly with businesses and
organizations that do not have direct modem communications.
You can also simultaneously send voice and data over a single phone line or, using
third-party white-board software, work on a document with someone at another lo-
cation.

Required Equipment

In addition to the contents of your modem package, you need the following 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
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 comput-
er 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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port), ISI552 (dual port), or ISI608 (8 ports)