Introduction 3
External Modems Also Need....
• Serial Cable
Ask your computer store dealer for a shielded, straight-through
modem cable to connect the modem to your computer. The cable
requires either a 25-pin male D-type connector or a 9-pin male D-
type connector on one end of the cable. Look at the back of the
modem to determine which of these connectors is a match.
The computer end of the cable should also be either a 9-pin or a 25-
pin female connector on the other end, depending on your computer.
Check the back of your computer to determine which cable you
need.
Note: Do not purchase a null modem, crossover, or eliminator cable.
Although these cables connect to your serial port, they are designed
to connect a PC to a PC, not to a modem. Your computer dealer
should be able to help you select an appropriate cable.
Note: A cable is included with Macintosh modems because all
Macintosh-based computers use a standard cable.
Voice Modems May Require...
• Stereo-to-stereo cable
If your computer already has speakers connected to a sound card,
you can connect your voice modem and the sound card to use the
same speakers. Refer to “Connecting A Voice Modem to a Sound
Card," later in this guide for more information. You can purchase a
stereo-to-stereo cable at an electronics or computer store.