Kreisen 3 8 6 X / X E - Manual (Page 139)

Connecting Modems
Modems are used to connect your computer to the telephone
line. Since the electronic requirements for the transmission of
your voice are different from those used by your computer, a
modem is used to “translate” your digital information to a
signal that can be sent over the telephone lines.
Internally mounted modems are attached to a circuit board
that will be installed inside your main system unit. These
modems can communicate directly with the system CPU
through your computer’s internal circuitry. The telephone line
is plugged into a socket located on the rear panel of the
modem.
External modems connect to your computer’s RS-232C serial
port. Connectors are provided on the modem itself for
attachment to the phone system.
Connecting External Disk Drives
At some point, you may decide to add an external disk drive.
This may become necessary if all of the internal drive
compartments are in use, or if you want to place your main
system unit away from your work area, while keeping a drive
next to your keyboard.
The floppy disk drive control port is provided on your system
motherboard. While the cabling for these ports has been
designed to be used inside the main system unit cabinet, it is
possible to route the connectors outside to an external drive by
using a longer cable. This cable can be routed outside the main
system unit by way of an unused expansion slot panel.
For installation instructions, refer to the manual provided with
your external disk drive.
Expanding Your System 7-5