Owner`s manual

13
Chapter 2 - Installation
Modem
Component
Side
Rack
Door
Slot 1
Figure 2-1. Modem Installation
9. Firmly seat the modem card into the backplane connector.
10. Repeat steps 7 through 9 for the remaining modems.
11. Connect an RS232C cable to the DB25 connector (25-pin
female connector) on the backplane of the rack. Start by
connecting the RS232C cable to the right-most channel
(slot 1) as viewed from the back of the rack.
Note: Any cables connected to the computer should be
shielded to reduce radio frequency interference. Keep
track of which computer channel belongs to which modem
in the rack. Most computer interface buses are grouped in
sixteens, which enables you to match modem and
computer channel numbers.