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10 Pelco Manual C544M (2/98)
3.3 CONNECTING THE CM9760-IRC TO
THE CM9760-CC1 HOST
Each CM9760-IRC has two RS-422 ports; one labeled IN (male) and the other
OUT (female).
To connect a CM9760-IRC to the CM9760-CC1 host, connect a SerCom port on
the host to the IN RS-422 port on the IRC. The data pin connections are shown
below in Figure 7.
Figure 7. Pinouts for Connecting an IRC to a CPU (9760-CC1) Host
CM9760-IRC
RS-422 DB9 PORT
(MALE)
IN
CM9760-CC1
SERCOM
(FEMALE)
CONNECT
VIA CABLE
PIN 1= (TX+)
PIN 2= (TX–)
PIN 8= (TX–)
PIN 4= (TX+)
PIN 5= (RX+)
PIN 9= (RX–)
PIN 7= (RX–)
PIN 8= (RX+)
1
2
3
4
5
6
7
8
9