8Pelco Manual C1943M (9/99)
RELAY OUTPUT CONNECTORFigure 6 illustrates the relay output connector and its relative port pin assignments. The
connector is a three-position plug with screw-type contacts similar in operation to the mat-
ing connectors just discussed.
By default, the relay is in its normal state at power up of the unit as shown in Figure 6. Dur-
ing operation, the relay may be toggled by controlling the 64th VCR on the VCRC-P by en-
tering VCR number 64 on the keypad, then pressing the Camera button which brings up
the VCR control functions and then pressing the blue button under the PLAY control icon.
Similarly, performing the above but pressing the STOP VCR control command instead of
the PLAY command will deactivate the relay. Refer to the section on
Operating the CM9760-
VCRC-P from the CM9760-KBD
for more details on the operational use of the VCRC-P
from the CM9760-KBD.
COMMUNICATION CONNECTORSCommunication to and from the unit is provided through two RJ-45 ports on the rear of the
CM9760-VCRC-P. Refer to the functional block diagram in Figure 16.
The RJ-45 IN female connector can be configured for RS-232 or RS-422 operation. Default
is RS-422. In the configuration, the RJ-45 IN connector allows the VCRC-P unit to be con-
nected to an appropriate Sercom port on the rear of a CM9760-CC1 controller.
The RJ-45 OUT connector is configured for RS-422 operation. The OUT port is used for
daisy-chaining subsequent VCRC-P units (refer to the
Remote Operation
section).
Individual connector pin-outs of the communication channels are discussed next.