Pelco c1943m operation manual Relay Output Connector, Communication Connectors

RELAY OUTPUT CONNECTOR

Figure 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-KBDfor more details on the operational use of the VCRC-P from the CM9760-KBD.

COMMUNICATION CONNECTORS

Communication 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.

Figure 6. Relay Output Connector

8 Pelco Manual C1943M (9/99)