Pelco C538M-A User Manual download pdf (Page 12)

Pelco Manual C1941M (7/98) 11

3.2.2 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 mating connectors just discussed.

By default, the relay is in its normal state at power up of the unit as shown in Figure

6. During operation, the relay may be toggled by controlling the 64

VCR on the

VCRC by entering VCR number 64 on the keypad, then pressing the Camera but-

ton 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. Re-

fer to Section 5.2, OPERATING THE CM9760-VCRC FROM THE CM9760-KBD,

for more details on the operational use of the VCRC from the CM9760-KBD.

3.2.3 Communication Connectors

Communication to and from the unit is provided through two RJ-45 ports on the

rear of the CM9760-VCRC. The ports are referenced as serial port 0 and serial port 1

(refer to the functional block diagram in Figure 17).

Serial Port 0 is associated with the RJ-45 IN female connector and is configured for

RS-422 operation by default. In the configuration, the RJ-45 IN connector allows

the VCRC unit to be connected to an appropriate Sercom port on the rear of a

CM9760-CC1 controller.

Serial port 1, associated with the RJ-45 OUT connector, is always configured as

RS-422 and is used for daisy-chaining subsequent VCRC units (see Section 4.2,

REMOTE OPERATION).

Individual connector pin-outs of the communication channels are discussed next.

Figure 6. Relay Output Connector

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 24 25

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Pelco C538M-A User Manual Page 12