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16 C1528M-F (6/05)
CONTROL LINES
You cannot connect a Coaxitron camera to the PTZ-A or PTZ-B ports. If your video sources are all controlled by Coaxitron, skip this section.
Connect camera control lines to receivers. If any of your video sources are using D or P protocol via RS-422 communications, they will
connect at the PTZ-A and PTZ-B connectors on the back of the CM6800E.
NOTE: D and P protocol receivers cannot be mixed on the same communication port but you can use D on one port and P on the other.
Daisy-chaining (going from one receiver to another) is recommended but not always possible. A maximum of 16 receivers can be daisy-
chained from each port. If more than 32 receivers are required for your system, or if you do not want to daisy-chain the receiver connec-
tions, use the CM9760-CDU-T. You can connect up to four CM9760-CDU-T units to the CM6800E (a total of eight in a 96 x 16 system - four
connected to each CM6800E-48X8 unit).
NOTE: After completing system installation and power-up, you must configure the CM6800E and the camera/receiver. Refer to the
System Start-Up section.
96 x 16 System PTZ Control Capacity
Main unit: PTZ-A and PTZ-B; 16 receivers each
Expansion Unit: PTZ-C and PTZ-D; 16 receivers each
Figure 9. PTZ Control Connections
RECEIVER 2 RECEIVER 1
RS-422
RECEIVER 16
VIDEO TO SWITCHER
SHIELDED
TWISTED
PAIR