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Pelco Manual C1515M-A (11/01) 31
LOCAL AUXILIARIES
The CM6800 provides three local auxiliary (AUX) outputs on the rear panel for controlling
VCRs, printers, and other devices. These outputs can be activated directly from a keyboard
by using the F1, F2, and F3 function keys, or they can be activated by an alarm (deter-
mined by programming). Both relay contacts and TTL outputs are used.
In addition, you can connect up to two REL2064 Relay Interface Units to the CM6800. Note
that since operation of the three internal auxiliary relays on the CM6800 will also operate
the first three relays on the external unit, the maximum capacity of the system may be
limited to 128 auxiliaries (depending on how you number the external relays). Refer to the
Connecting a Single REL2064 Relay Interface Unit
section for connection instructions.
CONNECTING RELAY CONTACTS – AUX 1 AND 2
AUX 1 and 2 are dry contact relay outputs. Refer to Figure 25 for wiring details. Terminal
connections are provided for both normally open (N.O.) and normally closed (N.C.) contacts.
Do not exceed the voltage and current ratings for the relay contacts.
You will need to provide an external power source to operate your device. In most cases
you will also need an external current limiting resistor. The formula for calculating the
resistor value is given in Figure 25.
00617
Figure 24. Wiring the AUX 1 and 2 (Relay) Outputs
Installation:
Auxiliaries