Pelco Manual C544M (2/98) 52.1 GENERAL FEATURES
The Pelco 9760-IRC is housed in a rack frame and connects to one Sercom port on
the rear of the CM9760-CC1.
• A fully populated Pelco 9760-IRC unit consists of the following:
a. One communication card (interfaces with CM9760-CC1)
b. Four VCR control cards
• Each control card controls:
a. Up to 32 VCRs
b. Up to four different VCR brands and/or models
• Up to 128 VCRs can be controlled by one unit.
• Up to 16 IRC units can be linked in sequence (that is, daisy-chained) giving
control of up to 2,048 VCRs (refer to Figure 2)
The control cards accept messages from the CM9760-CC1 in the same manner as
a normal GPI (General Purpose Interface) relay card.
VCR control signals are transmitted by infrared control cable (IR control cable)
attached to the VCR.

Figure 2. VCR Hook-up Parameters

UP TO TOTAL OF
2,048 VCRs
ANOTHER
128 VCRs
128 VCRs
UP TO 16