8 496792
2. Technical Description
Control Unit PCB
Figures 3 and 4 show the layout of the 9751 and 9752 PCBs.
BATT F-2A
12V AUX
F-1A
Figure 3. 9751 Control Unit PCB Layout
21VAC from
transformer
12V Aux fuse
Kick start pins
Battery fuses
Battery
connector
NVM Reset pins
Communica-
tions connector
(for plug-by
communicator)
Telephone line
terminals for
built-in
communicator
Telephone
connector for
built-in
communicator
Outputs
Aux Power
Tamper switch
Zone
Connectors
Keypad and
expander bus
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