
496792 9
2. Technical Description
Figure 4. 9752 Control Unit PCB Layout
Note that, compared with the 9751, the 9752 contains extra terminal blocks
for the relay based outputs, a connector for the lid tamper switch, and a
connector for a local cable to a PC for <Downloader>.
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
Connector
Zone
Connectors
Keypad and
expander bus
Local Download
connector
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