Cooper Security 9751 - Control Unit PCB Layout and Connectors

2. Technical Description 9751 Installation Guide
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Control Unit PCB Layout
Figure 3 shows the layout of the PCB used in the control unit.
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1. Outputs (3 open collector outputs) 8. NVM Reset pins
2. AUX power 9. Plug-by (standalone) communicator connector
3. Lid tamper switch 10. Battery connector
4. Zone connectors 11. Kick Start pins
5. Keypad and expander bus (bus 2 not fitted) 12. 21VAC from transformer
6. Telephone line terminals for built-in communicator
7. Telephone line socket for built-in communicator
Figure 3. Control Unit PCB Layout