Configuration 4:-
Configuration- 4:
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3 wire with single doorbell switch.
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On external console PCB, J1, J2 and J3 are open.
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Can use Internal Console with Internal Exposure Switch and single doorbell switch.
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Recommended specification for wires between base unit and external console is "Belden cable PVC 3X22
AWG(Part# Belden 88463) or equivalent".
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