Type G: Positive (+) Multiplex - Clifford Concept 450 Installation Manual

type G: positive (+) multiplex

The door lock switch or door key cylinder may contain either one or two resistors.
When interfacing with this type of door lock system, two relays or a DEI 451M must
be used.
Single-Resistor Type
If one resistor is used in the door lock switch/key cylinder, the wire will pulse (+)12
volt in one direction and less than (+)12 volt when operated in the opposite direction.
Two-Resistor Type
If two resistors are used in the factory door lock switch/key cylinder, the switch/key
cylinder will read less than (+)12 volt in both directions.
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