Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Locks, Latches and Entry Systems - Non Module Controlled

PRINCIPLES OF OPERATION

Regardless of the key position, the door lock control switches are powered at all times. The door lock control switches supply voltage to either the lock or unlock circuit based upon the switch position. The door lock actuators will then actuate to a lock or unlock position determined by the voltage on the lock or unlock circuit.