When a 24 VDC fail safe lock is being used to secure a door, how should power be supplied to the lock from the control s

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answerhappygod
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When a 24 VDC fail safe lock is being used to secure a door, how should power be supplied to the lock from the control s

Post by answerhappygod »

When a 24 VDC fail safe lock is being used to secure a door, how should power be supplied to the lock from the control source?

A. connected +24 VDC directly to the lock
B. connected +24 VDC through common and normally close
C. connected +24 VDC through common and normally open
D. connected +5 VDC binary control signaling
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