rx function ND series

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The ND-Series RX,  the L-Series RX and latch monitoring switches are Form C - Single Pole Double Throw (also known as SPDT).
ND53PD (ANSI F109) Entrance Lock  Turn/push-button locking; pushing and turning button locks outside lever, requiring use of key until button is manually unlocked. Push-button locking; pushing bu...
The ND12 and ND25 are both exit locks.ND12 Outside lever always fixed. Insidelever always unlocked for immediateegress.ND25Blank plate outside. Inside leveralways unlocked for immediate egress.
The RX switch is required to activate the ALK. The RX switch monitors the pushbar and will signal the ALK to go into alarm when the pushbar is depressed. The RX switch also allows free in...