rx-lc for an alk

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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...
ALK kit comes with standard RX switch. It can be ordered without the RX switch or with LX switch as an option.
Here is detailed information on why the Von Duprin RX-LC Swtich is required by the AD300 and AD400 993 units.   A low current switch is needed because … -     &nb...
The attached table shows the part numbers for LX-RX and LX-RX-LC switches field installed.
The RX-LC and LX-LC (Low Current) switches are used for current up to 0.05 amps at 24 VDC and the standard RX and LX switches are used for current greater than 0.05 amps up to 0.5 amps at 24 VDC.
The ALK exit alarm will sound when the exterior trim is used to enter from pull side without using access control when an LX latch bolt monitor switch is used instead of RX push bar monitor switch.
Von Duprin 22 series are not available with electric latch retraction EL option. 22 series are the economy device and are only available with RX, LX and exit alarm ALK. EL option is only availa...
Followings are the reason for 98/99 exit alarm ALK not sound when push bar is activated. Make sure key switch on exit alarm ALK is turned on, wait for 20 seconds before you activating the pushba...
Yes.  The exit alarm ALK is shipped standard with a RX, request to exit switch, but can work with the optional LX, latch bolt monitor switch.  If there is no switch in the device it will never alarm.