rx power 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.
There are three main failures with an ALK.  Problems are usually caused by a bad power source(battery), bad RX/LX Switch or a bad circuit board.  Try installing a new battery and wai...
The Von Duprin exit alarm ALK draws about .25 amp. PS902 power supply powers up to 8 exit alarm ALK. PS904/914 powers up to 16 exit alarm ALK. PS906 powers up to 24 exit alarm ALK. 
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.
The following may cause the ALK to go into alarm: Make sure red and blue wires on the RX switch are connected to the exit alarm ALK terminal block and yellow wire is taped off. Check the red an...
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...