alk come with rx

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ALK kit comes with standard RX switch. It can be ordered without the RX switch or with LX switch as an option.
The current Von Duprin ALK comes standard with the External Inhibit feature.
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...
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...
For motor driven Chexit devices shipped from the factory after 8-24-2015, the RX switch is standard, part number 116717-00.    
For solenoid driven Chexit devices shipped from the factory prior to 8-24-2015, the RX switch is ordered as a "Special CX-RX switch" by SSC or distributors.  The switch may only be installed o...
Standard 98/99 exit alarm ALK devices are available with cylinder dogging option as of October, 2011. The device can be ordered standard with cylinder dogging and exit alarm ALK option on non fi...
The PS9 power supply was discontinued.  The new exit alarm ALK can either use a 9VDC battery or 24VDC regulated power supply. There is no direct replacement for Von Duprin PS9 power supply. Cur...
All new 22, 33/35A and 98/99 series exit devices with exit alarm ALK option can be hard wired to the PS902 power supply as a standard  feature.
The ALK uses a 1 1/4" mortise cylinder with straight cam. (NO DOGGING)