There is a total of 4 red buttons on the front of the Senior Swing control box. To turn on the display, press and hold any 2 of the 4 red buttons at the same time for approximately 3-5 seconds. Y...
The Von Duprin exit alarm ALK shipped after November 2010 are new style boards and can be identified by the 3 terminal blocks and LED. Only these ALK will work with 24vdc power supply.