How to connect an alarm system such as a three color stack light to the VCX box.Inside the box use 22-24AGW to connect pins 18, 20, 22, & 24. This provides +24VDC to the internal alarm relays.
Connect the common (0VDC) from the stack light to pin #17.
Connect the +24VDC Green light wire to pin #21
Connect the +24VDC Red light wire to pin #23
Connect the +24VDC Yellow light wire to pin #25