Emergency Voice/Alarm Communications System
ST/PL4 Extension Module
Extension module for 4 inputs, 16 open collector outputs programmable for Alarm 2 or Alarm 3 for ST/PL4 control unit.
Extension module for 4 inputs, 16 open collector outputs programmable for Alarm 2 or Alarm 3 for ST/PL4 control unit.
Please Sign In to view part numbers available for purchase based on your account