/content/hbtbt/pl/en/search-results.html

    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.

    Overview

    Extension module for 4 inputs, 16 open collector outputs programmable for Alarm 2 or Alarm 3 for ST/PL4 control unit.