The input module BSE-320 provides 8 non-monitored and galvanically insulated inputs for digital input devices and other controlling inputs. The module is easily plugged onto a mounting rail inside the fire alarm control panel BS-420 or the controller BC-420.

The inputs have a common connection to an external source, 24V DC. Each input is activated by pulling the terminal to 0V, typically by an open collector output. The module will automatically detect its own address, no Dip-switch or jumper settings are required. The module is intended to be mounted in a closed cabinet. Ambient light should be avoided.