Conventional loop interface module BNB-330A

For up to 32 conventional detectors. Conventional loop voltage is selectable to 15 or 24 V. Modular unit for mounting on DIN rail. 

The conventional detectors are connected to a two-wire sub loop. The sub loop is monitored for broken line by an end of line unit BNY-330. As default a short circuit of the sub loop will give a fault warning, but the unit may be configured to give an alarm instead.