Features

The Series Resistor for WSO (Wired Sensor Output) and Initiating Device Circuits (IDCs) is an essential component used to ensure proper supervision and operation of conventional initiating circuits. This resistor is typically installed in series with devices such as manual pull stations or sensors to meet electrical requirements for end-of-line supervision. It enables accurate fault detection, such as open or short circuits, ensuring that the fire alarm control panel maintains reliable system monitoring. The resistor is precisely rated to match panel specifications and plays a critical role in maintaining code compliance and system integrity.