The PW-330MMCR is an intelligent, two-wire Input/Output Module featuring dual independent channels: one dedicated input and one dedicated output. Two distinct LEDs provide real-time status indication for each channel.

The input channel monitors dry (passive) switch contact inputs and reports their status to the fire alarm control panel. Under normal conditions, the input LED flashes; it illuminates steadily to indicate a short-circuit fault, and it can be deactivated if required for specific applications. The output channel provides a single Form A relay contact to control external equipment such as rolling shutters, fire elevators, solenoid valves, and conventional notification appliances. The output LED flashes during normal operation and can also be disabled when necessary. For streamlined installation, both the communication line and the input loop utilize a non-polarized wiring design.