The DSC PRM-4W Polarity Reversal Module ensures synchronized alarms across multiple 4-wire smoke detectors, activating all horns when one detector senses smoke. It reverses power polarity upon alarm signals from the control panel, providing reliable and coordinated notification for enhanced safety.

• Enables tandem connection for 4-wire smoke detectors and alarms.

• Activates all connected smoke detector horns when any detector alarms.

• Reverses power polarity based on control panel alarm signals.

• Compatible with DSC FSA series 2- and 4-wire smoke detectors.

• Ideal for ensuring coordinated alarm notification in residential and commercial settings.

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