FireWatcher 821 I/O Module

FireWatcher 821 I/O Module

The input-output module FW821 is a UL / ULC listed device according to UL864 and ULC-S527 for fire protectiion signaling systems for indoor use.

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FW821 provides one 24VDC output and in addition monitoring for one feedback input contact. The input line is monitored for open line faults and ground faults and the contact must be wired with an end-of-line resistor.

The output line is monitored for open line, short circuit faults, ground faults, external 24VDC power source loss and an end-of-line resistor is needed as well.

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