top of page

FW821

FIRE ALARM I/O MODULE

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

FIRE ALARM I/O MODULE

The input line is monitored for open line faults and ground faults, and the contact must thus be wired with an end-of-line resistor. The output line is monitored for open lines, short-circuit faults, ground faults, and external 24VDC power source loss.

Capabilities

The FW821 input-output module provides one 24VDC output and one feedback input monitor.

Compliance

UL864 / ULC S527 / FM Listed

Addressable

The FW821 is an intelligent addressable module and takes one address on the Signaling Line Circuit (SLC) or Data Communication Link (DCL) of the fire alarm control panel.

  • Useful to confirm a retroactive action

  • Internal electronic address

  • Compatible with EOLR 10K Ohms (FW421)

  • White surface box available as an option (FW800/801)

  • Status LED indicator

bottom of page