Description

The Simplex 4903-9450 is individually address and receives power, supervision, and control signals from a TrueAlert addressable Signaling Line Circuit (SLC) channel. When activated, the Simplex 4903-9450 strobes flash at a synchronized rate, and the horns sound with synchronized output.

TrueAlert addressable operation allows strobes to be wire onto the same two-wire SLC circuit as horns but with the separately controlled operation. Typical applications are audible notification appliances activate as “on-until-silenced” and visible notification appliances activated as “on-until-reset.”

Also, fire alarm control panels typically activate both audible and visible notification upon receipt of an alarm. At the direction of an authorized operator (or by pre-determine program), audible notification appliances may be silence before the alarm condition is reset while the visible notification appliances are kept activate until the alarm condition is reset (on-until-reset). This operation has traditionally required two different circuits (four-wire operation).

Features / Specifications

• Supervision of each individual appliance’s wiring and connections
• Magnetic test diagnostics to assist checkout and testing of appliances and wiring
• Rugged, high impact, flame retardant thermoplastic housings
• Visible appliances connected to the same circuit operated at a synchronized 1 Hz flash rate
• Rear of housing does not extend into the box and easily mounts to the single gang, double gang, or 4-inch box
• In/out wiring terminals, 18 AWG to 12 AWG