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The L-Series 4-Wire Wall-Mount Sounder + Strobe (P4RL) is a conventional (dc-operated) audible and visual alarm device intended to alert building occupants of emergency situations.

The P4RL provides seven field-configurable brightness settings. These settings are controlled by a switch on the back of the unit.

A rotary switch on the rear of the unit allows field selection of the audible alarm signal and volume. Six audible alarm signals and two volume settings are available.

The mounting plate has a shorting spring that provides wiring continuity before devices are installed. This enables installers to verify the wiring without installing the device. The device need not be installed until late in the construction process, reducing the risk of damage.

Features

• Plug-in design with minimal intrusion into the back box
• Field-selectable brightness settings: 15, 30, 75, 95, 110, 135, and 185 candela
• Brightness setting indicator on front of unit
• Six field-selectable audible alarm tones including ISO 8201 Temporal 3 pattern (½ second on, ½ second off, ½ second on, ½ second off, ½ second on, 1½ off and repeat)
• Two field-selectable audible alarm volume settings
• Sound output: 88 dBa on 24 Vdc systems
• Designed for use in 12 Vdc, 24 Vdc, or 24 V FWR (full wave rectified) systems
• Mounting plate shorting spring allows wiring continuity check before device installation
• Tamper-resistant construction
• Independent two-wire DC power supply inputs for the sounder and strobe
• An audible alarm signal is broadcast when the sounder input is provided with DC power of the correct voltage and polarity
• The strobe flashes when the strobe input is provided with DC power of the correct voltage and polarity
• Compatible with Pertronic fire alarm control panel External Bell outputs
• Electrically compatible with legacy SpectrAlert and SpectAlert Advance devices
• UL listed to UL 464, "Audible Signaling Devices for Fire Alarm and Signaling Systems, Including Accessories" (public mode)

Note: The product is not able to broadcast a verbal alarm signal.