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Simplex 49AO-WRF True Alert ES Addressable Electronic Horn

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Simplex 49AO-WRF True Alert ES Addressable Electronic Horn

The Simplex 49AO-WRF is a True Alert ES addressable audible-only (A/O) notification appliance designed for wall mounting. It delivers a harmonically rich horn output and integrates with Simplex fire alarm systems via IDNAC Signaling Line Circuits (SLCs), providing power, supervision, and control over a single two-wire circuit. This device is ideal for fire alarm signaling in commercial, institutional, and industrial settings.
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  • The 49AO-WRF leverages True Alert ES technology for advanced diagnostics, low power consumption, and efficient installation.
  • Optional accessories: Surface-mount backbox (e.g., 49WF-BB) for specific mounting needs.
  • Self-Test Mode: On-board sensor detects horn output and reports status to the control panel
  • Magnet Test: LED pulses to indicate address, followed by a brief horn sound for operational verification
Manual Manual
  • Type: Addressable audible-only (A/O) electronic horn
  • Housing:
    • Color: Red with white “FIRE” lettering
    • Material: Durable, flame-retardant polycarbonate
    • Mounting: Wall-mount, includes matching mounting plate
    • Dimensions: 5.125 in. H x 5.125 in. W x 1.5 in. D (130 mm x 130 mm x 38 mm)
    • Weight: Approximately 0.4 lbs (0.18 kg)
  • Audible Features:
    • Sound Output: Harmonically rich electronic horn tone
    • Temporal Patterns:
      • Temporal Code 3 (0.5 sec on/off, repeats, standard fire alarm pattern)
      • Temporal Code 4 (100 ms on/off, repeats, for CO signaling)
      • March Time (selectable 20, 60, or 120 beats per minute)
      • Continuous tone
    • Volume Settings: High or low output (~6 dBA difference), selectable via appliance DIP switch or control panel
    • Sound Pressure Level (SPL):
      • High: Up to 90 dBA at 10 ft (3 m)
      • Low: Approximately 84 dBA at 10 ft (3 m)
  • Electrical Specifications:
    • Operating Voltage: 23-31 VDC (regulated 29 VDC via IDNAC SLC)
    • Current Draw:
      • High output: ~20-25 mA
      • Low output: ~15-20 mA
    • Wiring:
      • Two-wire IDNAC SLC (combines power and communication)
      • Supports Class B (T-tapped, supervised) or Class A (in/out wiring) configurations
      • Wire Size: 18 AWG to 12 AWG (0.82 mm² to 3.31 mm²)
  • Communication:
    • Protocol: IDNAC addressable SLC
    • Addressing: Individually addressable (up to 127 devices per SLC loop)
    • Supervision: Continuous monitoring for faults, shorts, or opens
  • Compatibility:
    • Control Panels: Simplex 4007ES, 4010ES, 4100ES, and other IDNAC-capable panels
    • Systems: Works with Simplex fire alarm control units providing IDNAC SLCs
  • Environmental Specifications:
    • Operating Temperature: 32°F to 122°F (0°C to 50°C)
    • Humidity: 10% to 93% non-condensing
    • Location: Indoor use only
    • Ingress Protection: NEMA 1 equivalent
  • UL 464: Standard for Audible Signal Appliances
  • ULC-S525: Audible Signal Devices
  • NFPA 72: National Fire Alarm and Signaling Code
  • ADA: Americans with Disabilities Act compliant

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