Simplex Addressable Ceiling Mounted Fire Alarm Speaker

Simplex Addressable Ceiling-Mount Fire Speaker

The Simplex SO Series Addressable Ceiling-Mount Speakers are used in addressable fire alarm systems, connected and controlled via the IDNAC Signaling Line Circuit (SLC). The device delivers high-quality audio and voice messages, complies with NFPA 72, and is suitable for installation in buildings, offices, hotels, residential areas, and more.

Key Features

• Flexible design: Speaker body, cover plates, surface-mount back boxes, and wire guards can be selected separately to meet all installation requirements.

• ADA compliance: Supports accessibility for people with disabilities.

• Durable material: Flame-retardant and impact-resistant thermoplastic housing.

• Easy installation: Ceiling-mount with a standard 4 in. (101.6 mm) electrical box; surface-mount or weatherproof options with compatible accessories.

• Integrated status LED: Provides status indication during polling.

• Quick testing: Supports magnet test for fast maintenance checks.

• Electronic supervision: Allows T-tap wiring (Class B) to reduce installation costs.

• High-quality audio: Available in Standard (400 Hz – 4000 Hz) and High Fidelity (200 Hz – 10,000 Hz) models.

• Selectable power settings: 1/4 W, 1/2 W, 1 W, 2 W at 25 VRMS or 70.7 VRMS.

• Standards compliance: UL 1480, ULC S541, NFPA 72 (520 Hz Low Frequency for sleeping areas).

Product Models

• Ceiling-Mount Standard Speakers:

  • 49SO-APPLC / 49SO-APPLC-BA – speaker unit (cover plate and back box ordered separately).

• Ceiling-Mount High Fidelity Speakers:

  • 49HF-APPLC / 49HF-APPLC-BA – high-quality speaker unit (cover plate and back box ordered separately).

• Ceiling-Mount Weatherproof Speakers:

  • 49SO-APPLC-O / 49SO-APPLC-O-BA – outdoor/weatherproof speakers, to be used with WP cover plate and back box.

• Cover Plates:

  • Available in Black, Red, White – with options for “FIRE”, “ALERT” text or Simplex logo.

• Surface-Mount & Weatherproof Back Boxes:

  • 49WPBB-SOCR (Red), 49WPBB-SOCW (White).

• Wire Guards:

  • 49WG-SOCR (Red), 49WG-SOCR-O (Red, WP).

Technical Specifications

• Dimensions: 180 × 180 × 32 mm (H × W × D).

• IDNAC SLC power: 23–30 VDC, 9 mA consumption.

• Wiring: Terminal block supports 18–12 AWG, in/out wiring.

Environmental Ratings:

• Indoor: 0°C to 49°C, 10–93% RH.

• Outdoor (WP): –40°C to 66°C, 95% RH at 60°C.

Acoustics:

• Frequency response: 400–4000 Hz (SO), 200–10,000 Hz (High Fidelity).

• Power: 1/4 W, 1/2 W, 1 W, 2 W (25 VRMS or 70.7 VRMS).

• Sound output: 79–91 dBA (UL 1480 & ULC S541).

Wiring capability: Supports Class B T-Tap, maximum wiring length 10,000 ft (3,048 m).