Description
The GST DC-M9414R is a high-performance, UL-listed conventional acoustic notification appliance engineered to deliver clear, audible emergency evacuation signals across commercial, institutional, and industrial facilities. Designed for indoor wall-mount applications, this sounder operates across a regulated 16 to 33 VDC / VFWR voltage range, integrating seamlessly with standard 24V DC conventional Fire Alarm Control Panels (FACP) and Notification Appliance Circuits (NAC). Featuring field-selectable tone patterns and sound output levels, the GST DC-M9414R offers system designers and installers a dependable, energy-efficient audible warning solution.
Technical Specifications Table
| Model Assignment | GST DC-M9414R (Red Enclosure) |
| Manufacturer Series | GST DC-M9414 Series Wall Mount Sounder by GST (Gulf Security Technology / Carrier) |
| Country of Origin | China |
| Device Type | Conventional Wall-Mount Audible Notification Appliance |
| Operating Voltage | Regulated 16 to 33 VDC, 16 to 33 VFWR |
| Alarm Operating Current | 40 mA at 24 VDC nominal |
| Tone Pattern Selection | Field-configurable jumper: Temporal (Code 3) or Steady output |
| Sound Level Selection | Field-configurable jumper: High dB or Low dB output |
| Peak Sound Pressure Level | Up to 95 dB(A) at 1 meter (depending on configuration) |
| Wiring Gauge Capacity | 12 AWG to 18 AWG (0.75 mm² to 2.50 mm²) field wire terminals |
| Back Box Compatibility | Standard single-gang electrical box, 2-1/2 in. (64 mm) deep |
| Mounting Orientation | Indoor surface wall mount |
| Housing Material & Color | Flame-retardant ABS / Polycarbonate plastic, Fire Red |
| Operating Temperature | 32°F to 120°F (0°C to 49°C) |
| Operating Humidity Limit | 0% to 93% RH non-condensing moisture boundaries |
| Agency Compliance & Listing | UL Listed (Audible Notification Appliances for Fire Alarm Systems) |
⚙️ Engineering & Architecture Resources
Ensure all audible notification appliance spacing, ambient decibel derating, and loop voltage drop calculations adhere strictly to local building codes and NFPA 72 National Fire Alarm and Signaling Code standards prior to final installation.
📥 Download Official Technical Submittal Sheet (DC-M9414 Series)
Field-Configurable Acoustics & Efficient Circuit Optimization
The GST DC-M9414R wall-mount sounder provides life safety engineers with the flexibility to adapt signaling patterns directly at the device level during commissioning. Through straightforward onboard jumper selections, technicians can configure the output for either a temporal Code 3 pattern (required for standard emergency evacuation) or a continuous steady tone for general alarm signalling. Additionally, the unit incorporates an output intensity jumper that switches between high and low decibel settings, allowing optimal sound penetration without over-saturating smaller confined spaces or acoustic corridors.
Engineered for optimized circuit loading, the GST DC-M9414R draws a modest 40 mA at nominal 24 VDC. This low-current demand significantly reduces total line voltage drops over long cable runs and maximizes the number of notification appliances that can be placed on a single conventional NAC output. Its regulated wide-voltage tolerance (16 to 33 VDC/VFWR) ensures full acoustic performance even during secondary battery standby states when panel supply voltages drop.
The sounder’s mechanical layout simplifies rough-in and termination. It mounts securely to a standard 2-1/2 inch single-gang electrical junction box, accepting field wiring ranging from 18 AWG to 12 AWG via heavy-duty screw terminals. Its flame-retardant, high-visibility red finish provides unmistakable identification for life safety notification in hallways, stairwells, office floors, and utility rooms.
- Selectable Evacuation Tones: Integrated jumpers allow immediate toggling between temporal Code 3 and continuous steady acoustic outputs on-site.
- Optimized Power Management: Low 40 mA operational draw preserves power supply reserves and simplifies battery standby calculations.
- Wide Operating Range: Fully functional across regulated 16–33 VDC and full-wave rectified (VFWR) lines for broad panel compatibility.
- Standard Box Mounting: Designed for standard indoor single-gang electrical enclosures, cutting down installation time and labor costs.
Frequently Asked Questions (FAQ)
Q1: What is the main difference between the GST DC-M9414R and the DC-M9414W models?
A: The GST DC-M9414R features a standard emergency red enclosure, whereas the DC-M9414W comes in a white housing designed for architectural blending in neutral interior spaces.
Q2: Does this sounder require an address setting or programming tool?
A: No. The GST DC-M9414R is a conventional notification appliance that operates directly from voltage applied by a conventional NAC loop or output control module; it does not take an SLC device address.
Q3: Can this unit be used with addressable fire alarm systems?
A: Yes. While it is a conventional appliance, it connects to intelligent addressable systems via an addressable control module or sounder circuit module (such as a supervised NAC module).
Q4: How do I switch the sounder from Steady to Temporal tone?
A: The device features field-configurable internal jumpers. Adjusting jumper 1 switches the unit between temporal Code 3 and steady alarm outputs.
Q5: What electrical backbox is required for mounting?
A: The GST DC-M9414R mounts to a standard single-gang electrical box with a minimum depth of 2-1/2 inches (64 mm).
Q6: Is this sounder rated for outdoor use?
A: No. The GST DC-M9414R is listed strictly for indoor wall-mount applications within an operating temperature range of 32°F to 120°F (0°C to 49°C) and non-condensing environments.


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