1. Product Overview
The Hochiki CHQ-WSB2/WL is an addressable loop-powered Wall Sounder Beacon designed for integration into fire alarm systems. It provides both audible and visual alerts, featuring a range of tones and volumes, and high-intensity LED technology for the beacon. This unit is designed to fit onto a Standard Base or an Isolator Base, offering flexibility in installation.

Figure 1: Front view of the Hochiki CHQ-WSB2/WL Wall Sounder Beacon, showing the red casing and the central beacon element.
2. Key Features
- Single Loop Address: Utilizes a single address on the fire alarm loop for efficient system integration.
- Variable Sound Output: Offers a sound output range of 90 to 102 dB, with 51 user-selectable tones, all compliant with EN54-3 standards.
- High Intensity LED Technology: Features a powerful LED beacon for clear visual indication during an alarm.
- Flexible Mounting: Designed to fit Hochiki Standard or Isolator Sounder Bases.
- Variable Flash Frequency: Allows adjustment of the beacon's flash rate.
- Weatherproof Option: Can be made weatherproof for external use by utilizing the optional WS2-WPK Weatherproof Kit.
3. Technical Specifications
| Specification | Value |
|---|---|
| Model Number | part_B09LD3YX4Q |
| Noise Level | Up to 102 dB |
| Mounting Type | Wall Mount |
| Product Dimensions | 11.2 x 11.2 x 6.7 cm |
| Item Weight | 164 g |
| Colour | Red |
| Compatible Devices | Fire Alarm Systems |
| Voltage | 24 Volts (DC) |
| Control Method | Touch (for configuration) |
| IP Rating | IP21 (internal use, can be weatherproof with kit) |
4. Setup and Installation
Installation of the Hochiki CHQ-WSB2/WL Wall Sounder Beacon should only be performed by qualified and authorized personnel in accordance with local codes, standards, and the manufacturer's detailed installation instructions. This device is an integral part of a life safety system.
4.1. Components Overview

Figure 2: Internal view of the sounder beacon, showing the central light element and connection points. This view is typical for mounting onto a compatible base.
4.2. Mounting
The CHQ-WSB2/WL is designed for wall mounting and requires either a Hochiki Standard Base or an Isolator Base (sold separately) for proper installation and connection to the fire alarm control panel loop.
- Ensure the power to the fire alarm control panel is disconnected before beginning installation.
- Mount the appropriate Hochiki base securely to the wall at the desired location, ensuring it is level and stable.
- Connect the fire alarm loop wiring to the terminals on the base as per the base's specific wiring diagram and the fire alarm system's design documentation.
- Align the CHQ-WSB2/WL sounder beacon with the mounted base and twist clockwise until it locks securely into place.
- Verify all connections are secure and correct.
4.3. Addressing and Configuration
As an addressable device, the CHQ-WSB2/WL requires a unique address to be set, typically via a rotary switch or similar mechanism on the device or its base, before installation onto the loop. Refer to the specific instructions provided with your fire alarm control panel and the sounder base for detailed addressing procedures. Configuration of sound tones and flash frequencies is usually performed via the fire alarm control panel software or dedicated programming tools.
5. Operating Instructions
The Hochiki CHQ-WSB2/WL operates as part of an addressable fire alarm system. Its primary function is to provide audible and visual alerts upon receiving an alarm signal from the fire alarm control panel.
- Alarm Activation: When the fire alarm control panel detects an alarm condition (e.g., from a smoke detector or manual call point), it sends a signal to the CHQ-WSB2/WL.
- Audible Alert: Upon receiving the alarm signal, the sounder will activate, emitting the pre-configured tone at the set volume level (90-102 dB).
- Visual Alert: Simultaneously, the high-intensity LED beacon will flash at its pre-configured frequency, providing a visual warning.
- System Integration: The device's operation is fully controlled by the fire alarm control panel, including activation, deactivation, and fault monitoring.
No direct user interaction is required for the device's normal operation during an alarm event. Any configuration changes, such as tone selection or flash frequency, must be performed by a qualified technician using the fire alarm system's programming interface.
6. Maintenance
Regular maintenance is crucial to ensure the continued reliable operation of the Hochiki CHQ-WSB2/WL Wall Sounder Beacon and the overall fire alarm system. Maintenance should be carried out by qualified personnel in accordance with national and local fire safety regulations and the manufacturer's guidelines.
- Visual Inspection: Periodically inspect the device for any signs of physical damage, discoloration, or obstruction. Ensure the beacon lens is clean and free from dust or debris.
- Cleaning: If necessary, gently wipe the exterior of the device with a soft, damp cloth. Do not use abrasive cleaners or solvents. Ensure no moisture enters the device.
- Functional Testing: Conduct regular functional tests of the sounder and beacon as part of the overall fire alarm system testing schedule. This typically involves activating an alarm to verify the device produces the correct sound and light output.
- System Checks: Ensure the fire alarm control panel reports no faults or errors related to the sounder beacon.
Warning: Do not attempt to open or repair the device yourself. Refer all servicing to qualified fire alarm technicians.
7. Troubleshooting
This section provides general guidance for common issues. For complex problems or system-wide faults, always contact a qualified fire alarm technician.
| Problem | Possible Cause | Action |
|---|---|---|
| Sounder/Beacon does not activate during alarm. |
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| Sounder activates but beacon does not flash. |
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| Beacon flashes but sounder does not activate. |
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| False alarms from the device. |
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8. Warranty and Support
Specific warranty terms and conditions for the Hochiki CHQ-WSB2/WL Wall Sounder Beacon are typically provided with the product packaging or through the authorized distributor/installer. Please refer to the official documentation provided at the time of purchase for detailed warranty information.
For technical support, service, or replacement parts, please contact your authorized Hochiki distributor or the fire alarm system installer. Do not attempt to service the unit yourself, as this may void the warranty and compromise the safety of the fire alarm system.
For general product information, you may visit the official Hochiki website: www.hochiki.com