The Ajax EN54 Fire ReX Jeweller White Wireless Fire Alarm Signal Range Extender is The Ajax EN54 Fire ReX Jeweller White is a professional wireless fire alarm signal range extender certified to European EN 54-25 standards. Designed specifically for the Ajax EN54 fire safety product line, it amplifies and extends the radio signal coverage between the central Control and Indicating Equipment (CIE) and remote fire detection devices, overcoming structural obstacles like steel and concrete. Housed in an architectural white casing, this addressable range extender supports both Jeweller and Wings wireless protocols, enabling the relay of critical fire alarms as well as photo verification data. Featuring a built-in Ethernet interface for redundant wired connection, it ensures continuous, secure, and compliant fire safety monitoring in commercial and public facilities.
Ajax EN54 Fire ReX Jeweller White Wireless Fire Alarm Signal Range Extender
The Ajax EN54 Fire ReX Jeweller White is a professional wireless fire alarm signal range extender certified to European EN 54-25 standards. Designed specifically for the Ajax EN54 fire safety product line, it amplifies and extends the radio signal coverage between the central Control and Indicating Equipment (CIE) and remote fire detection devices, overcoming structural obstacles like steel and concrete. This makes it an essential tool for professional security networks.
Housed in an architectural white casing, this addressable range extender supports both Jeweller and Wings wireless protocols, enabling the relay of critical fire alarms as well as photo verification data. Featuring a built-in Ethernet interface for redundant wired connection, it ensures continuous, secure, and compliant fire safety monitoring in commercial and public facilities. Installing this device ensures continuous stability and reliability in any access control or surveillance system.
EN 54 Certified Fire Extender
Fully certified under the European EN 54-25 and EN 54-13 standards, making it compliant for installation in regulated commercial and public-sector fire systems.
Dual Jeweller & Wings Protocols
Relays both the Jeweller protocol for instant fire alarm signals and the Wings protocol for transferring high-resolution photos from visual verification detectors.
Wired Ethernet Communication Backup
Includes an Ethernet port allowing wired connection to the central panel, bypassing radio interference or thick structural concrete barriers.
System Coverage up to 35 km²
Supports the connection of up to 5 Fire ReX units to a single central panel, allowing the fire system coverage to scale across large industrial complexes.
Military-Grade Radio Encryption
All transmitted data is protected using two-way block encryption with a floating key, preventing jamming, spoofing, or sabotage attempts.
Long Backup Battery Autonomy
Operates from mains power and incorporates a rechargeable backup battery to maintain range extender services for up to 35 hours during mains power loss.
Note: Professional installation and system layout design in accordance with BS 5839 or local fire regulations are recommended.
KEY BENEFITS
- Ensures stable communication for fire detectors in large, multi-story, or metal-clad buildings.
- Certified to EN 54 standards for use in regulated and professionally monitored fire systems.
- Relays both real-time fire alarm events and high-speed photo verification data.
- Ethernet interface provides a reliable wired link to bypass heavy radio interference.
- Built-in tamper protection alerts the system instantly if the device is opened or detached.
- Rechargeable backup battery ensures up to 35 hours of operation during local power cuts.
- Supports the extension of up to 199 connected security and fire detection devices.
- Features dynamic frequency hopping to automatically clear signals from jamming attempts.
- Fast and simple mounting using the SmartBracket installation panel with built-in level.
- Secures all radio communications with device authentication and floating key block encryption.
KEY FEATURES
- Model Code: 135975.358.WH1
- Wireless Technology: Jeweller (events) + Wings (images)
- Wireless Range: Up to 1,800 m in open space
- Ethernet Interface: RJ45 port (10/100 Mbps)
- Compliance Standards: EN 54-25, EN 54-13, EN 54-21
- Maximum Devices: Relays up to 199 devices (hub dependent)
- Max extenders per Hub: Up to 5 Fire ReX units
- Power Supply: Mains 110–240 V AC, 50/60 Hz
- Backup Battery: Built-in rechargeable Li-Ion battery
- Backup Runtime: Up to 35 hours (with Ethernet disabled)
- Tamper Protection: Yes (front cover & back wall tamper)
- Encryption: Block encryption with dynamic floating key
- Enclosure Rating: IP30 protection rating
- Operating Temperature: Rated from -10°C to +40°C
- Net Weight: Solid build at approx. 330g
IDEAL FOR
- Regulated fire alarm installations in schools, colleges, and university campuses.
- Multi-story office blocks, hotels, and guest houses with thick concrete floors.
- Large industrial warehouses, manufacturing plants, and metal-clad structures.
- Public buildings, town halls, and community centers requiring EN 54 compliance.
- Retail shopping malls and retail parks spanning wide geographic areas.
- Residential apartment complexes with remote service risers and stairwells.
- Sites where fire detectors are mounted in distant outbuildings or annexes.
- Environments prone to radio signal attenuation or high electromagnetic noise.
- Renovations of historic buildings where physical wiring runs are restricted.
- Properties requiring continuous fire safety operation during prolonged power cuts.
- Wide-scale campus configurations requiring multiple range extenders.
- Professional fire security systems integrated with visual alarm verification.
SYSTEM COMPATIBILITY
- Exclusively compatible with Ajax EN54 Fire Hub Jeweller control panels.
- Supports range extension of Ajax EN54 FireProtect (Sounder/VAD) Jeweller.
- Compatible with Ajax EN54 FireProtect (Smoke/Sounder) fire detectors.
- Supports range extension of Ajax ManualCallPoint Jeweller buttons.
- Relays photo verification from Ajax MotionCam series detectors (where supported).
- Works in conjunction with standard Cat5e or Cat6 Ethernet cabling.
- Requires standard 110-240V AC mains power line connection.
- Configurable via Ajax Security System app on mobile and desktop.
- Integrates with Ajax PRO Desktop monitoring station software.
- Supports Central Monitoring Station (CMS) fire signal alerts.
- Works alongside Ajax ReX 2 Range Extenders (subject to system limits).
- Supports secure Over-the-Air (OTA) range extender firmware updates.
- Fits standard Ajax SmartBracket wall mounting plates.
TECHNICAL SPECIFICATIONS
| Specification |
Details |
| Brand |
Ajax |
| Model |
Ajax EN54 Fire ReX Jeweller White |
| Article Number |
135975.358.WH1 |
| Product Type |
Wireless Fire Alarm Signal Range Extender |
| Compliance Certifications |
EN 54-25, EN 54-13, EN 54-21 |
| Wireless Technology |
Jeweller & Wings Radio Protocols |
| Wireless Range |
Up to 1,800 m (open space) |
| Relay Capacity |
Up to 199 devices (hub dependent) |
| Wired Interface |
1 × Ethernet RJ45 port (10/100 Mbps) |
| Max Extenders per Hub |
Up to 5 Fire ReX range extenders |
| Encryption |
Floating key block encryption |
| Device Authentication |
Yes (prevents spoofing & sabotage) |
| Anti-Jamming & Hopping |
Yes (automatic frequency hopping) |
| Tamper Protection |
Yes (enclosure open & wall detach detection) |
| Power Supply |
110–240 V AC, 50/60 Hz |
| Backup Battery |
Built-in rechargeable Li-Ion battery (2 Ah) |
| Backup Battery Runtime |
Up to 35 hours (with Ethernet off) |
| IP Rating |
IP30 (Indoor Use Only) |
| Operating Temperature |
-10°C to +40°C (14°F to 104°F) |
| Operating Humidity |
Up to 75% (non-condensing) |
| Dimensions |
163 mm × 163 mm × 36 mm |
| Net Weight |
Approx. 330 g (0.73 lbs) |
| Warranty |
24 Months Manufacturer Warranty |
FREQUENTLY ASKED QUESTIONS (FAQs)
What is the primary function of the Ajax EN54 Fire ReX Jeweller?
The Fire ReX Jeweller is a wireless signal range extender designed to relay encrypted alarms, events, and photos between EN54-certified fire devices and the central fire hub, expanding system coverage.
Which central panels are compatible with the Fire ReX?
It is compatible with the Ajax EN54 Fire Hub Jeweller control panels. It is not compatible with standard security hubs like Hub or Hub Plus.
Does it support EN 54 certification?
Yes, the Fire ReX is fully certified to EN 54-25 and EN 54-13 standards, satisfying regulatory requirements for commercial and public installations.
How many Fire ReX units can I add to one system?
You can connect up to 5 Fire ReX range extenders to a single compatible EN54 Fire Hub, expanding coverage up to 35 square kilometers.
What is the purpose of the Ethernet port?
The built-in Ethernet port allows you to connect the range extender to the central hub via a wired network, ensuring communication if the radio signals are blocked by thick concrete or steel.
How long does the backup battery last?
The built-in rechargeable Li-Ion battery provides up to 35 hours of autonomous operation if the main power grid fails (with the Ethernet connection disabled).
Does it relay photos from MotionCam detectors?
Yes, because it supports the Wings radio protocol in addition to Jeweller, it can relay photo verification images captured by compatible detectors.
Is the Fire ReX suitable for outdoor mounting?
No, it carries an IP30 protection rating and is designed for dry, indoor installation only.
How does it prevent signal jamming?
It uses automatic frequency hopping. If jamming or interference is detected, the device automatically switches to a clear frequency channel and alerts the central hub.
How do you install and register the Fire ReX?
You mount it using the supplied SmartBracket panel. To register it, simply scan the QR code on the back of the device using the Ajax mobile app.
