


AJAX
AJAX VHF Bridge Jeweller Transponder
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Usually ready in 24 hours
Ensure Unfailing Alarm Delivery with the AJAX VHF Bridge
Introducing the AJAX VHF Bridge, a crucial transponder that provides your Ajax security system with an additional, ultra-reliable channel to communicate with a monitoring station. Designed for ultimate resilience, this module allows you to use Ajax systems in locations with unstable or non-existent internet connections, such as nature reserves, mountainous regions, or remote properties. By transmitting alarms and system events over VHF radio waves across vast distances, the vhfBridge ensures your security is never compromised, serving as either a primary or a backup communication link.
Core Features & Benefits
- Internet-Free Alarm Transmission: Guarantees that alarms are sent to the central monitoring station via VHF radio waves, completely independent of an internet connection.
- Universal Compatibility: Seamlessly integrates with any third-party VHF transmitter that has relay inputs, offering you flexibility and choice.
- Proprietary Jeweller Radio Technology: Leverages Ajax's secure, two-way communication protocol. It features block encryption, protection against spoofing, and frequency hopping to prevent jamming, ensuring all data is secure.
- Extended Communication Range: Achieves a remarkable radio communication range of up to 1,800 meters (5,900 ft) in open space between the module and the Ajax hub or a range extender.
- Impressive Power Autonomy: In the event of a power outage, an optional 7 Ah backup battery (not included) can power both the vhfBridge and the connected VHF transmitter for up to 75 hours.
- Advanced Anti-Sabotage: The device is equipped with two tampers that provide instant notification of any attempt to open the casing or detach it from the surface.
- Effortless Configuration: All 8 transistor outputs are easily configured through the user-friendly Ajax mobile and desktop apps, allowing you to specify exactly which events trigger an alarm.
Technical Specifications
| Feature | Specification |
|---|---|
| Classification | Transponder for communication with a monitoring station via VHF transmitter |
| Installation | Indoor only |
| Hub Compatibility | Hub Plus, Hub 2, Hub 2 Plus, Hub Hybrid |
| Range Extender Compatibility | ReX, ReX 2 |
| Communication Technology | Jeweller (868.0–868.6 MHz) |
| Radio Communication Range | Up to 1,800 m (5,900 ft) in an open space |
| Number of Outputs | 8 potential transistor outputs |
| Output Types | High potential (positive trip) & Low potential (negative trip) |
| Operation Modes | Pulse and bistable |
| Main Power Supply | 100–240 V, 50/60 Hz |
| Backup Power | 12 V⎓ battery, 4 or 7 Ah (not included) |
| VHF Transmitter Power Output | 10.5–15.5 V⎓, up to 2 A |
| Sabotage Protection | Device authentication against spoofing, 2 tampers for casing intrusion/detachment |
| Operating Temperature Range | From -10°C to +40°C (14°F to 104°F) |
| Operating Humidity | Up to 75% |
| Enclosure Protection Class | IP40 |
| Dimensions | 196 × 238 × 100 mm (7.72″ × 9.37″ × 3.94″) |
| Weight | 840 g (29.63 oz) |
Manufacturer Technical Data
| Product Spec Sheet |
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Frequently Asked Questions
Answers to frequently asked questions
Does NexGen Computing conduct regular security audits?
Yes, we regularly conduct security audits and vulnerability assessments to identify and address potential security weaknesses, maintaining a high level of security and compliance with industry standards.
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We reserve the right to update or modify our policies at any time. Changes will be posted on our website, and your continued use of our products and services constitutes acceptance of any changes.
Where can I find more information or ask additional questions?
For more information or assistance, please visit our website at www.nexgencomputing.co.za or contact us at support@nexgencomputing.co.za.
How does NexGen Computing handle shipping and delivery?
Orders are processed promptly, with delivery details provided at checkout. Tracking information will be emailed once your order ships.
What is the return and refund policy?
Refunds are typically issued for defective or incorrect items within 14 days of receipt. For detailed information, please refer to our Refund Policy.
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