Elaborate autonomy
You can build in a 7 Ah backup battery inside a vhfBridge casing. It will feed a VHF transmitter with up to 2A current consumption. Therefore, the transmitter doesn't need to have a separate battery, which makes maintenance less frequent.
In case of a power outage at a facility, the transponder and the transmitter operate on a backup battery for up to 75 hours4 while still transmitting events to a central monitoring station.
Reactions to threats
Planned actions
In case of a power outage at a facility, the transponder and the transmitter operate on a backup battery for up to 75 hours4 while still transmitting events to a central monitoring station.
Reactions to threats
Planned actions
Tech specs
| Color | White and black |
|---|---|
| Classification | Transponder for communication with the monitoring station via a VHF transmitter |
| Installation | Indoors |
| Number of potential outputs | 8 |
| Output types | Positive trip and negative trip (depends on the settings) |
| Transmission types | Pulse and bistable (depends on the settings) |
| Recommended VHF transmitters | Hawk VHF Alarm Transmitter from FSK Electronics TX750C from RDC TR-41 from Puper |
| Compatible with Ajax central units | Operates with Hub 2, Hub Plus, Hub 2 Plus |
| Compatible with Ajax range extenders | + |
| Compatibility with third-party VHF radio transmitters | vhfBridge connects to any VHF transmitter with relay inputs Recommended models |
| Support for photo verification of alarms | No |
| Primary power supply | 100–240 V, 50/60 Hz |
| Backup power supply | 12 V DC, up to 75 hours of power for a transponder and a transmitter |
| Supported battery type | 12 V battery with a full charge cycle of up to 30 hours. The maximum battery size installed in the casing should be 150 × 64 × 94 mm |
| Recommended battery type | 12 V battery with a capacity of 4 Ah or 7 Ah Backup battery is not included in the set |
| VHF transmitter power | 12 V DC, 2 A |
| Anti-sabotage | Protecting against forgery Jamming notifications Tampers against opening and removal Backup battery |
| Jeweller radio technology | Communication range — up to 1,800 meters in a line of sight Two-sided communication between devices Operating frequencies: 868.0–868.6 MHz Auto-regulated radio signal power: ≤ 25 mW Blocking encryption based on the AES algorithm Detector ping interval: 12–300 seconds Frequency hopping |
| Maximum radio signal power | ≤ 25 mW |
| Protection class | IP50 |
| Operating temperature range | From –10°C to +40°C |
| Operating humidity | Up to 75% |
| Overall dimensions | 196 × 238 × 100 mm (with casing) 145 × 89 × 51 mm (without casing) |
| Weight | 840 g (with casing) 165 g (without casing) |
| Warranty | Replacement and repair within 24 months of the date of sale. |
| Complete set | vhfBridge Power cable 12 V battery connection cable Installation kit Casing (depends on a set) Quick start guide |
| Lifespan | 10 years |