AJAX VHF MultiTransmitter Wireless Integration

Product code: 25073420 // MPN: 25353.92.WH1

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€212,85 (inc. VAT)

Available from 1 to 3 days

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VHFBridge is a transponder that provides a hub with an additional channel to communicate with a monitoring station. With vhfBridge you can use Ajax systems in cities where Internet connection is unstable, in nature reserves, mountain and desert areas
Alarms and events of the system are transmitted via VHF radio waves over tens of kilometres1. vhfBridge can be used as a primary or a backup communication channel
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
Similar to other Ajax devices, vhfBridge connects to a hub in the app by scanning a QR-code. The transponder casing has perforated areas for more organized wiring. Outputs are configurable with Ajax apps for smartphones and computers

Compatible with Ajax central units : Hub 2, Hub Plus, Hub 2 Plus

Tech specs

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 range extenders : +
Compatibility with third-party VHF radio transmitters : vhfBridge connects to any VHF transmitter with relay inputs
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 protocol : 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)