Module for connecting Ajax security systems to third-party VHF transmitters
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.
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.
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.
- Colour: White and black
- Classification: Transponder for communication
- 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)
- Compatible with Ajax central units: Operates with Hub 2. Hub Plus. Hub 2 Plus
- Compatible with Ajax range extenders: No
- Compatibility with third-party VHF radio transmitters: connects to any VHF transmitter with relay inputs
- Support for photo verification of alarms: No
- Primary power supply: 100–240 V. 50/60 Hz
- VHF transmitter power: 12 V DC. 2 A
- Backup power supply: 12VDC. up to 75 hours of power for the transponder and a transmitter
- Type battery Supported: 12V battery with a full charge cycle of up to 30 hours.
- Connection with a hub at a distance of up to 1800 meters
- The maximum battery size installed in the casing: 150 × 64 × 94 mm
- Recommended battery type: 12V battery with a capacity of 4 Ah or 7 Ah
- Backup battery is not included
- Manufacturer Code: 25352.92.BL1