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