The vhfBridge enables the use of Ajax systems in areas with an unstable or no Internet connection, such as nature reserves, mountainous, and desert regions. Alarms and events of the system are transmitted via VHF radio waves over a vast distance. vhfBridge can be used as a primary or a backup communication channel.

The Ajax vhfBridge is compatible with Hub 2, Hub Plus, Hub 2 Plus, ReX and ReX 2. vhfBridge does not work with Hub, ocBridge Plus, uartBridge and third-party security control panels.

You can add a 7Ah/7.2Ah and 8Ah backup battery inside a vhfBridge casing which can also power up the armed response radio transmitter. In the event of power failures, the vhfBridge and AR Radio Transmitter will continue operating for up to 75 hours.

Product Code: 1925353-92-WH1

FEATURES OF THE AJAX vhfBRIDGE:
– Communication range of up to 1,800 meters in a line of sight
– Alarm transmission within 0.15 seconds
– Powered by a 100-240 VAC mains supply and can operate on a 12 V battery backup (battery not included)
– Place for a 7ah backup battery
– Perforated areas in the casing for cable management
– 8 adjustable positive/negative trip outputs for sending events to a VHF transmitter
– Tamper detecting when trying to open or remove unit from the surface
– Up to 75 hours of autonomous operation
– Uncompromised security of communication
– Hassle-free installation

INSTALLATION AND SET-UP
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.

SPECIFICATIONS OF THE AJAX vhfBRIDGE:
– Compatibility: Operates with Hub 2, Hub Plus, Hub 2 Plus, ReX and ReX 2
– 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)
– 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.
– Maximum battery size fitted in casing: 150 mm 64 mm 94 mm
– Recommended battery type: 12 V battery with a capacity of 4 Ah or 7 Ah (Backup battery not included)
– VHF transmitter power: 12 V DC, 2 A
– Protecting against forgery: Yes
– Jamming notifications: Yes
– Tampers against opening and removal: Yes
– Communication range: Up to 1,800 meters in a line of sight
– Two-sided communication between devices: Yes
– Operating frequencies: 868.0-868.6 MHz or 868.7 – 869.2 MHz (depending on the region of sale)
– Auto-regulated radio signal power: 25 mW
– Blocking encryption based on the AES algorithm: Yes
– Detector ping interval: 12-300 seconds
– Frequency hopping: Yes
– Maximum radio signal power: 25 mW
– Protection class: IP50
– Operating temperature range: From 10 C to +40 C
– Operating humidity: Up to 75%