VHFfBridge 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. Module for connecting Ajax security system to third-party VHF transmitters

• Colour: 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 (depending 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: +
• 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
• 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 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 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: Warranty service for 24 months from the date of sale.
• Complete set: vhfBridge
                      Power cable
                      12 V battery connection cable
                      Installation kit
                      Casing (depends on a set)
                      Quick start guide

1. AJAX VHF BRIDGE – Datasheet

Device	Bridge
Type	Transponder