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Ajax vhfBridge (Casing) for 3rd Party VHF Transmitters
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Ajax vhfBridge (Casing) for 3rd Party VHF Transmitters

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Ajax logo Ajax
  • Up to 8 Potential Outputs
  • For Areas with Unstable Connection
  • Hard Case Enclosure
Link to videos

Ajax vhfBridge casing is a 100-240V transponder that provides a wireless alarm hub with an additional channel to communicate with a monitoring station (Read more)

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There are 2 variants of this product

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PRODUCT DETAILS

The Ajax 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 located where Internet connection is unstable. 

The device is powered from 100-240V~ mains and can be operated from a 12V⎓ backup battery.

The vhfBridge operates as part of the Ajax security system by connecting via the Jeweller secure radio communication protocol to the hub. The hub communication range is up to 1800 meters without obstacles.

The communication channel with the CMS created using vhfBridge can be used as the only or as a backup channel for communicating with the CMS (more reliable option). This means that the hub can simultaneously transmit all events and alarms to the monitoring station of the security company not only through SIA (DC-09), ADEMCO 685, SurGard (Contact ID), and other proprietary protocols but also using vhfBridge.

The transponder receives information about alarms and events from the hub via the Jeweller radio channel. vhfBridge then transmits it to a third-party VHF transmitter over the wires. The VHF transmitter, in turn, transmits all events and alarms to the CMS via a radio channel.

Housed in a tamper proof hard casing which is available in black or white


Interface

Screenshot 2022-07-19 154541.png

Number
Description
1
Screws securing the body lid. Unscrew with bundled hexagon key (Ø 4 mm)
2
Cavity for a 12V backup battery
3
QR code and ID (serial number) of the device
4
Perforated part of the body. It is necessary for tamper triggering in case of dismounting attempts
5
Perforated part of the body for the output of wires of connected detectors and devices


Features:

  • Module for connecting Ajax security systems to third-party VHF transmitters
  • Protected in tamper proof hard casing, in black or white 
  • Grade II
  • Powered from 100-240V~ mains and can be operated from a 12V⎓ backup battery
  • Up to 75 hours4 of autonomous operation
  • Adjustable signalling
  • Connection with a hub at a distance of up to 1,800 meters
  • Alarm transmission within 0.15 seconds
  • Hub ping interval from 12 seconds
  • Hassle-free installation
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SPECIFICATIONS
Specifications
Colour White or 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 (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 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
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 x 64 x 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

Radio frequency bands:
866.0 – 866.5 MHz
868.0 – 868.6 MHz
868.7 – 869.2 MHz
905.0 – 926.5 MHz
915.85 – 926.5 MHz
921.0 – 922.0 MHz
(depends on the region of sale)

Auto-regulated radio signal power: ≤ 20 mW
Blocking encryption based on the AES algorithm
Detector ping interval: 12–300 seconds
Frequency hopping
Protection class
IP50
Operating temperature range
From –10°C to +40°C
Operating humidity
Up to 75%
Overall dimensions
196 x 238 x 100 mm (with casing)
145 x 89 x 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
Lifespan
10 years
VARIANTS
AJA0108 vhfBridge (Casing) (BLACK) In stock
AJA0109 vhfBridge (Casing) (WHITE) In stock
USEFUL FILES AND LINKS
Videos
Files
  vhfBridge (Casing) User Manual
Links*
Ajax website
Ajax support site

* External websites provide additional content that supports the content on connectec.uk however the external Web site is subject to change and is beyond the control of Connectec Ltd. Connectec cannot guarantee the accuracy of content on external websites and does not endorse the information or products on any external websites. You will be subject to the external websites own privacy policy when you follow these links.

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