Application for access to the Enterprise API of the Ajax system
We provide access to the Enterprise API to large security and service companies already serving or planning to serve thousands of Ajax security systems.
vhfBridge
Module for connecting Ajax security systems to third-party VHF transmitters
Module with
a casing
a casing
Module without
a casing
a casing
Instant alarm transmission without Internet
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.
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.
Reliability and versatility by design
You can buy vhfBridge without a casing
You can connect any VHF transmitter with relay inputs to vhfBridge
Elaborate autonomy
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.-
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Up to 75 hours4 of autonomous operation -
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Place for a 7 Ah backup battery
Adjustable signalling
Get only events you need. You can configure each vhfBridge output in the Ajax app: set an event or disable it.
Uncompromised security of communication
vhfBridge communicates with a hub via an encrypted Jeweller radio protocol. It guarantees continuous interaction of all security system devices. The radio protocol uses frames to synchronize device communication sessions, authentication to prevent forgery, and encryption to protect against data theft.
Connection with a hub at a distance of up
to 1,800 meters
to 1,800 meters
Alarm transmission within
0.15 seconds
0.15 seconds
Hub ping interval
from 12 seconds
from 12 seconds
Hassle-free installation
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.
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Adding to the system by scanning a QR-code -
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Mounting on a wall -
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Connecting of a VHF transmitter -
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Setting up with an app
Technical specifications
1
The distance depends on the transmitter, the terrain, and the weather. The maximum range varies in each particular case.
2
A backup battery is not included in the set.
3
vhfBridge can be sold without a casing.
4
When using a 7 Ah battery.