Ajax vhfBridge Jeweller Black VHF Module for Ajax Security Systems

Ajax vhfBridge Jeweller Black VHF Module for Ajax Security Systems

 
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38187.92.BL1 # 38187 | Ajax vhfBridge Jeweller black is a professional module designed to connect Ajax security systems to third-party VHF transmitters, ensuring reliable integration with traditional monitoring stations. It offers transmission of all Ajax events to VHF , two-way and encrypted Jeweller radio communication , 8 configurable positive or negative outputs , dedicated power supply for VHF transmitters and anti-sabotage protection with anti-opening and anti-removal tamper . The device ensures remote management via app , indoor installation and battery life of up to 75 hours with backup battery , making it ideal for advanced professional installations. Ajax

Technical Data Sheet

Reference: 38187.92.BL1

Brand: Ajax Systems

EAN: 4823114015465

Disponibilità: 9

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Born in 2011, Ajax System produces alarm and fire systems with JEWELLER radio protocol, a wireless technolog that allows to connect with a few taps the detectors in the mobile app. The Ajax System security system is easy to install in your apartment, home or office. By choosing Ajax System, you get integrated protection that is easy to manage, tamper-resistant and responds instantly to attacks. Ajax  System devices are easy to be installed: just 15 seconds to connect the control panel to the detectors. They can also support third-party surveillance cameras, making Ajax System a singular security center.

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Ajax SystemsAjax Systems

The alarm systems by Ajax System use a state-of-the-art wireless technology, thus making the devices very reliable and always connected. Ajax System detectors combine the best components with conceptual design.

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38187.92.BL1 | WIRELESS MODULE FOR CONNECTING AJAX SECURITY SYSTEMS TO THIRD-PARTY VHF TRANSMITTERS

Ajax

The Ajax vhfBridge Jeweller, 38187.92.BL1, black , is a professional module designed to integrate Ajax security systems with third-party VHF transmitters, enabling reliable event transmission to traditional monitoring stations. Thanks to secure Jeweller radio communication and comprehensive app management, it is an ideal solution for professional installations requiring compatibility, remote control, and operational continuity. Its robust construction and anti-sabotage features ensure high security standards, while the dedicated power supply for VHF transmitters ensures stability and consistent performance over time.

Main specifications:

- Transmission of all Ajax events to VHF transmitters

- Two-way, encrypted Jeweler communication up to 1,800 m

- 8 configurable positive or negative outputs for VHF integration

- Anti-sabotage protection with anti-opening and anti-removal tamper

- Dedicated power supply for VHF transmitters up to 2 A

- Remote management and configuration via Ajax app

Further details

✅ Jeweler Communication:
The Ajax vhfBridge module uses the encrypted two-way Jeweller radio protocol for secure transmission of events and alarms between the Ajax hub and the device, with a range of up to 1,800 meters in open fields, interference-free frequencies, and constant monitoring of the connection status, ensuring reliability and operational continuity even in complex professional environments.
✅ Main features :
Designed for integrating Ajax systems with third-party VHF transmitters, the vhfBridge enables the transmission of all security events via 8 configurable positive or negative outputs, manageable from the app, with pairing via QR code, remote configuration and compliance with the EN 50131 Grade 2 standard for professional installations.
✅ Anti-sabotage protection :
The device features a tamper-resistant body with a tamper protection against opening and removal, frequency hopping, and protection against signal falsification, ensuring immediate notification in the event of sabotage attempts and maintaining high levels of system security.
✅ Power supply :
Powered by 110–240 V AC mains, the vhfBridge supports a 12 V backup battery (not included) that guarantees up to 75 hours of autonomy in the event of a blackout, as well as providing dedicated power to VHF transmitters with 10.5 to 15.5 V DC output up to 2 A, ensuring stability and continuity of service.

Technical data sheet

38187.92.BL1
Communication
Jeweler communication technology Proprietary wireless communication technology to transmit commands, alarms, and events.
Key features:
  • Two-way communication.
  • Advanced anti-sabotage.
  • Block encryption featuring a dynamic key.
  • Instant notifications.
  • Remote configuration via the Ajax apps.
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
Depence on the sales reaction
Maximum effective radiated power (ERP) up to 25 mW
Automatic power control to reduce power consumption and radio interference.
Radio signal modulation GFSK
Radio signal range Up to 1,800 m
Between the detector and a hub (or radio signal range extender) in an open space.
Encrypted radio communication All the data stored and transmitted are protected by block encryption featuring a dynamic key.
Frequency hopping To prevent radio interference and jamming
Power supply
Main 100–240 V, 50/60 Hz
Backup 12 V⎓ battery, 4 or 7 Ah
A backup battery is not included. The battery should have a full charge cycle of up to 30 hours.
Calculated battery life up to 75 hours
VHF transmitter power 10.5–15.5 V⎓, up to 2 A
Key features
Control via smartphone Users can set up the module configurations and receive notifications in Ajax apps
Number of potential outputs 8
Compatibility with third-party VHF radio transmitters Any VHF transmitter with relay inputs can be connected to vhfBridge Jeweller
Adjustable pulse duration from 0.5 to 255 s
Operation modes
  • pulse
  • bistable
Output types
  • high potential (positive trip)
  • low potential (negative trip)
Recommendations The device is designed for indoor use only.
Sabotage protection
Protection against spoofing device authentication
Tamper alarm 2 tampers
Notifications on attempts to detach the device from the surface or remove it from the mounting panel
Communication loss detection after 36 s
Detection time depends on the Jeweler or Jeweller/Fibra settings
Enclosure
Color Black
Dimension 196 × 238 × 100 mm
Weight 840 g
Operating temperature range from −10 °C to +40 °C
from 14 °F to 104 °F
Temperature range from 32 °F (0 °C) to 120 °F (+49 °C) is certified according to UL/ULC standards
Operating humidity up to 75%
Humidity of up to 93% is certified according to UL/ULC standards
Protection class IP40
Complete set vhfBridge Jeweler
Power cable
12 V battery connection cable
Installation kit
Casing
Quick start guide
Warranty 24 months
All our products are in conformity with the in force CE normative (read here). To ask for a copy of the certification fill out this form