Ajax EN54 I/O Module (2X2) Black – Smart and Secure Wireless Integration

Ajax EN54 I/O Module (2X2) Black – Smart and Secure Wireless Integration

 

124591.280.BL1 # 118591 | Ajax EN54 I/O (2X2) Jeweller , a black module, is a wireless device that allows you to connect third-party equipment to an Ajax fire alarm system, complying with EN 54-18 and EN 54-25 standards. Equipped with two inputs and two outputs, it allows integration with gates, emergency lights, electric locks and other security systems. Jeweller radio communication guarantees a range of up to 1,700 m, with intelligent power management and rapid alerts in case of danger. Easy to install and manage via app, it operates up to 5 years with integrated batteries.

Technical Data Sheet

Reference: 124591.280.BL1

Brand: Ajax Systems

EAN: 4823114070617

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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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124591.280.BL1 | WIRELESS MODULE WITH TWO INPUTS AND TWO OUTPUTS


Ajax

The Ajax EN54 I/O (2X2) Jeweller wireless module, 124591.280.BL1 , in black, enables quick and secure integration of third-party devices into an Ajax fire alarm system, such as emergency lighting, electric locks, or ventilation systems. Equipped with two inputs and two outputs, it supports the Jeweller protocol for stable communication up to 1,700 m, operates on internal batteries for 5 years, and can be configured in minutes via the Ajax app.

Main specifications:

- 2 inputs and 2 outputs configurable via app

- Jeweler radio communication up to 1,700 m

- Compatibility with NC, NO, EOL, 2EOL and 3EOL devices

- Battery life up to 5 years, no external power supply required

- Complies with EN 54-18 and EN 54-25

- Easy installation with QR scanning and high or low profile cables

Further details

✅ Communication :
The module uses the Jeweller radio protocol to transmit data reliably and securely up to 1,700 m in open terrain . Communication with the control panel (CIE) is two-way, supports connection to Ajax repeaters (optional), and adopts intelligent signal management: automatic power adjustment , frequency switching, and immediate detection of connection loss.
✅ Entrances :
The module is equipped with 2 independent inputs , compatible with NC, NO, EOL, 2EOL and 3EOL contacts , for connecting external devices such as detectors, buttons, sensors or emergency controls. Each input allows the selection of custom events and can be configured in minutes via the Ajax app .
✅ Exits :
The 2 galvanically isolated relay outputs can be configured to control third-party devices (e.g., emergency lights, sirens, electric locks, HVAC systems ). Output activation can be automatic in the event of an alarm or managed manually via the Ajax app.
✅ Anti-sabotage protection :
The module is protected by a tamper-resistant case and a dedicated enclosure to protect the board during installation. Cables can be routed top or bottom for a clean installation, while the internal battery offers up to 5 years of battery life , with easy replacement and in-app notifications if the battery is low .
✅ EN54 Standard:
The device fully complies with the EN 54-18 (input/output modules) and EN 54-25 (radio communication) standards . This makes it certified for use in professional fire protection systems in civil, industrial, and public settings, guaranteeing full regulatory reliability .

Technical data sheet

124591.280.BL1
Capacity
Communication
Jeweler communication technology Proprietary wireless communication technology to transmit commands, alarms, and events.
Key features:
  • Two-way communication
  • Advanced sabotage protection
  • Block encryption featuring a dynamic key
  • Instant notifications
  • Remote control and configuration in Ajax apps
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 sales region.
Maximum effective radiated power (ERP) up to 20 mW
Automatic power control to reduce power consumption and radio interference.
Radio signal modulation GFSK
Radio communication range up to 1,700 m
up to 5,550 ft
Between the device and control and indicating equipment (CIE) or a range extender in an open space.
Encrypted communication All stored and transmitted data are protected by block encryption featuring a dynamic key.
Frequency hopping To prevent radio interference and jamming.
Inputs
Number of input lines for third-party devices 2
Input terminals Input 1, Input 2 — inputs for connecting third-party wired devices
Shield — common input for connecting shields of the cables that connect third-party wired devices
Type of connection NO, NC, EOL, 2EOL, 3EOL
EOL resistance 0.47 kΩ, 1.2 kΩ, 2.7 kΩ, and 6.2 kΩ resistors
Four resistors for each input are included in the complete set.
Length of wired connection to third-party devices up to 100 m
up to 325 ft
When 2×1.5 mm2 (16 AWG) fire-resistant cable is used.
Cross-sectional area of the cable 0.4–2.5 mm² (21–13 AWG)
Outputs
Number of input lines for third-party devices 2
Output terminals Output 1, Output 2 — relay outputs for connecting third-party wired devices.
AC operating range 10—250 V~, 5 mA to 10 A (resistive load)
DC operating range 10—30 V⎓, 5 mA to 5 A (resistive load)
Cross-sectional area of the cable 0.4–2.5 mm² (21–13 AWG)
Operating mode pulse
bistable
Pulse duration from 1 s to 1 h 30 min
Pulse duration can be configured for pulse mode in Ajax apps separately for each relay.
Key features
Event types An Ajax app specifies event types for wired device inputs. The selected type determines the text of alarm notifications and events of the connected device, as well as event codes transmitted to the CMS. A PRO or a user with admin rights can configure the event type in an Ajax app.
Automation scenarios The scenarios can be configured in Ajax apps separately for each relay.
Fail-safe mode If the module is offline, discharged, or has hardware problems, it activates the connected devices automatically.
Installation recommendations The device is designed for indoor use only.
Sabotage protection
Tamper button Notifications of attempts to detach the module from the surface or open the front lid.
Protection against spoofing device authentication
Connection loss detection after 36 s
Detection time depends on Jeweler settings
Input monitoring detection of wired connection loss, short circuits, and malfunctions when the EOL, 2EOL, or 3EOL connection is used
Depends on the connection type.
Power supply
Battery 2 × CR123A
Pre-installed
Calculated battery life up to 5 years
Enclosure
Dimensions 116 × 180 × 62 mm
4.57" × 7.09" × 2.44"
Weight 547 g
19.3 oz
Operating temperature range from 0 °C to +50 °C
from 32 °F to 122 °F
Operating humidity up to 80%
Protection class IP21C
Flammability rating UL 94 V-0
Color Black
Complete set EN54 I/O Module (2X2) Jeweller
2 × CR123A battery (pre-installed)
Installation kit
2 × set of 4 EOL resistors
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

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