MultiTransmitter Fibra

Module for connecting third-party wired alarm to Ajax


Compatible hub models Hub Hybrid (2G) Hub Hybrid (4G)

Compatible range extenders Range extenders with Fibra devices support will be soon added to Ajax devices product line.


Fibra communication technology

Proprietary wired communication technology. Fibra combines the reliability of wires with the freedom of radio connection. It features:

  • Two-way communication.
  • Advanced anti-sabotage.
  • Instant notifications.
  • Remote configuration via the app.

Learn more

Bus connection 4-core cable

Bus line length up to 2,000 meters When using the U/UTP cat.5 twisted pair.

Wired devices connection

Number of zones 18 wired zones Multiple devices can be connected to one zone. The number of connected devices depends on their power consumption.

Type of connection NC, NO, EOL, 2EOL, 3EOL With EOL resistance from 1 kΩ to 30 kΩ with 100 Ω increment.

Cable length up to 400 m When using a copper signal cable with a 0.22 mm² cross-sectional area of ​​the conductor.

Operation mode pulse, bistable

Event type 7 types of alarms for each wired zone

  • tamper alarm
  • intrusion
  • fire alarm
  • medical help
  • panic button
  • gas concentration alarm
  • malfunction

Adjusted by PRO or user with admin rights in the Ajax app.


The device is powered from the 110–240 V~ mains and designed for indoor use only.

Anti-sabotage protection

Tampering alarm Two tampers to detect the lid opening and alert about detachment from the wall. Learn more

Protection against forgery Device authentication

Communication loss detection within 3 seconds Between hub and MultiTransmitter Fibra.

Instant detection of wired connection loss, short circuits and malfunctions when using 2EOL/3EOL connection Depends on the connection type.

Power supply

MultiTransmitter Fibra power supply 110–240 V~

MultiTransmitter Fibra backup power supply 12 V⎓, up to 7 Ah capacity with a full charge cycle of up to 30 hours

Power supply of connected wired devices 10.5–15 V⎓, up to 1 A (total maximum current consumption) Two power supply lines from MultiTransmitter Fibra.

Power supply of connected fire detectors 10.5–15 V⎓, up to 0.4 A One power supply line from MultiTransmitter Fibra.


Dimensions 192 × 238 × 100 mm

Weight TBC

Operating temperature range from −10°C to +40°C

Operating humidity up to 75%

Protection class IP40



Complete set

MultiTransmitter Fibra Power cable Screw terminal block Adapter (only for INCERT compliance) 12 V battery connection cable Casing Installation kit Quick Start Guide

Additional information

Compliance with standards Learn more

Warranty 24 months Learn more

User manual Learn more

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