Tech specs
Fibra
HomeSiren
Wired indoor siren

Compatibility
Communication
Fibra communication technology
Proprietary wired communication technology.
Fibra combines the reliability of wires with the freedom of radio connection.
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 Ajax apps.
Line connection
4-core cable
Fibra line length
up to 6,500 ft
When using the U/UTP cat.5 twisted pair.
Encrypted communication
Key features
Alarm type
acoustic and LED
Buzzer and LED.
Alarm volume
from 81 to 105 dB at a distance of 3.3 ft
Adjusted by PRO or user with admin rights in the Ajax app.
Alarm duration
from 3 s to 3 min
Adjusted by a PRO or user with admin rights in the Ajax app.
Siren sound frequency
3.4 ± 0.5 kHz
Additional LED connection
3 V
An external LED works in parallel with the LED built into
the siren and fully replicates its indication.
the siren and fully replicates its indication.
Chime
The siren makes a special sound to notify that the opening detectors
are triggered when the system is disarmed.
are triggered when the system is disarmed.
Events indication
- Alerts.
- Entry/exit delays.
- Security mode.
- Security mode changing.
- After-alarm indication.

Recommendations
The siren is designed for indoor use only.
Recommended installation height is 8.2 ft and higher.
Recommended installation height is 8.2 ft and higher.
Anti-sabotage protection
Tampering alarm
Alerts of attempts to detach the siren from the surface or remove the mounting panel.
Protection against forgery
Device authentication
Power supply
Fibra line power supply
5−30 V⎓, up to 390 mW
The siren is powered by the control panel.
Enclosure
Dimensions
3.56″ × 3.56″ × 1.30″
Weight
2.96 oz
Operating temperature range
from 14 °F to 104 °F
Operating humidity
up to 75%
Protection class
IP50


Colours
Black

White

Complete set
HomeSiren Fibra
SmartBracket mounting panel
Installation kit
Quick Start Guide