MAKE IT YOURS
Superior HomeSiren Fibra.
Wired siren with an LED connector

Standards and certifications
Superior HomeSiren Fibra · HS.Y.F. Manufacturer-listed marks; regional and installation conditions apply.
See Ajax for the certified model and installation conditions.
A clear warning. Powered by the wired system.
Superior HomeSiren Fibra brings audible alarms and LED feedback to indoor spaces. A supervised four-core line supplies power and carries system events. Adjustable sound, entry and exit beeps, and an optional external indicator help people understand what their security system is doing.
Key features. At a glance.
Adjustable sound volume
for alarms and notifications

Adjustable alarm duration1

Built-in LED indicator
Possibility to connect an external LED indicator



Chime feature2
Holding screw
for reliable fastening and protection against quick dismantling


After-alarm indication




Up to 2,000 m3
of wired communication with an Ajax hub or a module that extends the Fibra line

Power adjustment
Two colors


Indication of security mode change and delay when entering or leaving
Informative push notifications
Remote control and configuration

Power consumption of
up to 1.8 W
Tamper alarm


Up to 10 sirens per a single hub4

Pairing with a hub via automatic line scanning or QR code
- 1From 3 seconds to 3 minutes.
- 2For the Chime feature to work, the system requires an opening detector. Learn more about Chime.
- 3When the U/UTP cat.5 4×2×0.51 mm (24 AWG) cable is used. Other cable types may have different values. Please use the Fibra power supply calculator to check the wired system project before installing the device. Cable type, topology, connected load and voltage drop determine the usable line length.
- 4This means that up to 10 sirens, including keypads with built-in buzzers, can be added to the system.
Ajax product information ↗ · Superior HomeSiren Fibra specifications ↗
Protection in real places.









Superior HomeSiren Fibra
Every detail has a purpose.
Explore the function, installation and system requirements of Superior HomeSiren Fibra.
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Know what the system is telling you.

Draw attention to an alarm
Choose which system devices should activate the siren and configure its response to tamper and panic events. Sound and light can alert people nearby; notifications and any monitoring response depend on the connected system and service settings.
A gentle signal for everyday arrivals.

Chime while the system is disarmed
A short notification can announce an opening detector being triggered. Configure the siren and the relevant device, then test the event and volume. This signal informs people of an arrival without treating it as an intrusion alarm.
Set the alarm and its visual feedback.

Set the sound for the site
Choose an alarm volume within 81–105 dB at 1 m and a duration from 3 seconds to 3 minutes. Notification beeps can be adjusted separately. Test audibility in the actual space rather than relying only on the maximum figure.
A supervised connection on the Fibra line.
Up to 2,000 m on a four-core cable
Fibra carries alarms, commands and status over a supervised wired connection. The maximum line length assumes U/UTP cat.5 cable. Cable type, topology, connected load and voltage drop determine the usable installation.
An accredited Ajax partner should calculate the line load and check the exact siren’s operating and start-up voltage. A ring connection has different length limits; a backup battery does not restore communication across a severed line.
Power directly from the Fibra line.
No internal battery
The siren operates from 7–26 V DC, with a current specification of up to 1,811 mW and 75.5 mA at nominal 24 V. Start-up requires 16–18.5 V. Include its alarm load in the line calculation and verify voltage at the installed device.
Protection that also watches itself.
Monitor the enclosure and mounting
Two tampers report unlocking SmartBracket and detachment from the mounting surface. Fit the required fasteners and test the event at the end of installation.
Supervise the connection
Regular exchanges allow the hub to detect a missing device and report the affected siren and room. Connection-loss timing depends on the configured polling interval and missed-packet threshold.
Install within the specified conditions.
Indoor placement
Use indoors from −10 to +40 °C and up to 75% humidity. The enclosure is rated IP50 and IK06.
Place it well. Test the complete response.

Check audibility and visibility
Choose a position where the alarm can be heard and the indication can be seen. Use the exact mounting instructions and permanent fixings, secure SmartBracket, and test removal protection. Avoid a location where the sound could trigger a nearby glass-break detector.
Find the right siren.
Compare indoor and outdoor sirens across Baseline, Superior and Fibra. See how sound, light, power and everyday notifications fit the place you want to protect.
Compare sirens →Every detail, in one place.
Communication
- Fibra communication technology
- Two-way wired communication for alarms, commands and device status, with encrypted exchanges, supervision and remote configuration.
- Line connection
- 4-core cable
- Fibra line length
- up to 2,000 m When using the U/UTP cat.5 twisted pair.
Key features
- Alarm type
- acoustic and LED Buzzer and LED.
- Type of warning device
- internal
- Alarm volume
- from 81 to 105 dB at a distance of 1 m 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.
- Chime
- The siren makes a special sound to notify that the opening detectors are triggered when the system is disarmed.
- Events indication
- Alerts. Entry/exit delays. Security mode. Security mode changing. After-alarm indication.
Sabotage protection
- Tamper alarm
- Alerts of attempts to detach the siren from the surface or remove the mounting panel. 2 tampers Notifications on attempts to detach the siren from the surface or unlock the SmartBracket lock and remove the siren from the mounting panel. Lock for SmartBracket To secure the siren on SmartBracket.
- Protection against forgery
- device authentication
Power supply
- Siren’s operating voltage range
- 7−26 V⎓, up to 1811 mW Superior HomeSiren Fibra doesn't have any battery, the device has only a remote power source from the control panel. Siren’s start voltage range 16−18.5 V⎓ The voltage range needed to turn on the siren, when the voltage on the Fibra line rises.
- Siren’s nominal operating voltage
- 24 V⎓
- Maximum siren’s current consumption at nominal voltage
- 75.5 mA
- Quiescent siren’s current consumption at nominal voltage
- 66 µA
- Peak siren’s current consumption at nominal voltage
- 77 mA When the siren sounds at the Very Loud volume level.
Enclosure
- Dimensions
- 91 × 91 × 33 mm
- Weight of the black device
- 95 g
- Weight of the white device
- 108 g
- Operating temperature range
- from −10 °C to +40 °C
- Operating humidity
- up to 75%
- Protection class
- IP50, IK06
What’s in the box
- Superior HomeSiren Fibra
- SmartBracket mounting panel
- Installation kit
- Quick start guide
For your installation
- Selected as part of an installer-reviewed security or automation project.
- Fibra needs a supported hybrid control panel, checked cable type and topology, termination and a complete power budget. Existing alarm cabling is not automatically suitable.
- The siren is designed for indoor use only.
- Recommended installation height is 2.5 m and higher.
