Tech specs

StreetSiren DoubleDeck Fibra

Wired siren with a clip lock for a branded faceplate

StreetSiren DoubleDeck Fibra


Compatible hub models


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 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 frame.

Type of warning device

type Z

Type of acoustic output


Alarm volume

from 85 to 113 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 PRO or user with admin rights in the Ajax app.

Siren sound frequency

3.5 ± 0.5 kHz


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.


The siren is designed for indoor and outdoor use. Recommended installation height is 8.2 ft and higher.

Customized branded faceplate


Security service providers can print their logo and contact information on the siren’s front panel.


Brandplate is sold separately from street sirens. To place an order, reach out to your regional Ajax partner. You can also compose a faceplate design in the Brandplate constructor.

Sabotage protection

Tampering alarm

Sends notification if anyone tries to detach the siren from its surface or remove the device from the mounting panel.

Protection against forgery

device authentication

Power supply

Siren’s operating voltage range

7−27 V⎓
StreetSiren DoubleDeck Fibra is powered by the control panel.

Siren’s nominal operating voltage

24 V⎓

Maximum siren’s current consumption at nominal voltage

45 mA

Quiescent siren’s current consumption at nominal voltage

2 mA

Peak siren’s current consumption at nominal voltage

67 mA
When the siren sounds at the Very Loud volume level.

Average siren’s current consumption at nominal voltage

65 µA
When the siren sounds at the default volume level. Regardless of the arming mode.


LTO 2.4 V⎓ rechargeable battery

Capacity of the battery

1,500 mAh
The system notifies when the siren battery has 20% of its nominal capacity.



7.81″ × 7.81″ × 2.32″


18.20 oz

Operating temperature range

from −13°F to 140°F

Operating humidity

up to 95%

Protection class




Complete set

StreetSiren DoubleDeck Fibra
SmartBracket mounting panel
Installation kit
Quick start guide

Additional information

Compliance with standards


24 months

User manual