Functions and displays
51 | EN
Volume of the signal tones
The volume of the signal tones can be configured separately for each group.
User menu -> Configuration -> Volume Settings
Operator Sounds 0-10
Info Sounds 0-10
Alarm Sounds 0-10
The required volume according to EN50131-4 (Alarm systems - Intrusion and hold-up
systems - Part 4: Warning devices) for security grade 2 of > 80 dB (A) @ 1m is given
when setting the Alarm Sounds = 10.
Switch-off time of the signal tones
In battery operation mode, the sounder is automatically muted after 3 minutes.
Error and tamper monitoring
The sounder continually monitors error and tamper states and reports all events to the alarm
panel. The following is monitored:
• Tamper contact:
The sounder’s tamper contact is continually monitored.
• Supply voltage and battery voltage:
The sounder monitors the supply voltage and battery voltage under load conditions and
reports all faults to the alarm panel.
• Supervision
The indoor sounder continually sends supervision messages to the alarm panel
• Signal jamming:
The indoor sounder monitors attempts to jam the wireless signal. If jamming is detected, the
message "Signal jamming" is sent to the alarm panel.
The sounder was designed so that changes are detected if they last at least 400 ms
(EN50131-1 Chapter 8.9.1 and EN50131-3 Chapter 8.9 and Annex B).
Breaking and entering, intrusion and tampering signals must last at least 400 ms.
