Planning
4
Limitations
22
Building Technologies A6V10320090_c_en_--
Fire Safety 02.11.2011
4.4 Limitations
In the case of the FDSB229 the optical signals and alarm sounds cannot be
synchronized.
4.5 Configuration
The following chapters contain the specifications of the different acoustic and
optical signals.
The optical signals are only available with the sounder beacon interbase FDSB229.
4.5.1 Acoustic signals
Adjustable max. sound
levels with cover plate
(typ. values in
[dBA/1m]
1
)
No. Tone Frequency pattern
Sweep from → to
Pulse pattern
at 12 V at 32 V
Norm
1 Continuous 970 Hz 80 83 'evacuate'
BS 5839 Part 1 1988
2 Intermittent 950 Hz 79 82 'alert'
BS 5839 Part 1 1988
3 Sweep-down 1200 Hz → 500 Hz 80 82 DIN tone
DIN 33404 Part 3
4 Slow-whoop
Sweep-up,
linear
500 Hz → 1200 Hz
80 83 NEN 2575
(Netherlands)
5 Pulse tone 500 Hz 76 78 Swedish Standard
SS 03 17 11, No. 1
'Imminent Danger'
6 Intermittent 500 Hz 75 77 Swedish Standard
SS 03 17 11, No. 6
'Local Warning'
7 Continuous 500 Hz 77 79 Swedish Standard
SS 03 17 11, No. 4
'All clear'
8 Alternating 560 Hz
440 Hz
77 79 'French fire sound'
NF S 32-001-1975
9 Intermittent 420 Hz 76 78 Australia 'Alert'
AS 2220 -1978
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