Specifications
Technical data DBS721
8
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Building Technologies
A6V10320094_m_en_--
Fire Safety
2017-10-31
8 Specifications
8.1 Technical data DBS721
You will find information on approvals, CE marking, and the relevant EU directives
for this device (these devices) in the following document(s); see 'Applicable
documents' chapter:
Document A6V10277374
Detector line
Operating voltage
DC 12…33 V
Operating current:
Standby
Max. 250 µA
Sound activated
3.5 mA (116 mW)
Quiescent current connection factor
1
Address connection factor
1
Separator connector factor
1
Protocol
C-NET
System compatibility
See 'List of compatibility'
Connection factor: Sound activated
15
Line separator
Line voltage:
Nominal
DC 32 V (= V
nom
)
Minimum
DC 12 V (= V
min
)
Maximum
DC 33 V (= V
max
)
Voltage at which the line separator opens:
Minimum
DC 7.5 V (= V
SO min
)
Maximum
DC 10.5 V (= V
SO max
)
Permanent current when switches are closed
Max. 1.5 A (= I
C max
)
Switching current (e.g., in the event of a short-
circuit)
Max. 2 A (= I
S max
)
Leakage current when switches are open
Max. 1 mA (= I
L max
)
Serial impedance when switches are closed:
Point detector not used
0.4 (= Z
C max
)
Point detector used
2x 0.4
The line separator is closed via an actuation signal from the control panel.
Required line voltage: DC 12…33 V (normal range)
Function
Number of selectable tones
11
Number of programmable alarm levels
2
Number of programmable sound levels:
1 alarm sound level according to EN 54-3
2 test sound levels
3
Adjustable maximum sound levels (typical values
in dBA/m at DC 32 V with blanking plate BP720)
For details, see 'Annex technical data'
82…89 dBA
