Specifications
48
Building Technologies
009865_b_en_--.doc
Fire Safety & Security Systems
11.2007
10 Specifications
10.1 Technical
data
Operating voltage
12 … 33 VDC
Operating current
typ. 1 mA
Maximum current connection factor 5 + n*1 (n = number of radio detectors)
Quiescent current connection factor 4 + n*1 (n = number of radio detectors)
Address connection factor
2 + n*1 (n = number of radio detectors)
Separator connector factor
1
Log FDnet
Design
–
short-circuit-proof
–
reverse battery-proof
–
voltage surge protected
Detector line
Compatibility
See doc. no. 008331 'List of compatibility'
Line separator
Line voltage:
–
nominal
–
minimum
–
maximum
32 VDC (= V
nom
)
12 VDC (= V
min
)
33 VDC (= V
max
)
Voltage at which the separator
opens:
–
minimum
–
maximum
7.5 VDC (= V
SO min
)
10.5 VDC (= V
SO max
)
Permanent current when switches
are closed
max. 0.5 A (= I
C max
)
Switching current (e.g. in case of
short circuit)
max. 1 A (= I
S max
)
Leakage current when switches are
open
max. 1 mA (= I
L max
)
Serial impedance when switches
are closed
max. 0.5
Ω
(= Z
C max
)
Number of radio gateways with
overlapping radio cells
max. 16
Number of radio detectors per radio
gateway
max. 30
Emission/reception antennas
2 (antenna diversity)
Radio transmission:
–
Frequency range
868 … 870 MHz, SRD band (Short Range
Device)
–
Channel grid
25 kHz
–
Number of channels
80
–
Transmission performance
<5 mW ERP
–
Range:
– in buildings
max. 40 m
– outdoors
max. 200 m
Radio
–
Attenuation
max. 90 dB
