Specifications
Technical data for the radio gateway FDCW221
8
74 | 82
Building Technologies
009865_m_en_--
Fire Safety
2015-11-06
8 Specifications
8.1 Technical data for the radio gateway FDCW221
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 010087
Detector line
Operating voltage
DC 12…33 V
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 devices)
Address connection factor
2 + n*1 (n = number of radio detectors)
Separator connector factor
1
Protocol
FDnet
Compatibility
See 'List of compatibility'
Design
●
Inherently short-circuit-proof
●
Protected against polarity reversal
●
Protected against overvoltage
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 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. 0.5 A (= I
C max
)
Switching current (e.g., in the event of a 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
)
Radio
Number of radio gateways with radio cell
overlapping
Max. 16
Number of radio detectors per radio gateway
Max. 30
Sending/receiving aerials
2 (aerial diversity)
Radio transmission:
●
Frequency range
868…870 MHz, SRD band (Short Range Device)
●
Channel grid
25 kHz
●
Number of channels
80
●
Transmitting power
<5 mW ERP
●
Range:
– In building
Max. 40 m
– Outdoors
Max. 200 m
●
Damping
Max. 90 dB
