Specifications
91
Building Technologies 007004_k_en_--
Fire Safety & Security Products 16.04.2009
8.3 Technical data FDT221, FDT241
Detector line Operating voltage (modulated) 12 … 33 V DC
Operating current (quiescent) Typ. 165 μA
Maximum current connection factor 1
Quiescent current connection factor 1
Address connection factor 1
Separator connection factor 1
Protocol FDnet
Compatibility See document 008331 'List of
compatibility'
Line separator Line voltage:
z Nominal 32 V DC (= V
nom
)
z Minimum 12 V DC (= V
min
)
z Maximum 33 V DC (= V
max
)
Voltage at which the separator opens:
z Minimum 7.5 V DC (= V
SO min
)
z Maximum 10.5 V DC (= 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
)
External alarm indicators Number of external alarm indicators that
can be connected
2
Voltage 10 … 17 V DC
Power 9 … 15 mA
Length of line
z Max. 30 m with unshielded
cables, or when the shielding is
connected to the detector's
positive pole
z Max. 5 m, if the shielding is
connected to earth
Flashing interval times:
z Bright 15 ms
z Dark 1 s
Device characteristics Response sensitivity Depending on parameter set
Detector diagnosis With detector exchanger and tester
FDUD29x
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