
Planning Instruction 66571758GB0 Fire Detection 31
8.2 Cables of conventional detection circuits CLC, alarm device lines, input/output lines
FX_
8
10
11
9
No Cable connection
Conductors x
area
Max. length Comments
8
Conventional
detection circuits of
a CLC board
2 x 0.5 mm
2
+
shield
2 x 1.0 mm
2
+
shield
1200 m
(100 )
2400 m
(100 )
The cable resistance of the loop is max. 50 ,
if an Exi barrier is connected to the loop,
otherwise max 100 .
The max. allowed capacitance of the cable is
0.5 µF.
9
FX alarm device
lines
- fire bell, siren line
- fault buzzer line
2 x 0.5 mm
2
or
2 x 1.0 mm
2
or
2 x 2.5 mm
2
To be
calculated
separately
Max. allowed voltage drop defines cable to
be used.
10
FX clean contact
input lines
2 x 0.5 mm
2
2000 m
11
FX clean contact
output lines
2 x 0.5 mm
2
or
2 x 1.0 mm
2
To be
calculated
separately
The equipment receiving the contact signal
may have restrictions on cable properties.
Load controlled by the relay output may
restrict allowed resistance and length per
cross section.
Schneider Electric Pelco Finland Oy
Kalkkipellontie 6, 02650 Espoo, Finland Telephone: +358 10 446 511 Fax: +358 10 446 5103 www.pelco.com/nordic
Document Number 66571758GB0 49 2011
© 2009 Schneider Electric. All rights reserved.
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