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Principle loop resistance
None of the devices (AS, IS or FE)
should be further than 8 Ohm away
from the power supply and control unit
(VS).
8 Ohm:
around 65 m distance AS-VS by 0.6
mm diameter
around 115 m distance AS-VS by 0.8
mm diameter
Max. number of IVX9001-0140 in 6-wire operation
small and me-
dium-sized
systems
VBVS05
AS front-door station
IS indoor station
Note: The max. number of front-door stations that can be connected is limited. For
detailed description see product information!
24
max. num-
ber of
IVX9001-
0140
12
VS power supply and control unit
TÖ door opener
Measure loop resistance
Switch off the 230 V / 50 Hz of
the VS.
Install a-b short-circuit at the VS.
Other devices are not disturbing
the measurement, they can stay
connected.
AS front-door station,
VS power supply and control unit,
IS indoor station,
FE extended function
a,b short-circuit
here
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