Manual Datafox ZK-MasterIV
q
2
1
,
438
A
65
m
56
m
Ω
mm
2
4
V
2
1
,
438
A
65
m
V
mm
2
56
m
4
V
A
q
0
,
83
mm
2
If we take as a basis that the bus has a maximum length of 200 m, the result of the calculation will be a
cable cross-section of
2
,
6
mm
2
. That means we would need an additional power supply unit.
3.6.2.4.2 Star topology
In this example the maximum cable length for each cable is calculated separately for a given cable cross-
section. We take a cable cross-section of
0
,
75
mm
2
as a basis. The length of each cable has to be calculated
separately.
Figure 54: Star topology
Version: 04.01.07.00
Page
75
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