6 CABLING
(2) Branch length
The branch length means a distance between a point at which a drop line branches out
from the main line to a point at which the end of a drop line. The maximum branch
length is 6 meters. The maximum length of a power cable from the main line is 3
meters.
Main line
Main line
Branch
length A
Main line
Branch length
(6 m max.)
Node
2 m
4m
Branch
length B
4 m
Node
A
Node
4 m
B
Branch length C
Node
C
Figure 6-17 Example of Branch Length
3 m max.
24
VDC
Main line
Branch length D
3 m
Node
D
Branch length A: 4 m
Branch length B: 4 m
Branch length C: 6 m (2 m + 4 m)
Branch length D: 5 m (2 m + 3 m)
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