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Siemens
Installation guide RXB, RXL
CM110381en_01
Building Technologies
Konnex bus technology
28 Feb 2009
Distances and line lengths (examples)
100 m
N1
N4
31
27
Z
03e
n
N2
200 m
100 m
100 m
400 m
Distance between
bus devices max. 700 m.
Not allowed:
N1 to N4 = 900 m
N2 to N4 = 800 m
N3
100 m
250 m
150 m
Distance between bus device
and bus supply max. 350 m.
Not allowed: N4 = 550 m
PSU
N1…N4 Bus
devices
Bus device N4 – by adhering to the maximum distance of 700 m between bus
devices – cannot be integrated in the bus if bus device N3 is integrated with a loop
(instead of subline).
If the maximum distance between the centralized bus supply PSU and the bus
device (without bus supply) is 350 meters, the bus supply must be placed at 150 m
/ 250 m on the 400 meter line.
100 m
N1
N4
31
27
Z
04e
n
N2
200 m
100 m
100 m
400 m
N3
200 m
100 m
N5
Total lenght
max. 1000 m,
exceeded by
N5
N1…N5 Bus
devices
The permissible total length of 1,000 meter in the line is exceeded, if device N5 is
integrated in the bus at the given bus wiring.
Example 1
Distances
Example 2
Total length