Siemens Desigo RXB Technical Manual page 472

Example 1
Distances
Example 2
Total length
18 / 22
Siemens
Building Technologies
Distances and line lengths (examples)
N1
200 m
150 m
100 m
Distance between bus device
and bus supply max. 350 m.
Not allowed: N4 = 550 m
N2
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.
N1
200 m
100 m
N2
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.
Installation guide RXB, RXL
Konnex bus technology
400 m
PSU
250 m
400 m
Distance between
bus devices max. 700 m.
Not allowed:
N1 to N4 = 900 m
N2 to N4 = 800 m
100 m
100 m 100 m
N3
N5
Total lenght
max. 1000 m,
exceeded by
N5
200 m
100 m
100 m
100 m
N3
CM110381en_01
28 Feb 2009
N4
N4