Between any two devices
If you add the length of all the cables in a segment, then you my have no more than 1000 m.
The 700 m is the maximal distance between any two devices.
If you'd make an installation without branches, the maximal length can thus only be 700 m (in one Line).
1#-----2#----3#-----4#
Between 1# and 4#, there shall only be 700 m!
(Each "-" is 50 m; the dots have no meaning but only serve for outlining the "-"; the foum otherwise cuts spaces).
.......--------2#
1#----+
.......--------3#
This is not OK. Between 2# and 3#, there is 800 m.
...........------2#
1#--------+
...........------3#
This would be OK.
1# to 3# = 700 m
1# to 2# = 700 m
2# to 3# = 600 m
Total cable length = 1000 m.
Mr. Steven De Bruyne
System Department - KNX Association
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