
Electrical installation
Wiring
4
EDKMF2133 DE/EN/FR 6.1
49
H2_Verdrahtung−TN anzahl
Number of devices connected to the bus
M
123
SS S S S
RR
2133PFB004
Segment Master (M) Slave (S) Repeater (R)
1 1
2
31
30
−
−
2 − 30 1
3 − 30 1
Tip!
Repeaters do not have a station address but in the calculation of the
maximum number of stations they reduce the number of stations by 1 on each
side of the segment.
Repeaters can be used to build up line and tree topologies. In this case, the
maximum total bus system expansion depends on
ƒ the baud rate used
ƒ the number of repeaters used
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