JUMO mTRON B 70.4015.4, Руководство по установке

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4 Electrical connection
14
4.5 Network connection
LON The JUMO mTRON automation system incorporates the fieldbus network
concept called LON (
L
ocal
O
perating
N
etwork).
A screened twisted pair is used as a transmission line. The connection can be
made as line, ring, star or mixed structure (free topology).
Line structure
The physical ends are provided at both ends with a termination resistance of
100
Ω
, which is activated by a switch on the module.
v
Section 4.6 “LON termination resistance”
Ring structure
In this wiring arrangement, the network remains functional even when there is
a break. The termination resistance of any one module in the ring must be set
to 50
Ω.
v
Section 4.6 “LON termination resistance”