Lenz Digital Plus LK200 Mode D'emploi page 20

20 Information LK200
1 Problem: Reverse loop
Every other owner of a two-wire system can tell you a thing or two about it:
If you assemble a reverse loop in a two-wire system, a short circuit will occur where the reverse-loop
track rejoins the main track, because the track that was previously the right track now abuts the left
track.
Short circuit
when crossed
Figure 1