Hirschmann RS20

Ring/Network coupling
Redundanz L2P
Release 5.0 04/09
5.2 Preparing a Ring/Network coupling
73
5.2.4 Two-Switch coupling with control line
Figure 36: Example of Two-Switch coupling with control line
1: Backbone
2: Ring
3: Main line
4: Redundant line
5: Control line
IO
STAND-BY
STAND-BY
IO
RM
RM
34
5
1
2