Siemens ESM - Manual (Page 42)

Network Topologies with OSM/ESM
Industrial Ethernet OSM/ESM
38 C79000-Z8976-C068-10
1 Fiber-optic cable (FOC)
OSM ITP 62
OSM TP 62
OSM ITP 53
OSM in
RM mode
1
1
1
1
OSM
Figure 17: Ring with OSM Version 2 as Redundancy Manager