Siemens SCALANCE X-200 Configuration Manual page 15

Ring topology
Figure 1-4
Figure 1-5
SCALANCE X-200
Configuration Manual, 03/2015, C79000-G8976-C285-06
Optical ring, example with X-200 or X-400 as redundancy manager
Electrical ring, example with X208 or X-400 as redundancy manager
Network topologies and media redundancy
1.1 Network topologies
15