Siemens Industrial Ethernet Switches SCALANCE X-200 - Manual (Page 18)

Network topologies / media redundancy
2.1 Network topologies
SCALANCE X-200
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Operating Instructions, 12/2011, A5E00349864-19
Star topology
Figure 2-2 Electrical star topology. Example with SCALANCE X208
Figure 2-3 Star topology with X310 and X208