Siemens Industrial Ethernet Switches SCALANCE X-200 - Manual (Page 20)

Network topologies / media redundancy
2.1 Network topologies
SCALANCE X-200
20
Operating Instructions, 12/2011, A5E00349864-19
S7-400
Switch
SCALANCE
X-400
S7-300
PC
Switch
SCALANCE
X208
PC
PC
S7-400
S7-400
S7-300
PC
S7-400
S7-400
S7-300
Operator Station PC
S7-400
G_IK10_XX_10101
Twisted Pair Twisted Pair
Figure 2-5 Electrical ring topology, example with SCALANCE X208 and SCALANCE X-400 as
redundancy manager
Figure 2-6 Ring topology with electrical and optical ring links, example with SCALANCE X206-1,
SCALANCE X208, and SCALANCE X204-2 as redundancy manager