Siemens SCALANCE X101-1 Operating Instructions Manual page 12

Network topologies
2.1 Possible network topologies
Star topology
The following figure shows an optical star structure with the IE switches X-400 and X106-1.
A SCALANCE W access point and SIMATIC NET 200 systems are electrically connected via
the media converters SCALANCE X101-1 or SCALANCE X101-1LD.
Figure 2-2 Example of an optical star topology with SCALANCE X101-1 or SCALANCE X101-1LD
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SCALANCE X-100 media converter
Operating Instructions, 04/2016, C79000-G8976-C346-02