Siemens SCALANCE XR-300WG Series Operating Instructions Manual page 30

Installation
4.1 Safety notices for installation
Further notes
Use only approved components
If you use components and accessories that are not approved for SIMATIC NET devices or
their target systems, this may violate the requirements and regulations for safety and
electromagnetic compatibility.
Only use components approved for the SIMATIC NET devices.
NOTICE
Warming and premature aging of the IE switch due to direct sunlight
Direct sunlight can heat up the device and can lead to premature aging of the IE switch and
its cabling.
Provide suitable shade to protect the IE switch against direct sunlight.
Note
During installation and operation, keep to the installation guidelines and safety notices
described in this document and in the system manuals "Industrial Ethernet / PROFINET
Industrial Ethernet" and "Industrial Ethernet / PROFINET passive network components".
You will find information on the system manuals in the section "AUTOHOTSPOT", in "Further
documentation".
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CAUTION
Operating Instructions, 05/2017, C79000-G8976-C454-01
SCALANCE XR-300WG