Chapter 4: Cable Installation and Grounding
Surge Protection
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Page 4-8
Surge Protection
PTP 820S includes built-
in surge protection for its Ethernet and power interfaces. PTP 820S’s surge
protection implementation complies with surge immunity standard IEC 61000-4-5, level 4, provided
the Ethernet cables were prepared according to the instructions in
4-27
.
In areas in which severe lighting conditions are likely to occur, it is strongly recommended to add
additional protection by placing lightning protectors on all electrical Ethernet cables, near the
connection points with the PTP 820S unit.