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Power Over Ethernet Interoperability Guide by Sanjaya Maniktala

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Safety Standards Overview
The international safety standard applicable to information technology equipment (ITE) and telecom (including Ethernet and PoE) is IEC 60950-1. Its first edition was released in 2001. That is the early version we will refer to in this chapter because it is the version referred to by the PoE standard IEEE 802.3at-2009. We note that the second edition of IEC 60950-1 followed in 2005. Yes, there are some changes and clarifications in that over the first edition, but none to cause any major impact on the conclusions and/or recommendations of this chapter.
It is normal practice for countries to “rebadge” the parent IEC standard as their own national or regional safety standard. In this manner, international safety requirements ...

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