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There are so many kinds of POE switch in the market, how can we distinguish quality ones from fake ones?

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There are many company make great benefits by selling fake POE switch in high price. ONV company has more than 10 years’ experience in this industry, and adopt international standard intelligent energy efficiency classification technology, which support IEEE802.3af and IEEE802.3at standard separately. The most basic way to distinguish is to use avometer to test if the networking line pair for electric energy transmission is with 48V voltage. True POE switch can not test 48V voltage, while fake POE switch can test out differential pressure. Fake POE switch will do great harm to customers. It will burnout networking equipment, and what’s worse, it can cause circuit shot which will results fire.