Power over Ethernet (PoE) does not work directly over fiber-optic cables because fiber-optic cables are designed to transmit data using light, and they do not conduct electricity. PoE requires copper cables (such as Cat5e, Cat6, or Cat6a) to deliver both power and data. By definition, PoE is a system that passes electric power along with data over cabling. Traditionally, this has been done over a twisted-pair copper cabling. As we know, the devices in PoE networks can be divided into two categories: PoE powered sourcing equipment (PSE) and PoE powered devices (PD), of which, there are a wide variety of PoE powered devices, commonly IP phones, IP cameras, wireless access devices, video phones, video conferencing. What Is PoE Media Converter and How Does It Work? To overcome the transmission distance limitation of traditional copper cabling, it is often the case that a media converter is deployed to connect copper to fiber. PoE components include injectors, extenders, and others.
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