IEEE Group Explores PoE 4-Pair Solutions

The new IEEE 802.3 4-pair Power over Ethernet (PoE) Study Group will consider a 4-pair solution’s capability to enhance energy efficiency and to provide more than 25.5 watts of power in improving PoE, which has become the preferred method to power such networked devices as IP phones and access points. Any 4-pair PoE standard proposal could allow for support of new PoE apps for IPTV, industrial Ethernet and more, comments David Law, chair of the IEEE 802.3 Ethernet Working Group and distinguished engineer with HP Networking, who adds, “A 4-pair approach would result in increased efficiency, since the use of additional pairs results in lower channel resistance.” The group and any interested members will meet during the IEEE 802.3 Interim Meeting next month in Victoria, British Columbia.