Power-over-Ethernet (PoE) technology has made it significantly easier to deploy network devices by enabling both power and data to be delivered over the existing Ethernet cabling in a unified infrastructure that is easier to expand, upgrade and maintain. The latest IEEE802.3at PoE standard, ratified in September 2009, doubled power delivery to support powered devices (PDs) including Wi-Fi wireless access points, pan-tilt-zoom (PTZ) video-surveillance cameras and notebook computers, and added four-pair powering to support the even higher power requirements of PDs such as access control systems.
Now, the industry is focusing on enhancements that extend the distance that PoE-powered devices can be placed from the power source while still maintaining a very high level of power efficiency. The latest PoE technology reduces power dissipation and ensures highly responsive and agile, per-port dynamic power management, while also increasing the distance over which PoE can be used by as much as 60 percent - and even longer using new PoE extender technology.
To read this article, which originally appeared at the EE Times Europe Power Management site, click here.
About the author
Sani Ronen serves as a Senior Marketing Manager, PoE Midspans, at Microsemi,
responsible for Inbound and Outbound Marketing activities worldwide with
accumulated eight years' experience in the PoE Market. Previously, Ronen
worked for Radwin as a Senior Product Manager, responsible for Wireless
Point to Point products, and at Siemens as Account Manager for carrier
Ethernet Products. Ronen holds a B.Sc. in Electrical & Computer Engineering from the
Ben-Gurion University in Beer-Sheva, Israel and a MEI (Master in