Power over Ethernet (PoE) technology in Ethernet switches has been around for over 10 years. The original IEEE 802.3af standard for PoE was approved in 2003 and provides up to 15.4 watts of power on a switch port to power a device. The later 802.3at standard was approved in 2009 and provides up to 25.5 watts of power on each switch port to power a device. Companies increasingly are requiring a greater amount of PoE switch ports to power wireless access points, voice over IP phones, and network cameras. With regards to powering wireless access points, many existing access points (APs) are getting near the traditional PoE (802.3af) standard of 15.4 watts of power. As companies look into expanding their Wi-Fi coverage in either existing offices or new facilities, it’s imperative that they have switches with PoE+ (802.3at) capability on the switch ports. Upcoming 802.11ac access points will need more than 15.4 watts of power and PoE+ switch ports will sufficiently be able to power them. Even if 802.11ac may not be needed right away, you’ll be protecting your switch investment by ensuring it is PoE+ capable. But it’s not just about PoE+ functionality to consider when you look to deploy switches. For branch office locations, PoE+ switches with cloud-based services that include on-demand provisioning, hands-free configuration and updates, and unified wired and wireless policy enforcement are ideal.
via WiFiNovation | Scoop.it
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