Description
Cisco UPOE – Power Over EthernetDeliver network power to a range of devicesCisco Universal Power Over Ethernet (UPOE) extends the IEEE Power over Ethernet Plus (PoE+)
standard to double the power per port to 60 watts. It can extend resilient network power to a
broad range of devices, including virtual desktop terminals, IP turrets, compact switches,
building management gateways, LED lights, wireless access points, and IP phones.IEEE Standard PoE(P)PoE is the capability to provide up to 15.4W of power over 100m of standard Category 3 (or better)
unshielded twisted pair (UTP) cables when an IEEE 802.3 af-compliant device is attached to the PoE
line-card port. IEEE 802.3at-compliant PoE+ extends the Power over Ethernet capability to up to
30W over 100m of Category 5e (or better) UTP cables.UPOEUniversal Power Over Ethernet (UPOE) is an enhancement to the PoEP (802.3at) standard to allow
powered devices up to 60W to connect over a single Category 5e cable. Standard PoEP uses only 2
twisted pairs (out of 4) in the Ethernet cable. UPOE uses all 4 twisted pairs to deliver 60W to
the port. The additional power that UPOE offers over standard PoE extends the advantages of PoE to
next-generation powered workspace devices such as virtual desktop displays, workgroup switches,
and physical access controllers. All Cisco Catalyst 4500E Series UPOE Line Cards support standard
PoE as well as Cisco Prestandard PoE. When deploying UPOE devices, Category 5e (or better) UTP
cable is recommended.Instead of requiring wall power, attached devices such as IP phones, wireless base stations, video
cameras, and other IEEE-compliant appliances can use power provided from the Cisco Catalyst 4500
Series PoE Line Cards. This capability gives network administrators centralized control over power
and eliminates the need to install outlets in ceilings and other out-of-the-way places where a
powered device can be installed. When a switch is connected to an uninterruptible-power-supply
(UPS) system, network administrators can help ensure that power outages will not affect network
availability.
