Cisco UPOE, Benefits and Solutions

Cisco Universal Power over Ethernet (UPOE) extends the IEEE Power over Ethernet Plus (PoE+) standard to double the power per port to 60 watts.

Cisco UPOE 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.

Cisco UPOE is currently available on the Cisco Catalyst 4500E and Cisco Catalyst 3850 platforms.

UPoE Architecture

As defined in IEEE 802.3af and IEEE 802.3at, PoE delivers electrical power over two pairs out of the four twisted pairs of cable in Class D (also known as Cat5e) or better, cabling as specified in ISO/IEC 11801:1995. A PSE uses only signal pairs, the pairs 1, 2 and 3, 6, to transport power from the PSE to the PD and leaves the spare pairs, the pairs 4, 5 and 7, 8, idle. This architecture can deliver up to 30W per port.

UPOE uses the same cabling standard as PoE. Instead of delivering power over two twisted pairs, it provides the capability to source up to 60W of power by using all the four pairs of standard Ethernet cabling (Cat5e or better).

The architecture for a 4-pair system is pretty straightforward; it is an extension of the 2-pair design. The 2-pair system uses one PSE controller to power the PD through the signal pairs of the cable. In the new 4-pair system two PSE controllers will be used to power both the signal pairs and the spare pairs. Figure 6 shows the UPOE architecture.

UPoE Operation

PoE/PoE Plus/UPOE comparison

	PoE	PoE Plus	UPOE
Minimum cable type	Cat5e	Cat5e	Cat5e
IEEE standard definition	802.3af	802.3at	Cisco proprietary
Maximum power per PSE port	15.4W	30W	60W
Maximum power to PD	12.95W	25.5W	51W
Twisted pair used	2-pair	2-pair	4-pair

Available on Cisco Catalyst 4500E Series Switches, Cisco UPOE can:

• Lower capital expenditures by eliminating wall circuits for endpoints
• Reduce operating expenses by consolidating distributed uninterruptible power supply (UPS) deployments
• Reduce deployment time through interoperability testing of devices
• Reduce energy expenditure through Cisco EnergyWise
• Extend intelligent load shedding capabilities to the devices connected to the switch

More Related

Need Cisco Inline Power, POE or the New POE+?

FAQ: Power over Ethernet (PoE) Power Requirements

Comments

[rmm3bnc71q]

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[022izmwh7j]

I’ve always known about Rule 2 and it’s good that I can cite you as a good source, just in case ???? I’m into module writing and we title the module sections as Lesson 1 plus the title of the lesson.

[prashant]

Power Over Ethernet Solutions Market worth 1,048.3 Million USD by 2022
https://www.marketsandmarkets.com/Market-Reports/power-over-ethernet-solution-market-84424663.html

[Emileybrown]

Nice Post