Call for Interest PoE-plus

PowerDsine Presentation April 2004 Page 1www.powerdsine.com

Call for Interest PoE-plus

Daniel Feldman [email protected]

Yair Darshan [email protected]

Ronen Heldman [email protected]

TR41.4.4-04-11-018-LM


Agenda Why go beyond 802.3af?

– Higher power

– Support mission critical applications with simple additional management requirements.

Benefits and opportunities

Problems

General scope

Why now is the time?


Why go beyond 802.3af? To power more products in the existing PoE markets

– Markets where part of the PD’s require more than 12.95W

To benefit more markets from Power over Ethernet– Markets that require more than 12.95W for PD’s

Support mission critical application by adding some management requirements– Quickly recovering from failure

– For markets which need 99.999% uptime

Customer demand


Higher power applicationsMarket Application Power Requirement

WLAN Dual band AP’s ~20W

802.11n AP’s ~20W

Outdoor AP’s/Bridges 20W-30W

Cooling/Heating 30W-40W

Security PTZ Network Camera 15W-20W

Cooling/Heating Up to 50W

IP Telephony Video Phones 15W-25W

New Markets RFID Readers and Access Control Systems Up to 25W

802.16 Base Stations 15W to 60W

Workgroup switches Up to 50W

Residential Gateways ~20W

Portable Storage Up to 45W

Industrial sensors 1W to 30W

Laptops Up to 70W

Point of Sales and Information Kiosks 13W to 60W


802.11 Dual Band Market Forecast

Source: IDC June 2004

Waiting for IDC’s approval to show data.


Supporting 802.3af mission critical applications

Several PoE markets demand 99.999% uptime

Need high survivability in case of system failure– Banking

– Medical

– Security

– Point of Sale

– Enterprise Wireless Networking on VoWLAN applications for these markets


The 802.3ad precedent 802.3ad: Link Aggregation Protocol

– IEEE802.3 optional standard for the data link, covering Redundancy Increased data transmission between two nodes (“high data”)

– Link aggregation sub-layer in which multiple physical links may be aggregated together to form a single logical link

– Backwards compatible with single links

Increased reliability in the power domain – Addition of redundancy in the power links hence increased

resiliency


Next generation PoE – Benefits & Opportunities

To power more products in the existing PoE markets

To benefit more markets from Power over Ethernet

– Replaces high power external adaptors

To allow higher up time of 802.3af PDs


Problems No standard for high power

Some vendors have started to develop proprietary solutions for high power applications

– Potential interoperability issues with 1000BT, 10G

– Can’t interconnect different equipment

Some vendors have started to develop redundancy support for mission critical applications

– May need to define minimum management requirements


General scope of study High Power

– How much power is required

– How much power is possible

Considering setting a limit for high power levels in PoE technology

– Today the power delivery capability of the LAN infrastructure is not efficiently utilized

– We don’t wish to open this issue again in the future

Distinction between

– 802.3af PD’s and high power PD’s

Interoperation with 802.3 and other standards

Power redundancy management at port level


Now is the time There is a demand for higher power support from PoE

– Wireless AP, Security world, Video phones other emerging PoE markets

– Avoid proliferation of proprietary non-interoperable solutions

Enable mission critical applications that require redundancy support– Banking, point of sale, medical, etc…

Proprietary solutions are already available in the market

802.3 standards process is the best way to achieve a standard

Documents

Call for Interest PoE-plus