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Tolley Group, 18th May 2009
The increasing use of PD equipment such as VoIP and wireless access points has to assume that the selected Power Sourcing Equipment works to the 802.3af standard. Recent test by Sifos Technologies shows that you have to look deeper into a PSE rather than just the data sheet
Jim Sinopoli, PE, LEED AP, RCDD Managing Principal, Smart Buildings LLC 18th May 2009
Access control systems that incorporate IP and Power-Over-Ethernet (POE) components were introduced to the marketplace almost two years ago. The evolution of access control systems to structured cabling, IP protocols and POE was inevitable; look what happened to telephone and video surveillance systems
Microsemi Corporation, Irvine, CA. 20th November 2007
An informative article on the progress of PoEPlus by Daniel Feldman Product Line Manager, Microsemi; Voting Member, IEEE802.3; PoE/PoE+ Technical Committee Chairman, Ethernet Alliance.
Jean Picard, TI 8th September 2006
Texas Instruments have produced a white paper that is aimed to help designers prevent damage to their devices from external unwanted voltage sources. Common and differential mode examples of induced voltages are discussed as well as ESD and EFT. The abstract is printed below.
Tony Morgan, Senior Applications Engineer, Silver Telecom. 10th July 2006
There have been many technical articles, white papers and product application notes that explain the theory on how to make a powered device. They give an overview of the IEEE 802.3af standard for Power over Ethernet and explain how to extract the power from the CAT5e cable. The following is a practical guide to help take that information and to design a PoE enabled powered device.
By: Frank Madren, President, GarrettCom, Inc. 26th May 2006
Perhaps the final frontier in the battle for dominance in industrial communications between field buses and Ethernet, is the ability to transmit power and data across the same wire. Shared use of cabling reduces costs, and in some applications, is the only viable solution for extending power to the very edge of an industrial operation.
Phihong USA 11th December 2005
Phihong has been designing, manufacturing and selling Power-over-Ethernet (PoE) solutions to Voice over Internet Protocol (VoIP) users since the IEEE 802.3af specification was ratified in 2003. The company’s PoE products, which include full-power midspans, splitters, modules PoE-compatible switching power supplies, provide VoIP system users a single point backup in a cost-effective, easy-to-implement package.
Sharon Dagan, Product Manager, Systems, PowerDsine 25th October 2005
A interesting white paper which gives you the logical reasoning as to whether to choose Mid Spans or Switches for your VoiP system.
Author: Sharon Dagan, Product Manager, Systems
PowerDsine Inc. Proprietary Information
Copyright © 2005 PowerDsine Inc. All rights reserved.
Don Findlay 14th September 2005
John Laban discovered that while traveling his collection of power adaptors and cables were just excess baggage.
GarrettCom 13th May 2005
This paper is called Power over Ethernet - The Industrial Opportunity Today. provides a good explanation of POE