Abstract

Sifos Technologies commissioned The Tolly Group to illustrate how its PowerSync Analyzer can measure key characteristics of power delivered by PSEs from multiple vendors.

Two PSEs were specifically selected from both ends of the spectrum – one device was from one of the largest networking equipment manufacturers, and the other from a relatively small vendor. The focus of the study was to illustrate the differences in what often is considered “commodity” PoE rather than to highlight the offerings of a given LAN switch vendor. Tests were performed in January 2007.