A closer look at PoE Plus - White paper

Exploring the risk to the cabling infrastructure


Power over Ethernet Plus (PoE+) has existed since 2009 and combines power and data transmission in a single cable supporting applications up to 25.5 watts. Compared with its predecessor, PoE (from 2003), which delivers up to 12.95 watts, the risks to the cabling infrastructure from PoE+ are increased. Higher power increases the temperature inside the cable and therefore also the attenuation. Additionally, spark discharge caused by unplugging of connections under load risks damaging the connectors.

This white paper will discuss the standards involved, highlight the challenges PoE+ poses to cabling and propose the best copper systems available today.