Power Over Ethernet Interoperability Guide

Effect of Temperature on Cable Performance

Ideally, we want the network to be unaffected by our decision whether to run power down the cable (use PoE) or not. We want power and data to be separate and as transparent from each other as possible. Otherwise, for one, troubleshooting can become very challenging. Many techniques and tricks are employed to make the separation of power and data over Ethernet cables a reality, and we will discuss some of these later in this chapter. But there is an obvious manner in which they can interfere, and we will discuss that here.

Signal strength is a critical factor in overall network performance. A lower Insertion Loss is the functional equivalent of a strong signal at the receiver end. We prefer thicker ...