PoE splitters are employed in two distinct network scenarios: The first instance is a network that necessitates a link between a PoE switch and non-PoE devices that require power. The second instance is a network where data is transmitted through a non-PoE network switch or router interfacing with either PoE compliant or non-PoE end devices.

Depicted in the subsequent outline, the Power Source Equipment, known as the PoE switch, is the power provider through the Ethernet cable. In this scenario, the PoE splitter’s input cable can directly connect to the switch. There are two output lines; one dedicated for data distribution and the other for power supply. Upon receiving a composite PoE signal, the splitter then subdivides the data and power freeing them into dual distinct lines towards non-PoE end devices including, but not limited to, IP cameras and wireless access points.

In the event of a combination of PoE devices, both compatible and non-compatible, under no circumstances should the PoE splitter be directly linked to the non-PoE switch. Instead, rely on the support of a PoE injector for power supply. As demonstrated in the following figure, a PoE splitter is connected to a PoE injector, enabling the simultaneous transmission of power and data to the ultimate camera destination.