Before delving into ways to extend PoE distances, it is critical to understand the limitations that exist.The PoE distance can reach depends on a variety of factors, including the quality of the cable, the power requirements of the device, and the PoE injector supply standard being used.The most common PoE standard, IEEE802.3af, supports a power distance of 100 meters between the PoE switch and the powered device.Power over Ethernet (PoE) distance has limitations and the transmission distance depends on several factors, the cable quality, the power requirements of the device, and the PoE standard used.

The first factor is cable quality: The quality of the Ethernet cable affects the maximum distance PoE injector supply can transmit. Higher quality cables with lower resistance and better insulation reduce power loss and can transmit power and data over longer distances.For example, if you use Cat6 and Cat6a, which reduce power loss and voltage drop, cables can handle higher power levels and provide better insulation, thus improving PoE injector supply performance.

The second factor is the voltage requirement: Voltage variation occurs when the voltage drops as it travels along the Ethernet cable. It can be affected by cable length, wire gauge and power consumption. Too much or too little voltage can lead to an unstable power supply, causing the device to malfunction or not start at all, thus affecting the PoE injector supply distance.

The third factor is power requirements: Different powered devices have different power requirements. Devices with higher power requirements may experience voltage drops and range reductions. Understanding the PoE injector supply of devices is critical to planning a PoE infrastructure.