POE供電主要是靠網線通過POE交換機為遠端受點終端提供網絡供電，因此，POE供電首先要選擇8芯網線，4條芯來收發的，4條芯是來進行供電的。

由於POE供電對網線的要求比較高，如果網線的電阻太高，傳輸信號就會出現不穩定甚至不同的情況。所以選擇無氧銅網線作為POE供電的傳輸介質會更為合適。

一般來說，無氧銅的網線電阻較低，傳輸距離較遠，傳輸效果比較穩定，因此，在作為POE供電傳輸介質時，不容易出現傳輸問題。

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Which material is used for POE power supply transmission?

The POE power supply mainly relies on the network cable to provide network power supply to the remote receiving terminal through the POE switch. Therefore, the POE power supply first needs to select the 8-core network cable, the 4 cores to send and receive, and the 4 cores to supply power.

Since the POE power supply has higher requirements on the network cable, if the resistance of the network cable is too high, the transmission signal may be unstable or even different. Therefore, it is more suitable to select an oxygen-free copper network cable as the transmission medium for POE power supply.

Generally speaking, the oxygen-free copper has a low network resistance, a long transmission distance, and a relatively stable transmission effect. Therefore, when it is used as a POE power transmission medium, transmission problems are less likely to occur.

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