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When the PoE power supply fails, it can be investigated from the following four aspects. • Check whether the receiving end device supports PoE power supply. Since not all network devices can support PoE power technology, check the equipment for POE power technology befor...

PPPoE represents a point-to-point protocol on the Ethernet. It is a network tunnel protocol that encapsulates the point-to-point protocol (PPP) in the Ethernet framework. It enables Ethernet hosts to connect to a remote access concentrator via a simple bridging device.Us...

POE power supply is achieved through the network cable, and the network cable is composed of four pairs of twisted pairs (8 core wires), so the eight core wires in the network cable are the PoE switch to provide data and power transmission media for the receiving device....

Step 1: Detect the receiving device (PD). It is mainly to detect whether the connected device is a real receiving device (PD) (in fact, it is to detect the receiving device that can support the Power over Ethernet standard). The PoE switch will output a small voltage at ...

Under the development trend of the Internet of everything to build a smart world of things, users' demand for IoT devices is increasing, and POE switches have become an effective medium to provide power and data transmission for PD devices through network cables. PoE swi...

With the deployment and implementation of the optical transformation of broadband network, the network quality is improved, the failure rate is reduced, and the user's favorable impression is increased. At present, the formation of broadband access network is dominated b...