NST's POE Switch, L2 based product, can provide power through Ethernet cable to devices (PD) such as IP Phone, wireless LAN AP and CCTV Camera that comply with IEEE 802.3af or IEEE 802.3 at POE. POE switch automatically detects the load on the connected POE device (PD) and dynamically supplies the power required by the POE product. In addition, long distance POE switch reliably supply data and power up to 500m