TEF1105P-4-63W is a 5-port t10/100Mbps unmanaged switch that requires no configuration and provides 4PoE ports.
It can automatically detect and supply power to all IEEE 802.3af/at-compliant Powered Devices (PD’s).
Enabling “EthernetExtend Mode” makes Ports 1-4 negotiate to 10M full-deplex rate and isolated from each, but all communicate with the Uplink port. In this mode, the transmission distance can be up to 250m. In this situation that the electrical power is transmitted long with date in one single cable allowing you to expand your network to where there are no power lines or outlets, where you wish to fix devices such as AP’s, IP cameras or IP Phones, etc.