FTTH

FTTx known as the new generation of optical access network, it applied to connect the ISP with the end users. FTTx can be Active Optical Network and Passive Optical Network(PON). Because the higher cost of Active Optical Network, the end users are mainly involved with Passive Optical Network.

FTTH

As above pictures shown, PON including 3 main parts, known as OLT(Optical Line Terminal), ONU(Optical Network Unit) and ODN(Optical Distribution Network).