First
Huawei OLT is the optical line terminal, ONU is optical network unit (ONU), they are all optical
transmission network connection device. PON is essential in two modules: PON (Passive Optical Network: Passive Optical Network).PON (passive optical network) is to point to (light wiring network) does not contain any electronic devices and electronic power, ODN all by optical divider (Splitter) passive components such as composition, does not require expensive active electronic devices.A passive optical network includes an installed on the center control station of the optical line terminal (OLT), the level of a group of form a complete set of installation on site of optical network units (about luggage-and ONUs).Between OLT and ONU optical distribution network (ODN) contains the optical fiber and passive optical splitter or coupler.
