Brief： GPON OLT

undefined GHT: 54pt; COLOR: #000000; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400; TEXT-DECORATION: none; mso-protection: locked visible" class=et2 height=72 width=652 x:str>Gigabit being used in   FTTx (FTTH) deployments.   PON is different than other  optical network topologies in  thatundefinede="mso-spacerun: yes"> to Multi-Point (P2MP)  topology.