... Gb 3,QOS, PON, OAM,ALAN,multicast 4,For outdoor use DescriptionONU 4FE+2RS485/232 is an GEPON broadband ... meet different users’ requirement. While adhering to the China Telecom's technical requirements,It has good interoperability With major infrastructure ... to achieve a powerful Layer 2 Ethernet functionality,suitable for outdoor scenes.ApplicationAs a terminal, through the optical splitter,ONU ...