1,Support IEEE802.1p,SIP/MGCP/H.248. 2,Upstream:1Gb.downstream:1 Gb 3,QOS, PON, OAM,ALAN,multicast 4,For outdoor use DescriptionONU 4FE+2RS485/232 is an GEPON broadband terminal device. It compatibles with IEEE802.3ah standard, including multi models, can meet different users’ requirement. While adhering to the China Telecom's technical requirements,It has good interoperability With major ...