It supports standard OMCI, can provide up to 1.25Gbps uplink and 2.5Gbps downlink high-speed transfer rate. It can fully meet carrier-grade FTTB\FTTH\FTTO equipment requirement. 

The ISP customer need not change the original FTTB Access Switch but just need SOGSP-4312-20D to replace the uplink SFP, so that the whole solution can be replace from Active Fiber Networks to GPON solution, which protect your former investment.