mọi người có thể dịch giúp e đoạn này vs được k ạ...(chuyên ngành ĐT - VT).."GPON is a synchronous transport network architecture. Its downstream MAC is derived from GFP-framed SONET, whereby it operates on a fixed time base of 125 µsecs and time division multiplexing (TDM) is used to divide the bandwidth to the 32 ONTs. Because it is synchronous in nature, idle characters are inserted whenever no asynchronous Ethernet traffic is available. Optical splitters passively split the same downstr... mọi người có thể dịch giúp e đoạn này vs được k ạ...(chuyên ngành ĐT - VT).."GPON is a synchronous transport network architecture. Its downstream MAC is derived from GFP-framed SONET, whereby it operates on a fixed time base of 125 µsecs and time division multiplexing (TDM) is used to divide the bandwidth to the 32 ONTs. Because it is synchronous in nature, idle characters are inserted whenever no asynchronous Ethernet traffic is available. Optical splitters passively split the same downstream signal to each of the 32 ONU end points.Upstream, TDMA scheduling is used and incoming Ethernet traffic is again encapsulated and mapped into a 1.2 Gbps synchronous framed signal in a similar manner to the downstream."Tks all !! :)
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