FTTx ( , PON) (). ( triple play 3050 / ) . , , , .
FTTx . , . : . 50100 , 2030 .
. (ITU-T) (. 1.1):
FTTN (Fiber to the Node) ( 1);
FTTC (Fiber to the Curb) , ; ( 500);
FTTB (Fiber to the Building) ( 100);
FTTH (Fiber to the Home) ( ).
1.1
, FTTx (Fiber To The ) , , . FTTH, , , .. , .
( ) ( 1.2). , ( , , ..), .
. PON (Passive Optical Network, ) . .
PON , ( ) : , , , , .
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OLT (optical line terminal, ), ONT (optical network terminal ITU-T), ONU (optical network unit IEEE) ( 1.2).
1.2
PON OLT ONT . - (point-to-multipoint).
OLT PON , PON, ONT .
, , , . ( , ) 1490 1550 , ( , ) 1310 .
1.3 ( , )
( 1.3), ( OLT) ONT (), .
1.4 ( , )
( ) ONT ( ), ( 1.4).
PON
EPON GPON, .
GPON EPON (TDM). EPON GPON, . GPON EPON. 1:32 GPON 73 /, EPON 30 /; 1:64 36 / 15 /. , GPON EPON , PON- GPON .
GPON EPON triple play, , , . triple play : IPTV HDTV (15 /c) SDTV (2x4 /c), (2 /c), (1 /c), VoIP (30,1 /c). 26,3 /c, , . , PON- 32 EPON, 64 GPON.
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GPON , ONT . ONT . EPON .
EPON Multicast PON, IEEE, Multicast- , Ethernet-.
, , , , , , . .
, . , , . . .
GPON , . (), . 100% , (, , ) .
GPON . .
GPON 622 / 2,5 /c, PON, .
GPON . , .
PON, , , , GPON.
GPON , - . GPON ; DBA (Dynamic Bandwidth Allocation) PON; ; .