, , , . , .
, , . 1. . 4.1 OLT-ONT, .
1. . (0,4 / 1310 ) . , 8 = 0,4 / 20 . 20 PON 32 .
2. , . 1 N 3,3log2N .
(N=32 APON) 17 .
4.1
. 4.1.
3. . , Pinmin (-33 ) pinmax (-11 ), {minimum overload). BER = 10~10, . , , Poutmin (-2) Poutmax (+4), :
Bm = (-2 ) - (-33 ) = 31 .
OBmin = (+4 ) - (-11 ) =15
4. / . OBmin, OBmax. . , 15 (. . 4.1).
, , y . , DL 15 . , .
.