100Base-T (802.3u) ( OSI) :
100Base-TX UTP 5, STP Type 1;
100Base-T4 UTP 3, 4 5;
100Base-FX .
Fast Ethernet
Fast Ethernet , , 10 / Ethernet, , . Fast Ethernet , Ethernet.
100Base-FX -
MAC-, (TX FX) . , , , , MAC.
100Base-FX 3
. 3. FX
Fast Ethernet , FDDI. FDDI, , (Rx) (Tx).
FX TX , FX/TX.
100Base-T -
PHY TX 5.
FX (Auto-negotiation) .
. 5. TX
100Base-T4 -
T4 , Ethernet' 3. 4 , .
T4 6.
4B/5 8B/6T. 8 MAC- 6- (ternary symbols), , . 40 . 6- , . . 33.3 /c, 100Base-T4 100 /c. - 25 , 3.
. 6. T4