, , . () . . .
(UTP) , , , , . (, , ), , . . .
, . , . , ( ) , . , , , , ( 100 ). 1000 /, , , .
STP - , (crosstalk ). , . , , . . , .
RJ-45, , (RJ-11), . RJ-45 RJ-11. . , . , .
(-), . . , , .
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:
1. 3, 4 5 100 15% 1 . : 85 115 . , STP 150 15%.
2. , , . , , . , .
3. (NEXT Near End CrossTalk).
4. . , ( NVP Nominal Velocity of Propagation, ).