????????
RJ-45??????m=n�4+n�4�15%
m:??RJ-45???????   
n:????????
n�4�15%:???????
?????????m=n+n�3%
m????????????
n:????????
n�3%??????
???????C=[0.55�(L+S)+6]�n
L:???????????????
S????????????????
n:?????????
0.55?????
6?????

??????,??????=??????�3
1??????+?????)/2=???
(???+5?)�??=???
???/305(??????)+2?=???
+????????,??????????,?????,????????

2????????4??????????2??62.5/125????????
????????????????????????????????�???????????????
??????????
A?????????
B?????????
C???????????
??????????A?B?/2�1.1�C
????????????????/305?/?
???????? ???????????

3?C=[0.55?F+N?+6]�n(m)
C????????
F??????????????
N???????????????
n??????????

?????
1.(????+?????)/2�1.1= ????
????�???=???????
????/305=??????
2. ??????+???/2�1.1+2�??
?????x????/305
3. ????? + ?????/ 2 �1.1 + ???�????/ 305 = ?????
???1.1???????????????????????????????
????????????305?1000?????
4. ??????????????�?????????10??????????

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