276     4          

    .   Ethernet   
    ,      -
       . -
 Ethernet    8  72 ,    
      .  . 4.5  -
  Ethernet,     
 .   16   lOBase-T   RJ-45, 
   AUI    .   
  ,     .  -
       ,
    ,    -
  ,       100 .

 lOBase-T

AUI-	1234 5678 9 10 11 12	13 14 15 16	
			л			
MDI-X/MDl| ' 	 MDI-Xh-	'	
		10Base-T		 ;
	-"  '~~-	--~	|:!|	.Etheme
 ^ Ethernet Jglj		/ IP	  , Ethernet	

. 4.5.  Ethernet

    lOBase-T    -
       , 
   ,      ,   -
 .   ,    RJ-45,   -
     MDI-X ( MDI), 
   ,     
       , 
  (. 4.6).     
  MDI-X      -
  .     -
   MDI,     .  ,
      , 
    MDI-X     MDI . 
        MDI-X,    MDI, 
    ,     
 . 4.6.

 - Ethernet  - -
    4- .     
    ,     
         .
        -
,   4- .      -
,         .  