Ethernet. , , , . , Token Ring .
, (point-to-point) (point-to-multipoint). , .
. .
, , Motorola. - Altair Vista Point Altair Vista Point LR. . . 18 5,3 /. : , - ( 2,1 ). , Altair Vista Point, , . ,
, .
. , , .
, Windata: FreePort, Airport I, Airport II. point-to-multipoint . spread-spectrum, . spread-spectrum , . . , , , . . , , , .
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FreePort , . . , . FreePort 80 : . 5,746-5,830 , 2,400-2,484 . 62 .
. , . - ( 8 ) .
FreePort , , , . Ethernet, , FreePort , Ethernet. , , , , .. . , Ethernet .
FreePort , . , , .
FreePort , , .
Airport I Airport II , . , (300 Airport I 1,4 Airport II). . , FreePort. ( ), Airport II ( 7 ) . . , , 2,8 .
NCR:
1. NCR WaveLAN ( );
2. WavePOINT;
3. .
WaveLAN, 915 2,4 ( 915 ) 2 /. ; 240 (915 ) 190 (2,4 ) . spread-spectrum. Ethernet . Ethernet , , , .
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. -, , , -. ( ) .
(, ) Wave-POINT, , .
, NCR , - 8 ( 915 ). , WavePOINT , .
, Microwave Radio. , MR-22DR-HS, 23 , - 20 ; 8 /. .
-NET Ethernet, 10Base2, 10 / 20 . 7,57-8,68 . ( ). .
. . , : .
spread-spectrum. , , : , . ( ) . , ( ). .