. 11.1. Arcnet.
Arcnet (Attached Resource Computer NETWork) , , . Arcnet . .
:
( ), ;
, , , ( );
;
, , , ;
, , . , .
.
Arcnet ISU (Information Symbol Unit - ), / . (Alert Burst),
. .
Arcnet 5 .
- ITT (Information To Transmit) . . , , .
- FBE (Free Buffer Enquiries) . .
- . .
- (ACKnowledgments) . , . . FBE .
- NAK (Negative AcKnowledgments) . ( FBE) .
Arcnet.
Arcnet . . Arcnet . , , 0 255.
: , (RG-62) 93 . 2;5 /. .
Arcnet ( 6 ).
: .
. 11.2. Token Ring.
() . 4 / 16 /. (Token Ring), .
|
|
:
;
, , , (). , . , , , . ( ) ;
.
Arcnet, , . Arcnet, Token Ring .
Token Ring :
/ (Data/Command Frame) ;
(Token). ; , , ;
(Abort) .
Token Ring.
, . , , , Token Ring . , . , .
Token Ring 4 16 /, , Ethernet.
Token Ring . .