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3 :
EIA/TIA-568 Commercial Building Telecommunications Wiring Standard ( );
ISO/IEC IS 11801 Information Technology. Generic cabling for customer premises ( );
CENELEC EN 50173 Information Technology. Generic cabling systems ( ).
EIA/TIA-568 ( ) :
3, 16 ,
5e 100 ,
6 250 ,
6A 500 .
ISO 11801 EN 50173 :
16 ,
100 D,
250 E,
500 E(A).
10 .
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, ( ) : I/I-568 / ISO/IEC 11801, I/I-569, I/I-606A, .
01.01.2010 . 53246-2008 53245-2008, , .
, , Institute of Electronic and Electrical Engineers (IEEE), Asynchronous Transfer Mode (ATM) Forum, American National Standards Institute (ANSI) International Organization for Standardization (ISO).
ANSI I/I-568-B ANSI I/I-569.
.
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( , , , . .);
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(network cards).
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, :
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34 CSMA/CD.
CSMA/CD (Carrier Sense Multiple Access with Collision Detection ) (802.3) . CSMA/CD (, ) . Ethernet, (Fast Ethernet, Gigabit Ethernet).
, CSMA/CD. CSMA/CD OSI.
. CSMA/CD Carrier Sense Multiple Access (CSMA).
, , , jam signal ( backoff delay truncated binary exponential backoff), .
CSMA .
, , Ethernet, . , ( ) . jam signal, , .
Ethernet CSMA/CD.
