10-

621.39
10-
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The different constructions of sockets and cables are investigational from point of influence of intercable transitional hindrance on quality of transmission in 10-gigabit cable systems. The method of calculation of basic testable parameters of network is resulted on the twisted pair for the cable of category 6 and higher. It is rotined that high quality of components of the cable system must be complemented the due level of planning and implementation of installation works. The tasks of physical audit of the cable system are certain.
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IEEE 802.3 10 /, (100 , ) 2,5 /. 2,5 / ATM, 2,5 /. 50.. .100 , [1]. » 10GBaseT: UTP (. . Unshielded Twisted Pair - - ) 6 ( ~7,9 ); FTP (. . Foiled Twisted Pair - ) 6 ( ~6,3 ). -
: 7 ( ~7,8 ); 8 ( ~6,0 ).
10 /. 10 /c (250.500 ), [2].
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300 - ( . Alien Crosstalk - ). - ANEXT ( . Alien Near End Crosstalk - ). , -
. -AFEXT ( . Alien Far End Crosstalk - ) - . , .
500 .
300.500 -
. FTP 6 UTP 6 (Augmented Category 6) . . : -
; ; ; ; . - 10- - PS ANEXT ( . Power Sum Alien Near End Crosstalk) [3].

250.500 ». ; , .
»
A = An - Al, (1)
An - (» . near - ); AL - L.

Ax = IAn - Al, (2)
XAn - .

C = 2f log2 VT+A , (3)
f - (» . border - ); A - - .
(10 /), . ( i- j- , ). W, . : f - , ; - , /; Q0 - ( , /, , ). , :
A °
(4)
AL , . 250.500 , ( + + + )
=+/ (+1,2), (5)
^ - , ; /100 - 100 ; - ; - .
RL ( . Return
Loss), (, , ). . RL , - .
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1) ;
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3. 10- »

al (Att) 1 = [/100 ] L []/100, - ; 1 - 1 = ^4/ + k2 /+-^, \ 2, 3 - , -; \^1 + 21 + = . 1
(ANEXT)
Af (AFEXT)
F (ACR) IF (PS ACR) = - 1 = ^ - 1
Rl Rl = 4 - 10 ^ (//20), 4 - , -
Sd (Skew/Delay) = |,- - ,|, ij = 1, - ( = 4); ^ -
/ = 2 1°^1 + , / - ; - ( - 1)
- = ndb + + dc + ? - ; d - ; - (=0,6 10- ); dc - ; -
4. ,
,

P < 2 200 100 50
64 30 25
2 > P < 5 300 250 150
P >5 150 75 40
600 500 300
40% 10- , , 40%- 0,6.
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derating temperature range) : 0...+50°, -20...+60°.
- DTX-1800. Alien Crosstalk DTX-1800; , , , DTX-MFM. Alien Crosstalk, , . . 2 DTX-1800 , -

_ -
. 2. -»
ANEXT -» .
, . Alien Crosstalk, - ANEXT . 16 ANEXT. W , 16(W - 1) 1 500 30 .
. 3 , DTX-1800 AFEXT . .
Alien Crosstalk, ANEXT. DTX-1800, : , , . , , -
, ANEXT. , . , .
PS ANEXT ( ) , DTX-1800 USB ( . Universal Serial Bus - ) - - » .
. 4 » . ANEXT (An), , AFEXT (Af), .
. ANSI/TIA/EIA-606-A ( . Administration Standard for Telecom-



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munications Infrastructure). 606-A .
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. , 701-1-1 1 1 701.
14763-1 . , . 5.
5. ISO/IEC 14763-1
1 2 3 4 5
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10 / , ;
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1. .. 0420800058\0043. // ». 8; IV .-. . ».
2. .., .. // , 2008, 1(4), . 77 - 85.
3. . , . . - : . -LAN, 2006, 1, . 26 - 32.
4. .., .. - , 500 // , 2008, .4, 3, . 28 - 35.
5. ., . // , 2000, 1, . 34 - 39.
6. EN 50174-2 . . 2: ».
7. ., .. // , 2008, .4, 4, . 22 - 29.
03.02.2009 .
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