Алиев Т.И. Сети ЭВМ и телекоммуникации

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123456 2. 78549AB2 A565CDEEFC2

111

9:

• BE87673D 5BD5B 7BC2BC7CC – 5B527D 5 3236C3

A76B1B ECDB5B1B CD325787 A 835B BD3C78 8CD 2C7AB

(D2BEB) 68 C2BC7CC 47B5 2CCA7.

542:

• 78C4C3 D23 2B53 C1787, 4DB D23E3D 538C43C BFBDC

32367D4CA7 68 BE3343C 6BDB532BDC 2C37 C, A7A 836D5C3,

EB897 DBCBD9 2378C7CC;

• 3AD2 C1787 C23, 43  BD3C789 AB6B5; D7A, 2C

3236743 53 83 C8C 36CC 47DBD7 BB5B 172BCAC AB67 E63D

2757 7 7, 4DB 5 657 277 53 BB5B 172BCAC AB67 NRZ.

5-7 8CAB C2BAB1B 3AD27 ECB82 C89 AB6

CB893D 236AB.

2.3.3.5. #CD5AF657 E5CF526C7 3 2AB47F624C65

C67F3C7 (AMI)

+6B C B6CCA7C 3DB67 RZ 583D 3DB6 D68DD

CD48DB2 9 26A582ABD B5895 (Bipolar Alternate Mark Inversion,

AMI), 5 ABDB2B CB89D D2C 2B5 BD3C787 – B8BCD389,

835B C BD2C7D389 (2C.2.32,5). #5BC4 «0» AB6C23D 835

BD3C78B, 7 65BC47 «1» – 8CEB B8BCD389 BD3C78B, 8CEB

BD2C7D389, 2C &DB BD3C78 836F3 36CC 2BDC5BB8B3

BD3C78 2366F3.

92:

• 8CA5C6C23D 2BE837 BDBB BD758F3 C BDDD5C

7BC2BC7CC 2C 3236743 46 D9654DB2A56D9A5 54,

BAB89A C178 5 &DB 8473 236D7583D BEB B836B57D389BD9

27BB82 C89B5  D3 3 3AD2B, 4DB C  AB67 NRZ,

32367F31B 43236FC3 8C C 36CC, DB 3D9  47DBDB BB5B

172BCAB 7;

• 5 38B, CB89B57C3 AB67 AMI 2C5B6CD A EB833 AB

3AD2 C1787, 43 68 AB67 NRZ, 7 74CD C A EB833 5BAB

2BAB BBEBDC A7787 5C, 5 47DBDC, 2C 3236743

43236FC 36CC C 83 47DBD7 BB5B 172BCAC 7;

• 236BD7583D 5BBBD9 27B757D9 BCEB43 C178 2C

723CC 43236B57C B82BDC C178B5; C178  3AB223ADB

B82BD9 7573D 32855E 926DE.

542:

• 78C4C3 D2 2B53 C1787, 4DB D23E3D 538C43C BFBDC

32367D4CA7;

• 78C4C3 BDBB BD758F3 5 C1783 5 8473 68C

B836B57D389BD3 83.

123456 2. 78549AB2 A565CDEEFC2

112

2.3.3.6. 5476C2AB6 E5 3 C67F3C7 DFC 7C6C7

(NRZI)

"DA526 CD4 9 B5895 8 545 (Non Return to Zero with

ones Inverted, NRZI) BB 7 AMI, B C33D DB89AB 657 2B5 C1787.

"2C 3236743 8 B 323673D BD3C78, ABDB2 E8 D7B583 5

2366F3 D7AD3, 7 2C 3236743 36CC BD3C78 33D 7

2BDC5BB8B.

2.3.3.7. $267347F3EC E5

% 8BA789 3D (*%! Ethernet C Token Ring) 6B 367531B

5233C 2C38 E259A589C CD4 (2C.2.32,1), 5 ABDB2B 68

AB6C2B57C 65BC4 36CC C 83 CB893D 323B6 C1787 5

3236C3 A76B1B ECDB5B1B CD325787:

• «1» AB6C23D 323B6B BD 5BAB1B 2B5 C1787 A CAB;

• «0» – BE27D 323B6B BD CAB1B 2B5 C1787 A 5BAB.

48C 673 B6327D B626 3AB89AB 36CC C8C 83, DB 5

74783 A76B1B ECDB5B1B CD325787 2BCB6CD 6BB8CD389

83E 323B6 C1787.

92:

• BE87673D 5BD5B 7BC2BC7CC, D7A A7A 743C3

BD3C787 5AC 27 C33D 5 3236C3 ECDB5B1B CD325787, 4DB

B3D 8CD9 C178B 68 C2BC7CC 2CCA7  32367D4CAB;

• C33D DB89AB 4B2 F8DB BD3C787;

• 3AD2 743D32AB1B AB67 E5%5, 43  ECB82B1B

C89B1B, 5 2363 5 1,5 277: BB57 172BCA7 2C 3236743

B836B57D389BDC 36CC C8C 83 C33D 47DBD

7

2C

3236743

43236FC

36CC

83

B7

2757

7

A7A



AB67

NRZ;

•

3D

BDBB

BD758F3

542:

•

3AD2

C1787

C23

43



AB67

NRZ

AB67

AMI.

2.3.3.8. %C7F76C2AB6 8267347F3EC E5

$92E28B9A38

C8C

823D9A

6A822E49 45F

CB893D

3D

Token Ring (

D7672D

802.5)

FDDI

236D7583D

BEB

27B5C6BD9

743D32AB1B

AB67



65

2B5C

BD3C787

•

«0»

AB6C23D

C33C3

BD3C787

74783

ECDB5B1B

CD325787

;

•

«1» –

B273C3

2366F31B

2B5

BD3C787

3236C3

A76B1B

ECDB5B1B

CD325787

BE7D389B

2CDD53D

323B6



B6B1B

2B5

BD3C787

7

621B

(

2C

.2.32,

123456 2. 78549AB2 A565CDEEFC2

113

2.3.3.9. &5 4F79F5675 D7F72C MLT-3

,B6 D232B535B 323674C MLT-3 (Multi Level Transmission-3)

C33D B1B BEF31B  AB6B AMI. 46CC3 BBD53DD53D

D9654DB2A56 323B6 7 127C3 ECDB5B1B CD325787  B6B1B 2B5

C1787 7 621B. "2C 3236743 83 C178 3 33D (2C. 2.32,3).

37AC7897 47DBD7 C1787 6BDC173D 2C 3236743 68CB

B836B57D389BDC 36CC. % &DB 8473 C33C3 2B5 C1787

2BCB6CD B836B57D389B  B6B1B 2B5 7 621B  43DB

2366F31B 323B67.

MLT-3 CB893D 5 3D FDDI 7 BB53 36 2B5B6B5,

C53D A7A CDDI, C Fast Ethernet D7672D7 100Base-TX B53DB 

CEDB4 3DB6B 8B1C43AB1B AB6C2B57C 4%/5%.

542:

• BDDD5C3 5BD57 7BC2BC7CC;

• 78C4C3 D23 2B53 C1787;

• 78C4C3 BDBB BD758F3 5 C1783 5 8473 68CB

B836B57D389BDC 83.

2.3.3.10. 4C9F567 E5 PAM-5

% DC2B535B AB63 PAM-5 CB893D 5 2B53 78CD6

C1787 C 65ECDB5B3 AB6C2B57C3 (2C.2.32,), B747F33 78C4C3

43D2 2B53, BBD53DD5FC 65 ECD7 32367573 67: 00,

01, 10, 11, DB 3D9 5 B6B ECDB5B CD325783 32367D 27 657 ECD7.

"D 2B539 6BE7583 68 B67C CEDB4BDC AB67, CB893B1B

68 C27583C BCEBA.

92:

• 2C B6B DB 3 AB2BDC B68CC (68CD389BDC ECDB5B1B

CD325787) B A778 5C BB 3236757D9 673 5 657 277 ED233

B 2753C  AMI C8C NRZI, D7A A7A 5 B6B ECDB5B CD325783

32367D 27 657 ECD7.

542:

• 68C3 B836B57D389BDC B6C7AB5 72 ECD 2C5B6D A

B583C 5 C1783 BDBB BD758F3;

• 78C4C3 4- 2B53 D23E3D EB893 BFBDC 32367D4CA7,

4DBE 2B5C 43DAB 278C478C9 2C3CAB 7 B3 B3.

,B6 PAM-5 CB893D 5 3D 1000Base-T (Gigabit Ethernet).

2.3.4. 5E9 2452 4595A892

D(55 4&25 2367743B 68 843C

BD3C789 AB6B5 DC7 AMI, NRZI C8C MLT-3 C 727583B 7

8CA5C67C 68C B836B57D389BD3 36CC C8C 83,

2C5B6FC A BDBB BD3C78.

#8 843C BD3C789 AB6B5 CB89D 657 BBE7:

123456 2. 78549AB2 A565CDEEFC2

114

• CEDB4B3 AB6C2B57C3;

• A23E8C2B57C3.

+E7 BBE7 BDBD A 8B1C43AB, 7 3 CC43AB

AB6C2B57C, D7A A7A BC 3 B23638D B2 C178B5.

2.3.4.1. !45657 E5CF526C7

"2C 3$( 4&2 CB6 65BC4 AB6

277D2C573D A7A B5BABD9 C5B8B5, 236D758FC BEB

B836B57D389BD9 3AB89AC ECDB5, A76 C ABDB2 733D

B5 C5B8B, B6327FC EB8933 AB8C43D5B ECD, 43 CB6.

"2C327C 3DB6B5 CEDB4B1B AB6C2B57C 58D 4%/5%

(CB893D 5 *%! Fast Ethernet D7672DB5 100Base- X C 100Base-FX C

5 3DC FDDI), 5%/6% (100VG-AnyLAN), 8%/10% (10GBase-X), 64%/66%

(10GBase-R C 10GBase-W). -A57 «%» 5 757CC AB67 B7473D, 4DB

&833D72 C178 C33D 2 BDBC (BD 718CAB1B binary –

65BC4), 7 C2 A757D, A7AB3 AB8C43D5B ECD B632CD 5 B6B

C5B83 CB6B1B C 2389DC2F31B AB67 BBD53DD53B. % 47DBDC,

3DB6 4%/5% B7473D, 4DB A763 4 ECD7 5 CB6B AB63 73D 5-

ECD7C 5 2389DC2F3 AB63, DB 3D9 43D2ECD3 C5B8

CB6B1B AB67 73D C5B87C, B6327FCC B 5 ECD. #8 &DB1B

CB893D 3C7897 2$6"2 5&54& (D7E8.2.1),

D7758C57F7 BBD53DD5C3 36 CB6C 43D2ECDB5C

C5B87C C 2389DC2FCC DCECDB5C C5B87C.

262 2.1.

*9D45

9EBD6

153F6A8F$5

9EBD6

*9D45

9EBD6

153F6A8F$5

9EBD6

0000 11110 1000 10010

0001 01001 1001 10011

0010 10100 1010 10110

0011 10101 1011 10111

0100 01010 1100 11010

0101 01011 1101 11011

0110 01110 1110 11100

0111 01111 1111 11101

,B8C43D5B 2389DC2FC C5B8B5 EB893 AB8C43D57 CB6

C5B8B5. 7A, 5 AB63 4%/5% 2389DC2FC C5B8B5 B3D ED9 2

=32,

5 DB 523 A7A CB6 C5B8B5 DB89AB 2

=16. "B&DB 236C

2389DC2FC C5B8B5 BB BDBE27D9 16 D7AC, 8EB3 B43D7C3

ABDB2 3 B632CD 68C B836B57D389BD3 83 C8C 36CC (5

63 8473 3 8 C8C 8 36CC). +D7893 16 C5B8B5

277D2C57D A7A 328555, B583C3 ABDB2 B7473D BCEA 5

32367573 67.

123456 2. 78549AB2 A565CDEEFC2

115

5EDB4BD9 AB67 4B/5B BD7583D 25% (1/4 =0,25), BAB89A 7 4

CB27CB ECD7 2CB6CD 1 «8CC» CEDB4 ECD. )DB

B7473D, 4DB 237897 2BA7 BBEBD9 A7787 E63D 7 25%

393 BC789B. #8 BE3343C 767B 2BAB BBEBDC

A7787 32367D4CA 6B83 27EBD7D9  B53B D7ADB5B 47DBDB. %

47DBDC, 68 323674C AB6B5 4%/5% B AB2BD9 100 3ECD/ 32367D4CA

6B83 27EBD7D9  D7ADB5B 47DBDB 125 37. "2C &DB 3AD2 C1787

538C4C573D B 2753C B 8473, AB167 323673D 3 CEDB4

AB6. 3 3 333, 3AD2 CEDB4B1B AB67 393 3AD27

743D32AB1B AB67, 4DB B2756573D CB89B57C3 8B1C43AB1B

AB6C2B57C.

92:

• AB6 D7B5CD 7BC2BCC2FC, D7A A7A 23257D

68C3 B836B57D389BDC 83 C 36CC;

• C4373D BDB7 BD758F7, 7 74CD, 73D 3AD2

C1787;

• B583D 5BBBD9 BE723C BCEBA 7 4D

723F C5B8B5;

• 2BD7 2378C7C 5 5C63 D7E8C 323AB6C2B5AC.

542:

• 3973D B837 2BA7 BBEBD9 A7787 5C, D7A

A7A 47D9 2BAB BBEBDC D27DCD 7 323674 CEDB4 ECD;

• 6BB8CD3893 52333 7D27D 5 87 3DC 7 2378C7C

8B1C43AB1B AB6C2B57C.

% 3DC Fast Ethernet D7672D7 100Base- 4 CB893D 3DB6

8B1C43AB1B AB6C2B57C 8%/6  D23 BDBCC 2389DC2F31B

C1787, 5 ABDB2B 68 AB6C2B57C 8 ECD (%) CB6B1B BBEF3C

CB893D AB6 C 6 D2BC4 ( ) C5B8B5, C3FC 3 BDBC.

,B8C43D5B CEDB4, DB 3D9 723F AB6B5: 3

–2

=729–256=473.

2.3.4.2. 'EF78ACF526C7

!A23E8C2B57C3 BDBCD 5 23BE27B57CC CB6B1B 65BC4B1B

AB67 B 767B 781B2CD, B5B8F3 CA84CD9 68C3

B836B57D389BDC 83 C8C 36CC. 3C43AC3 C8C 2B1273

236D57, 2378CFC3 767 781B2CD, 757D 4E26%32EA69

(scramble – 578A7, E3B26B47 EB2A7). $7 2CB DB2B3

F24E26%32E 5BD7758C573D CB6 65BC4 AB6.

% A743D53 781B2CD7 23BE27B57C B3D 8CD9 BBDB3C3:

= A

⊕ B

i-3

⊕ B

i-5

(i = 1, 2,…),

163 A

, B

– 743C i-1B 27267 BBD53DD53B CB6B1B C

2389DC2F31B AB67; B

i-3

C B

i-5

– 743C BBD53DD53B (i-3)-1B C (i-5)-

1B 27267 2389DC2F31B AB67; ⊕ – B327C CA847F31B 5*5

(8B3C3 B B68 2).

123456 2. 78549AB2 A565CDEEFC2

116

$72C32, 68 CB6B B836B57D389BDC .=110110000001

A23E832 67D 836FC 2389DC2FC AB6:

= A

= 1;

= A

= 1;

= A

= 0;

= A

⊕ B

= 1 ⊕ 1 = 0;

= A

⊕ B

= 1 ⊕ 1 = 0;

= A

⊕ B

= 0 ⊕ 0 ⊕ 1 = 1;

= A

⊕ B

= 0 ⊕ 0 ⊕ 1 = 1;

= A

⊕ B

= 0 ⊕ 0 ⊕ 0 = 0;

= A

⊕ B

= 0 ⊕ 1 ⊕ 0 = 1;

= A

⊕ B

= 0 ⊕ 1 ⊕ 0 = 1;

= A

⊕ B

= 0 ⊕ 0 ⊕ 1 = 1;

= A

⊕ B

= 1 ⊕ 1 ⊕ 1 = 1.

7AC BE27B, 7 5B63 A23E8327 B5CD B836B57D389BD9

%=110001101111, 5 ABDB2B 3D B836B57D389BDC C 3DC 83,

2CDD5B5753 5 CB6B AB63.

#3A23E832 5BD7758C573D CB6 B836B57D389BD9 7

BB57CC BE27DB1B BBDB3C:

= B

⊕ B

i-3

⊕ B

i-5

(i = 1, 2,…).

*31AB E36CD9, 4DB C

= 

'78C43 781B2CD A23E8C2B57C BD8C47D AB8C43D5B

87173, 67FC C2 2389DC2F31B AB67 C 538C4CB 65C17

36 87173C. 7A, 5 3D ISDN 2C 3236743 67 BD 3DC A

7EB3D CB893D 23BE27B57C3 B 65C17C 5 5 C 23 BCCC, 7 2C

3236743 67 BD 7EB3D7 5 3D9 – B 65C17C 18 C 23 BCCC.

9:

• 3 3973D B837 2BA7 BBEBD9 A7787 5C,

BAB89A BDDD5D CEDB43 ECD.

542:

• 6BB8CD3893 7D27D 5 87 3DC 7 2378C7C 781B2CD7

A23E8C2B57C-63A23E8C2B57C;

• 3 53167 67D CA84CD9 68C3 B836B57D389BDC 83 C

36CC.

2.4. 7367 B3BB 259EB

"2C B217C7CC AB9D32 3D3 C2BAB CB89D

A7E3893 8CCC 5C.

A%238AC 3989C C9 (,*!) – 8CC 5C, BDBF7 C A7E38,

A7E389B 727D2 C A7E389 BB23C (D38C, AB8B6,

2723638CD3893 A7, A7E3893 DB8E).

A%23 (BD 1B88. kabel – A77D, D2B) – B5BABD9 1CEAC

CB8C2B57 2B5B6B5, 7A843 5 7FCD (BE4B

1323DC4) BEB8B4A.

123456 2. 78549AB2 A565CDEEFC2

117

+324E9249 (62F8) 4A%23 – A7E389 C &83AD2C43AC

(36) 2B5B6CAB5 (DBAB2B5B6FC C8), 2C33 68 323674C

7 27DBC3 &83AD2C43AB &321CC (96DBD C256) C8C &83AD2C43AC

C178B5 (C256 9B3).

'53545885-59249 4A%23 – A7E389 C BDC43AC 5B8BAB 68

323674C 53DB5B1B BDBA7.

A%23 C9 2367743 68 323674C CB27CC

&83AD2C43ACC C8C BDC43ACC (53DB5C) C1787C.

7AC BE27B, A7E3893 8CCC 5C 638D 7 653 EB89C3

12: &83AD2C43AC3 ()*!) C 5B8BABB-BDC43AC3 (%+*!). C

A7E389 8CC 5C, CB893 5 AB9D32 3D,

236D7583 7 2C.2.33.

2.4.1. !3249 2492 4A"238F2 39899 C9

% 3D 323674C 67 2C3D 836FC3 DC

&83AD2C43AC A7E383 (2C.2.33):

1) 5CD7 727:

• 3&A27C2B577;

• &A27C2B577;

2) AB7AC789 A7E389:

• DB8D (thick);

• DBAC (thin).

2.4.1.1. 36567 (A7E4F5826C467 2F2E47FC34CEC

(A7E4FC73EC E27A7 3!C

+B53 &83AD2B71CD3 727AD32CDCAC &83AD2C43AC A7E383

5C 236D7583 7 2C.2.34.

1. ,A7A892 (459B928 A7A89C) – 393C3 BFBDC

C1787 (BD32 78CD6) 2C 3236743 36 65 DB4A7C:

E2$56*5 D7

+65CA859C5 (+,7) -D6DCDD-DA59C5 (-.,7)

%CD7 727

,B7AC789

A7E389

+6BB6B53 3B1BB6B53

$3&A27C2B577

(UTP)

)A27C2B577

BAC (thin)

B8D (thick)

FTP

STP

2.33

123456 2. 78549AB2 A565CDEEFC2

118

• 583D B6B C BB5 727AD32CDCA, 4CD573 2C

2B3ADC2B57CC )*! C B236383CC 7AC789B 68C A7E38 36

87C;

• 75CCD BD 47DBD 32367573B1B C1787;

• C323D 5 [6-/].

2. *62FA8 (5B8B5B3 B2BDC583C3) – B8B3 (7ADC5B3 C

237ADC5B3) B2BDC583C3 &83AD2C43AB 3C:

• C323D 5 +7 C 583D BDBCD389B BDBB 538C4CB

68 A7E389 CD3 (5 5BABAB2BD 3D 75CCD BD 47DBD);

• 23AC3 C33C C3677 B 68C3 A7E38 B1D 557D9

2B3 5D2331B BD273C, 2C5B6FC3 A 5BCAB53C DB4C

5B8, 2C &DB D7C, B6A8437 5E8CC 87 DB43 5B8, 3

E63D B847D9 7623B573 3 673.

3. 2E24E282 8A5F49 36 5CDC 727C 2 $6)5 "5

(NEXT – Near End Crosstalk) C 2 426*5 "5 (FEXT – Far End

Crosstalk) – 2389D7D CD32323CC &83AD2B71CD C178B5

(2C.2.35):

• 743C NEXT C FEXT 75CD BD 47DBD 32367573B1B

C1787;

• 43 D6%5 2$6.5 743C3 NEXT (FEXT), D3 843, D7A

A7A 75B6AC 5 B36C 2B5B6CA7 E6D 393;

• C323D 5 6- 2C B23638B 47DBD3.

5 2C.2.35 5C6B, 4DB 7 E8C3 AB3 2B5B6CA7 (B BDB3C

A 32367F3 8) 5BAC 2B539 C1787, 32367573B1B BD 87 /

8 /

, 75B6CD 727CD C178 (BA77 ADC2B), CA77FC

CB27CB (B83) C178 5B 5DB2B 2B5B6CA3, B ABDB2B

32367D 673 BD /

A /

. 5 2CA7 D7A3 5C6B, 4DB 7 67893

AB3 727CD C178 5B 5DB2B 2B5B6CA3 74CD389B 393,

BAB89A 5 2389D7D3 7D7C 393 2B539 CB27CBB1B

C1787, 32367573B1B 5 325B 2B5B6CA3 BD /

A /

. ! 4DB DB1B, 4DB

2B539 CB27CBB1B C1787 5B 5DB2B 2B5B6CA3 7 «67893

AB3» C33D 7AC789B3 743C3, BB 6387D9 55B6, 4DB

7536 727CD C178 374CD389B CA7CD CB27CB

C178. +D67 8363D, 4DB NEXT 583D EB833 57B

F5 165& 25 %2&25&

87D7C3

5367

"323A2D3 75B6AC

.ADC5B3 B2BDC583C3

:ABD9

EXT

2.34

123456 2. 78549AB2 A565CDEEFC2

119

727AD32CDCAB, 43 FEXT, D7A A7A 31B 743C3 5 EB893 323

A7573D 7 A743D53 323674C C178B5.

4. )49852 5E5932892 – B2BDC583C3 &83AD2C43AB 3C

BDBB DBA:

• 3 75CCD BD 47DBD C 5B27D73D  538C43C3 68C A7E38;

• C323D 5 +7 7 100 .

5. -645 – 5BD5B 3D788C43AC 2B5B6CAB5 7A78C57D9

&83AD2C43A &321C:

• 583D 3387D389B 538C4CB C 6B87 ED9 CC789B;

• 5BAB3 743C3 ABDC 5 A7E383 2C5B6CD A CA73C C1787

C B127C4C573D B8B 2BA7C 8CCC.

2.4.1.2. C42 D2F2

'9AC AEA (Twisted Pair – TP) – CB8C2B573 2B5B6CAC,

B72B 5CD3 36 BEB CC789B 3BEB6CB3 4C8B 27 7

B236383B BD23A3 68C (2C.2.36,7), 4DB D23E3D 68 393C

323A23D 75B6BA 36 2B5B6CA7C, C 7A843 5

CB8C2F BEB8B4A.

%CD7 727 – 7 272BD273

5C6 A7E38 5 D383BCC. !A24C57C3

2C33D  389 FE5%5 36F5

 DB%5 DE5D325D9A A7E38.

$3AB89AB 5CD 72 (BE4B 4 C8C

8), 7A843 5 BEF 87DCAB5

BEB8B4A, BE27D 2$56* (2C.2.36,E).

!F3D53D 3AB89AB A7D31B2C 824EA89E5A885 95 AE

(Unshielded Twisted Pair – UTP), 2C4 43 53 A7D31B2C A7E38, D3

EB893 31B B8B7 2BA7C.

,7E38C 1- C 2- A7D31B2C CB89D 68 323674C 234C C

67 7 CAC AB2BD C 3 5A843 5 D7672D 68 323674C

67 5 AB9D32 3D.

!D7672D EIA/TIA-568, 2727EBD7 American National Standards

Institute (ANSI, !6.) B236383D 3CCA7CC 68 3-, 4- C 5-

A7D31B2C UTP C B2C23D 836FC3 727AD32CDCAC:

• AB&CC3D 7D7C,

FEXT

2.35

-8CC AB3

#789C AB3

2.36

123456 2. 78549AB2 A565CDEEFC2

120

• 5B8B5B3 B2BDC583C3,

• 3ABD9,

• 323B6B3 7D7C3 7 E8C3 AB3 C 62.

$72C32, 68 A7E38 5- A7D31B2CC B236383 836FC3

727AD32CDCAC:

• 7D7C3 – 3 EB833 23,6 6- 7 100  (0,236 6-/) 2C 47DBD3

100 37;

• 5B8B5B3 B2BDC583C3 – 3 EB833 100 ++-15%;

• NEXT – 3 333 27 6- 2C 47DBD3 100 37;

• 7ADC5B3 B2BDC583C3 – 3 EB833 9,4 + 7 100 ;

• 3ABD9 3 EB833 5,6 0 7 100 .

+4EA89E5A88AC 9AC AEA – A7E389, B6327FC B6 C8C

3AB89AB 72 A243 36 2B5B6B5, 7A843 5

CB8C2F BEB8B4A. !72C A7E389 BA2D &A27C2F3 B83DAB

C 3F3 B6B CB8C2F3 BEB8B4AB, 7 4D 431B 393 C8473D C

843 7FCF BD &83AD2B71CD B3, 43 3&A27C2B577 5CD7

727. "2C33D 5 3D Token Ring.

)A27C2B577 5CD7 727 B6276383D 7 653 27B5C6BDC:

•  &A27C2B57C3 A76B 72 C BEFC &A27B (Shielded Twisted

Pair – STP);

•  B6C BEFC &A27B (Foiled Twisted Pair – FTP).

#8 5BABAB2BD 3D3 2727EBD7 3F3 653 A7D31B2CC

36B1B A7E38:

• A7D31B2C 6 – BE334C573D 27EBD 7 47DBD3 250 37 C B3D

ED9 2378CB577 A7A &A27C2B57, D7A C 3&A27C2B57 A7E389;

• A7D31B2C 7 – BE334C573D 27EBD 7 47DBD3 6B 600 37 C

CB893D &A27C2B57C3 A76B 72 A7E38 C BEFC &A27.

% D7E8.2.2 2C5363 743C B8B 2BA7C 68 27

A7D31B2C B5233 36 A7E383.

$7CEB833 C2BAB 5 7DBF33 523 5 8BA789 3D 2C33D

&83AD2C43AC A7E389 A7D31B2CC 5.

262 2.2

,7D31B2C A7E38 "B8B7 2BA7C, 37

3 16

4 20

5 100

6 250

7 600

2.4.1.3. &52E3C2AB6 E27AB

5A49A38 4A%23 (BD 87D. co – B53DB C axis – B9) – A7E389, 5

ABDB2B 2B5B6CAC 236D758D BEB 2 BB 3D788C43AC

C8C627, 276383 6C&83AD2CAB. ,B7AC789 A7E389 CB893D

68 323674C 5BAB47DBD C178B5 (6B 3AB89AC 77) C

727AD32C3D 5BAB B3B7FCF3BD9 C 78 7D7C3