Алиев Т.И. Сети ЭВМ и телекоммуникации

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123456 2. 78549AB2 A565CDEEFC2

151

' 85EF59AB2E C2B5 .* 3236 778B1B5C BDBD:

• 831ABD9 89DC83AC2B57C 3AB89AC 271B5B2 A778B5

B 2CC 5233B1B 8BD3C;

• 2BDBD7 AB6C2B57C;

• B53 5BBBDC 7EB3DAB C178C7CC.

254D9A2AC2E C2B5B 323674C 58D:

• CA73C 2C 23BE27B57CC 23435 C178B5 5 C2B5B 5C6;

• EB833 3DAC3 D23EB57C A B8B3 2BA7C;

• 2BE83  &B C-7 538C43C 76323A.

2.6.3. 5268AC C

2.6.3.1. FC6CD 5F26C!2CC 857865 3!C

33DB6 323674C 67 B D383B A7787  CB89B57C3

B63B5 767D 5 5C63 &5 542", (242&) 32CC V.

3B63 6B8 BE334C57D9 7FCD 32367573 67 BD

BCEBA, 5BCA7FC 5 A7787 5C C 5 7727D23 323674C 67,

D3 ABD2B8 C AB223ACC BCEBA.

5EE24B9C 519%54 (error correction) – BD6383C3 B83B1B C1787

BD B5 C C27583C3 5BCA7FC 5 2B33 5C BCEBA.

#8 ABD2B8 C AB223ACC BCEBA 2C 3236743 67

CB89D &6 &6# 0$, 5 47DBDC, 2BDBAB8

3D35B1B BE37 MNP (Microcom Network Protool), ABDB2 D78 47D9

9A2428A2 CD885C D%DC V.42.

3B63 2C 3236743 67 CB89D 781B2CD 7DC

67, 4DB B573D AB2BD9 BE37 C 3973D 523 323674C.

D3A92 FA88 (data compression) – AB6C2B57C3 CB27CC 

389 393C 3 BE97.

"2C 3236743 67 B D383BB A778 CB89D 236D57

68 2BADE2A59CD F2CDBC-8292CDBC 42.

!D7672D TAPI (Telephony Application Programming Interface) –

BC573D 57CB63D5C3 ",  D383BB 8CC3 C B5B83D

CD312C2B57D9 5 2C8B3C 68 ", BE27F3C A 817 D383BB

5C: BD 2BDB1B 7EB27 B327 6B E8BAC2B5AC 5BAB5, 32376237CC

5B5B5 C AB3235C.

$7 2C.2.64 3234C83 BB53 ACC B63B 5C,

B28C2B573 5 23AB367C 32CC V.

2.6.3.2. $57867 34262F4

3B633 D7672D 32CC V B 3236743 67 B D383B

8CC B23638D (2C.2.65):

1) 7743C3;

2) DC A7787 5C;

3) 5C6 B68CC;

4) AB2BD9 323674C.

123456 2. 78549AB2 A565CDEEFC2

152

2.6.3.3. &A233CCE2C 85785

$7 2C.2.66 236D75837 A87CCA7C B63B5 B:

• ACB789B 7743C;

• ABD2ADC5B CB83C;

• BBE 323674C 67;

• BBE 2378C7CC 2BDBAB8B5.

1. "B '!"26* ! 232(5. B63 638D 7:

7) D383B3;

E) D3831273;

5) BDB53 (276CBB63);

1) 7A-B63;

6) C2565, 23677433 68 323674C 67 B A7E389

8CC 5C, 5 47DBDC B 3DC A7E389B1B D3835C63C B AB2BD9

6B 10 3ECD/

2. "B &! ! 65. B63 B1D ED9:

• 53C3, B6A84733 A7E383 A 2793 RS-232

32B789B1B AB9D327;

• 5D23C3 – 5 5C63 87D, D7758C573B 5D2C AB9D327.

+!" 45 , #3 (&5 542" 5& V)

3B68C C 63B68C

87FCD7 BD BCEBA

!7DC3 67

"B6632A7 D383BCC:

75DBBD53D4CA, 1B8BB57

B4D7, 7A-8E7, .+$

2.64

3B633 D7672D

$7743C

C ,!

%C6 B68CC

!AB2BD9

683A7 3236747

B8683A7

3236747

3236747 7AB5

ABDC23

56383

47DBD7

7B57

78CD67

78CD6B

7B57

300 (V.21),

1 200, 2 400,

4 800, 7 200,

9 600, 12 000,

14 400, ...,

28 800, 33 600,

C D.6.

6B 56 AECD/.

2.65

123456 2. 78549AB2 A565CDEEFC2

153

3. "B $! 5&542( 42% (2CC 27EBD 5 8CCC) B638C

638D 7:

7) 98D5, CB89FC3 C2B BBE 323674C 67,

2C ABDB2B A76 ECD B873D 4323 CAC2B57 CD32578

5233C  CB89B57C3 C2BC7CC 2C3B1B C 32367F31B

D2BD57; C2BC7C BE334C573D D3 323674C 2758F3

CB27CC C CB89B57C 5 BEBC D2BD57 D7ADB5 13327DB2B5;

C2B 23C 383BBE27B 2C3D9 2C B217C7CC 5C B

DC "DB4A7-DB4A7" 4323 563833 A778 5C;

E) 298D5, CB89FC3 7C2B BBE 323674C

67, 2C ABDB2B A76 C5B8 (233 8B5B C8C 3EB89B E8BA)

B873D BD6389B C 36 67C B1D ED9 2BC5B893

2B3DAC 5233C; 68 27B757C BD7FC 67 A76

32367 &833D B632CD D72DB5 C DBB5 ECD; &DBD BBE

C53D3 D7A3 A7A D72D-DBB57 3236747; B63 27EBD73D 5

7C2BB 23C3 2C CB89B57CC ABDC23 A778B5 5C;

4. "B $! &52632" &6 AB223ACC BCEBA C 7DC

67 B63 E57D:

•  7727DB 2378C7C3;

•  2B127B 2378C7C3.

2.6.4. 95F2 29  982EA38F6 5"37+9A8926 (ISDN-

28535E9C)

3B637 3236747 AB9D32 67 B 7EB3DAC 8CC

D383B 3D3 B5B83D 5 C63789 8B5C (7 DC 323674C

C3D DB89AB C2B53 . ! C 53 A778 5C 5BAB1B A743D57)

6BDC49 236389B AB2BDC 5 56 AECD/, 4DB 5B 3 6BD7DB4B 68

E62'2"# 45 

"B ACB789B 7743C

383B3

3831273

!BDB53

(276CBB63)

,7E3893

07A

B63

"B ABD2ADC5B CB83C

53C3

5D23C3

"B BBE 323674C 67

"B BBE

2378C7CC

2BDBAB8B5

C2B3

7C2B3

2B1273

7727D3

2.66

123456 2. 78549AB2 A565CDEEFC2

154

323674C 89DC36C 67, 5 47DBDC 5C63B, B AB89-CE69

2C383 A743D5B. #8 BE3343C EB833 5BAC AB2BD3

323674C 67 B .* E87 2727EBD77 D3B8B1C, B84C57

757C3 ISDN.

29E52 29  982EA386 5%3739A8926 – 2D*.

(Integrated Services Digital Networks – ISDN) – C2B57 3D9, BD2B37

7 E73 D383BB 3DC 5C, 5 ABDB2B B1D 3236757D9 BBEF3C

27 5C6B5 – 673, 7 D7A3 BC2B573 5C63BCBE273C C 2349.

+E47 D383B7 59 B2C3DC2B577 7 323674 1B8B7 C

B5B83D B637 BE3C57D9 67C B AB2BD9 3 53

56 AECD/. ISDN 2727EBD77 3C789B 68 DB1B, 4DBE BEBDC

B127C43C3 B AB2BDC 323674C 67, B B27CD9 B53DCBD9 

F3D5FCC D383BC 3DC.

!3D9 ISDN B53DC7 "532 5C"  D383BC 3DC: BB

B5BCD9  BE4B1B D383B7 7 B32 ISDN C 5 BE27DB 727583CC

5 23C3 "1B8BB57 59", 7 3236747 67 B AB2BD9 64 AECD/ C

53 5BB7 DB89AB 36 65 D32C787C ISDN.

!F3D537 BBE3BD9 ISDN – &DB 68554A8A385, D.3.

5BBBD9 3236757D9 673 C 2349 B6B5233B. "BAB89A 5

CD3233 ISDN 236BD23 83E A778, 23C 323674C B3D

ED9 C33 E3 27257 B36C3C.

ISDN B 2753C  BE4B B63B 59 BE334C573D:

• EB833 5BA AB2BD9 323674C 67;

• EB833 5BA 763BD9;

• 2CCC789B CB3 A743D5B 57CB63D5C 36 7EB3D7C.

-&5 !/52 3D3 ISDN:

1) 9DC8255 B85E5 F9A2DB65 9D545 7 43D

CB89B57C 56383B1B A7787 C178C7CC C 323674C B 3

C178B5 27583C C 57CB63D5C (7DC3 8CCC, 7EB2 B327,

BD53D, 27936C3C3 C D.6.) 5 C2B5B 5C63;

2) FB58926D9A 9D63DB2 6 – 5BBBD9

BF3D58D9 B B6C C D3 3 8CC A7A D383B3 3231B5B2, D7A

C 323674 67;

3) 9D8!55 96F! – 5BBBD9 B217C7CC D383D3AD7,

D383A7 C8C D3837A7  BBD53DD5FC D2BD5B 5 8EB DB4A3

3B1B 727.

ISDN B6B5233B 236BD7583D 278C43 5C6 5C:

• D383B;

• B63;

• B 56383B A778 5C.

ISDN 383BBE27B 2C3D9 5 D3 847, AB167 3BEB6CB

58D459C (B 3 BDBB) 3236757D9 98545  D6%5 D05E

42 7 6$5 8299AD  B9DCD 9CD8D9A$ C 245!D9A$.

'378C7C ISDN BF3D583D 5 BBD53DD5CC  23AB367CC

ITU-T 32CC I.

123456 2. 78549AB2 A565CDEEFC2

155

C$55 $&!425  5&'5, ISDN BA77 7

2C.2.67, 163:

41 – D32C789B3 BEB26B57C3 ISDN;

42 – 3B53DCB3  ISDN D32C789B3 BEB26B57C3;

. – D32C789 767D32;

NT1 – 3D35B3 BAB47C3 2B5 1 (B6747 CD7C A 7EB3DAB

D7B5A3, BE3343C3 + 8CCC C ABD2B8 27EB4C 727AD32CDCA,

C2BC7C, 89DC83AC2B57C3 7 1- (CC43AB) 2B53,

27233C3 AB8CADB5 6BD7); 236D7583D BEB BE4B 7D3

AB2BEA;

NT2 – 3D35B3 BAB47C3 2B5 2 (ACC 2-1B C 3-1B 2B53:

89DC83AC2B57C3, ABD7C C AB3D27C, 7 D7A3 ACC + C

3ABDB23 ACC 1-1B 2B5); 5 A743D53 ACB789B1B E8BA7 NT2

B1D 5D7D9 /. !, 8BA7897 3D9 C8C D32C789 767D32;

(ACC NT1 C NT2 B1D BE936CD9 5 36CB CC43AB

BEB26B57CC, BEB7473B 2BDB NT);

LT – 8C3B3 BAB47C3;

4 – D7CBB3 BAB47C3.

R, S, T, U, V – CD323 ISDN, 5 47DBDC R-CD323 5573D

3B53DCB3  ISDN BEB26B57C3 T42  ..

% BD8C4C3 BD D276CCB D383B 3D3 2758F7

CB27C 32367D B 3C789 A7787, 3 7127 A778

323674C 67.

% ISDN 278C47D 657 DC7 A7787:

• 4A8A3 B – 68 323674C 1B8B7 C 67  2BAB

BBEBD9 64 AECD/;

• 4A8A3 D – 83E (C1789) A778 323674C 2758F3

CB27CC. +6C A778 DC7 D BE8C573D 2 C8C 30 B-A778B5 C

BE334C573D 5BBBD9 ED2B 13327CC C E2B7 5B5B5, 7 D7A3

323674 CB27CC B BD7FC 5B57, 5 DB 4C83 B B323

BE27F7F31B A 3DC 7EB3D7.

!D7672D B23638D 3 5&'5,2 4!2  ISDN (DC7 ISDN):

1) E7B5 – BRI;

(C2B57 2-

2B5B67 .*

ISDN 192 AECD/

2.67

123456 2. 78549AB2 A565CDEEFC2

156

2) 325C4 – PRI;

3) C2BABB8B – B-ISDN.

*82E2 BRI (Basic Rate Interface) – D7672D (E7B5)

CD323, BEB7473 A7A (2B+D). )DB B7473D, 4DB 68 323674C

67 CB893D 2 A7787 B B AB2BD9 323674C 64 AECD/ B

A76B A778 C 1 83E (C1789) A778 D B AB2BD9

323674C 16 AECD/. 7AC BE27B, 2BA7 BBEBD9 CD3237

BRI 2757: 2*64 AECD/+1*16 AECD/ = 144 AECD/.

BRI 2367743 68 B6A843C D383BB 7727D2

(D383BB5, 7AB5, 75DBBD53D4CAB5 C D..) C AB9D32B5 A ISDN.

*82E2 PRI (Primary Rate Interface) BE936C3D 3AB89AB BRI C

B36C3D  8B. % 75CCBDC BD ABA23D 3D D7672DB5 B

5A8473D 5 3E 23 B-A7787 (!6. C ;BC) C8C 30 B-A778B5 (452B7),

B6632C57 CD3127893 AB2BDC 323674C 67 1,544 3ECD/ C

2,048 3ECD/ BBD53DD53B.

B-ISDN (Broadband ISDN) BE334C573D 5BAC3 AB2BDC 323674C

(155 3ECD/ C 622 3ECD/), 4DB B5B83D 2378CB57D9 323674

5C63B67.

2.6.5. 128535E99 xDSL

xDSL (Digital Subscriber Line) – 2853599 323674C C2B5

67 D A565DE C2262E 5C, BE334C57FC3 1B276B EB833

5BAC3 AB2BDC 323674C B BE4 36 2B5B67, 43

D276CCB7 B637 59 C ISDN. %BAC3 AB2BDC 6BDC17D 7

43D CB89B57C 267 D3C43AC 233C, 5 47DBDC &3ADC5

8C3 AB6B5 C 767DC5 3DB6B5 AB223ACC CA73C 7 8CCC.

xDSL BE936C3D 278C43 D3B8B1CC (2C.2.68), ABDB2 5

7EE235C7D23 xDSL BBD53DD5D 273 743C C5B87 «». )DC

D3B8B1CC 278C47D 5 BB5B B CB893B BBE B68CC

C AB2BDC 323674C 67.

HDSL (High-data-rate DSL) – 5BABAB2BD7 C2B57

7EB3DA7 8CC, BE334C57F7 C3D2C4 683A 323674

3B8B1CC xDSL

HDSL

(High-data-

rate DSL)

!=2,048 3ECD/

SDSL

(Single

line DSL)

RADSL

(Rate

Adaptive DSL)

VDSL

(Very-high-data-rate DSL)

7 = 6B 52 3ECD/

ADSL

(Asymmetrical DSL)

= 6B 3,5 3ECD/

=6B 24 3ECD/

2.68

123456 2. 78549AB2 A565CDEEFC2

157

67 B 65 D383B 727 B AB2BDC 6B 2,048 3ECD/ 5

A76B 727583CC 7 27DBC3 6B 4,5 A.

SDSL (Symmetrical DSL) – B6B727 532C HDSL,

BE334C57F7 C3D2C4 683A 323674 C2B5B1B BDBA7

B AB2BD9 2048 AECD/ B B6B 723 D383BB1B A7E38.

ADSL (Asymmetrical DSL) – 7C3D2C47 C2B57 7EB3DA7

8CC, B5B8F7 B B6B 723 D383BB1B A7E38 3236757D9 673

BD B89B57D38 5 3D9 7 AB2BD BD 16 AECD/ 6B 3,5 3ECD/ C 5

BE27DB 727583CC C 3DC A B89B57D38 B AB2BDC 6B 24 3ECD/

7 7AC789B3 27DBC3 6B 5,5 A.

RADSL (Rate-Adaptive ADSL) – ADSL  767DC23B AB2BD9,

4CD57F3 727AD32CDCAC ABA23DB 8CCC (68C7, BBDB3C3

C178- C D..), 7 43D 431B 6BDC173D 7AC7897 2BA7

BBEBD9 5 23789 8B5C.

VDSL (Very-high-data-rate DSL) – 5325BABAB2BD7

C2B57 7EB3DA7 8CC, C3F7 B 2753C  ADSL 74CD389B

EB833 5BAC3 AB2BDC 323674C 67: 6B 56 3ECD/ 5 727583CC BD

3DC A B89B57D38 C 6B 11 3ECD/ BD B89B57D38 A 3DC 2C 27EBD3 5

7C3D2C4B 23C3 C 2C 27EBD3 5 C3D2C4B 23C3 – 2C32B

26 3ECD/ 5 A76B 727583CC 2C 7AC789B 27DBCC 6B 1,3 A.

$7CEB833 272BD27B D3B8B1C3 583D ADSL, BB53

2CC B217C7CC ABDB2B 277D2C57D C3.

/538C43C3 AB2BDC 323674C 67 5 ADSL BE8B583B

236BD7583C3 B89B57D38 EB893 B8B 2BA7C 7EB3DAB

8CCC, 43 2C D276CCBB D383BB 5C: 1 37 53DB 3100 7.

)DB 6BDC173D 7 4D CA843C 7 DC 323674C 67 C89D2B5,

B127C4C57FC B8B D383BB1B A7787 5 CD325783 BD 300 7 6B

3400 7.

% 236387 B8B 5 1 37 B2C23D 3 47DBD 6C77B7 68

323674C D2 BDBAB5 67 (2C.2.69):

• D383B (1B8BB5) 5 6C77B3 47DBD BD 300 7 6B 4 A7;

• AB9D32 BD B89B57D38 5 3D9 5 6C77B3 47DBD BD 4 A7

6B 200 A7;

• BD 3DC A B89B57D38 5 6C77B3 47DBD BD 200 A7 6B 1 37.

4 A7

200 A7

1 37

2.69

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158

7AC BE27B, 68 323674C C2B5 67 B2C2D 657

2 5&(% 47DBD A778B5:

• 5BABAB2BDB (6B 24 3ECD/) CB6FC A778 323674C

67 C 3DC 5 AB9D32 B89B57D38;

• CABAB2BDB (BD 16 AECD/ 6B 3,5 3ECD/) 5BB6FC A778

323674C 67 C AB9D327 5 3D9.

23DC A778 2367743 68 323674C D383B 271B5B2B5.

.C3D2C4BD9 A778B5 68 323674C AB9D32 67

BE8B5837 D3, 4DB D276CCBB BE9 32367573 67 BD

B89B57D38 5 3D9 1B276B 393 BE97 67, 32367573 5

BE27DB 727583CC. +D3DC, 4DB 2C 3BEB6CBDC BB C3D9

127C 47DBD 6C77BB5 68 32327236383C AB2BD3 323674C

67 5 CB6F3 C 5BB6F3 A7787.

$7 2C.2.70 236D75837 37 B217C7CC ADSL.

+EB26B57C3 B89B57D38 (D383B C AB9D32 7 33)

B6A8473D A DB4A3 6BD7 – 82985456A56$ '

, 5638F3

B23638 B8B 47DBD 68 323674C 1B8BB5 C178B5 BD

778B1B5B1B D383B7 C 67 BD AB9D327. ,B9D32 B6A8473D

A 2723638CD38 4323 .DSL-B63 (3), BF3D58F31B B68C,

DB 3D9 23BE27B57C3 C1787 C C2B5B1B 5C67 5 778B1B5. $7

621B AB3 A 2723638CD38 '

, BD638F3 BDBAC AB9D32

67 BD 1B8BB5 C178B5, B6A843 A565D CDEEFA2AD8

( ,), BE334C57FC 6BD 5 D383B 3D9 BEF31B B89B57C

( +"), C EF6A65C9D8 4D9AF2 C 8DBD 2D5A9CD 6

(DSLAM – DSL Access Multiplexer), ABDB2 23BE273D C178 C

778B1B5B1B 5C67 5 C2B5B 5C6 (63B68C) C 727583D 31B A

722DC7DB2, BE334C57F3 6BD 5 5D323D. ,B8C43D5B N

.DSL-B63B5 3

,…,3

, 5B6FC 5 BD75 DSLAM, B236383D

AB8C43D5B B89B57D383, ABDB23 B1D ED9 B6A843 A DSLAM.

%BAC3 AB2BDC 323674C 67 C 275CD389B 35BA7

DBCBD9 7EB3DAB 87D 68 B89B57D383 6387D D3B8B1CC xDSL

7CEB833 323ADC5C 68 B217C7CC 6BD7 5 5D323D,

B8BD9 5D3FCC D276CCB B63 59 C ISDN.

,

+"

DSLAM

5D323D

...

2.70

3

…

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2.72

2.6.6. 5"938AC 232588AC C

3BEC897 D383B7 59 BDBCD A 236D57 E32B5B6B

5C C B3D ED9 65 DCB5:

• 6B7C3 824DA565D;

• BEC893 9DADB5 A565D.

124565' BE334C57D B127C43 BEC89BD9 5

236387 B6B1B C8C 3AB89AC 26B 27B8B3 B3F3C C

BDBD C E7B5B D7CC C B6B C8C 3AB89AC 323B D2EBA.

874CD389B ED89, 27ADC43AC 3B127C43, BEC89BD9

BE334C573D $6*2# 2# #3*, ABDB27 5 7DBF33 523

B5B83D 3236757D9, A2B3 1B8B7, C2B53 673 C 673 5C63B.

2.6.6.1. FC6CD 5F26C!2CC 35455 3!C

+B5B 2CC BDB5B 5C 7A8473D 5 276383CC 53

B B57D7 D383BB 59 7 43AC, 75733 BD7C. % 3D23

A76B BD 7B6CD E7B57 D7C (-!), B6632C57F7 59 

BEC89C 7EB3D7C (BDB5C D383B7C), 7B6FCC 5 B3 3

B57D7. -7B53 D7CC BE4B 27B8717D 7 A27 67C C

3C789 5A7. $7 C63789B (2B5B C E3 7D2BAC) B532BDC

B7 BA2DC B6B -! 236D7583D BEB A21 (2C.2.71,7), 6C73D2

ABDB2B1B 3 23573D 10-20 A. !BD 47DC4B 323A257D C 53D3

BE27D 3D9 (2C.2.71,E), ABDB27 68 2BDBD BE4B CBE2773D 5

5C63 B3D57 3DC1B89 BD (2C.2.71,5).

,767 BD7 27EBD73D 7 5BC 47DBD7, 3 3233A7FC 

B36CC (2C.2.72). %3 BD B6B1B 27327 C BE936C3 5 12 B

7 BD. ,767 C EA5 (A, B, C, D, E, F, G) BBD53DD53D B23638B

6C77B 47DBD, CB893B 5 236387 B6B BD. !BD 

B6C7AB5C 6C77B7C 47DBD

276383 BD7C, 27EBD7FCC 7 621C

47DBD7. $3EB89C3 2732 BD BE33-

4C57D 26 23CF3D5 B 2753C 

D276CCBB 73B E32B5B6B

59, 7 C3B:

• EB89B3 AB8C43D5B B89B57D383,

ABDB23 B6B5233B B1D 27EBD7D9 5

3DC 5 27 47DBD 6C77B7 (5

2.71

123456 2. 78549AB2 A565CDEEFC2

160

MSC

+"

2.75

-7B57 D7C (-!)

2.74

27 BD7);

• 3EB897 BFBD9 2C3B-32367F31B BEB26B57C,

BE8B5837 3EB89C 2732B BD (5B67 BFBD9 D383B

D2EBA BD7583D 63D3 6B8C 57DD);

• 397 DBCBD9 D2BD5 BDB5B 5C A7A 78BBF

D2BD5.

48C 5 A7AB-DB BD3 AB8C43D5B B89B57D383 BA7573D

8CAB EB89C, DB B7 B3D ED9 27ECD7 7 BD 3931B 27327,

75733 CA2BBD7C, A7A &DB BA77B 7 2C.2.73.

-7B57 D7C, 5 BEF3 8473, B632CD 2CB32367D4CA (""),

B6632C57FC 59  BEC89C D383B7C, C AB9D32,

2378CFC 2BDBAB8 E32B5B6B BEC89B 5C (2C.2.74).

% 3EB89C 3D 53 E7B53 D7CC B36C3  ABD7DB2B

MSC (Mobile Switching Center – BEC89 ABD7CB 3D2) C

C3D 5B6 5 D383B 3D9 BEF31B B89B57C ( +"),

BE334C57FC 59 BEC89

D383BB5 B D7CB72C (2C.2.75).

% EB89C 3D ABD7DB2 1-1B

2B5 (MSC) B36CD 

ABD7DB2B 2-1B 2B5 (2C.2.76) C

D.6., 2C &DB 53 MSC C3D 5B6 5

+" 72, 8CEB 4323 ABD7DB2

EB833 5BAB1B 2B5 (.2C.2.76).

!573 D7AC BE27B E7B53

D7CC C ABD7DB2 BE27D 95A

9DADBD 9B3, 76CCD27DC5B B64CFC3 B6B B327DB2,

236BD758F3 81C BEC89B 5C.

-7B53 D7CC B53DB  ABD7CB BEB26B57C3

2378CD ACC B B236383C D3AF31B 3DBB8B3C

B65C B89B57D383 C BE334C57D 32325BD9 5C 2C

3233F3CC B89B57D383 C B 63D5C B6B -! 5 B 63D5C

621B -!. "2C 5A843CC BDB5 D383B CF3D C178 E7B5B D7CC

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2.73