Cabling Standard - TIA 568 B.2 - Addendum 10 - Draft 4.0

SP-3-4426-AD10-B
To be published as ANSI/TIA/EIA-568-B.2-10

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SP-3-4426-AD10-B
To be published as ANSI/TIA/EIA-568-B.2-10
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SP-3-4426-AD10-B, draft 4.0 (to be published as ANSI/TIA/EIA-568-B.2-10) 04/06/06

i
TRANSMISSION PERFORMANCE SPECIFICATIONS
1
FOR
2
4-PAIR 100 Ω AUGMENTED CATEGORY 6 CABLING
3
4
TABLE OF CONTENTS
5
6
1

INTRODUCTION.....................................................................................................................1

7
2

PURPOSE AND SCOPE.........................................................................................................1

8
3

NORMATIVE REFERENCES .................................................................................................2

9
4

DEFINITIONS, ACRONYMS & ABBREVIATIONS .................................................................2

10
4.1

Definitions ......................................................................................................................... 2

11
4.2

Acronyms and abbreviations............................................................................................. 3

12
5

TEST CONFIGURATIONS......................................................................................................4

13
6

CABLING AND COMPONENTS .............................................................................................5

14
6.1

Recognized cable ............................................................................................................. 5

15
6.2

Recognized connecting hardware .................................................................................... 5

16
6.3

Cords................................................................................................................................. 5

17
7

TRANSMISSION REQUIREMENTS.......................................................................................6

18
7.1

Insertion loss ..................................................................................................................... 6

19
7.1.1

Cable insertion loss ................................................................................................... 6

20
7.1.2

Connecting hardware insertion loss .......................................................................... 7

21
7.1.3

Cabling insertion loss................................................................................................. 8

22
7.1.3.1

Channel insertion loss ........................................................................................ 8

23
7.1.3.2

Permanent link insertion loss ............................................................................. 9

24
7.2

NEXT loss and PSNEXT loss ......................................................................................... 10

25
7.2.1

NEXT loss ................................................................................................................ 10

26
7.2.1.1

Cable NEXT loss .............................................................................................. 10

27
7.2.1.2

Connecting hardware NEXT loss ..................................................................... 11

28
7.2.1.3

Work area, equipment, and patch cord NEXT loss .......................................... 12

29
7.2.1.4

Channel NEXT loss .......................................................................................... 14

30
7.2.1.5

Permanent link NEXT loss................................................................................ 15

31
7.2.2

PSNEXT loss ........................................................................................................... 16

32
7.2.2.1

Cable PSNEXT loss ......................................................................................... 16

33
7.2.2.2

Channel PSNEXT loss ..................................................................................... 17

34
7.2.2.3

Permanent link PSNEXT loss........................................................................... 18

35
7.3

ELFEXT, FEXT loss, and PSELFEXT ............................................................................ 19

36
7.3.1

ELFEXT ................................................................................................................... 19

37
7.3.1.1

Cable ELFEXT.................................................................................................. 19

38
7.3.1.2

Channel ELFEXT.............................................................................................. 20

39
7.3.1.3

Permanent link ELFEXT ................................................................................... 21

40
7.3.2

FEXT loss ................................................................................................................ 22

41
7.3.2.1

Connecting hardware FEXT loss...................................................................... 22

42
7.3.3

PSELFEXT............................................................................................................... 23

43
7.3.3.1

Cable PSELFEXT............................................................................................. 23

44
7.3.3.2

Channel PSELFEXT......................................................................................... 24

45
7.3.3.3

Permanent link PSELFEXT .............................................................................. 25

46
7.4

Return loss ...................................................................................................................... 26

47
7.4.1

Horizontal cable return loss ..................................................................................... 26

48
7.4.2

Cord cable return loss.............................................................................................. 27

49
04/06/06 SP-3-4426-AD10-B, draft 4.0 (to be published as ANSI/TIA/EIA-568-B.2-10)
ii
7.4.3

Connecting hardware return loss............................................................................. 28

1
7.4.4

Work area, equipment, and patch cord return loss ................................................. 29

2
7.4.5

Cabling return loss................................................................................................... 30

3
7.4.5.1

Channel return loss .......................................................................................... 30

4
7.4.5.2

Permanent link return loss................................................................................ 31

5
7.5

Propagation delay/delay skew ........................................................................................ 32

6
7.5.1

Cable propagation delay.......................................................................................... 32

7
7.5.2

Cabling propagation delay ....................................................................................... 33

8
7.5.3

Cable propagation delay skew ................................................................................ 33

9
7.5.4

Cabling propagation delay skew.............................................................................. 33

10
7.6

Balance ........................................................................................................................... 33

11
7.6.1

Transverse conversion loss (TCL)........................................................................... 33

12
7.6.1.1

Cable TCL......................................................................................................... 34

13
7.6.1.2

Connecting hardware TCL ............................................................................... 35

14
7.6.1.3

Channel TCL..................................................................................................... 36

15
7.6.2

ELTCTL and TCTL .................................................................................................. 37

16
7.6.2.1

Cable ELTCTL.................................................................................................. 37

17
7.6.2.2

Connecting hardware TCTL ............................................................................. 38

18
7.6.2.3

Channel ELTCTL.............................................................................................. 39

19
7.7

DC resistance unbalance (TBD) ..................................................................................... 39

20
7.7.1

Cable DC resistance unbalance .............................................................................. 39

21
7.7.2

Connecting hardware DC resistance unbalance ..................................................... 39

22
7.7.3

Channel DC resistance unbalance .......................................................................... 39

23
7.8

ANEXT loss and PSANEXT loss .................................................................................... 40

24
7.8.1

Cable PSANEXT loss .............................................................................................. 40

25
7.8.2

Connecting hardware PSANEXT loss ..................................................................... 41

26
7.8.3

Channel PSANEXT loss .......................................................................................... 42

27
7.8.4

Permanent link PSANEXT loss................................................................................ 43

28
7.9

Average ANEXT loss and PSANEXT loss...................................................................... 44

29
7.9.1

Average channel PSANEXT loss............................................................................. 44

30
7.10

AFEXT loss, AELFEXT, and PSAACRF ....................................................................... 45

31
7.10.1

Cable PSAACRF...................................................................................................... 46

32
7.10.2

Connecting hardware PSAFEXT loss...................................................................... 47

33
7.10.3

Channel PSAACRF ................................................................................................. 48

34
7.10.4

Permanent link PSAACRF....................................................................................... 49

35
7.11

Average AELFEXT and PSAACRF............................................................................... 50

36
7.11.1

Average channel PSAACRF.................................................................................... 50

37
Annex A Cabling measurement requirements (normative) ..........................................................51

38
A.1

General ........................................................................................................................... 51

39
A.2

Test setup and apparatus required................................................................................. 51

40
Annex B Cable ANEXT loss and AFEXT loss reference test procedure (normative) ..................53

41
B.1

Purpose........................................................................................................................... 53

42
B.2

Equipment .......................................................................................................................53

43
B.3

Procedure........................................................................................................................ 53

44
B.4

Results ............................................................................................................................ 53

45
Annex C Connecting hardware ANEXT loss and AFEXT loss reference test procedure 46
(normative)....................................................................................................................................54

47
C.1

Purpose........................................................................................................................... 54

48
SP-3-4426-AD10-B, draft 4.0 (to be published as ANSI/TIA/EIA-568-B.2-10) 04/06/06

iii
C.2

Measurement outline ...................................................................................................... 54

1
C.3

Network analyzer and test fixture settings ...................................................................... 54

2
C.4

Measurement floor .......................................................................................................... 54

3
C.5

DUT setup for ANEXT loss and AFEXT loss measurement........................................... 54

4
C.6

Region of influence ......................................................................................................... 57

5
C.7

PSANEXT loss and PSAFEXT loss calculation.............................................................. 57

6
Annex D Channel ANEXT loss and AFEXT loss laboratory measurement procedures (normative)7
......................................................................................................................................................58

8
D.1

General ........................................................................................................................... 58

9

D.2

Termination of pairs ........................................................................................................ 58

10
D.3

Channel construction ...................................................................................................... 58

11
D.4

Determining number of disturbing components .............................................................. 59

12
D.5

Channel ANEXT loss and AFEXT loss measurements and computations .................... 60

13
Annex E Field measurement method for alien crosstalk (normative) ..........................................61

14
E.1

General ........................................................................................................................... 61

15
E.2

Frequency range ............................................................................................................. 61

16
E.3

Test parameters .............................................................................................................. 61

17
E.4

Test configurations.......................................................................................................... 61

18
E.5

Processing measurement data ....................................................................................... 61

19
E.5.1

Significance condition testing .................................................................................. 61

20
E.5.2

Computing the PS ANEXT loss and PS AACR-F.................................................... 61

21
E.5.3

Applying the correction for the measurement floor (optional).................................. 63

22
E.6

Power sum alien crosstalk test strategy ......................................................................... 64

23
E.6.1

General guidelines for power sum alien crosstalk testing ....................................... 64

24
Annex F Modular plug cord test procedure (normative)...............................................................65

25
F.1

General ........................................................................................................................... 65

26
F.2

Network analyzer test configuration................................................................................ 65

27
F.3

Augmented category 6 modular plug cord test procedure.............................................. 66

28
F.4

Augmented category 6 modular plug cord test head requirements................................ 66

29
F.4.1

Augmented category 6 modular cord test head NEXT loss .................................... 66

30
F.4.2

Augmented category 6 modular cord test head FEXT loss..................................... 67

31
F.4.3

Augmented category 6 modular cord test head return loss..................................... 67

32
Annex G Connecting hardware test procedures (normative).......................................................68

33
G.1

General ........................................................................................................................... 68

34
G.2

Test setup and apparatus ............................................................................................... 68

35
G.2.1

Test balun characteristics ........................................................................................ 68

36
G.2.2

Impedance matching terminations........................................................................... 68

37
G.2.2.1

Test fixture common mode impedance match ................................................. 68

38
G.2.2.2

Balun terminations............................................................................................ 68

39
G.2.2.3

Resistor terminations........................................................................................ 68

40
G.2.2.4

Termination performance at test interface........................................................ 69

41
G.3

Modular outlet test considerations .................................................................................. 69

42
04/06/06 SP-3-4426-AD10-B, draft 4.0 (to be published as ANSI/TIA/EIA-568-B.2-10)
iv
G.3.1

Test plug construction.............................................................................................. 69

1
G.3.2

Test plug qualification .............................................................................................. 69

2
G.3.2.1

Test plug qualification procedure ..................................................................... 69

3
G.3.3

Connecting hardware NEXT loss testing................................................................. 70

4
G.3.4

Procedure for terminating a test plug to direct measurement test head ................. 70

5
G.3.5

Augmented category 6 modular test plug NEXT loss requirements ....................... 71

6
G.3.6

Augmented category 6 NEXT loss measurement reproducibility between labs ..... 73

7
G.4

Augmented category 6 test plug FEXT loss ................................................................... 74

8
G.4.1

Augmented category 6 FEXT loss measurement reproducibility between labs...... 74

9
G.5

Test plug return loss testing............................................................................................ 75

10
G.5.1

Return loss test lead considerations........................................................................ 75

11
G.5.2

Test plug return loss requirements .......................................................................... 75

12
G.5.3

Test plug return loss measurement procedure........................................................ 75

13
G.5.4

Return loss lab-to-lab measurement accuracy........................................................ 75

14
Annex H Impedance controlled measurement fixture (normative)...............................................76

15
H.1

General ........................................................................................................................... 76

16
H.2

Additional components for connection to a network analyzer ........................................ 77

17
H.3

Test fixture calibration procedure.................................................................................... 77

18
H.3.1

Open short and load calibration............................................................................... 77

19
H.3.2

Through calibration .................................................................................................. 78

20
H.4

Test lead return loss measurement using pyramid impedance management fixture..... 78

21
H.5

Direct measurement fixture detailed construction .......................................................... 79

22
H.6

Test plug delay and port extension ................................................................................. 81

23
H.7

Calibration and reference plane location ........................................................................ 81

24
H.8

Network analyzer settings............................................................................................... 81

25
H.9

Measurements ................................................................................................................ 82

26
H.10

Alternative port extension procedure ............................................................................ 83

27
Annex I Accuracy requirements for level IIIe field testers (normative).........................................84

28
I.1

General ........................................................................................................................... 84

29
I.2

Measurement performance requirements....................................................................... 84

30
I.3

Optional comparison method using the full frequency responses.................................. 86

31
Annex J Augmented category 6 ScTP related specifications (normative) ...................................88

32
J.1

General ........................................................................................................................... 88

33
J.2

Insertion loss ................................................................................................................... 88

34
J.2.1

Cable insertion loss ................................................................................................. 88

35

J.3

PSANEXT loss ................................................................................................................ 89

36
J.4

Insertion loss de-rating length adjustment ...................................................................... 89

37
Annex K Modeling configurations (informative)............................................................................90

38
K.1

General ........................................................................................................................... 90

39
40
SP-3-4426-AD10-B, draft 4.0 (to be published as ANSI/TIA/EIA-568-B.2-10) 04/06/06

v
LIST OF FIGURES
1
Figure 1 - Supplemental schematic representation of a channel test configuration ....................... 4

2
Figure 2 - Supplemental schematic representation of a permanent link test configuration ............ 5

3

Figure A.1 - Measurement configurations for test balun qualification ........................................... 52

4
Figure B.1 - 6-around-1 cable test configuration........................................................................... 53

5
Figure C.1 - Connecting hardware ANEXT loss measurement setup .......................................... 55

6
Figure D.1 - Example of a “6-around-1” cable arrangement in a channel .................................... 59

7
Figure D.2 - Connector arrangement from an 8-port panel, in which 5 of the connectors are 8
significant disturbers............................................................................................................... 59

9
Figure F.1 - Network analyzer configuration ................................................................................. 65

10
Figure G.1 - Test plug/direct measurement fixture with impedance controlled test fixture ........... 70

11
Figure H.1 - Test head assembly THI3KIT with baluns attached.................................................. 76

12
Figure H.2 - Test head assembly showing foil tape applied to baluns and shielding (optional) 13
between baluns ...................................................................................................................... 77

14
Figure H.3 - Load calibration adapter arrangement ...................................................................... 77

15
Figure H.4 - Through calibration.................................................................................................... 78

16
Figure H.5 - Test setup for measurement of test lead return loss................................................. 78

17
Figure H.6 - Plug direct measurement fixture, view 1 ................................................................... 79

18
Figure H.7 - Plug direct measurement fixture, view 2 ................................................................... 79

19
Figure H.8 - Exploded assembly of the coaxial termination reference test head.......................... 80

20
Figure H.9 - Detailed view of the coaxial termination reference test head interface..................... 81

21
Figure H.10 - Example of coaxial test head shorting plug............................................................. 83

22
Figure I.1 – Example of observed Level IIIe accuracy .................................................................. 87

23
24
LIST OF TABLES
25
26

Table 1 - Matrix of backward compatible mated component performance ..................................... 1

27
Table 2 - Augmented category 6 cable insertion loss ..................................................................... 6

28
Table 3 – Augmented category 6 connecting hardware insertion loss ........................................... 7

29
Table 4 – Augmented category 6 channel insertion loss ................................................................ 8

30
Table 5 – Augmented category 6 permanent link insertion loss ..................................................... 9

31
Table 6 - Augmented category 6 cable NEXT loss ....................................................................... 10

32
Table 7 – Augmented category 6 connecting hardware NEXT loss ............................................. 11

33
Table 8 – Augmented category 6 connecting hardware NEXT loss ............................................. 11

34
Table 9 - Example augmented category 6 work area, equipment, and patch cord NEXT loss limits35
................................................................................................................................................ 13

36
Table 10 – Augmented category 6 channel NEXT loss ................................................................ 14

37
Table 11 – Augmented category 6 channel NEXT loss ................................................................ 14

38
Table 12 – Augmented category 6 permanent link NEXT loss ..................................................... 15

39
Table 13 – Augmented category 6 permanent link pair-to pair NEXT loss................................... 15

40
Table 14 - Augmented category 6 cable PSNEXT loss ................................................................ 16

41
Table 15 – Augmented category 6 channel PSNEXT loss............................................................ 17

42
Table 16 – Augmented category 6 channel PSNEXT loss............................................................ 17

43
Table 17 – Augmented category 6 permanent link PSNEXT loss ................................................ 18

44
Table 18 – Augmented category 6 permanent link PSNEXT loss ................................................ 18

45
Table 19 – Augmented category 6 cable ELFEXT........................................................................ 19

46
Table 20 – Augmented category 6 channel ELFEXT.................................................................... 20

47
Table 21 – Augmented category 6 permanent link ELFEXT......................................................... 21

48
Table 22 – Augmented category 6 connecting hardware FEXT loss............................................ 22

49
Table 23 - Augmented category 6 cable PSELFEXT.................................................................... 23

50
Table 24 – Augmented category 6 channel PSELFEXT ............................................................... 24

51
Table 25 – Augmented category 6 permanent link PSELFEXT.................................................... 25

52
Table 26 - Augmented category 6 horizontal cable return loss..................................................... 26

53
Table 27 - Augmented category 6 horizontal cable return loss..................................................... 26

54
04/06/06 SP-3-4426-AD10-B, draft 4.0 (to be published as ANSI/TIA/EIA-568-B.2-10)
vi
Table 28 - Augmented category 6 cord cable return loss ............................................................. 27

1
Table 29 - Augmented category 6 cord cable return loss ............................................................. 27

2

Table 30 - Augmented category 6 connecting hardware return loss ............................................ 28

3
Table 31 - Augmented category 6 work area, equipment, and patch cord return loss ................. 29

4
Table 32 - Augmented category 6 work area, equipment, and patch cord return loss ................. 29

5
Table 33 – Augmented category 6 channel return loss................................................................. 30

6
Table 34 – Augmented category 6 channel return loss................................................................. 30

7
Table 35 – Augmented category 6 permanent link return loss ..................................................... 31

8
Table 36 – Augmented category 6 permanent link return loss ..................................................... 31

9
Table 37 - Augmented category 6 cable propagation delay ......................................................... 32

10
Table 38 – Augmented category 6 cable TCL............................................................................... 34

11
Table 39 – Augmented category 6 connecting hardware TCL...................................................... 35

12

Table 40 – Augmented category 6 channel TCL........................................................................... 36

13
Table 41 – Augmented category 6 channel TCL........................................................................... 36

14
Table 42 – Augmented category 6 cable ELTCTL ........................................................................ 37

15
Table 43 – Augmented category 6 connecting hardware TCTL ................................................... 38

16
Table 44 – Augmented category 6 channel ELTCTL .................................................................... 39

17
Table 45 – Augmented category 6 cable PSANEXT loss ............................................................. 40

18
Table 46 – Augmented category 6 connecting hardware PSANEXT loss .................................... 41

19
Table 47 – Augmented category 6 channel PSANEXT loss ......................................................... 42

20
Table 48 – Augmented category 6 channel PSANEXT loss ......................................................... 42

21
Table 49 – Augmented category 6 permanent link PSANEXT loss .............................................. 43

22

Table 50 – Augmented category 6 permanent link PSANEXT loss .............................................. 43

23
Table 51 – Augmented category 6 channel average PSANEXT loss ........................................... 44

24
Table 52 – Augmented category 6 channel average PSANEXT loss ........................................... 44

25
Table 53 – Augmented category 6 cable PSAACRF loss ............................................................. 46

26
Table 54 – Augmented category 6 connecting hardware PSAFEXT loss .................................... 47

27
Table 55 – Augmented category 6 channel PSAACRF ................................................................ 48

28
Table 56 – Augmented category 6 permanent link PSAACRF ..................................................... 49

29
Table 57 – Augmented category 6 channel average PSAACRF .................................................. 50

30
Table A.1 - Test balun performance characteristics...................................................................... 51

31
Table F.1 - Augmented category 6 modular cord test head return loss........................................ 67

32

Table G.1 – Augmented category 6 connecting hardware NEXT loss for high and low plugs 45-3633
................................................................................................................................................ 70

34
Table G.2 – Augmented category 6 direct measurement test plug NEXT loss limits ................... 71

35
Table G.3 – Augmented category 6 direct measurement test plug NEXT loss range ................. 72

36
Table G.4 – Augmented category 6 FEXT loss ranges for category 6 NEXT loss test plugs....... 73

37
Table G.5 – Test plug NEXT loss measurement reproducibility between laboratories ................ 73

38
Table G.6 – Augmented category 6 test plug FEXT loss ranges.................................................. 74

39
Table G.7 – Test plug FEXT loss measurement reproducibility between laboratories ................. 74

40
Table H.1 - Direct measurement fixture residual NEXT loss and return loss ............................... 80

41
Table I.1 – Level IIIe field tester accuracy performance ............................................................... 84

42
Table I.2 - Explanation of notes in table I.1 ...................................................................................85

43
Table J.1 – Augmented category 6 ScTP cable insertion loss...................................................... 88

44
Table J.2 – Augmented category 6 ScTP channel PSANEXT loss .............................................. 89

45
Table J.3 – Augmented category 6 ScTP channel PSANEXT loss .............................................. 89

46
47
SP-3-4426-AD10-B, draft 4.0 (to be published as ANSI/TIA/EIA-568-B.2-10) 04/06/06

vii
1
2
3
4
FOREWORD
5
6
7
8
(This foreword is not part of the Standard) 9
10
11
In 2003, the Telecommunications Industry Association (TIA) developed objectives for augmented 12
category 6 cabling intended to support 10 Gigabit applications over a distance of 100 meters. At 13
the request of the Institute of Electrical and Electronics Engineers (IEEE) 802.3 Committee, TIA 14
agreed to specify augmented category 6 cabling systems and components to 500 MHz in order to 15

support 10GBASE-T. The project was assigned to TR-42.7 under Engineering Committee TR-42. 16
The TR-42.7 Sub-Committee cooperated with several groups related to this activity. 17
18
TIA standards documents are developed within the Technical Committees of the TIA and the 19
standards coordinating committees of the TIA standards board. Members of the committees 20
serve voluntarily and without commission. The companies that they represent are not 21
necessarily members of the TIA. The standards developed within the TIA represent a consensus 22
of the broad expertise on the subject. This expertise comes from within the TIA as well as those 23
outside of the TIA that have an expressed interest. The viewpoint expressed at the time that this 24
standard was approved was from the contributors’ experience and the state of the art at that time. 25
Users are encouraged to verify that they have the latest revision of the standard. 26
27
This standard has been prepared by the TR-42.7 Subcommittee and approved by the 28
Engineering Committee TR-42. 29
30
There are 10 annexes in this Standard. Annexes A, B, C, D, E, F, G, H, I, and J, are normative 31
and considered a mandatory part of this Standard. Annex K is informative and not considered a 32
part of this Standard. 33
34
SP-3-4426-AD10-B, draft 4.0 (to be published as TIA/EIA-568-B.2-10) 04/06/06

1
1 INTRODUCTION 1
This Standard specifies requirements and recommendations for 100 Ω 4-pair augmented 2
category 6 cabling, cables, cords, and connecting hardware to support the operation of high-speed 3
applications, such as IEEE 802.3 10GBASE-T, over up to100 meters of structured balanced 4
twisted-pair copper cabling.

In addition, augmented category 6 cabling, cables, cords, and 5
connecting hardware shall meet or exceed all the requirements of ANSI/TIA/EIA-568-B.1, 6

ANSI/TIA/EIA-568-B.2, and ANSI/TIA/EIA-568-B.2-1. Compliance with this Standard does not imply 7
compatibility with cabling having nominal impedance values other than 100 Ω. 8
9
The requirements in this Standard are for 100 Ω augmented category 6 balanced twisted-pair 10
cabling systems and components. Augmented category 6 cabling provides higher performance 11
than category 6 and recognizes advances in cabling technology. Augmented category 6 shall be 12
backward compatible with categories 3, 5, 5e, and 6 as specified in ANSI/TIA/EIA-568-B.1, 13
ANSI/TIA/EIA-568-B.2, and ANSI/TIA/EIA-568-B.2-1. Applications running on the lower category 14
cabling shall be supported by augmented category 6. For augmented category 6, the 8-position 15
modular jack interface shall be maintained at the telecommunications outlet connector in the work 16
area. If different category components are to be mixed with augmented category 6 components, 17
the combination shall meet the transmission requirements of the lower performing category. See 18
table 1 for a matrix of mated component performance representative of backward compatibility. To 19
ensure generic cabling system performance, component requirements are specified to support 20
interoperability when products from different manufacturers are mated. 21
Table 1 - Matrix of backward compatible mated component performance 22
Category of Modular Connecting Hardware Performance

Category
3
1)

Category 5 Category 5e Category 6 Augmented
Category 6
Category 3
1)
Category 3 Category 3 Category 3 Category 3 Category 3
Category 5 Category 3 Category 5 Category 5 Category 5 Category 5
Category 5e Category 3 Category 5 Category 5e Category 5e Category 5e
Category 6 Category 3 Category 5 Category 5e Category 6 Category 6

Augmented
Category 6
Category 3 Category 5 Category 5e Category 6 Augmented
Category 6
1) Category 3 plug performance requirements are assumed to be less restrictive than
category 5e.
23
Testing according to the procedures of this standard is intended to ensure backward compatibility 24
with category 6. 25
2 PURPOSE AND SCOPE 26
To develop cabling and component specifications and test procedures to support the operation of 27
high-speed applications, such as IEEE 802.3an 10GBASE-T, over up to100 meters of structured 28
balanced twisted-pair copper cabling. This Standard specifies requirements and recommendations 29
for 100 Ω 4-pair augmented category 6 cabling, cables, cords, and connecting hardware up to 30
500 MHz. This Standard includes extending the frequency range and adding requirements 31
(i.e. alien crosstalk) to those specified in ANSI/TIA/EIA-568-B.2 and its addenda. This cabling shall 32
be known as augmented category 6. Augmented category 6 may be abbreviated as category 6A. 33
34
Modular Plug &
Cord Performance
04/06/06 SP-3-4426-AD10-B, draft 4.0 (to be published asTIA/EIA-568-B.2-10)
2
3 NORMATIVE REFERENCES 1
The following standards contain requirements that, through reference in this text, constitute 2
provisions of this Standard. At the time of publication, the editions indicated were valid. All 3
standards are subject to revision; parties to agreements based on this Standard are encouraged to 4
investigate the possibility of applying the most recent editions of the standards indicated. ANSI and 5
TIA maintain registers of currently valid national standards published by them. 6
ANSI/ICEA S-80-576, Communications Wire and Cable for Wiring Premises, 1994 7

ANSI/ICEA S-90-661, Individually Unshielded Twisted Pair Indoor Cable for Use in Communication 8
Wiring Systems, 1994 9
ANSI/TIA/EIA-568-B.1, Commercial Building Telecommunications Standard Part 1: General 10
Requirements, 2001 11
ANSI/TIA/EIA-568-B.2, Commercial Building Telecommunications Standard Part 2: Balanced 12
Twisted-pair Cabling Components, 2001 13
ANSI/TIA/EIA-568-B.2-1, Commercial Building Telecommunications Standard Part 2: Addendum 1: 14
Transmission Performance Specifications for 4-Pair 100 Ohm category 6 cabling, 2002 15
ANSI/TIA/EIA-568-B.2-3, Additional Considerations for Insertion Loss and Return Loss Pass/Fail 16
Determination, 2002 17
ANSI/TIA/EIA-568-B.2-9, Additional Category 6 Balance Requirements and Measurement 18
Procedures, pending publication 19
ANSI/TIA/EIA-568-B.2-11, Specification for Increased Diameter of 4-Pair UTP and SCTP Cable 20
2005 21
ANSI/TIA/EIA-568-B.3, Commercial Building Telecommunications Standard Part 3: Optical Fiber 22
Cabling Components, 2000 23
ASTM D 4566-98, Standard Test Methods for Electrical Performance Properties of Insulations and 24
Jackets for Telecommunications Wire and Cable, 1998 25
IEC 60603-7, Connectors for frequencies below 3 MHz for use with printed boards – Part 7: Detail 26
specification for connectors, 8-way, including fixed and free connectors with common mating 27
features, with assessed quality, 1996 28
4 DEFINITIONS, ACRONYMS & ABBREVIATIONS 29
4.1 Definitions 30
The generic definitions in this section have been formulated for use by the entire family of 31
telecommunications infrastructure standards. As such, the definitions do not contain mandatory 32
requirements of the Standard. Specific requirements are found in the normative sections of this 33
Standard. 34
NOTE - The definitions of equal level far end crosstalk (ELFEXT) and power sum equal 35
level far end crosstalk (PSELFEXT) as used in this standard are defined in ASTM D 4566 36
as attenuation to crosstalk ratio far end (ACR-F) and power sum attenuation to crosstalk 37

ratio, far end (PSACR-F) respectively. 38
alien crosstalk: Signal coupling from disturbing pairs into a disturbed pair of a neighboring channel 39
or part thereof. 40
alien far-end crosstalk loss: Signal coupling from near-end disturbing channel pairs into a 41
disturbed pair of a neighboring channel or part thereof, measured at the far-end. 42
alien near-end crosstalk loss: Signal coupling from near-end disturbing channel pairs into a 43
disturbed pair of a neighboring channel or part thereof, measured at the near-end. 44
average ANEXT loss: The average signal coupling from near-end disturbing channel pairs into a 45
disturbed pair of a neighboring channel or part thereof, measured at the near-end. 46
SP-3-4426-AD10-B, draft 4.0 (to be published as TIA/EIA-568-B.2-10) 04/06/06

3
average PSANEXT loss: The calculated average of the individual PSANEXT loss values for all 1
four pairs in the disturbed channel 2
cord cable: cable used to construct patch, work area, and equipment cords. 3
power sum attenuation to alien crosstalk ratio far-end: A computation of signal coupling from 4
multiple pairs of disturbing channels, to a disturbed pair in another channel, measured at the far-5
end, and relative to the received signal level in the disturbed pair at the far-end. 6
power sum alien far-end crosstalk loss: A computation of signal coupling from multiple near-end 7
disturbing channel pairs into a disturbed pair of a neighboring channel or part thereof, measured at 8
the far-end. 9
power sum alien near-end crosstalk loss: A computation of signal coupling from multiple near-10
end disturbing channel pairs into a disturbed pair of a neighboring channel or part thereof, 11
measured at the near-end. 12
power sum far-end crosstalk loss: A computation of the unwanted signal coupling from multiple 13
transmitters at the near-end into a pair measured at the far-end. 14
4.2 Acronyms and abbreviations 15
AELFEXT Alien equal level far-end crosstalk 16
AFEXT Alien far-end crosstalk 17
ANEXT Alien near-end crosstalk 18

CM Common mode 19
DM Differential mode 20
PSAACRF Power sum attenuation to alien crosstalk ratio far-end 21
PSAFEXT Power sum alien far-end crosstalk 22
PSANEXT Power sum alien near-end crosstalk 23
PSFEXT Power sum far-end crosstalk 24
25
04/06/06 SP-3-4426-AD10-B, draft 4.0 (to be published asTIA/EIA-568-B.2-10)
4
5 TEST CONFIGURATIONS 1
Cabling and component test configurations and procedures are specified in ANSI/TIA/EIA-568-B.1 2
and ANSI/TIA/EIA-568-B.2 and their addenda with the additional requirements specified within this 3
Standard. The channel test configuration is described in ANSI/TIA/EIA-568-B.1. A supplemental 4
schematic representation of the channel test configuration is illustrated in figure 1. 5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

22
23
24
25
26
27
28
Figure 1 - Supplemental schematic representation of a channel test configuration 29
30
Legend

Cables and cords Connecting hardware
Work area cord ..................................A Telecommunications outlet/
Optional consolidation point cabling..B connector ....................................WA
Horizontal cabling ............................. C Optional consolidation
Patch cord or jumper cable .............. D point connector ............................CP
Telecommunications room Horizontal cross-connect or
equipment cord ...........................E interconnect .......................... C1, C2

Maximum length
B + C.....................................90 m (295 ft)
A + D + E .............................10 m (32.8 ft)

Test
equipment
A B C
D
E

Test

equipment
CP WA
C1 C2
Channel under test
SP-3-4426-AD10-B, draft 4.0 (to be published as TIA/EIA-568-B.2-10) 04/06/06

5
The permanent link test configuration is defined in ANSI/TIA/EIA-568-B.1. A supplemental 1
schematic representation of the permanent link test configuration is illustrated in figure 2. 2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

Figure 2 - Supplemental schematic representation of a permanent link test configuration 24
6 CABLING AND COMPONENTS 25
The following category of twisted-pair cabling and components is recognized in addition to those 26
identified in ANSI/TIA/EIA-568-B.2 and its addenda: 27
28
Augmented category 6: This designation applies to 100 Ω cabling and components whose 29
transmission characteristics are specified up to 500 MHz. 30
6.1 Recognized cable 31
Augmented category 6 cable, of all types including horizontal, cord, backbone, and bundled and 32
hybrid cables, shall conform to the respective cable types’ requirements given in clause 4 of 33
ANSI/TIA/EIA-568-B.2 and its addenda and clause 7 of this Standard. 34
35
Additional requirements for 100 Ω augmented category 6 ScTP cables are located in annex K of 36
ANSI/TIA/EIA-568-B.2 and annex J of this Standard.

37
38
Bundling lower category cables with augmented category 6 cables may adversely affect alien 39
crosstalk performance.

40
6.2 Recognized connecting hardware 41
Augmented category 6 connecting hardware shall conform to the respective connecting hardware 42
requirements given in clause 5 of ANSI/TIA/EIA-568-B.2 and its addenda and clause 7 of this 43
Standard. 44
6.3 Cords 45
Augmented category 6 cords shall conform to the respective cord requirements given in clause 6 of 46
ANSI/TIA-568-B.2 and its addenda and clause 7 of this Standard. 47
48
Legend

Cables and cords Connecting hardware
Test equipment cord ......................... F Telecommunications outlet/
Optional consolidation point cabling . B connector.................................... WA
Horizontal cabling..............................C Optional consolidation
point connector............................ CP
Horizontal cross-connect or
interconnect................................. C1

Maximum length
B + C .................................... 90 m (295 ft)

Test
instrument
F B C F

Test
instrument
CPWA
C1
Permanent link
under test
04/06/06 SP-3-4426-AD10-B, draft 4.0 (to be published asTIA/EIA-568-B.2-10)
6
7 TRANSMISSION REQUIREMENTS 1
7.1 Insertion loss 2
7.1.1 Cable insertion loss 3
For all frequencies from 1 MHz to 500 MHz, augmented category 6 horizontal cable insertion loss 4
shall meet the values determined using equation (1). Cable insertion loss shall be measured in 5
accordance with clause C.1 of ANSI/TIA/EIA-568-B.2 at 20 ± 3°C or corrected to a temperature of 6

20 °C using the correction factors specified in this clause. The values in table 2 are provided for 7
information only. 8

9
f
ffossInsertionL
mcable
2.0
01.08.1
100,
++≤
dB (1) 10
Augmented category 6 horizontal cable insertion loss shall also be verified at a temperature of 11
40 ± 3 °C and 60 ± 3 °C and shall meet the requirements of equation (1) after adjusting for 12
temperature. The maximum insertion loss for horizontal UTP cables shall be adjusted at elevated 13
temperatures using a factor of 0.4 % increase per °C from 20 °C to 40 °C and 0.6% increase per °C 14
for temperatures from 40 °C to 60 °C. The maximum insertion loss for horizontal ScTP cables shall 15
be adjusted at elevated temperatures using a factor of 0.2% increase per °C from 20 °C to 60 °C. 16
17
Table 2 - Augmented category 6 cable insertion loss 18
19
Frequency
(MHz)
Insertion loss
(dB)
1.00 2.0
4.00 3.7
8.00 5.2
10.00 5.9
16.00 7.4

20.00 8.3
25.00 9.3
31.25 10.4
62.50 14.9
100.00 19.0
200.00 27.5
250.00 31.0
300.00 34.2
400.00 40.0
500.00 45.3
20
21
22
For all frequencies from 1 MHz to 500 MHz, augmented category 6 UTP and ScTP cord cable 23
insertion loss shall meet the values determined using equation (2),which has a de-rating factor of 24
1.2. An insertion loss de-rating factor of 1.5 for cord cable is allowed with the appropriate guidance 25
as described in annex . Cord cable insertion loss shall be measured at 20 ± 3° C or corrected to a 26
temperature of 20 °C using a 0.4 %/°C correction factor for the measured insertion loss. 27

28
mcablemcablecord
ossInsertionLossInsertionL
100,100,_
2.1 ⋅≤
dB (2) 29
30
31
32
SP-3-4426-AD10-B, draft 4.0 (to be published as TIA/EIA-568-B.2-10) 04/06/06

7
7.1.2 Connecting hardware insertion loss 1
For all frequencies from 1 MHz to 500 MHz, augmented category 6 connecting hardware insertion 2
loss shall meet the values determined using equation (3). The values in table 3 are provided for 3
information only. Calculations that result in insertion loss values less than 0.1 dB shall revert to a 4
requirement of 0.1 dB maximum. 5
6
fossInsertionL
conn
02.0≤
dB (3) 7
8
Table 3 – Augmented category 6 connecting hardware insertion loss 9
10
Frequency
(MHz)
Insertion loss
(dB)
1.00 0.02
4.00 0.04
8.00 0.06
10.00 0.06
16.00 0.08
20.00 0.09
25.00 0.10
31.25 0.11
62.50 0.11
100.00 0.16
200.00 0.20
250.00 0.28

300.00 0.32
400.00 0.35
500.00 0.40
11
12
04/06/06 SP-3-4426-AD10-B, draft 4.0 (to be published asTIA/EIA-568-B.2-10)
8
7.1.3 Cabling insertion loss 1
7.1.3.1 Channel insertion loss 2
For all frequencies from 1 MHz to 500 MHz, when measured according to the procedures in 3
annex C of ANSI/TIA/EIA-568-B.2-1, the channel insertion loss shall meet the values determined 4
using equation (4). For the purposes of field measurements, calculated channel limits that result in 5
insertion loss values less than 3 dB revert to a requirement of 3 dB maximum (see 6
ANSI/TIA/EIA-568-B.2-3). Insertion loss values in table 4 computed from equation (4) are provided 7
for information. 8
9
f
f
ffossInsertionL
channel
02.04)
2.0
01.08.1(05.1 ⋅+++≤
dB (4) 10
11
Equation (4) includes an ILD allowance that is given by equation (5) for all frequencies from 1 MHz 12
to 500 MHz). 13
14
)
2.0

01.08.1(03.0
100,
f
ffILD
mchannel
++≤
(5) 15
Table 4 – Augmented category 6 channel insertion loss 16
17
Frequency
(MHz)
Insertion loss
(dB)
1.00 2.2
4.00 4.1
8.00 5.7
10.00 6.4
16.00 8.1
20.00 9.1
25.00 10.2
31.25 11.4
62.50 16.3
100.00 20.8
200.00 30.0
250.00 33.8
300.00 37.3
400.00 43.6
500.00 49.3
18
19

NOTES, 20
1 The insertion loss of the channel does not take into consideration the 0.1 dB 21
measurement floor of the connecting hardware insertion loss requirement. 22
2 The channel insertion loss requirement is derived using the insertion loss contribution 23
of 4 connections. 24
25
26
SP-3-4426-AD10-B, draft 4.0 (to be published as TIA/EIA-568-B.2-10) 04/06/06

9
7.1.3.2 Permanent link insertion loss 1
For all frequencies from 1 MHz to 500 MHz, augmented category 6 permanent link insertion loss 2
shall meet the values determined using equation (9). For the purposes of field measurements, 3
calculated permanent link limits that result in insertion loss values less than 3 dB revert to a 4
requirement of 3 dB maximum (see ANSI/TIA/EIA-568-B.2-3). The values in table 5 are provided 5
for information only. 6
∑ ∑
+=
cableconnlinkperm
ossInsertionLossInsertionLossInsertionL
_
7

8

linkperm
ILD
_
+
dB (6) 9

where: 10

11
mcablecable
ossInsertionLossInsertionL
100,
9.0 ⋅=
dB, and (7) 12

13
5.1
_
00015.0 fILD
linkperm
=
dB (TBD – Editor: See TBD in equation (9) also) (8) 14
15
16
17
)(00015.0
18.0
009.068.1
5.1
_
TBDf
f
ffossInsertionL
linkperm
+++≤
dB (9) 18

19
Table 5 – Augmented category 6 permanent link insertion loss 20
21
Frequency
(MHz)
Insertion loss
(dB)
1.00 1.9
4.00 3.5
8.00 4.9
10.00 5.5
16.00 6.9
20.00 7.7
25.00 8.7
31.25 9.7
62.50 13.9
100.00 17.9
200.00 26.0
250.00 29.4
300.00 32.6
400.00 38.4
500.00 43.8

22
23
NOTES, 24
1 The insertion loss of the permanent link does not take into consideration the 0.1 dB 25
measurement floor of the connecting hardware insertion loss requirement. 26
2 The permanent link insertion loss requirement is derived using the insertion loss 27
contribution of 3 connections. 28

29
30
04/06/06 SP-3-4426-AD10-B, draft 4.0 (to be published asTIA/EIA-568-B.2-10)
10
7.2 NEXT loss and PSNEXT loss 1
NEXT loss is a measure of the unwanted signal coupling from a transmitter at the near-end into 2
neighboring pairs measured at the near-end. NEXT loss is expressed in dB relative to the transmit 3
signal level. NEXT loss shall be measured for all pair combinations of cables and cabling in 4
accordance with annex C of ANSI/TIA/EIA-568-B.2 and the ASTM D 4566 NEXT loss 5
measurement procedure. In addition, the test fixture shall provide for consistent common and 6
differential mode impedance matching for the unjacketed twisted-pairs between the cable jacket 7
and the balun terminations. Connecting hardware NEXT loss shall be measured for all pair 8
combinations in accordance with annex G. Modular plug cord NEXT loss shall be measured for all 9
pair combinations in accordance with annex . In addition, since each duplex channel can be 10
disturbed by more than one duplex channel, power sum near-end crosstalk (PSNEXT) loss is also 11
specified for cabling and cables. 12
7.2.1 NEXT loss 13
7.2.1.1 Cable NEXT loss

14
For all frequencies from 0.772 MHz to 500 MHz, augmented category 6 cable NEXT loss, for a 15
length of 100 m (328 ft) or longer, shall meet the values determined using equation (10). The 16
values in table 6 are provided for information only. 17
18
)100/log(153.44
fNEXT
cable
−≥
dB (10) 19
20

Table 6 - Augmented category 6 cable NEXT loss 21
22
Frequency
(MHz)
NEXT loss
(dB)
0.150 86.7
0.772 76.0
1.00 74.3
4.00 65.3
8.00 60.8
10.00 59.3
16.00 56.2
20.00 54.8
25.00 53.3
31.25 51.9
62.50 47.4
100.00 44.3
200.00 39.8
250.00 38.3
300.00 37.1
400.00 35.3
500.00 33.8
23
NOTE - 0.150 MHz is for reference purposes only. 24
25
SP-3-4426-AD10-B, draft 4.0 (to be published as TIA/EIA-568-B.2-10) 04/06/06

11
7.2.1.2 Connecting hardware NEXT loss 1

For all frequencies from 1 MHz to 500 MHz, augmented category 6 connecting hardware NEXT 2
loss shall meet the values determined using the equations specified in table 7 when mated to the 3
range of test plugs specified in clause G.3. Calculations that result in NEXT loss values greater 4
than 75 dB shall revert to a requirement of 75 dB minimum. The values in table 8 are provided for 5
information only. 6
7
Table 7 – Augmented category 6 connecting hardware NEXT loss 8
9
Frequency
(MHz)
NEXT loss
(dB)
1 ≤ f ≤250
250 < f ≤ 500
54-20log(
f/
100)
46.04-40log(
f/
250)
10
Table 8 – Augmented category 6 connecting hardware NEXT loss 11
12
Frequency
(MHz)
NEXT loss
(dB)
1.00 75.0
4.00 75.0
8.00 75.0

10.00 74.0
16.00 69.9
20.00 68.0
25.00 66.0
31.25 64.1
62.50 58.1
100.00 54.0
200.00 48.0
250.00 46.0
300.00 42.9
400.00 37.9
500.00 34.0
13
14
04/06/06 SP-3-4426-AD10-B, draft 4.0 (to be published asTIA/EIA-568-B.2-10)
12
7.2.1.3 Work area, equipment, and patch cord NEXT loss 1
Work area, equipment, and patch cords shall meet the values determined using the equations of 2
this clause. Modular plug cords shall be measured in accordance with annex . The measured 3
NEXT loss of modular plug cords shall exceed the values calculated in equation (11). 4
5
( )
RFEXT
conn
IL
cable
NEXT
connectors
NEXT
limitcord

NEXT −












⋅+−
+
−
−=
10
2
10
10
10log10
_
(11) 6
where: 7
( )( )













++−
+
−
−=
20
2
10
20
10log20
conn
IL
cable
IL
conn
NEXT
conn
NEXT
connectors
NEXT
(12) 8
9
100

100,
hCableLengt
mcable
IL
IL
DeRating
cable
IL ⋅⋅=
(13) 10








⋅−
−−=
cable
IL
e
mcable
NEXT
cable
NEXT
46.0
1log10
100,
(14) 11

12
conn
NEXT
is the mated NEXT loss assigned to the local and remote patch cord test adapter, in dB 13
as shown specified in clause 7.2.1.2. 14
where: 15
f
is the frequency in MHz, NEXT is in dB, and cable length is in meters. 16
17
mcable
IL
100,
is the insertion loss of 100 meters of cable as specified in equation (1). 18

19
IL
Derating
is the de-rating factor specified for cable as specified in equation (2). 20

21
conn
IL
is the insertion loss of a compliant connector as specified in equation (3). 22

23
24
SP-3-4426-AD10-B, draft 4.0 (to be published as TIA/EIA-568-B.2-10) 04/06/06

13
cable

NEXT
is the cable NEXT loss computed from the NEXT loss requirements for 100 m cable, 1
the insertion loss requirements for 100 m patch cable, the length correction formula in ASTM D 2
4566, and 3

4
mcable
NEXT
100,
is the NEXT loss test limit for 100 m cable as specified in equation (10). 5

6
RFEXT
is the allowance for reflected FEXT loss as described in equation (15). 7
8
RFEXT
= 0.5 dB (15) 9

10
11
The low frequency measurement plateau for connector insertion loss and connector NEXT loss do 12
not apply to the calculation of cord limits. Calculations that result in NEXT loss greater than 65 dB 13
shall revert to a limit of 65 dB. The values in table 9 are provided for information only. 14
Table 9 - Example augmented category 6 work area, equipment, and patch cord NEXT loss 15
limits 16
Frequency
(MHz)
1 m cord limit
(dB)
2 m cord limit

(dB)
5 m cord limit
(dB)
10 m cord limit
(dB)
1.00 65.0 65.0 65.0 65.0
4.00 65.0 65.0 65.0 65.0
8.00 65.0 65.0 65.0 64.8
10.00 65.0 65.0 64.5 63.0
16.00 62.7 62.0 60.5 59.1
20.00 60.7 60.1 58.7 57.3
25.00 58.8 58.2 56.8 55.4
31.25 56.9 56.3 54.9 53.6
62.50 51.0 50.4 49.2 48.1
100.00 47.0 46.4 45.4 44.5
200.00 41.1 40.7 39.9 39.3
250.00 39.3 38.9 38.1 37.7
300.00 36.4 36.2 35.9 35.8
400.00 31.8 31.9 32.1 32.5
500.00 28.2 28.4 29.0 29.8
17
18
19
20
04/06/06 SP-3-4426-AD10-B, draft 4.0 (to be published asTIA/EIA-568-B.2-10)
14
7.2.1.4 Channel NEXT loss 1
For all frequencies from 1 MHz to 500 MHz, augmented category 6 channel NEXT loss shall meet 2
the values determined using the equations in table 10. Calculations that result in NEXT loss values 3
greater than 65 dB shall revert to a requirement of 65 dB minimum. The values in table 11 are 4

provided for information only. 5
6
Table 10 – Augmented category 6 channel NEXT loss
7
Frequency
(MHz)
NEXT loss
(dB)


1 ≤
f
< 330


330 ≤
f
≤ 500
)
20
))100/log(2054(
102
20
))100/log(153.44(
10log(20
ff
channel
NEXT
−−
⋅+

−−
−≥


)330/log(15.2731 f
channel
NEXT −≥


8
9
Table 11 – Augmented category 6 channel NEXT loss 10
11
Frequency
(MHz)
NEXT loss
(dB)
1.00 65.0
4.00 63.0
8.00 58.2
10.00 56.6
16.00 53.2
20.00 51.6
25.00 50.0
31.25 48.4
62.50 43.4
100.00 39.9
200.00 34.8
250.00
300.00

33.1
31.7
400.00 28.7
500.00 26.1
12
13
SP-3-4426-AD10-B, draft 4.0 (to be published as TIA/EIA-568-B.2-10) 04/06/06

15
7.2.1.5 Permanent link NEXT loss 1
For all frequencies from 1 MHz to 500 MHz, augmented category 6 permanent link NEXT loss shall 2
meet the values determined using the equations in table 12. Calculations that result in NEXT loss 3
values greater than 65 dB shall revert to a requirement of 65 dB minimum. The values in table 13 4
are provided for information only. 5
Table 12 – Augmented category 6 permanent link NEXT loss
6
Frequency
(MHz)
NEXT loss
(dB)


1 ≤
f
< 300


300 ≤
f
≤ 500

)
20
))100/log(2054(
10
20
))100/log(153.44(
10log(20
_
ff
NEXT
linkperm
−−
+
−−
−≥


)300/log(13.3334
_
fNEXT
linkPerm
−≥


7
8
Table 13 – Augmented category 6 permanent link pair-to pair NEXT loss 9
10
Frequency
(MHz)

NEXT loss
(dB)
1.00 65.0
4.00 64.1
8.00 59.4
10.00 57.8
16.00 54.6
20.00 53.1
25.00 51.5
31.25 50.0
62.50 45.1
100.00 41.8
200.00 36.9
250.00 35.3
300.00 34.0
400.00 29.9
500.00 26.7
11
12
04/06/06 SP-3-4426-AD10-B, draft 4.0 (to be published asTIA/EIA-568-B.2-10)
16
7.2.2 PSNEXT loss 1
Power sum near-end crosstalk loss takes into account the combined crosstalk (statistical) on a 2
receive pair from all near-end disturbers operating simultaneously. The power sum near-end 3
crosstalk (PSNEXT) loss is calculated in accordance with ASTM D 4566 as a power sum on a 4
selected pair from all other pairs as shown in equation (16) for the case of 4-pair cable. 5
6
)101010log(10
10
3

10
2
10
1
X
XX
PSNEXT
−
−−
++−=
dB (16) 7
8
where: 9
10
X1, X2, X3 are the pair-to-pair crosstalk measurements in dB between the selected pair and the 11
other three pairs. 12
13
NOTE - For channel and permanent link power sum calculations, it is assumed that the 14
pair-to-pair connecting hardware NEXT loss requirements of this Standard are equivalent 15
to a PSNEXT loss performance of 50-20log(
f
/100) for frequencies from 1 MHz to 250 MHz 16
and 42.04-40log(
f
/250) for frequencies from 250 MHz to 500 MHz. PSNEXT loss for 17
connecting hardware does not need to be separately verified. 18
7.2.2.1 Cable PSNEXT loss 19
For all frequencies from 0.772 MHz to 500 MHz, augmented category 6 cable PSNEXT loss, for a 20
length of 100 m (328 ft) or longer, shall meet the values determined using equation (17). The 21
values in table 14 are provided for information only. 22

23
)100/log(153.42 fPSNEXT
cable
−≥
dB (17) 24
Table 14 - Augmented category 6 cable PSNEXT loss 25
26
Frequency
(MHz)
PSNEXT loss
(dB)
0.150 84.7
0.772 74.0
1.00 72.3
4.00 63.3
8.00 58.8
10.00 57.3
16.00 54.2
20.00 52.8
25.00 51.3
31.25 49.9
62.50 45.4
100.00 42.3
200.00 37.8
250.00 36.3
300.00 35.1
400.00 33.3
500.00 31.8
27
NOTE – The augmented category 6 cable PSNEXT loss value at 0.150 MHz is for 28

reference purposes only. 29
30