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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
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
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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
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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
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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
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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
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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
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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
I
L
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