NOTICE OF DISCLAIMER AND
LIMITATION OF LIABILITY
SP-3-4426-AD10-B
To be published as ANSI/TIA/EIA-568-B.2-10

1
NOTICE OF DISCLAIMER AND LIMITATION OF LIABILITY 2
3
4
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47
SP-3-4426-AD10-B
To be published as ANSI/TIA/EIA-568-B.2-10
TIA SHALL NOT BE LIABLE FOR ANY AND ALL DAMAGES, DIRECT OR INDIRECT, ARISING FROM 1
OR RELATING TO ANY USE OF THE CONTENTS CONTAINED HEREIN, INCLUDING WITHOUT 2
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{TIA staff to insert applicable text here.} 13
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

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

7.6.2.2 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

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

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

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

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 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

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

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

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

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

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


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

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

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

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

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

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

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








⋅−
−−=
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

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

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

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