1
NOTICE OF DISCLAIMER AND LIMITATION OF LIABILITY 2

3

4
The document to which this Notice is affixed (the “Document”) has been prepared by one or more
5
Engineering Committees or Formulating Groups of the Telecommunications Industry Association
6
(“TIA”). TIA is not the author of the Document contents, but publishes and claims copyright to the
7
Document pursuant to licenses and permission granted by the authors of the contents.
8
TIA Engineering Committees and Formulating Groups are expected to conduct their affairs in
9
accordance with the TIA Engineering Manual (“Manual”), the current and predecessor versions of
10
which are available at TIA’s
11
function is to administer the process, but not the content, of document preparation in accordance
12
with the Manual and, when appropriate, the policies and procedures of the American National
13
Standards Institute (“ANSI”). TIA does not evaluate, test, verify or investigate the information,
14
accuracy, soundness, or credibility of the contents of the Document. In publishing the Document,
15
TIA disclaims any undertaking to perform any duty owed to or for anyone.

31
suggested or provided in the Manual have been complied with as respects the Document or its
32
contents.
33
TIA does not enforce or monitor compliance with the contents of the Document. TIA does not
34
certify, inspect, test or otherwise investigate products, designs or services or any claims of
35
compliance with the contents of the Document.
36
ALL WARRANTIES, EXPRESS OR IMPLIED, ARE DISCLAIMED, INCLUDING WITHOUT 37
LIMITATION, ANY AND ALL WARRANTIES CONCERNING THE ACCURACY OF THE 38
CONTENTS, ITS FITNESS OR APPROPRIATENESS FOR A PARTICULAR PURPOSE OR 39
USE, ITS MERCHANTABILITY AND ITS NON-INFRINGEMENT OF ANY THIRD PARTY’S 40
INTELLECTUAL PROPERTY RIGHTS. TIA EXPRESSLY DISCLAIMS ANY AND ALL 41
RESPONSIBILITIES FOR THE ACCURACY OF THE CONTENTS AND MAKES NO 42
REPRESENTATIONS OR WARRANTIES REGARDING THE CONTENT’S COMPLIANCE WITH 43
ANY APPLICABLE STATUTE, RULE OR REGULATION, OR THE SAFETY OR HEALTH 44
EFFECTS OF THE CONTENTS OR ANY PRODUCT OR SERVICE REFERRED TO IN THE 45
DOCUMENT OR PRODUCED OR RENDERED TO COMPLY WITH THE CONTENTS. 46
47
02/04/05 SP-3-4426-AD10 to be published as TIA-568-B.2-1 Draft 2.0 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
LIMITATION ANY AND ALL INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES 3
(INCLUDING DAMAGES FOR LOSS OF BUSINESS, LOSS OF PROFITS, LITIGATION, OR THE LIKE), 4
WHETHER BASED UPON BREACH OF CONTRACT, BREACH OF WARRANTY, TORT (INCLUDING 5

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......................................................................................................3

13
5.1

Component test configurations ......................................................................................... 3


20
6.1.4

Bundled and hybrid cable ......................................................................................... 5

21
6.2

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

22
6.3

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

23
7

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

24
7.1

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

25
7.1.1

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


32
7.2.1.1

Cable pair-to-pair NEXT loss............................................................................ 10

33
7.2.1.2

Connecting hardware pair-to-pair NEXT loss................................................... 11

34
7.2.1.3

Work area, equipment, and patch cord pair-to-pair NEXT loss ....................... 12

35
7.2.1.4

Channel pair-to-pair NEXT loss........................................................................ 14

36
7.2.1.5

Permanent link pair-to-pair NEXT loss ............................................................. 15

37
7.2.2

Power sum NEXT loss............................................................................................. 16


44
7.3.1.2

Connecting hardware pair-to-pair FEXT loss ................................................... 20

45
7.3.1.3

Channel pair-to-pair ELFEXT ........................................................................... 21

46
7.3.1.4

Permanent link pair-to-pair ELFEXT ................................................................ 22

47
7.3.2

Power sum ELFEXT ................................................................................................ 23

48
PN-3-4426-AD10, draft 2.0 (to be published as TIA/EIA-568-B.2-10)
ii
7.3.2.1

Cable power sum ELFEXT ............................................................................... 23

1
7.3.2.2


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

8
7.4.5

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

9
7.4.5.1

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

10
7.4.5.2

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

11
7.5

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

12
7.5.1

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

13
7.5.2


Connecting hardware TCL ............................................................................... 34

20
7.6.2

Equal Level transverse conversion transfer loss (ELTCTL).................................... 34

21
7.6.2.1

Cable ELTCTL.................................................................................................. 35

22
7.6.2.2

Connecting hardware TCTL ............................................................................. 36

23
7.7

ANEXT loss and PSANEXT loss .................................................................................... 36

24
7.7.1

Cable PSANEXT loss .............................................................................................. 36

25
7.7.2


Cable PSAELFEXT.................................................................................................. 39

32
7.9.2

Connecting hardware PSAFEXT loss...................................................................... 39

33
7.9.3

Channel PSAELFEXT.............................................................................................. 39

34
7.9.4

Permanent Link PSAELFEXT.................................................................................. 40

35
7.10

Average AELFEXT and PSAELEXT loss...................................................................... 40

36
7.10.1

Channel PSAELFEXT.............................................................................................. 40

37
Annex A Cabling measurement requirements (normative) ..........................................................41



Results ............................................................................................................................ 43

45
Annex C Connecting hardware ANEXT loss and AFEXT loss reference test procedure 46
(normative)....................................................................................................................................44

47
C.1

Purpose........................................................................................................................... 44

48
PN-3-4426-AD10, draft 2.0 (to be published as TIA/EIA-568-B.2-10)

iii
C.2

Measurement procedure................................................................................................ 44

1
C.3

Network analyzer and test fixture settings .................................................................... 44

2
C.4

Measurement floor .......................................................................................................... 44


D.3

Channel construction ...................................................................................................... 47

11
D.4

Determining number of disturbing components .............................................................. 48

12
D.5

Determining significance................................................................................................. 48

13
D.6

Victim and disturbing channel configuration ................................................................... 48

14
D.7

Channel ANEXT loss and AFEXT loss measurements and computations .................... 49

15
Annex E Field measurement method for alien crosstalk (normative) ..........................................50

16
E.1


Permanent link testing ............................................................................................. 51

23
E.5.3

Measurement floor of the test device and patch/test cord PSANEXT loss ............. 51

24
E.5.4

Measurement floor of the test device for the channel test configuration................. 51

25
E.5.5

Measurement floor of the test device with permanent link adapter test cords ........ 52

26
E.6

Alien Crosstalk measurements ....................................................................................... 52

27
E.6.1

Measuring PSANEXT loss in the channel configuration ......................................... 52

28
E.6.2



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

36
G.2

Network analyzer test configuration................................................................................ 58

37
G.3

Augmented category 6 modular plug cord test procedure.............................................. 59

38
G.4

Augmented category 6 modular plug cord test head requirements................................ 59

39
G.4.1

Augmented category 6 modular cord test head NEXT loss .................................... 59

40
G.4.2

Augmented category 6 modular cord test head FEXT loss..................................... 60

41
PN-3-4426-AD10, draft 2.0 (to be published as TIA/EIA-568-B.2-10)

H.2.2.1

Test fixture common mode impedance match ................................................. 61

8
H.2.2.2

Balun terminations............................................................................................ 61

9
H.2.2.3

Resistor terminations........................................................................................ 61

10
H.3

Modular outlet test considerations .................................................................................. 62

11
H.3.1

Test plug construction.............................................................................................. 62

12
H.3.2

Test plug qualification .............................................................................................. 62

13

H.4

Augmented category 6 Test plug FEXT loss .................................................................. 68

20
H.4.1

Augmented category 6 FEXT loss measurement reproducibility between labs...... 68

21
H.5

Test plug return loss testing............................................................................................ 69

22
H.5.1

Return loss test lead considerations........................................................................ 69

23
H.5.2

Test Plug Return loss requirements ........................................................................ 69

24
H.5.3

Test plug return Loss measurement procedure ...................................................... 69

25

Through calibration .................................................................................................. 73

32
I.4

Test lead return loss measurement using pyramid impedance management fixture..... 73

33
I.5

Termination of inactive pairs for FEXT loss measurement ......................................... 74

34
I.6

Direct measurement fixture detailed construction .......................................................... 74

35
I.7

Test plug delay and port extension ................................................................................. 75

36
I.8

Calibration and reference plane location ........................................................................ 75

37
I.9


5
Figure C.1 - Connecting hardware ANEXT loss measurement setup .......................................... 45

6
Figure D.1 - Example of a “6 around 1” cable arrangement in a channel ....................... 48

7
Figure D.2 - Connector arrangement from an 8-port panel, in which 5 of the connectors are 8
significant disturbers............................................................................................................... 48

9
Figure E.1 - Schematic diagram of the measurement floor of the test device .............................. 51

10
Figure E.2 - Testing the measurement floor with permanent link adapters. ................................. 52

11
Figure E.3 - Schematic diagram to measure channel PSANEXT loss.......................................... 52

12
Figure E.4 - Schematic diagram for channel PSAFEXT measurement ........................................ 53

13
Figure E.5 - Measurement of the insertion loss of the victim cable and return path..................... 53

14
Figure E.6 - Alien FEXT loss measurement when separate measurement signaling path is 15
available ................................................................................................................................. 54

16

Figure I.5 - Test setup for measurement of test lead return loss .................................................. 73

29
Figure I.6 - Exploded assembly of the coaxial termination reference test head ........................... 74

30
Figure I.7 - Detailed view of the coaxial termination reference test head interface ...................... 75

31
Figure I.8 - Example of coaxial test head shorting plug ................................................................ 77

32
33
LIST OF TABLES
34
35
Table 1- Matrix of backward compatible mated component performance ...................................... 1

36
Table 2 - Augmented category 6 cable insertion loss @ 20 °C ± 3°C (68° F ± 5.5 °F) .................. 6

37
Table 3 – Augmented category 6 connecting hardware insertion loss ........................................... 7

38
Table 4 – Augmented category 6 channel insertion loss ................................................................ 8

39
Table 5 – Augmented category 6 permanent link insertion loss ..................................................... 9


Table 15 – Augmented category 6 permanent link NEXT loss, worst pair-to pair ........................ 15

52
Table 16 - Augmented category 6 cable power sum NEXT loss @ 20 °C ± 3 °C (68 °F ± 5.5° F)16

53
PN-3-4426-AD10, draft 2.0 (to be published as TIA/EIA-568-B.2-10)
vi
Table 17 – Augmented category 6 channel PSNEXT loss............................................................ 17

1
Table 18 – Augmented category 6 channel PSNEXT loss............................................................ 17

2
Table 19 – Augmented category 6 channel PSNEXT loss (field measurements) ........................ 18

3
Table 20 – Augmented category 6 permanent link power sum NEXT loss requirements ............ 18

4
Table 21 – Augmented category 6 permanent link power sum NEXT loss values ....................... 18

5
Table 22 – Augmented category 6 cable ELFEXT @ 20 °C ± 3 °C (68 °F ± 5.5 °F), 6
worst pair-to-pair .................................................................................................................... 19

7
Table 23 – Augmented category 6 connecting hardware FEXT loss, worst pair-to-pair .............. 20

8

°C (68 °F ± 5.5 °F), for a length of 100 m (328 ft) .................................................................. 27

21
Table 34 - Augmented category 6 stranded conductor cable return loss at 20 °C ± 3 °C (68 °F ± 22
5.5 °F),f or a length of 100 m (328 ft) ..................................................................................... 27

23
Table 35 – Augmented category 6 connecting hardware return loss ........................................... 28

24
Table 36 - Augmented category 6 connecting hardware return loss ............................................ 28

25
Table 37 - Augmented category 6 modular patch cord return loss ............................................... 29

26
Table 38 - Augmented category 6 work area, equipment, and patch cord return loss ................. 29

27
Table 39 – Augmented Category 6 channel return loss................................................................ 30

28
Table 40 – Augmented category 6 channel return loss................................................................. 30

29
Table 41 – Augmented category 6 permanent link return loss ..................................................... 31

30
Table 42 – Augmented category 6 permanent link return loss ..................................................... 31


43
Table 52 – Augmented category 6 channel average PSANEXT loss at 20 °C ± 3 °C 44
(68 °F ± 5.5 °F)....................................................................................................................... 38

45
Table 53 – Augmented category 6 channel PSAELFEXT at 20 °C ± 3 °C (68 °F ± 5.5 °F) ......... 39

46
Table 54 – Augmented category 6 channel average PSAELFEXT loss requirements at 47
20 °C ± 3 °C (68 °F ± 5.5 °F).................................................................................................. 40

48
Table 55 – Augmented category 6 channel average PSAELFEXT loss at 20 °C ± 3 °C 49
(68 °F ± 5.5 °F)....................................................................................................................... 40

50
Table A.1 - Test balun performance characteristics...................................................................... 41

51
Table G.1 - Augmented Category 6 modular cord test head return loss ...................................... 60

52
Table H.1 - Direct measurement fixture residual NEXT loss and return loss ............................... 63

53
PN-3-4426-AD10, draft 2.0 (to be published as TIA/EIA-568-B.2-10)

vii
Table H.2 – Augmented category 6 de-embedded test plug NEXT loss limits ............................. 65


viii
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

area. If different category components are to be mixed with augmented category 6 components, 22
then the combination shall meet the transmission requirements of the lower performing category. 23
See table 1 for a matrix of mated component performance representative of backward compatibility. 24
To ensure generic cabling system performance, component requirements are specified to support 25
interoperability when products from different manufacturers are mated. 26
Table 1- Matrix of backward compatible mated component performance 27
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.
28
Testing according to the procedures of this standard is intended to ensure backward compatibility 29
with category 6. 30

ASTM D 4566-98, Standard Test Methods for Electrical Performance Properties of Insulations and 22
Jackets for Telecommunications Wire and Cable, 1998 23
IEC 60603-7, Connectors for frequencies below 3 MHz for use with printed boards – Part 7: Detail 24
specification for connectors, 8-way, including fixed and free connectors with common mating 25
features, with assessed quality, 1996 26
4 DEFINITIONS, ACRONYMS & ABBREVIATIONS 27
4.1 Definitions 28
The generic definitions in this section have been formulated for use by the entire family of 29
telecommunications infrastructure standards. As such, the definitions do not contain mandatory 30
requirements of the Standard. Specific requirements are found in the normative sections of this 31
Standard. 32
Alien crosstalk: Signal coupling from disturbing pairs into a disturbed pair of a neighboring 33
channel or part thereof. 34
Alien near-end crosstalk (ANEXT) loss: Signal coupling from near-end disturbing channel pairs 35
into a disturbed pair of a neighboring channel or part thereof, measured at the near-end. 36
Power sum alien near-end crosstalk (PSANEXT) loss: A computation of signal coupling from 37
multiple near-end disturbing channel pairs into a disturbed pair of a neighboring channel or part 38
thereof, measured at the near-end. 39
Alien far-end crosstalk (AFEXT) loss: Signal coupling from near-end disturbing channel pairs into 40
a disturbed pair of a neighboring channel or part thereof, measured at the far-end. 41
Power sum alien far-end crosstalk (PSAFEXT) loss: A computation of signal coupling from 42
multiple near-end disturbing channel pairs into a disturbed pair of a neighboring channel or part 43
thereof, measured at the far-end. 44
PN-3-4426-AD10, draft 2.0 (to be published as TIA/EIA-568-B.2-10) 6/30/2005

3
4.2 Acronyms and abbreviations 1
AFEXT Alien far-end crosstalk 2
ANEXT Alien near-end crosstalk 3
CM Common mode 4

35
36
37
Figure 1 - Supplemental schematic representation of a channel test configuration 38
39
Legend

Cables and cords Connecting hardware
Work area cord ..................................A Telecommunications outlet/
Optional transition cabling .................B connector ....................................WA
Horizontal cabling ............................. C Optional transition/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)

Work area
equipment
A B C
D
E

Equipment
in TR
CP WA
C1 C2
Channel under test

29
Augmented Category 6: This designation applies to 100 Ω cables whose transmission 30
characteristics are specified up to 500 MHz. 31
6.1.1 Horizontal cable 32
Four-pair 100 Ω UTP and ScTP cables are recognized for use in augmented category 6 horizontal 33
cabling systems. The cable shall consist of 22 AWG to 24 AWG thermoplastic insulated solid 34
conductors that are formed into four individually twisted-pairs and enclosed by a thermoplastic 35
jacket. The cable shall meet all of the mechanical requirements of ANSI/ICEA S-80-576 applicable 36
to four-pair inside wiring cable for plenum or general cabling within a building. In addition to the 37
applicable requirements of ANSI/ICEA S-90-661-1994, the physical design of horizontal cables 38
shall meet the requirements of clauses 4.3.3.1 to 4.3.3.6 of ANSI/TIA/EIA-568-B.2. 39
40
NOTE – Additional requirements for 100 Ω ScTP cables are located in annex K of 41
ANSI/TIA/EIA-568-B.2.

42
6.1.2 Cable for cords 43
Cable used for patch cords, equipment cords, and work area cords is critical to transmission 44
performance. Cable used for augmented Category 6 cords and cordage shall meet the applicable 45
requirements of clauses 6.1 through 6.3 of ANSI/TIA/EIA-568-B.2 and clause 7 this Standard. 46
47
Legend

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


11
6.1.4 Bundled and hybrid cable 12
Bundled and hybrid cables may be used for horizontal and backbone cabling provided that each 13
cable type is recognized (see clause 6.1.1 of this Standard and clause 4.4 of 14
ANSI/TIA/EIA-568-B.1) and meets the transmission and color-code specifications for that cable 15
type as given in ANSI/TIA/EIA-568-B.2, ANSI/TIA/EIA-568-B.3, and clause 7 of this Standard.

16

17
NOTES, 18
1 Hybrid UTP cables (color coded per ANSI/TIA/EIA-568-B.2, clause 4.3.3.3) can be 19
distinguished from multipair UTP backbone cables (color coded per clause 4.4.3.3 of 20
ANSI/TIA/EIA-568-B.2) by the color coding scheme and by the transmission requirements. 21
2 Hybrid cables consisting of optical fiber and copper conductors are sometimes referred 22
to as composite cables.

23
24
The individual cables within a bundled cable shall meet the applicable requirements in clause 4 of 25
ANSI/TIA/EIA-568-B.3, clause 4 of ANSI/TIA/EIA-568-B.2, annex K of ANSI/TIA/EIA-568-B.2, 26
annex M of ANSI/TIA/EIA-568-B.2, and clause 7 of this Standard after bundle formation. 27
6.2 Recognized connecting hardware 28
The following category of twisted-pair connecting hardware is recognized in addition to those 29
identified in clause 5.4.1 of ANSI/TIA/EIA-568-B.2: 30
31
Augmented Category 6: This designation applies to 100 Ω connecting hardware whose 32
transmission characteristics are specified from 1 MHz to 500 MHz. 33
6.3 Cords 34

per °C from 20 °C to 60 °C. 16
17
For all frequencies from 1 MHz to 500 MHz, augmented category 6 UTP and ScTP stranded 18
conductor cable insertion loss shall meet the values determined using equation (2). Stranded 19
conductor cable insertion loss shall be measured at 20 ± 3° C or corrected to a temperature of 20
20 °C using a 0.4 %/°C correction factor for the measured insertion loss. 21

22
mcablemcablestranded
ossInsertionLossInsertionL
100,100,_
2.1 ⋅≤
dB (2) 23
24
Table 2 - Augmented category 6 cable insertion loss @ 20 °C ± 3°C (68° F ± 5.5 °F) 25
26
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

10.00 0.1
16.00 0.1
20.00 0.1
25.00 0.1
31.25 0.1
62.50 0.2
100.00 0.2
200.00 0.3
250.00 0.3
300.00 0.3
400.00 0.4
500.00 0.4
11
12
6/30/2005 PN-3-4426-AD10, draft 2.0 (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
ffffossInsertionL
channel
02.04)/2.001.08.1(05.1 ⋅+++≤
dB (4) 10
11

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 permanent link insertion loss requirement is derived using the insertion loss 23
contribution of 3 connections. 24
2 The channel insertion loss requirement is derived using the insertion loss contribution 25
of 4 connections. 26
3 For the purposes of field measurements, calculated channel limits that result in 27
insertion loss values less than 3 dB revert to a requirement of 3 dB maximum (see 28
ANSI/TIA/EIA-568-B.2-3). 29
30
PN-3-4426-AD10, draft 2.0 (to be published as TIA/EIA-568-B.2-10) 6/30/2005

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). The values in table 5 are provided for 3
information only. 4
∑ ∑
+=
cableconnlinkperm
ossInsertionLossInsertionLossInsertionL
_
5


20
21
5.1
_
00015.0
18.0
009.068.1 f
f
ffossInsertionL
linkperm
+++≤
dB (TBD) (9) 22
23
Table 5 – Augmented category 6 permanent link insertion loss 24
25
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

)100/log(153.44 fNEXT
cable
−≥
dB (10) 19
20
Table 6 - Augmented category 6 cable NEXT loss @ 20 °C ± 3 °C (68 °F ± 5.5° F), 21
worst pair-to-pair 22
23
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
24

(MHz)
NEXT loss
(dB)
1.00 94.0 (TBD)
4.00 82.0 (TBD)
8.00 75.9 (TBD)
10.00 74.0 (TBD)
16.00 69.9 (TBD)
20.00 68.0 (TBD)
25.00 66.0 (TBD)
31.25 64.1 (TBD)
62.50 58.1 (TBD)
100.00 54.0 (TBD)
200.00 48.0 (TBD)
250.00 46.0 (TBD)
300.00 42.9 (TBD)
400.00 37.9 (TBD)
500.00 34.0 (TBD)
13
14
6/30/2005 PN-3-4426-AD10, draft 2.0 (to be published asTIA/EIA-568-B.2-10)
12
7.2.1.3 Work area, equipment, and patch cord pair-to-pair NEXT loss 1
Work area, equipment, and patch cords shall pass the requirements of this clause. Modular plug 2
cords shall be measured in accordance with annex G. The measured NEXT loss of modular plug 3
cords shall exceed the values calculated in equation (11). 4
5
( )
RFEXT
conn

where: 7
( )( )












+⋅+−
+
−
−=
20
2
10
20
10log20
conn
IL
cable
IL
conn
NEXT
conn

cable
NEXT
46.0
1log10
100,
(14) 11
12
conn
NEXT
is the mated NEXT loss at 100 MHz assigned to the local and remote patch cord test 13
adapter, in dB as shown in table 9, 14
Table 9 - Mated NEXT loss assigned to local and remote patch cord test adapter 15
Frequency
(MHz)
NEXT loss
(dB)
1 ≤ f < 250
250 ≤ f ≤ 500

54-20log(
f/
100) (TBD)
46.04-40log(
f/
250) (TBD)

16
where: 17
f
is the frequency in MHz, NEXT is in dB, and cable length is in meters. 18

NEXT
100,
is the NEXT loss test limit for 100 m cable as specified in clause 7.2.1.1. 5

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

10
Calculations that result in NEXT loss limit values in excess of 65 dB shall revert to a limit of 65 dB. 11
The values in table 10 are provided for information only. 12
Table 10 - Example Augmented Category 6 modular plug cord NEXT loss limits, dB 13
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

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

20
))100/log(2054(
102
20
))100/log(153.44(
10log(20
−
⋅−
−−
⋅+
−−
−≥
f
ff
channel
NEXT
dB (16) 18
19
20
PN-3-4426-AD10, draft 2.0 (to be published as TIA/EIA-568-B.2-10) 6/30/2005

15
The values in the table 13 are provided for information only. 1
2
Table 13 – Augmented category 6 channel NEXT loss, worst pair-to-pair (field 3
measurements) 4
5
Frequency
(MHz)
NEXT loss

10
20
))100/log(153.44(
10log(20
ff
NEXT
PL
−−
+
−−
−≥)300/log(13.3334 fNEXT
PL
−≥ 13
14
Table 15 – Augmented category 6 permanent link NEXT loss, worst pair-to pair 15
16
Frequency
(MHz)
NEXT loss
(dB)
1.00 65.0
4.00 64.1
8.00 59.4
10.00 57.8