ISO/IEC 11801:2002/Amd 2:2010

ISO/IEC 11801
Edition 2.0 2010-04
INTERNATIONAL
STANDARD

AMENDMENT 2
Information technology – Generic cabling for customer premises


ISO/IEC 11801:2002/A2:2010(E)

---------------------- Page: 1 ----------------------
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ISO/IEC 11801
Edition 2.0 2010-04
INTERNATIONAL
STANDARD

AMENDMENT 2
Information technology – Generic cabling for customer premises


INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XA
ICS 35.200 ISBN 978-2-88910-819-0

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– 2 – 11801 Amend. 2 © ISO/IEC:2010(E)
FOREWORD
Amendment 2 to International Standard ISO/IEC 11801 was prepared by subcommittee 25:
Interconnection of information technology, of ISO/IEC joint technical committee 1: Information
technology.
This International Standard has been approved by vote of the member bodies, and the voting
results may be obtained from the address given on the second title page.
__________
INTRODUCTION
Add, at the end of the existing introductions the following text:
INTRODUCTION to Amendment 2
Amendment 2 of ISO/IEC 11801:2002 provides balanced cabling models, requirements and
normative references for Category 6 and Category 7 components, requirements for Class
A A
E and Class F links, together with amendments to the requirements for optical fibre cabling.
A A
Global change:
Replace, throughout ISO/IEC 11801:2002 and Amendment 1:2008 “optical fibre channel” by
“optical fibre cabling channel”.
2 Normative references
Replace the entire existing Clause 2 of both ISO/IEC 11801:2002, as well Amendment 1:2008,
by the following:
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
The provisions of the referenced specifications other than ISO/IEC, IEC, ISO and ITU
documents, as identified in this clause, are valid within the context of this International
Standard. The reference to such a specification within this International Standard does not
give it any further status within ISO or IEC. In particular, it does not give the referenced
specification the status of an International Standard.
IEC 60352 (all parts), Solderless connections
IEC 60352-3, Solderless connections – Part 3: Solderless accessible insulation
displacement connections – General requirements, test methods and practical guidance
IEC 60352-4, Solderless connections – Part 4: Solderless non-accessible insulation
displacement connections – General requirements, test methods and practical guidance
IEC 60352-5, Solderless connections – Part 5: Press-in connections – General
requirements, test methods and practical guidance
IEC 60352-6, Solderless connections – Part 6: Insulation piercing connections – General
requirements, test methods and practical guidance

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11801 Amend. 2 © ISO/IEC:2010(E) – 3 –
IEC 60352-7, Solderless connections – Part 7: Spring clamp connections – General
requirements, test methods and practical guidance
IEC 60352-8, Solderless connections – Part 8: Compression mount connections – General
1
requirements, test methods and practical guidance
IEC 60364-1, Low-voltage electrical installations – Part 1: Fundamental principles,
assessment of general characteristics, definitions
IEC 60512-2-1, Connectors for electronic equipment – Tests and measurements – Part 2-1:
Electrical continuity and contact resistance tests – Test 2a: Contact resistance – Millivolt level
method
IEC 60512-3-1, Connectors for electronic equipment – Tests and measurements – Part 3-1:
Insulation tests – Test 3a: Insulation resistance
IEC 60512-4-1, Connectors for electronic equipment – Tests and measurements – Part 4-1:
Voltage stress tests – Test 4a: Voltage proof
IEC 60512-5-2, Connectors for electronic equipment – Tests and measurements – Part 5-2:
Current-carrying capacity tests – Test 5b: Current-temperature derating
IEC 60512-25-1, Connectors for electronic equipment – Tests and measurements –
Part 25-1: Test 25a – Crosstalk ratio
IEC 60512-25-2:2002, Connectors for electronic equipment – Tests and measurements –
Part 25-2: Test 25b – Attenuation (insertion loss)
IEC 60512-25-4:2001, Connectors for electronic equipment – Tests and measurements –
Part 25-4: Test 25d – Propagation delay
IEC 60512-25-5, Connectors for electronic equipment – Tests and measurements –
Part 25-5: Test 25e – Return loss
IEC 60512-25-9:2008, Connectors for electronic equipment – Tests and measurements –
Part 25-9: Signal integrity tests – Test 25i: Alien crosstalk
IEC 60512-26-100, Connectors for electronic equipment – Tests and measurements –
Part 26-100: Measurement setup, test and reference arrangements and measurements for
connectors according to IEC 60603-7 – Tests 26a to 26g
IEC 60603-7, Connectors for electronic equipment – Part 7: Detail specification for 8-way,
unshielded, free and fixed connectors
IEC 60603-7-1, Connectors for electronic equipment – Part 7-1: Detail specification for
8-way, shielded free and fixed connectors
IEC 60603-7-2:–, Connectors for electronic equipment – Part 7-2: Detail specification for
8-way, unshielded, free and fixed connectors, for data transmissions with frequencies up to
2
100 MHz
___________
1
 To be published.
2
 Second edition to be published.

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– 4 – 11801 Amend. 2 © ISO/IEC:2010(E)
IEC 60603-7-3:–, Connectors for electronic equipment – Part 7-3: Detail specification for 8-
way, shielded, free and fixed connectors, for data transmissions with frequencies up to
3
100 MHz
IEC 60603-7-4:–, Connectors for electronic equipment – Part 7-4: Detail specification for 8-
way, unshielded, free and fixed connectors, for data transmissions with frequencies up to
4
250 MHz
IEC 60603-7-5:–, Connectors for electronic equipment – Part 7-5: Detail specification for 8-
way, shielded, free and fixed connectors, for data transmissions with frequencies up to
5
250 MHz
IEC 60603-7-7:–, Connectors for electronic equipment – Part 7-7: Detail specification for 8-
way, shielded, free and fixed connectors, for data transmission with frequencies up to
6
600 MHz
IEC 60603-7-41:–, Connectors for electronic equipment – Part 7-41: Detail specification for
8-way, unshielded, free and fixed connectors, for data transmissions with frequencies up to
500 MHz
IEC 60603-7-51:–, Connectors for electronic equipment – Part 7-51: Detail specification for
8-way, shielded, free and fixed connectors, for data transmissions with frequencies up to
500 MHz
IEC 60603-7-71:–, Connectors for electronic equipment – Part 7-71: Detail specification for
8-way, shielded, free and fixed connectors, for data transmission with frequencies up to
7
1 000 MHz
IEC 60793-1-40, Optical fibres – Part 1-40: Measurement methods and test procedures –
Attenuation
IEC 60793-1-44, Optical fibres – Part 1-44: Measurement methods and test procedures –
Cut-off wavelength
IEC 60793-1-49, Optical fibres – Part 1-49: Measurement methods and test procedures –
Differential mode delay
IEC 60793-2:2007, Optical fibres – Part 2: Product specifications – General
IEC 60793-2-10, Optical fibres – Part 2-10: Product specifications – Sectional specification
for category A1 multimode fibres
IEC 60793-2-50, Optical fibres – Part 2-50: Product specifications – Sectional specification
for class B single-mode fibres
IEC 60794 (all parts), Optical fibre cables
IEC 60794-2, Optical fibre cables – Part 2: Indoor cables – Sectional specification
___________
3
 Second edition to be published.
4
 Second edition to be published.
5
 Second edition to be published.
6
 Third edition to be published.
7
 To be published.

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11801 Amend. 2 © ISO/IEC:2010(E) – 5 –
IEC 60825 (all parts), Safety of laser products
IEC 60874-19-1:2007, Fibre optic interconnecting devices and passive components
Connectors for optical fibres and cables – Part 19-1: Fibre optic patch cord connector
type SC-PC (floating duplex) standard terminated on multimode fibre type A1a, A1b – Detail
specification
IEC 60874-19-2:1999, Connectors for optical fibres and cables – Part 19-2: Fibre optic
adaptor (duplex) type SC for single-mode fibre connectors – Detail specification
IEC 60874-19-3:2007, Fibre optic interconnecting devices and passive components –
Connectors for optical fibres and cables – Part 19-3 Fibre optic adaptor (duplex) type SC for
multimode fibre connectors – Detail specification
IEC 61073-1, Fibre optic interconnecting devices and passive components – Mechanical
splices and fusion splice protectors for optical fibres and cables – Part 1: Generic
specification
IEC 61076-3-104, Connectors for electronic equipment – Part 3-104: Detail specification for
8-way, shielded free and fixed connectors for data transmissions with frequencies up to
1 000 MHz
IEC 61076-3-110, Connectors for electronic equipment – Part 3-110: Detail specification for
shielded, free and fixed connectors for data transmission with frequencies up to 1 000 MHz
IEC 61156 (all parts), Multicore and symmetrical pair/quad cables for digital communications
IEC 61156-1:2007, Multicore and symmetrical pair/quad cables for digital communications –
Part 1: Generic specification
Amendment 1 (2009)
IEC 61156-2:, Multicore and symmetrical pair/quad cables for digital communications –
Part 2: Symmetrical pair/quad cables with transmission characteristics up to 100 MHz –
Horizontal floor cable – Sectional specification
IEC 61156-3:2008, Multicore and symmetrical pair/quad cables for digital communications –
Part 3: Work area wiring – Sectional specification
IEC 61156-4:2009, Multicore and symmetrical pair/quad cables for digital communications –
Part 4: Riser cables – Sectional specification
IEC 61156-5:2009, Multicore and symmetrical pair/quad cables for digital communications –
Part 5: Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz –
Horizontal floor wiring – Sectional specification
IEC 61156-6, Multicore and symmetrical pair/quad cables for digital communications –
Part 6: Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz –
8
Work area wiring – Sectional specification
IEC 61300-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 1: General and guidance
IEC 61300-2-2:1995, Fibre optic interconnecting devices and passive components – Basic
test and measurement procedures – Part 2-2: Tests – Mating durability
___________
8
 Refers to the third edition which is currently in preparation

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– 6 – 11801 Amend. 2 © ISO/IEC:2010(E)
IEC 61300-3-6:1997, Fibre optic interconnecting devices and passive components – Basic
test and measurement procedures – Part 3-6: Examinations and measurements – Return loss
Amendment 1:1998
Amendment 2:1999
IEC 61300-3-34:2001, Fibre optic interconnecting devices and passive components – Basic
test and measurement procedures – Part 3-34: Examinations and measurements –
Attenuation of random mated connectors
IEC 61754-20:2002, Fibre optic connector interfaces – Part 20: Type LC connector family
IEC 61935-1, Specification for the testing of balanced communication cabling in accordance
with ISO/IEC 11801 – Part 1: Installed cabling
IEC 61935-2, Testing of balanced communication cabling in accorance with
ISO/IEC 11801 – Part 2: Patch cords and work area cords
IEC 62153-4-12, Metallic communication cable test methods – Part 4-12: Electromagnetic
compatibility (EMC) – Coupling attenuation or screened attenuation of connecting hardware –
Absorbing clamp method
ISO/IEC TR 14763-2:2000, Information technology – Implementation and operation of
customer premises cabling – Part 2: Planning and installation
ISO/IEC 14763-3, Information technology – Implementation and operation of customer
premises cabling – Part 3: Testing of optical fibre cabling
ISO/IEC 15018, Information technology – Generic cabling for homes
ISO/IEC 18010, Information technology – Pathways and spaces for customer premises
cabling
ISO/IEC TR 24750:2007, Information technology – Assessment and mitigation of installed
balanced cabling channels in order to suport 10GBASE-T
ITU-T Recommendation O.9: Measuring arrangements to assess the degree of unbalance
about earth
3.1 Terms and definitions
Add the following new terms and definitions:
3.1.84
cabled optical fibre category
system of defining requirements for the cabled optical fibre performance within optical fibre
cabling channels and links
9
NOTE Also referred to as performance codes in some standards.
3.1.85
equipment interface
location where a connection between equipment and the cabling system occurs
___________
9
 Standards developed by IEC subcommittee 86C use this definition in support of JTC 1/SC25 standards.

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11801 Amend. 2 © ISO/IEC:2010(E) – 7 –
3.1.86
test interface
location where a connection between test equipment and the cabling to be tested occurs
3.1.74
Replace, in ISO/IEC 11801:2002, the existing definition 3.1.56 for the term “small form factor
connector” (renumbered as 3.1.74 by Amendment 1:2008) by the following:
3.1.74
small form factor connector
optical fibre connector designed to accommodate two or more optical fibres with at least the
same mounting density as achievable within the IEC 60603-7 series
3.2 Abbreviations
Add the following new abbreviations:
EI Equipment interface
TI Test interface
10
4 Conformance
Replace, in Amendment 1:2008, point 2) of item b) by the following:
2) attachment of appropriate components to a permanent link or CP link design meeting the
prescribed performance class of Clause 6 and Annex A. Channel performance shall be
ensured where a channel is created by adding more than one cord to either end of a link
meeting the requirements of Annex A;
Delete, in Amendment 1:2008, the following text and referenced footnote:
4
Until amendment 2 of ISO/IEC 11801:2002 has been published:
• conformance for Classes D, E and F with regards to TCL, ELTCTL and coupling
attenuation can only be achieved by option 1) above;
• conformance for Classes E and F can only be achieved by option 1) above.
A A
Add, after bullet h), the following text:
Test methods to assess conformance with the channel and link requirements of Clause 6 and
Annex A respectively are specified in IEC 61935-1 for balanced cabling and ISO/IEC 14763-3
for optical fibre cabling. The treatment of measured results that fail to meet the requirements
of Clause 6 and Annex A respectively, or lie within the relevant measurement accuracy, shall
be clearly documented within a quality plan as described in ISO/IEC 14763-2.
Installation and administration of cabling in accordance with this International Standard shall
be undertaken in accordance with ISO/IEC 14763-2.
This International Standard does not specify which tests and sampling levels should be
adopted. The test parameters to be measured and the sampling levels to be applied for a
particular installation shall be defined in the installation specification and quality plans for that
installation prepared in accordance with ISO/IEC 14763-2.
___________
10
The entire Clause 4 of ISO/IEC 11801:2002, has been replaced by Amendment 1:2008.

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– 8 – 11801 Amend. 2 © ISO/IEC:2010(E)
5.5 Accommodation of functional elements
Replace, in ISO/IEC 11801:2002, the second sentence of the second paragraph beginning
with “Guidance for …” by the following:
Requirements for the accommodation of distributors are given in ISO/IEC 14763-2 (first
edition). Until ISO/IEC 14763-2 is published, relevant information can be found in
ISO/IEC TR 14763-2.
Replace, in ISO/IEC 11801:2002, the second sentence of the third paragraph beginning with
“Requirements for …” by the following:
Requirements for pathways and cable management systems are provided in ISO/IEC 14763-2
(first edition). Until ISO/IEC 14763-2 is published, relevant information can be found in
ISO/IEC 18010.
5.6.1 Equipment interfaces and test interfaces
Replace, in ISO/IEC 11801:2002, the existing Figure 7 by the following new Figure 7:

Horizontal cabling
EI
EI
EI
C C C C C C
EQP TE
CP
TO
TI TI
TI TI TI
Backbone cabling EI EI EI EI
EQP C C C C C C EQP
TI
TI C = connection TI TI

Key
EI Equipment interface
TI Test interface
Figure 7 – Equipment and test interfaces
5.6.2 Channel and permanent link
Replace, in ISO/IEC 11801:2002, the existing first paragraph of by the following:
The transmission performance of generic cabling is detailed in Clauses 6, 8 and Annex A, in
terms of the channel and the permanent link.
5.7.5.1 General requirements
Replace, in ISO/IEC 11801:2002, the second sentence of the first bullet point by the following:
Requirements on work area size are given in ISO/IEC 14763-2 (first edition). Until
/IEC 14763-2 is published, relevant information can be found in ISO/IEC TR 14763-2.

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11801 Amend. 2 © ISO/IEC:2010(E) – 9 –
Replace the last paragraph by the following:
For balanced cables, 2 pairs per TO may be used as an alternative to 4 pairs. However, this
may require pair reassignment and will not support some applications (see Annex F). Care
should be taken that the initial pair assignment, and all subsequent changes, are recorded
(see ISO/IEC 14763-2 for details of administration requirements. Until ISO/IEC 14763-2 (first
edition) is published, relevant information can be found in ISO/IEC TR 14763-2). Pair
reassignment by means of inserts is allowed.
5.7.6 Consolidation point
Replace, in ISO/IEC 11801:2002, the existing text of bullet point d) by “void”.
6.2 Layout
Delete, in Amendment 1:2008, the NOTE which reads:
NOTE Component performance requirements for Category 6 and Category 7 will be available in Amendment 2
A A
to ISO/IEC 11801:2002.

Delete, in ISO/IEC 11801:2002, the entire fourth paragraph beginning with “Most Class F
channels…”.
Replace, in ISO/IEC 11801:2002, the existing paragraph prior to Figure 11, as well as
Figure 11 by the following:
Figure 11 shows an example of terminal equipment in the work area connected to
transmission equipment using two different media channels which are cascaded. In fact, there
is an optical fibre cabling channel (see Clause 8) connected via an active component in the
FD to a balanced cabling channel. There are four channel interfaces; one at each end of the
balanced channel and one at each end of the optical fibre cabling channel.

BD
C C C C C C C TE
TO
C C C
Optical fibre cabling channel Balanced cabling
channel
C C C
EQP OE EQP
CD FD
= connection
C
= optional connection
C
OE EQP = Opto-electronic equipment

Figure 11 – Example of a system showing the location of cabling interfaces
and extent of associated channels

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– 10 – 11801 Amend. 2 © ISO/IEC:2010(E)
Delete, in Amendment 1:2008, the NOTE which reads:
NOTE Permanent link and CP link requirements for Class E and Class F will be available in amendment 2 to
A A
ISO/IEC 11801:2002.
Delete, in ISO/IEC 11801:2002, the entire last paragraph beginning with “Most Class F
channels…”.
6.3 Classification of balanced cabling
Replace, in ISO/IEC 11801:2002, the second sentence of the second paragraph by the
following:
Similarly, Class B, C, D, E, E , F and F channels provide the transmission performance to
A A
support Class B, C, D, E, E , F and F applications respectively.
A A
6.4.2 Return loss
Replace, in ISO/IEC 11801:2002, the existing first paragraph by he following:
The return loss requirements are applicable to Classes C, D, E, E , F and F only.
A A
6.4.3 Insertion loss/attenuation
Replace, in ISO/IEC 11801:2002, the last paragraph before Table 4 by the following:
When required, the insertion loss shall be measured according to IEC 61935-1.
6.4.5.1 General
Replace, in Amendment 1:2008, the entire text of this subclause by the following:
ACR-N and PS ACR-N requirements are applicable to Classes D, E, E , F and F only.
A A
Except for the name, the definition and equations for ACR-N and PS ACR-N are identical to
those used for ACR and PS ACR, respectively, in prior editions of this standard.
6.4.6.1 General
Replace, in Amendment 1:2008, the first paragraph by the following:
ACR-F and PS ACR-F requirements are applicable to Classes D, E, E , F and F only.
A A
6.4.9 Current carrying capacity

Replace, in ISO/IEC 11801:2002, the existing subclause by the following:
The minimum current carrying capacity for channels of Classes D, E, E , F and F shall be
A A
0,175 A d.c. per conductor for all temperatures at which the cabling will be used. This shall be
achieved by an appropriate design.
For information on current carrying capacity in respect to applications using remote power
supplied over balanced cabling, see ISO/IEC TR 29125.

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11801 Amend. 2 © ISO/IEC:2010(E) – 11 –
6.4.13 Delay skew
Replace, in ISO/IEC 11801:2002, the existing second paragraph by the following:
When required, the delay skew shall be calculated according to IEC 61935-1.
6.4.15.5 PS AFEXT for Class E channels
A
Replace, in Amendment 1:2008, the existing third paragraph by the following:
The measured pair-to-pair AFEXT values of a wire pair k in a disturbed channel from the
disturbing channel l are normalized by the difference of the insertion losses of disturbing and
disturbed channels.
7.1 General
Replace, in ISO/IEC 11801:2002, the existing text by the following:
This clause describes implementations of generic balanced cabling that utilise components
and assemblies referenced in Clauses 9, 10 and 13. These reference implementations meet
the requirements of Clause 5, and when installed in accordance with ISO/IEC 14763-2 (until
ISO/IEC 14763-2 is published, relevant information can be found in ISO/IEC TR 14763-2),
comply with the channel performance requirements of Clause 6.
7.2.1 General
Replace, in ISO/IEC 11801:2002, the first paragraph by the following:
Balanced components referenced in Clauses 9 and 10 are defined in terms of impedance and
category. In the reference implementations of this clause, the components used in each
cabling channel shall have the same nominal impedance in accordance with 9.2.
7.2.2.1 Component choice
Replace, in Amendment 1 to ISO/IEC 11801:2008, the existing bullet points for Category 6
A
and Category 7 by the following:
A
• Category 6 components provide Class E balanced cabling performance;
A A
• Category 7 components provide Class F balanced cabling performance;
A A
7.2.2.2 Dimensions
Replace, in ISO/IEC 11801:2002, the existing Figure 12 by the following:

---------------------- Page: 13 ----------------------
– 12 – 11801 Amend. 2 © ISO/IEC:2010(E)

a) Interconnect - TO Model
Channel = 100 m max.
Fixed horizontal cable
FD
EQP C C C C TE
TO
Equipment
Work area
cord
cord
= connection
C

b) Cros sconnect - T O Model
Channel = 100 m max.
Fixed horizontal cable
FD
EQP C C C C C TE
TO
Equipment Patch cord/
Work area
cord Jumper
cord
= connection
C

c) Interconnect - CP - TO Model
Channel = 100 m max.
Fixed horizontal cable
FD
EQP C C C C C TE
CP TO
Equipment
CP Work area
cord
cable cord
= connection
C

d) Cros sconnect - C P - TO Model
Channel = 100 m max.
Fixed horizontal cable
FD
EQP C C C C C C TE
CP TO
Equipment Patch cord/
CP Work area
cord Jumper
cable cord
= connection
C

Figure 12 – Horizontal cabling models

---------------------- Page: 14 ----------------------
11801 Amend. 2 © ISO/IEC:2010(E) – 13 –
7.2.2.2 Dimensions
Replace, in Amendment 1:2008, the existing paragraph before Table 31 by the following:
Table 31 contains the length assumptions of the mathematical model used to validate channel
performance using components of Clauses 9, 10 and 13. They do not represent absolute
restrictions on the implementation of channels and permanent links, but may be used for
guidance in reference implementations.
11
Table 31
Replace, in Amendment 1:2008, the table title by the following:
Table 31 – Length assumptions used in the mathematical modelling of balanced
horizontal cabling
Add, in Amendment 1:2008, the following text before Table 32:
In addition to the cords, the channels shown in Figure 12c and Figure 12d contain a CP cable.
The insertion loss specification for the CP cable may differ from that of both the fixed
horizontal cable and the cords. In order to accommodate cables used for work area cords, CP
cables, patch cords, jumpers and equipment cords with different insertion loss, the length of
the cables used within a channel shall be determined by the equations shown in Table 32.
Replace, in Amendment 1:2008, Table 32 by the following:
(Note that Table 21 in ISO/IEC 11801:2002 has been replaced and renumbered by Amend-
ment 1:2008 as Table 32.)
Table 32 – Horizontal channel length equations
Implementation equation
Model Figure Class D Class E and E Class F and F
A A
a a
Interconnect - TO 12a H = 109 – FX H = 107 – 3 – FX H = 107 – 2 – FX
a a
Cross-connect - TO – FX H = 106 – 3 – FX
12b H = 107 – FX H = 106 – 3
a a
Interconnect - CP -TO 12c H = 107 – FX – CY H = 106 - 3 – FX – CY H = 106 – 3 – FX – CY
a a
Cross-connect - CP - TO 12d H = 105 – FX – CY H = 105 - 3 – FX – CY H = 105 – 3 – FX – CY
H the maximum length of the fixed horizontal cable (m)
F combined length of patch cords/jumpers, equipment and work area cords (m)
C the length of the CP cable (m)
X the ratio of cord cable insertion loss (dB/m) to fixed horizontal cable insertion loss (dB/m)
Y the ratio of CP cable insertion loss (dB/m) to fixed horizontal cable insertion loss (dB/m)
NOTE For operating temperatures above 20 °C, H should be reduced by 0,2 % per °C for screened cables; 0,4 %
per °C (20 °C to 40 °C) and 0,6 % per °C (>40 °C to 60 °C) for unscreened cables.
a
This length reduction is to provide an allocated margin to accommodate insertion loss deviation.

Move, in Amendment 1:2008, after Table 32 the following text above the bulleted list:
For the purpose of calculation in Table 32 it is assumed that:
___________
11
 Refers to Table 31 as added by Amendment 1 and not Table 31 (renumbered as Table 42 by Amend-
ment 1:2008) in ISO/IEC 11801:2002.

---------------------- Page: 15 ----------------------
– 14 – 11801 Amend. 2 © ISO/IEC:2010(E)
7.2.3.2 Dimensions
Replace, in ISO/IEC 11801:2002, the last sentence of the first paragraph by the following:
This represents the maximum configuration for a Class D, E, E , F or F backbone channel.
A A
Replace, in ISO/IEC 11801:2002, the existing Figure 13 of by the following:
Channel
Backbone cable
FD or BD BD or CD
EQP C C C C C C EQP
Equipment Patch cord/ Patch cord/ Equipment
cord Jumper cable Jumper cable cable


EQP = equipment; C = connection (mated pair)
Figure 13 – Backbone cabling model
Replace, in ISO/IEC 11801:2002, the introductory sentence of the second paragraph with
bullet points by the following:
The following general restrictions apply for Classes D, E, E , F and F :
A A
Replace, in Amendment 1:2008, Table 33 by the following:
(Note that
...