ISO IEC 11801-1-2017 cor1-2018

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Carl 2024-09-12 12 373.57KB 7 页 8星币
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ISO/IEC 11801-1:2017/COR1:2018 – 1 –
© ISO/IEC 2018
ISO/IEC 11801-1
Edition 1.0 2017-11
INFORMATION TECHNOLOGY
GENERIC CABLING FOR CUSTOMER PREMISES
Part 1: General requirements
CORRIGENDUM 1
Foreword
Replace, in list item d), “Category BCT-B, 8.1, and 8.2;” with “Categories BCT-B, 8.1 and
8.2;”.
Replace list item f) with the following new list item:
f) addition of cabled optical fibre Categories OS1a and OM5;
Replace, in list item g), “silica optical fibre cabling;” with “optical fibre classes;”
Replace list item h) with the following new list item:
h) cabled optical fibre Categories OM1, OM2 and OS1 have been moved to an informative
annex.
Introduction
Replace the first paragraph with the following new paragraph:
This document contains general requirements in support of the other premises-specific
referenced cabling design documents developed by ISO/IEC JTC 1/SC 25 including
ISO/IEC 11801-2, ISO/IEC 11801-3, ISO/IEC 11801-4, ISO/IEC 11801-5, ISO/IEC 11801-6,
related Technical Specifications and Technical Reports (including the ISO/IEC TR 11801-99xx
series, ISO/IEC TR 24704, ISO/IEC TR 24750 and ISO/IEC TS 29125).
ISO/IEC 11801-1:2017-11/COR1:2018-04(en)
– 2 – ISO/IEC 11801-1:2017/COR1:2018
© ISO/IEC 2018
Figure 1 Relationships between the generic cabling documents produced by ISO/IEC
JTC 1/SC 25
Replace the figure graphic with the following new figure graphic:
3.1 Terms and definitions
In 3.1.26, delete “end-to-end” from the definition.
Delete the entire entry 3.1.32.
3.2 Abbreviations
Insert the following abbreviation:
connection
Replace:
FEXT far-end crosstalk attenuation (loss)
with:
FEXT far-end crosstalk (loss)
Replace:
NEXT near-end crosstalk attenuation (loss)
C
ISO/IEC 11801-1:2017/COR1:2018 – 3 –
© ISO/IEC 2018
with:
NEXT near-end crosstalk (loss)
3.3.1 Variables
Delete the following line:
connection
3.3.2 Indices
Delete the following line:
TO index to denominate a characteristic, measured from the TO
5.1 Functional elements
After the sentence “Groups of these functional elements are connected together to form
cabling subsystems.”, insert the following new note:
NOTE The numbering of the cabling subsystems does not imply a hierarchy.
Figure 5 – Equipment and test interfaces
Replace the figure graphic with the following new figure graphic:
Table 2 – Details of environmental classification
In row 20, insert “g/m
3
” after each numerical value in columns 2, 3 and 4, as follows:
C

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作者:Carl 分类:国际标准 价格:8星币 属性:7 页 大小:373.57KB 格式:PDF 时间:2024-09-12

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