Amendment 1 - Information technology - Telecommunications cabling requirements for remote powering of terminal equipment

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Status
Published
Publication Date
19-May-2020
Current Stage
PPUB - Publication issued
Start Date
09-Jun-2020
Completion Date
20-May-2020
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ISO/IEC TS 29125:2017/AMD1:2020 - Amendment 1 - Information technology - Telecommunications cabling requirements for remote powering of terminal equipment
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ISO/IEC TS 29125
Edition 1.0 2020-05
TECHNICAL
SPECIFICATION

AMENDMENT 1
Information technology – Telecommunications cabling requirements for remote
powering of terminal equipment


ISO/IEC TS 29125:2017-04/AMD1:2020-05(en)

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ISO/IEC TS 29125


Edition 1.0 2020-05




TECHNICAL



SPECIFICATION














AMENDMENT 1





Information technology – Telecommunications cabling requirements for remote

powering of terminal equipment


























INTERNATIONAL

ELECTROTECHNICAL

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ICS 35.200 ISBN 978-2-8322-8310-3




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– 2 – ISO/IEC TS 29125:2017/AMD1:2020
© ISO/IEC 2020
FOREWORD
This amendment has been prepared by subcommittee 25: Interconnection of information
technology equipment, of ISO/IEC joint technical committee 1: Information technology.
The text of this amendment is based on the following documents:
DTS Report on voting
JTC1-SC25/2919/DTS JTC1-SC25/2945/RVDTS

Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.

_____________

INTRODUCTION to the amendment
This amendment incorporates changes necessary to include remote powering using single
pair cabling.

Introduction
Add the following at end of the last paragraph:
This document addresses the use of generic balanced single pair cabling for customer
premises, to be specified in future amendments of the ISO/IEC 11801 series, for remote
powering of terminal equipment. This document uses measurements and empirical models to
estimate the thermal performance of single pair cable bundles of various conductor diameters.
1 Scope
Replace list item a) with the following:
a) addresses the support of safety extra low voltage (SELV) and limited power source (LPS)
applications that provide remote power over:
• 4-pair balanced cabling in accordance with the reference implementations of
ISO/IEC 11801 series standards using currents per conductor of up to 500 mA;
• 1-pair balanced cabling using currents per conductor of up to 1 000 mA;
and targets the support of applications that provide remote power over balanced cabling to
terminal equipment,
5 Cabling selection and perfor
...

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