ISO IEC 11801-3-2017 amd1-2021 PDF

Full title and description

ISO/IEC 11801-3:2017/Amd 1:2021 — Information technology — Generic cabling for customer premises — Part 3: Industrial premises — Amendment 1. Amendment 1 (2021) updates the 2017 Part 3 industrial-premises cabling standard to add requirements and guidance for balanced single-pair cabling channels, additional end-to-end link configurations and related installation/topology guidance for industrial environments.

Abstract

This amendment supplements ISO/IEC 11801-3:2017 by defining balanced 1‑pair (single‑pair) cabling channel and link requirements for industrial premises, introducing terms and topologies (for example edge distributor and industrial intermediate distributor), and adding normative annexes that specify single‑pair channel and end‑to‑end link performance for industrial use cases. It also aligns cabling references and measurement/testing guidance with relevant IEC and ISO/IEC measurement standards to support deployment of Single Pair Ethernet (SPE) and power‑over‑data-line solutions in industrial automation and IIoT applications.

General information

• Status: Published.
• Publication date: April 2021 (edition published April 2021; publication effective mid‑April 2021).
• Publisher: International Organization for Standardization (ISO) / IEC (joint ISO/IEC standard).
• ICS / categories: 35.200 — Interface and interconnection equipment.
• Edition / version: Amendment 1 to ISO/IEC 11801‑3:2017 — Edition 1 (Amd 1:2021).
• Number of pages: 29 pages.

Scope

Amendment 1 extends the scope of ISO/IEC 11801‑3:2017 for industrial premises by adding requirements and recommendations for balanced single‑pair cabling channels and end‑to‑end links intended for industrial networks. It covers channel and link configurations, topology concepts (including edge distributors and industrial intermediate distributors), component/connector references, measurement and testing references, and installation considerations specific to industrial environments (length models, connection counts, temperature derating, and combined 4‑pair/1‑pair architectures). The amendment is normative to Part 3 and is intended to be used alongside the base Part 3 document.

Key topics and requirements

• Introduction of balanced 1‑pair (single‑pair) cabling channel definitions and performance classes for industrial applications (including long‑reach and short‑reach SPE channel models).
• Normative annexes specifying single‑pair channel and end‑to‑end link requirements (examples include long 1 000 m 10 Mbit/s models and shorter 1 Gbit/s models where applicable).
• New topology and distribution elements (edge distributor, industrial intermediate distributor) to manage transitions between four‑pair and single‑pair infrastructures.
• References to relevant IEC component and connector specifications (for example IEC connectors and single‑pair cable standards) and updated measurement/testing references for E2E and MPTL verification.
• Installation guidance including maximum connection counts, equations for intermediate cable lengths, and temperature/cable‑type derating factors for industrial conditions.

Typical use and users

Typical users include industrial network designers, automation engineers, plant and process engineers, cabling system planners, installers and contractors, and manufacturers of cables, connectors and industrial networking equipment. The amendment supports use cases such as long‑reach process automation links, simplified data‑and‑power delivery to sensors and actuators via SPE/PoDL, and hybrid deployments that transition or combine 4‑pair and 1‑pair cabling in factory and plant environments.

Related standards

Closely related documents and standards include ISO/IEC 11801 (other parts of the generic cabling series), ISO/IEC 14763‑4 (measurement of installed cabling and testing methods), IEC 63171‑6 (industrial single‑pair connector specifications), IEC 61156 series for cable construction, and application/installation standards that address SPE and PoDL. The amendment explicitly amends and is used alongside ISO/IEC 11801‑3:2017.

Keywords

single‑pair Ethernet; SPE; balanced 1‑pair cabling; industrial premises; generic cabling; edge distributor; end‑to‑end link; PoDL; installation guidance; IEC connectors; measurement and testing.

FAQ

Q: What is this standard?

A: It is Amendment 1 (2021) to ISO/IEC 11801‑3:2017, the part of the ISO/IEC 11801 series that covers generic cabling for industrial premises; the amendment adds requirements and guidance for balanced single‑pair cabling and related topics.

Q: What does it cover?

A: It covers definitions, channel and end‑to‑end link performance requirements, topology elements (such as edge distributors), installation and testing guidance, and normative annexes that specify single‑pair cabling channel models for industrial use.

Q: Who typically uses it?

A: Industrial network designers, automation and plant engineers, cabling specifiers and installers, and cable/connector manufacturers who need to support SPE and industrial cabling topologies.

Q: Is it current or superseded?

A: The entry is a published amendment from April 2021 that amends ISO/IEC 11801‑3:2017. It is a normative amendment to the 2017 Part 3 document and remains the authoritative amendment unless a later amendment or revision is published. Check the issuing bodies for any subsequent revisions.

Q: Is it part of a series?

A: Yes — it is part of the ISO/IEC 11801 series (structured cabling for customer premises), specifically Part 3 (industrial premises); it is intended to be used together with the other parts of the 11801 series and with related IEC/ISO measurement and component standards.

Q: What are the key keywords?

A: Single‑pair Ethernet (SPE), balanced 1‑pair cabling, industrial cabling, generic cabling, edge distributor, PoDL, end‑to‑end link, MPTL, IEC connectors.