ISO/IEC 14165-151:2017

Information technology - Fibre channel - Part 151: Fibre Channel BaseT (FC-BaseT)

ISO/IEC 14165-151:2017(E) This part of ISO/IEC 14165 describes extensions to the Fibre Channel signaling and physical layer requirements defined in ISO/IEC 14165-142 to transport Fibre Channel over the commonly available 4-pair balanced copper cablings specified in ISO/IEC 11801:2002 and TIA/EIA-568-B.2-2001. This standard is one of the Fibre Channel family of standards.

General Information

• Status: Published
• Publication Date: 28-Nov-2017
• ICS: 35.200 - Interface and interconnection equipment
• Technical Committee: ISO/IEC JTC 1/SC 25 - Interconnection of information technology equipment
• Drafting Committee: WG 4 - ISO/IEC JTC 1/SC 25/WG 4
• Current Stage: PPUB - Publication issued
• Start Date: 29-Nov-2017
• Completion Date: 27-Dec-2017

Overview

ISO/IEC 14165-151:2017 - Information technology - Fibre Channel - Part 151: Fibre Channel BaseT (FC‑BaseT) defines the PHY extensions required to carry Fibre Channel over common 4‑pair balanced copper cabling. Published jointly by ISO/IEC (IEC) in 2017, this standard is part of the Fibre Channel family and extends the signaling and physical‑layer requirements in ISO/IEC 14165‑142 to operate on cabling specified in ISO/IEC 11801 and TIA/EIA‑568‑B.2.

Key topics and technical requirements

• Scope and relationship: Specifies how Fibre Channel maps to the BaseT physical medium and how FC‑BaseT fits into the OSI/Fibre Channel layering and IEEE 802.3 models.
• Physical Coding Sublayer (PCS): Transmit/receive functions, synchronization, 36/33 transcoding, error‑detecting code, scrambling, Schläfli lattice and trellis coding, and state diagrams.
• Physical Medium Attachment (PMA) & Medium Dependent Interface (MDI): PMA functions (reset, transmit, receive, clock recovery, link monitor), PMA electrical specifications, MDI mechanical and electrical requirements, and MDI/MDI‑X auto‑configuration.
• Link and cable requirements: FC‑BaseT link topology, cable plant requirements for 4‑pair balanced copper per ISO/IEC 11801 and TIA/EIA‑568‑B.2, EMC/isolation considerations, and fault tolerance.
• PHY startup and auto‑negotiation: Host speed determination, master/slave roles, tentative operating speed, cable length estimation, configuration resolution, and speed downshift behavior.
• Elasticity FIFO and timing: Ordered‑set processing, clock skew compensation, and elasticity FIFO management to maintain Fibre Channel timing over copper.
• Port management and registers: Management/control/status registers, SNR margin reporting, test registers and auto‑negotiation page registers.
• Informative annexes: Additional 36/33 mappings, coding details, and recommended power schedules (e.g., for 4GFC‑BaseT).

Applications and who uses it

• Data center and SAN designers migrating Fibre Channel over existing copper cabling to reduce cost and simplify deployment.
• Storage vendors and NIC/adapter manufacturers implementing FC‑BaseT PHYs and ensuring interoperability.
• Network architects and integrators planning copper‑based Fibre Channel links (topology, cable plant and EMC).
• Test labs and compliance engineers verifying PMA electrical specs, MDI behavior, auto‑negotiation and port management registers.

Related standards

• ISO/IEC 14165‑142 (Fibre Channel signaling/physical layer baseline)
• ISO/IEC 11801 and TIA/EIA‑568‑B.2 (4‑pair balanced copper cabling standards)
• Other parts of the Fibre Channel family (for higher‑layer protocols and link management)

Keywords: ISO/IEC 14165-151, FC‑BaseT, Fibre Channel, 4‑pair balanced copper, PCS, PMA, MDI, auto‑negotiation, SAN, data center cabling.

Standards Content (Sample)

ISO/IEC 14165-151
Edition 1.0 2017-11
INTERNATIONAL
STANDARD
colour
inside
Information technology –Fibre channel –
Part 151: Fibre Channel BaseT (FC-BaseT)

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about
ISO/IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address
below or your local IEC member National Committee for further information.

IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the

latest edition, a corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 20 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 65 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

CISPR.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: [e-mail].
ISO/IEC 14165-151
Edition 1.0 2017-11
INTERNATIONAL
STANDARD
colour
inside
Information technology –Fibre channel –

Part 151: Fibre Channel BaseT (FC-BaseT)

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 35.200 ISBN 978-2-8322-5100-3

Information Technology — Fibre Channel —
Part 151: BaseT
Technologies de l’information — Fibre Channel — Partie 151 (FC-BaseT)
ISO/IEC 14165-151 Fibre Channel - BaseT (FC-BaseT)

2 14165-151 © ISO/IEC 2017
Contents Page
FOREWORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2 Normative references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 Terms, definitions, abbreviations, symbols, and conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 Terms and definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Editorial conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.3 Abbreviations, acronyms, and symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.4 Keywords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.5 State Diagram notation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.5.1 State Diagram conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.5.2 State Diagram variables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.5.3 State Diagram timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.5.4 State transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.5.5 Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4 Structure and concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.2 Relationship with other standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.3 FC-BaseT PHY logical model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.4 FC-BaseT usage of XGMII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.5 Operation of FC-BaseT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.5.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.5.2 PCS overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.5.3 PMA overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.6 FC-BaseT service primitives and interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.6.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.6.2 PMA service interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.6.3 Management function interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.7 FC-BaseT Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5 Physical Coding Sublayer (PCS). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.2 PCS reset function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.3 PCS transmit function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.3.2 36/33 transcoding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.3.3 Error detecting code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.3.4 PCS scrambling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.3.5 Schläfli Lattice coding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.3.6 Trellis coding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.3.7 Generation of PMA training sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
5.4 PCS receive function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5.4.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5.4.2 Decoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5.4.3 PCS descrambling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
5.4.4 33/36 transcoding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
5.4.5 PCS synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5.5 State Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

14165-151 © ISO/IEC 2017 3
6 PMA Sublayer and Medium Dependent Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.1 PMA Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.2 PMA Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.2.1 PMA Reset function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.2.2 PMA Transmit function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.2.3 PMA Receive Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.2.4 PHY Control Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
6.2.5 Link Monitor Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
6.2.6 Clock Recovery Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
6.2.7 State Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
6.3 PMA Electrical Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
6.3.1 Isolation and EMC Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
6.3.2 Test Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
6.3.3 Transmitter Electrical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
6.3.4 Receiver Electrical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
6.4 MDI Specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
6.4.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
6.4.2 MDI Mechanical Specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
6.4.3 Automatic MDI/MDI-X Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.4.4 MDI Electrical Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.4.5 MDI Fault tolerance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.5 Link Segment Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.5.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.5.2 FC-BaseT Link Topology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
6.5.3 FC-BaseT Cable Plant Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
7 Elasticity FIFO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
7.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
7.2 Ordered sets processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
7.3 Clock skew compensation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
8 PHY startup procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
8.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
8.2 Host speeds determination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
8.3 Host synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
8.4 FC-BaseT auto-negotiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
8.4.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
8.4.2 FC-BaseT support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
8.4.3 Master-Slave relationship . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
8.4.4 Cable length estimation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
8.4.5 Tentative Operating Speed Determination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
8.4.6 Configuration resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
8.5 Speed downshift function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
8.6 State diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
9 Port management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
9.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
9.2 FC-BaseT management registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
9.3 Control Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
9.4 Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
9.5 Speed Downshift Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
9.6 Test Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
9.7 SNR Margin Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
9.8 Auto-Negotiation Pages Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

4 14165-151 © ISO/IEC 2017
Annex A (informative) Additional 36/33 Mappings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
A.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
A.2 Notation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
A.3 Additional mappings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Annex B (informative) Schläfli Lattice coding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Annex C (informative) Recommended 4GFC-BaseT power schedule . . . . . . . . . . . . . . . . . . . . . . . 102
Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

14165-151 © ISO/IEC 2017 5
Figure Page
Figure 1 State diagram notation example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 2 FC-BaseT topology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 3 FC-BaseT relationship to the OSI Reference Model,
the Fibre Channel Levels, and the IEEE 802.3 LAN Model. . . . . . . . . . . . . . . . . . . . . 20
Figure 4 An FC-BaseT PHY logical model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 5 PCS and PMA functional block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 6 PCS and PMA service interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 7 FC-BaseT nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 8 PCS reference diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 9 PCS transmit bit ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 10 Side-stream scrambler for the Master PHY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 11 Side-stream scrambler for the Slave PHY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 12 4D PAM-8 Schläfli Lattice encoder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 13 4D PAM-8 Trellis encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 14 Generation of PMA training PAM-2 sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Figure 15 PCS receive bit ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 16 4D PAM-8 Schläfli Lattice decoder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 17 Side-stream descrambler for the Master PHY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 18 Side-stream descrambler for the Slave PHY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 19 PCS synchronization state diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Figure 20 PMA Reference Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Figure 21 Example of Link Establishment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Figure 22 PHY Control State Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Figure 23 Link Monitor State Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Figure 24 Transmitter Test Fixture A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Figure 25 Transmitter Test Fixture B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Figure 26 Test Mode 1 Output (not to scale) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Figure 27 4GFC-BaseT Transmitter PSD at 5dBm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Figure 28 2GFC-BaseT Transmitter PSD at 5dBm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Figure 29 1GFC-BaseT Transmitter PSD at 5dBm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Figure 30 MDI Jack Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Figure 31 Balanced Cabling Plug Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Figure 32 FC-BaseT Link Topology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Figure 33 FC-BaseT elasticity FIFO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Figure 34 Example of E-FIFO implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Figure 35 FC-BaseT clock skew compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Figure 36 Base page encoding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Figure 37 Unformatted page encoding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Figure 38 Clock detect state diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Figure 39 Clock loopback state diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Figure B.1 4D symbol error rate in function of SNR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

6 14165-151 © ISO/IEC 2017
Table Page
Table 1 ISO and American Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 2 State Diagram Operators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Table 3 FC-BaseT design goals for data rates and cable reaches
for the cabling channels specified by ISO/IEC 11801:2002/AMD2:2010 . . . . . . . . . . . . . . . . . . . . . 20
Table 4 XGMII frequencies for FC-BaseT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 5 XGMII characters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 6 FC-BaseT symbol and data rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 7 Fibre Channel words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 8 XGMII representation of Fibre Channel words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 9 36/33 transcoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 10 36/33 transcoding examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 11 Bit to symbols mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Table 12 PMA training sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Table 13 PCS synchronization state variables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Table 14 Idle2 and Idle3 Ordered Sets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Table 15 PHY Control and Link Monitor State Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Table 16 PHY Control and Link Monitor Timers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Table 17 Management Register Settings for Test Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Table 18 Disturbing Signal Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Table 19 Droop Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Table 20 Transmitter Power Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Table 21 Transmitter Frequency Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Table 22 Receiver Frequency Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Table 23 Alien Noise Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Table 24 Assignment of PMA Signals to MDI and MDI-X Contacts . . . . . . . . . . . . . . . . . . . . . . . . . 67
Table 25 FC-BaseT MDI Electrical Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Table 26 FC-BaseT Cable Plant Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Table 27 Extended Fill Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Table 28 Technology Ability Field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Table 29 Unformatted code field of the first unformatted page . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Table 30 Master-Slave seed assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Table 31 Unformatted code field of the second unformatted page. . . . . . . . . . . . . . . . . . . . . . . . . . 78
Table 32 Unformatted code field of the third unformatted page . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Table 33 Cable length estimation state variables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Table 34 Cable length estimation timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Table 35 FC-BaseT registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Table 36 FC-BaseT control register bits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Table 37 FC-BaseT status register bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Table 38 FC-BaseT speed downshift register bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Table 39 FC-BaseT test register bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Table 40 FC-BaseT SNR margin registers bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Table 41 FC-BaseT auto-negotiation pages registers bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Table A.1 Additional 36/33 mappings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Table A.2 6-bit encoding of XGMII control characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Table C.1 Recommended transmitter power schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

14165-151 © ISO/IEC 2017 7
INFORMATION TECHNOLOGY –
FIBRE CHANNEL –
Part 151: Fibre Channel BaseT (FC-BaseT)
FOREWORD
1) ISO (International Organization for Standardization) and IEC (International Electrotechnical Commission)
form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC
participate in the development of International Standards. Their preparation is entrusted to technical
committees; any ISO and IEC member body interested in the subject dealt with may participate in this
preparatory work. International governmental and non-governmental organizations liaising with ISO and IEC
also participate in this preparation.
2) In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC
1. Draft International Standards adopted by the joint technical committee are circulated to national bodies for
voting. Publication as an International Standard requires approval by at least 75 % of the national bodies
casting a vote.
3) The formal decisions or agreements of IEC and ISO on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has
representation from all interested IEC and ISO member bodies.
4) IEC, ISO and ISO/IEC publications have the form of recommendations for international use and are accepted
by IEC and ISO member bodies in that sense. While all reasonable efforts are made to ensure that the
technical content of IEC, ISO and ISO/IEC publications is accurate, IEC or ISO cannot be held responsible for
the way in which they are used or for any misinterpretation by any end user.
5) In order to promote international uniformity, IEC and ISO member bodies undertake to apply IEC, ISO and
ISO/IEC publications transparently to the maximum extent possible in their national and regional publications.
Any divergence between any ISO/IECpublication and the corresponding national or regional publication
should be clearly indicated in the latter.
6) ISO and IEC provide no marking procedure to indicate their approval and cannot be rendered responsible for
any equipment declared to be in conformity with an ISO/IEC publication.
7) All users should ensure that they have the latest edition of this publication.
8) No liability shall attach to IEC or ISO or its directors, employees, servants or agents including individual
experts and members of their technical committees and IEC or ISO member bodies for any personal injury,
property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including
legal fees) and expenses arising out of the publication of, use of, or reliance upon, this ISO/IEC publication or
any other IEC, ISO or ISO/IEC publications.
9) Attention is drawn to the normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
10) Attention is drawn to the possibility that some of the elements of this International Standard may be the
subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
International Standard ISO/IEC 14165-151 was prepared by subcommittee 25: Interconnection of
information technology equipment, of ISO/IEC joint technical committee 1: Information technology.
The list of all currently available parts of the ISO/IEC 14165 series, under the general title Information
technology – Fibre Channel, can be found on the IEC web site.
This International Standard has been approved by vote of the member bodies and the voting results may

8 14165-151 © ISO/IEC 2017
be obtained from the address given on the second title page.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
IMPORTANT - The 'colour inside' logo on the cover page of this publication indicates that
it contains colours which are considered to be useful for the correct understanding of its
contents. Users should therefore print this document using a colour printer.

14165-151 © ISO/IEC 2017 9
INTRODUCTION
This part of ISO/IEC 14165 describes extensions to the Fibre Channel signaling and physical layer
requirements defined in ANSI INCITS 404-2005, Fibre Channel - Physical Interfaces 2, to transport Fibre
Channel over the commonly available 4-pair balanced copper cablings specified in ISO/IEC 11801:2002
and TIA/EIA-568-B.2-2001. This document is one of the Fibre Channel family of standards.

10 14165-151 © ISO/IEC 2017
INFORMATION TECHNOLOGY —
FIBRE CHANNEL —
Part 151: Fibre Channel BaseT (FC-BaseT)
1 Scope
This part of ISO/IEC 14165 describes extensions to the Fibre Channel signaling and physical layer
requirements defined in ISO/IEC 14165-142, Fibre Channel - Physical Interfaces 2, to transport Fibre
Channel over the commonly available 4-pair balanced copper cablings specified in ISO/IEC 11801:2002
and TIA/EIA-568-B.2-2001. This standard is one of the Fibre Channel family of standards.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements 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.
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 100 MHz
IEC 60603-7-3, Connectors for electronic equipment – Part 7-3: Detail specification for 8-way, shielded,
free and fixed connectors, for data transmission with frequencies up to 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 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 250 MHz
ISO/IEC 14165-122, Information technology - Fibre Channel - Part 122: Arbitrated Loop - 2 (FC-AL-2) [ANSI
INCITS 332-1999 including ANSI INCITS 332-1999/AM1-2003 and ANSI INCITS 332-1999/AM2-2006]
ISO/IEC 11801:2002, Information technology - Generic cabling for customer premises
ISO/IEC 11801:2002/AMD1:2008
ISO/IEC 11801:2002/AMD2:2010
ISO/IEC TR 24750, Information technology - Assessment and mitigation of installed balanced cabling
channels in order to support 10GBASE-T
ANSI INCITS 404-2006, Information technology - Fibre Channel - Part 142: Physical Interfaces - 2
(FC-PI-2)
ANSI INCITS 424-2007, Information technology - Fibre Channel - Framing and Signaling - 2 (FC-FS-2)
IEEE Std 802.3-2005, Standard for information technology - Telecommunications and information
exchange between systems - Local and metropolitan area networks - Specific requirements - Part 3:
Carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer
specifications
IEEE Std 802.3an-2006, Physical Layer and Management Parameters for 10 Gb/s Operation, Type
10GBASE-T
14165-151 © ISO/IEC 2017 11
3 Terms, definitions, abbreviations, symbols, and conventions
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
- IEC Electropedia: available at http://www.electropedia.org/
- ISO Online browsing platform: available at http://www.iso.org/obp
3.1.1
10 Gigabit Media Independent Interface
XGMII
interface defined in IEEE 802.3-2005 for 10 Gbit/s operations but used in this standard for lower speeds
operations (see 4.4)
3.1.2
Auto-Negotiation
algorithm that allows two devices at either end of a link segment to negotiate common data service
functions
3.1.3
balanced cable
cable consisting of one or more metallic symmetrical cable elements (e.g., twisted pairs)
3.1.4
bit error rate
BER
ratio of the number of bits received in error to the total number of bits received
3.1.5
dimension
component of the PHY that generates locally and recovers from the link partner a logical sequence of
symbols
Note 1 to entry: A transmit or receive dimension is a logical reference for a wire pair, independent from the
specific wire pair where symbols are sent or received.
Note 2 to entry: Dimensions A, B, C, and D are respectively associated with sequences A , B , C , and D
n n n n
(see 4.3).
3.1.6
jitter
variations of signal transitions from their ideal positions in time. Jitter may be characterized by its spectral
properties and its distribution in time
3.1.7
link
transmission path between any two interfaces of generic cabling

12 14165-151 © ISO/IEC 2017
3.1.8
link segment
point-to-point full-duplex medium connection between two and only two Medium Dependent Interfaces
(MDIs)
3.1.9
Master PHY
PHY that uses an external clock for generating its clock signals to determine the timing of transmitter and
receiver operations
Note 1 to entry: It also uses the Master transmit scrambler generator polynomial for side-stream
scrambling.
3.1.10
Medium Dependent Interface
MDI
mechanical and electrical interface between the transmission medium and the Physical Layer device
3.1.11
Ordered Set
word composed of a special character in its first (left-most) position and data characters in its remaining
positions (see FC-FS-2)
3.1.12
Physical Coding Sublayer
PCS
portion of the Physical Layer that couples the XGMII and the Physical Medium Attachment (PMA)
Note 1 to entry: The PCS contains the functions to encode data bits for transmission via the PMA and to
decode the received conditioned signal from the PMA.
3.1.13
Physical Layer device
PHY
portion of the Physical Layer between the Medium Dependent Interface (MDI) and the XGMII, consisting of
the Physical Coding Sublayer (PCS) and the Physical Medium Attachment (PMA)
Note 1 to entry: The PHY contains the functions that transmit, receive, and manage the encoded signals
that are impressed on and recovered from the physical medium.
3.1.14
Physical Medium Attachment sublayer
PMA sublayer
portion of the Physical Layer that contains the functions for transmission, reception, clock recovery and
skew alignment
3.1.15
Scrambler
randomizing mechanism that is used to eliminate long strings of consecutive identical transmitted symbols
and avoid the presence of spectral lines in the signal spectrum without changing the signaling rate
3.1.16
Side-stream scrambler
scrambler in which the state of the scrambler is dependent only on the prior state of the scrambler and not
on the transmitted data
14165-151 © ISO/IEC 2017 13
3.1.17
Slave PHY
PHY that recovers its clock from the received signal and uses it to determine the timing of transmitter
operations
Note 1 to entry: It also uses the Slave transmit scrambler generator polynomial for side-stream scrambling.
3.1.18
Symbol
smallest unit of data transmission on the medium
3.1.19
Symbol period
time interval for transmission of one symbol
3.1.20
Symbol rate
total number of symbols per second transferred to or from the Medium Dependent Interface (MDI) on a
single wire pair
3.1.21
twisted-pair cable
bundle of multiple twisted pairs within a single protective sheath
3.1.22
word
32 contiguous bits

14 14165-151 © ISO/IEC 2017
3.2 Editorial conventions
In this standard, a number of conditions, mechanisms, sequences, parameters, events, states, or similar
terms are printed with the first letter of each word in uppercase and the rest lowercase (e.g., Exchange,
Class). Any lowercase uses of these words have the normal technical English meanings.
Lists sequenced by letters (e.g., a-red, b-blue, c-green) show no ordering relationship between the listed
items. Numbered lists (e.g., 1-red, 2-blue, 3-green) show an ordering relationship between the listed items.
The ISO convention of numbering is used (i.e., the thousands and higher multiples are separated by a space
and a comma is used as the decimal point.)  A comparison of the American and ISO conventions are shown
in table 1.
Table 1 – ISO and American Conventions
ISO American
0,6 0.6
1 000 1,000
1 323 462,9 1,323,462.9
In case of any conflict between figure, table, and text, the text, then tables, and finally figures take
precedence.
In all of the figures, tables, and text of this document, the most significant bit of a binary quantity is shown
on the left side.
When the value of a bit or field is not relevant, x or xx appears in place of a specific value.
Unless stated otherwise, numbers that are not immediately followed by lower-case b or h are decimal
values, numbers immediately followed by lower-case b (xxb) are binary values, and numbers or upper case
letters immediately followed by lower-case h (xxh) are hexadecimal values.
A numeric range is indicated by listing the two extremes separated by “.” (e.g., “1 . 6” indicates the range
from 1 to 6, including 1 and 6).
3.3 Abbreviations, acronyms, and symbols
Abbreviations, acronyms, and symbols applicable to this standard are listed. Definitions of several of these
items are included in 3.1.
⊕ The XOR operator
|| concatenation symbol (e.g., A || B represents the concatenation of A and B)
4D 4-dimensional
BER bit error rate
dB Decibel
E-FIFO Elasticity FIFO
EDC Error Detecting Code
EIA Electronic Industries Association
EMC Electromagnetic Compatibility
EMI Electromagnetic Interference
FEXT Far-end crosstalk
FLP Fast Link Pulse
I2C Inter-Integrated Circuit bus

14165-151 © ISO/IEC 2017 15
IEC International Electrotechnical Commission
IEEE Institute of Electrical and Electronics Engineers
ISO International Organization for Standardization
LAN Local Area Network
MDI Medium Dependent Interface
MDIO Management Data Input/Output Interface
MII Media Independent Interface
NEXT Near-end crosstalk
NLP Normal Link Pulse
OSI Open Systems Interconnection
PAM Pulse Amplitude Modulation
PAM-2 2-level Pulse Amplitude Modulation
PAM-8 8-level Pulse Amplitude Modulation
PCS Physical Coding Sublayer
PHY Physical Layer device
PMA Physical Medium Attachment
ppm Parts per million
PSD Power Spectral Density
RF Remote Fault
RX Receiver
SNR Signal to Noise Ratio
TIA Telecommunication Industries Association
TX Transmitter
XGMII 10 Gigabit Media Independent Interface
3.4 Keywords
3.4.1 expected: A keyword used to describe the behavior of the hardware or software in the design
models assumed by this standard. Other hardware and software des
...