PD IEC TS 61156-1-2:2023 Tracked Changes compares PD IEC TS 61156-1-2:2023 With PD IEC/TR 61156-1-2:2009+A1:2014 BSl Standards Publication Multicore and symmetrical pair/quad cables for digital communications Part 1-2: Electrical transmission characteristics and test methods of symmetrical pair/quad cables bsi. PD IEC TS 61156-1-2:2023 — Tracked Changes National foreword This Published DoeumentBritish Standard is the UK implementation of EC/ TR 61156-1-2:2009+A1:2014IEC TS 61156-1-2:2023. It supersedes PD IEC/TR 61156-1-2:2009PD IEC/TR 61156-1-2:2009+A1:2014 which is withdrawn. The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to IEC text carry the number of the IEC amendment. For example, text altered by IEC amendment 1 is indicated by : The UK participation in its preparation was entrusted to Technical Committee EPL/46, Cables, wires and waveguides, radio frequency connectors and accessories for communication and signalling A list of organizations represented on this committee can be obtained on request to its seeretarycommittee manager Contractual and legal considerations This publication has been prepared in good faith, however no representation,warranty,assuranceorundertaking(express or implied) is or will be made, and no responsibility or liability is or will be accepted by BsI in relation to the adequacy, accuracy, completeness or reasonableness of this publication. All and any extent permitted by the law. This publication is provided as is, and is to be used at the recipient's own risk The recipient is advised to consider seeking professional guidance withrespecttoitsuseofthispublication This publication doesis not purportintended to inelude all the necessary provisions ofconstitute a contract. Users are responsible for its correct application. The British Standards Institution 2014. Published by BS Standards Limited 2014 @ The British Standards Institution 20142023 Published by BSI Standards Limited 20142023 ISBN 978 0 580-83682 4978 0 539 24793 0 ICS 33.120.20; 21.220 Compliance with a British StandardPublished Document cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2009. Amendments/corrigenda issued since publication Date Textaffected 31 0ctober 2014 Implementation of IEC amendment1:2014 PD IEC TS 61156-1-2:2023 Tracked Changes Amendments/corrigenda issued since publication Date Text affected iv @ BSI 2023 - All rights reserved