T568.1-4-05 (R2010)

CSA Preface This is the first edition of CSA T568.1-4, Commercial building telecommunications cabling standard - Part 1: General requirements - Addendum 4 - Recognition of category 6 and 850 mm laser-optimized 50/125 mm multimode optical fiber cabling. This Standard is an adoption of the identically titled ANSI/TIA (American National Standards Institute/Telecommunications Industry Association) Standard 568-B.1-4-2003 and is the product of the Telecommunications Industry Association TR-42 Technical Committee, which included a number of Canadian members in order to ensure that Canadian perspectives and requirements were addressed. It is written in SI (metric) units with yard/pound (imperial) units in parentheses. 1 INTRODUCTION The purpose of this addendum is to recognize balanced twisted pair category 6 cabling and 850 nm laseroptimized 50/125 µm multimode optical fiber cable by revising sub-clauses 4.4, 4.5, 5.3 and 11.2.2 of TIA/EIA-568-B.1. These revisions are identified in the following text with additions shown in bold italics and deletions shown as strikeout.