Carla

TIA/EIA TELECOMMUNICATIONS SYSTEMS BULLETIN
Transmission Performance Specifications for Field Testing of Unshielded Twisted-Pair Cabling Systems

TSB67

OCTOBER 1995

TELECOMMUNICATIONS INDUSTRY ASSOCIATION

NOTICE
TIA/EIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers,facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for his particular need. Existence of such Standards and Publications shall not in any respect preclude any member or nonmember of TIA/EIA from manufacturing or selling products not conforming to such Standards and Publications, nor shall the existenceof such Standards and Publications preclude their voluntary use by those other than TIA/EIA members, whether the standard is used either domestically or internationally. Standards, Publications and Bulletins are adopted by TIA/EIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, TIA/EIA does not assume any liability to any patent owner, nor does itassume any obligation whatever to parties adopting the Standard, Publication or Bulletin. Technical Bulletins are distinguished from TIA/EIA Standards and Interim Standards, in that they contain a compilation of engineering data or information useful to the technical community, and represent approaches to good engineering practices that are suggested by the formulating committee. This Bulletin isnot intended to preclude or discourage other approaches that similarly represent good engineering practice, or that may be acceptable to, or have been accepted by, appropriate bodies. Parties who wish to bring other approaches to the attention of the formulating committee to be considered for inclusion in future revisions of this Bulletin are encouraged to do so. It is the intention of theformulating committee to revise and update this Bulletin from time to time as may be occasioned by changes in technology, industry practice, or government regulations, or for other appropriate reasons. (From Project No. 3287, formulated under the cognizance of the TIA TR-41.8 Subcommittee on Commercial and Residential Building a Building Cabling Systems.) Published by TELECOMMUNICATIONS INDUSTRYASSOCIATION 1995

Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 PRICE: Please refer to the current Catalog of EIA, JEDEC and TIA STANDARDS and ENGINEERING PUBLICATIONS or call Global Engineering Documents, USA and Canada (1-800-854-7179) International (303)397-7956) All rights reserved Printed in the U.S.A.

PLEASE! DON'T VIOLATE THE LAW!
This document is copyrightedby the TIA and may not be reproduced without permission. Organizations may obtain permission to reproduce a limited number of copies through entering into a license agreement. For information, contact: Global Engineering Documents 15 Inverness Way East Englewood, CO 80112-5704 or call U.S.A. and Canada 1-800-854-7179, International (303)397-7956

ANSI/TIA/EIA-569-A Commercial Building Standardsfor Telecommunications Pathways and Spaces Contents
Title Page Foreword

1_Introduction 1.1_General 1.2_Purpose 1.3_Expected usefulness 1.4_Relation to other organizations 1.5_Mandatory, advisory terms 1.6_Metric equivalents of U.S. customary units 1.7_Life of this Standard 2_Scope 2.1_General 2.2_Basic building elements 2.3_Normative references 3_Definitions, abbreviations and acronyms, units3.1_Definitions 3.2_Abbreviations and acronyms 3.3_Units 4 _Horizontal pathways and related spaces 4.1_General 4.2_Underfloor pathways

4.3_Access floor 4.4 Conduit44 4.5_Cable trays and wireways 4.6_Ceiling pathway 4.7_Perimeter pathways 4.8_Miscellaneous 5_Intrabuilding backbone pathways and related spaces 5.1_General 5.2_Design guidelines 6_Work area 6.1_General 6.2_Telecommunications...