UTP Cable Termination Standards CERN（UTP电缆终端标准欧洲核子研究中心）.pdf

568A v 568B 03 9722-2233 Home UTP Cable Termination Standards Up 568A Vs 568B Library Researched and written by Tim Hamilton for Able Cables Pty Ltd Summary In the past there have been two main termination specifications for UTP data cable infrastructure and yet another for phone cable infrastructure. In today’s world of structured cable systems where many different services can be run over one type of cable it is important to keep up with changing technology and standards, to remain cutting edge is to remain profitable. This report outlines the uses of the three different standards and when to use them. Contents Summary Contents 1.0 Introduction 2.0 What is 568? 3.0 The Standards Organizations .au/568avb.htm (1 of 8)2/12/2007 4:25:46 PM 568A v 568B 4.0 The ATT Standard 5.0 TIA/EIA Standard 6.0 USOC 7.0 Technical Specifications 7.1 Comparing 568A and 568B 7.2 Comparing 568B to USOC 8.0 Which Specification is Preferred? 9.0 Conclusion Appendices Appendix 1.0 The layout of the pairs Appendix 2.0 The Standards Organizations Stance 1.0 Introduction The Australian Standards (AS 3080) and the International Standards (ISO/IEC 11801:1995) for structured cabling systems refer to the TIA/EIA produced standard for terminating a category 5 (CAT 5) unshielded twisted pair (UTP)