UL UL1977 ⑧ Underwriters Laboratories Inc . Standard for Safety Component Connectors for Use in Data ,Signal ,Control and Power Applications SEPTEMBER 1 ,2009-UL 1977 Underwriters Laboratories Inc .( UL) 333 Pfingsten Road Northbrook .IL 60062-2096 UL Standard for Safety for Component Connectors for Use in Data ,Signal ,Control and Power Applications ,UL 1977 Second Edition ,Dated December 7 ,2007 SUMMARY OF TOPICS These revisions to UL 1977 include the following changes in requirements : Exception for End Product Flame Test Text that has been changed in any manner or impacted by UL's electronic publishing system is marked with a vertical line in the margin .Changes in requirements are marked with a vertical line in the margin and are followed by an effective date note indicating the date of publication or the date on which the changed requirement bees effective . The revised requirements are substantially in accordance with Proposal ()this subject dated April 6 2009. All rights reserved .No part of this publication may be reproduced ,stored in a retrieval system ,or transmitted any form by any means ,electronic ,mechanical photocopying ,recording ,or otherwise ...
UL 1977-2009 Component Connectors for Use in Data Signal Control and Power Applications.pdf
