Publisher: Technical Publications Department, Otis Elevator Company
Registered Trademarks, Registered Service marks, and Unregistered Marks are used within this publication—
where applicable—to properly honor the claims of all companies.
This publication is intended for those individuals or organizations in ownership of Gen2® elevator system and
equipment manufactured and sold by Otis Elevator Company. It is expressly designed to be informative and to
offer a limited understanding of the operation of these systems. It is not intended to be a guide for servicing or
repairing or installing elevator equipment. Professional providers of those services should be contacted to
perform any work in a safe and professional manner.
Any unauthorized reproduction, public display, or distribution of copies by any person of any portion of this
publication may be a violation of Copyright Law of the United States of America and other countries and could
result in the awarding of Statutory Damages of up to $250,000 (US dollars) (17USC504) for infringement, and
may result in further civil and criminal penalties.
Permission to use any portion of this publication should be addressed to:
Otis Elevator Company
Manager, Technical Publications
Otis Service Center
212 West Newberry Road
Bloomfield, CT 06002 USA
Copyright ©2004, 2007, 2009, 2012 Otis Elevator Company. All rights reserved.
Cataloging in Publications Data
Part. No. MP-301G