iPrefaceAbout This ManualThis manual explains how to install, operate and maintain the PA550 RuggedMobile Computer.No part of this publication may be reproduced or used in any form, or by anyelectrical or mechanical means, without permission in writing from themanufacturer. This includes electronic or mechanical means, such asphotocopying, recording, or information storage and retrieval systems. Thematerial in this manual is subject to change without notice.© Copyright 2010 Unitech Electronics Co., Ltd. All rights reserved.Unitech global website address: http:\\www.unitech-adc.comBluetooth is a registered trademark of Bluetooth SIG.Microsoft, Windows and ActiveSync are eitherregistered trademarks or trademarks of MicrosoftCorporation. Other product names mentioned in thismanual may be trademarks or Registeredtrademarks of their respective companies and arehereby acknowledged.Unitech is a member of Oracle Embedded SoftwareLicensing Program.