User's Guide
2
Huawei Technologies Co., Ltd.
Address: Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website: http://www.huawei.com
Email: support@huawei.com
Copyright © Huawei Technologies Co., Ltd. 2008. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior
written consent of Huawei Technologies Co., Ltd.
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and other Huawei trademarks are the property of Huawei Technologies Co., Ltd. All other
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Notice
The information in this document is subject to change without notice. Every effort has been made in
the preparation of this document to ensure accuracy of the contents, but the statements, information,
and recommendations in this document do not constitute a warranty of any kind, express or implied.
Contents
1 Replacing the CRFU ...................................................................................................................3
Step 1 Record information of the carriers. .................................................................................4
Step 2 Block the carriers.........................................................................................................4
Step 3 Power off the AC surge protection box...................................................................5
Step 4 Remove the faulty CRFU............................................................................................5
Step 5 Install the new CRFU..................................................................................................6
Step 6 Power on the AC surge protection box....................................................................6
Step 7 Load the CPU software and FPGA software of the RRU3606..............................6