Huawei DRH3919A User Manual
DRH3917A&DRH3919A&DRH3919B&
DRH3985A
Hardware Maintenance Guide
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Date 2013-08-20
HUAWEI TECHNOLOGIES CO., LTD.
Copyright © Huawei Technologies Co., Ltd. 2013. 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.
Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective holders.
Notice
The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied.
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 all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.
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
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About This Document
About This Document
Purpose
This document describes routine maintenance procedures for a DRH (referred to as DRH in this document), such as equipment preventive maintenance and power-on and power-off operations. It also explains how to replace the DRH and optical modules.
Product Version
The following table lists the product version related to this document.
Product Name |
Product Version |
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DBS3900 IBS |
V100R001C02 |
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Scope of application
The following table lists the product version related to this document.
DRH Name |
DRH Version |
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DRH3917A |
V100R001C02 |
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DRH3919A |
V100R001C02 |
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DRH3919B |
V100R001C02 |
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DRH3985A |
V100R001C02 |
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Intended Audience
This document is intended for:
System engineers
Site maintenance engineers
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About This Document
Organization
1 Changes in the DRH Hardware Maintenance Guide
This chapter describes the changes in the DRH Hardware Maintenance Guide.
2 Preventative Maintenance Items for a DRH
Preventative maintenance for a DRH improves the reliability of the DRH. You are advised to perform scheduled maintenance yearly.
3 Powering On and Off a DRH
After a DRH is powered on, check the status of DRH indicators and voltage. Before the DRH is powered off, follow the normal power-off or emergent power-off procedure as required.
4 Replacing a DRH
A distributed base station consists of DRHs and a DCU. Replacing a DRH interrupts all the services carried by the DRH, and alarms are generated.
5 Replacing an Optical Module
An optical module implements optical-electrical conversion, enabling optical transmission between a DRH and other devices. You must disconnect fiber optic cables from an optical module before replacing the optical module. Disconnecting the fiber optic cables interrupts the transmission of CPRI signals.
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Contents
Contents
About This Document.................................................................................................................... |
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1 Changes in the DRH Hardware Maintenance Guide ............................................................ |
1 |
2 Preventative Maintenance Items for a DRH............................................................................ |
2 |
3 Powering On and Off a DRH ..................................................................................................... |
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3.1 Powering On an DRH ................................................................................................................................................... |
4 |
3.2 Powering Off a DRH .................................................................................................................................................... |
5 |
4 Replacing a DRH........................................................................................................................... |
6 |
5 Replacing an Optical Module..................................................................................................... |
9 |
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