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DRH
Hardware Maintenance Guide
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 Versions
The following table lists the product versions related to this document.
Product Name
DRH
Intended Audience
This document is intended for:
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 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 inteDRHpts all the
services carried by the DRH, and alarms are generated.
5 Replacing an Optical Module
Issue 1.0(2013-04-10)
System engineers
Site maintenance engineers
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
About This Document
Product Version
V100R001
1 About This Document
ii
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