RRU
Hardware Maintenance Guide
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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4.5 Replacing Blade RRUs in the ICR and Adding Blade
RRUs to the ICR
This section describes procedures for replacing non-blade RRUs in the indoor centralized rack
(ICR) with blade RRUs and adding blade RRUs to the ICR.
Context
This document applies to 12 L blade RRU. The 18 L blade RRU does not support the
indoor centralized installation.
The attachment plates for installing a blade RRU in an ICR must support RRU
installation in a subrack. Figure 4-24 shows the exteriors of attachment plates for
installing an RRU in a subrack or installing a blade RRU in an ICR.
Figure 4-24 Attachment plates for installing an RRU in a subrack or installing a blade RRU
in an ICR
This section describes the procedure for maintaining an RRU in an ICR with a height of
10 U. The maintenance procedure is the same for RRUs in other ICRs, which do not
include the INS12 because it cannot be used for installing RRUs.
Procedure
Step 1 Wear ESD gloves.
Take proper ESD protection measures, for example, wear ESD gloves, to prevent electrostatic
damage to the boards, modules, or other electronic components.
Step 2 Remove the non-blade RRU to be replaced.
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