6.2.3 Installing Multiple RRUs
The section describes the procedure for installing multiple RRUs on a pole and the precautions
that must be taken during the installation.
Context
A pole supports the installation of three, four, or six RRUs. The procedures for installing them
are the same. Following is the procedure of installing four RRUs on a pole.
Procedure
Step 1 Install one set of bracket assembly on a pole. For details, see 6.2.1 Installing a Single RRU.
Step 2 Interchange the attachment plate and stainless steel screws at the RRU rear and the cover plate
and plastic screws on the RRU side, as shown in Figure 6-16.
Figure 6-16 Interchanging the attachment plate at the RRU rear and the cover plate on the RRU
side
1. Remove the attachment plate from the RRU rear using an inner hexagon screwdriver.
2. Remove the cover plate from the RRU side, and use a Phillips screwdriver to remove the
plastic screws from the RRU.
3. Install the plastic screws onto the RRU rear, and tighten the screws to 0.25 N·m (2.21 lbf·in.)
using a torque screwdriver.
4. Install the cover plate onto the RRU rear.
5. Install the attachment plate onto the RRU side, and tighten the stainless steel screws on the
attachment plate to 5 N·m (44.25 lbf·in.) using a torque screwdriver.
Step 3 Install the first RRU on the main mounting bracket, as shown in Figure 6-17.
RRU3232
Installation Guide 6 Installing the RRU
Issue 05 (2011-10-20) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
38
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