RRU3269
Installation Guide
Issue Draft B (2018-05-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Figure 9-31 Correct placement of waterproof blocks
Step 3 Close the cover plate of the RRU cabling cavity. Use an M5 torque screwdriver to partially
tighten the screws on the cover plate in the sequence shown in Figure 9-32. Then tighten the
screws to 2 N·m (17.7 lbf·in.) in the same sequence.
The RRU cabling cavity must be securely tightened to prevent water.
Figure 9-32 Closing the cover plate of an RRU cabling cavity
Step 4 Take off the ESD gloves, and pack up all the tools.
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