![Huawei eA680-950 Скачать руководство пользователя страница 26](http://html.mh-extra.com/html/huawei/ea680-950/ea680-950_user-manual_168199026.webp)
eA680-950 LTE DAU
User Guide
3 Installation
Issue 01 (2017-03-03)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
21
Precautions
Power on a DAU within 24 hours after unpacking it. If you power off a DAU for
maintenance, restore power to the DAU within 24 hours. Keep the DAU dry in humid
environment.
To avoid direct lightning, DAU must be installed in the protection angle of 45 degrees
below a separate lightning rod, or protection angle of 45 degrees below a surrounding
high-rise building.
Ensure that there are no obstacles facing the DAU, and enable the DAU to face the base
station.
Installation Tools
Table 3-1 lists the tools used for installing the eA680-950.
Table 3-1
Installation tools
Hammer drill
ESD gloves
Vacuum cleaner
Heat gun
Phillips screwdriver
(M3–M6)
Flat-head screwdriver
(M3–M6)
Claw hammer
Utility knife
Wire stripper
Power cable crimping tool
Cable cutter
Adjustable wrench (open end
≥32 mm)
Vise
Hex key (M5,M6)
Phillips torque screwdriver