Installing A Prru3902 On A Keel - Huawei DBS3900 Installation Manual
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DBS3900 LampSite
Installation Guide
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8.3.5 Installing a pRRU3902 on a Keel
This section describes how to install a pRRU3901 on a keel. If a suspended ceiling plate
cannot bear the pRRU3902, the pRRU3902 can be installed on the keel on the ceiling. The
standard keel with a width less than 45 mm, instead of the non-standard keel, is
recommended.
Context
Before installing the pRRU3902 on a keel, ensure that the keel is strong enough to bear the
pRRU3902.
l
l
The keel used on the ceiling is thin. During installation, fix the mounting kits onto the large
surface instead of the small surface of the keel to prevent distorting the keel.
Procedure
Step 1 Determine the position for installing the pRRU3902 based on the construction blueprint and
the clearance requirements.
Issue 06 (2015-10-30)
Figure 8-25 Locking the protection screw
(1) M4 threaded hole
The mounting bracket of the pRRU3902 can be installed on the keel of the following
specifications: GBT 11981-2008, JIS A6517-2002, and ASTM C635 C635M-2007. The
installation mode depends on onsite requirements because there are various keels.
This section describes the procedure of installing a pRRU3902 on the keel of JIS
standard used in Japan. The procedure of installing a pRRU3902 on other keels is the
same as that of installing a pRRU3902 on the keel of JIS standard.
NOTE
For details about the clearance requirements, see
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
(2) Hole for self-tapping screws
8.1.3 Space
Requirements.
8 Installing a pRRU3902
(3) Quincunx screw
112
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