DBS3900 LampSite
Installation Guide
11 (Optional) Installing the EXD3902 and Cables
Issue 08 (2016-05-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
212
11.1 Installation Scenario
The EXD3902 can be installed on a pole or wall. Installation scenarios must meet
heat-dissipation and waterproofing requirements of the EXD3902.
Constraints and Limitations
Application scenarios:
To ensure proper heat dissipation of the EXD3902, the following requirements must be met:
The EXD3902 cannot be installed in an enclosed cabinet without a cooling system.
The EXD3902 cannot be installed in an enclosed camouflage box.
The EXD3902 cannot be installed in an enclosed equipment room without a cooling
system.
When multiple EXD3902s are installed in centralized mode, the minimum clearance
requirements must be met. For details, see 11.2 Installation Clearance and Space
Requirements.
If the EXD3902 is inappropriately installed, as shown in Figure 11-1, heat dissipation of the
EXD3902 deteriorates and the EXD3902 may not work properly.
Figure 11-1
Inappropriately installed EXD3902
Correct installation methods:
To ensure heat dissipation of the EXD3902 and waterproofing of the ports at the bottom of the
EXD3902, the vertical deviation angle of an EXD3902 must be less than or equal to 10°, as
shown in Figure 11-2.
