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.
215
11.2 Installation Clearance and Space Requirements
This section describes the recommended and minimum clearances for an EXD3902.
The recommended clearances are for customers, ensuring normal running and providing appropriate
space for O&M. If installation space is sufficient, leave the recommended clearances after installing
equipment.
The minimum clearance ensures normal operation and heat dissipation, but O&M activities such as
checking indicator status and opening the cover plate of a cabling cavity cannot be properly
conducted. If installation space is sufficient, leave the minimum clearance after installing equipment.
Clearance for an EXD3902
Figure 11-6 shows the clearances for installing an EXD3902.