Huawei DBS3900 Installation Manual page 33

RRU3260
Installation Guide
If an RU is installed on the bitumen ground, the RU must be at least 500 mm (700 mm or
more as recommended) away from the bitumen ground. The following describes the space
requirements for installing multiple RUs on the non-bitumen ground.
Recommended Clearances for Three or More RUs Installed on a Pole
Figure 3-23
mode.
Figure 3-23 Recommended clearances for three or more RUs installed on a pole
Minimum Clearances for Three or More RUs Installed on a Pole
Figure 3-24
Issue 05 (2014-06-30)
 The recommended clearances ensure normal running and provide an appropriate space for operation
and maintenance (OM). If there is sufficient space, retain the recommended clearances.
 The minimum clearances ensure normal running and heat dissipation but do not allow OM activities
such as checking indicator status and opening the cabling cavity. If the installation space is
insufficient, retain the minimum clearances after the installation.
shows the recommended clearances for multiple RUs installed in centralized
shows the minimum clearances for multiple RUs installed in centralized mode.
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