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DBS3900 LampSite 
Installation Guide 
6 Installing an RHUB 
 
Issue 08 (2016-05-30) 
Huawei Proprietary and Confidential         
Copyright © Huawei Technologies Co., Ltd. 
14 
 
Figure 6-2
 Installing mounting ears in standard mode 
 
 
 
In reverse mode, the front of the mounting ear is 31 mm away from the RHUB panel, as 
shown in Figure 6-3.   
Figure 6-3
 Installing mounting ears in reverse mode 
 
 
Installing an RHUB in a 19-Inch Cabinet or Rack 
Installing an RHUB in a 19-inch cabinet or rack: Secure the mounting ear to the mounting 
bracket by using M6 screws.   
 
If there are no other modules installed in the 1 U space near the RHUB, install the 
RHUB directly. Otherwise, remove the modules before installing the RHUB.   
 
Before installation, you need to check the installation mode supported by the rack and 
adjust the position of the mounting ear.   
Figure 6-4 and Figure 6-5 show RHUBs installed in a cabinet or rack, respectively.