Huawei USG9500 Series Hardware Manual page 417

HUAWEI USG9500 Series
Hardware Guide
Step 5 Install an air filter on the air intake frame.
1.
Issue 03 (2017-12-15)
Figure 3-48 Removing the air filter from the SFU area on the USG9580
Place the clean and dry air filter onto the panel of the air intake frame. Put your fingers
in the holes on both sides of the panel to install the panel back into its original position,
as shown in Figure 3-49.
Figure 3-49 Installing the air filter on the air intake frame of the USG9580
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