R240D
Hardware Installation and Maintenance Guide
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
2. Cover an unused optical module with a protective cap to prevent dust, as shown in
Figure 5-97.
Figure 5-97 Installing a protective cap
If no protective cap is available, use fibers to protect the optical module, as shown in
Figure 5-98.
Figure 5-98 Using fibers to protect an optical module
3. Cover unused optical connectors with protective caps, as shown in Figure 5-99, and then
lay out fibers on the fiber rack or coil them in a fiber management tray to prevent fibers
from being squeezed.
Figure 5-99 Installing a protective cap on a fiber
4. If a receptacle or an optical connector has not been used for a long time and is not
covered with a protective cap, you need to clean it before using it. Clean a receptacle
with a cotton swab, as shown in Figure 5-100. Clean an optical connector with cleaning
tissues.
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