MyPower S4220 & S4320 Series Switch Installa
tion Manual V1.0
Maipu Confidential & Proprietary Information
Page 51 of 80
dedusted when the maintenance personnel dedusts the interface daughter card.
Step 2: Replace the interface daughter card to be dedusted. For details, refer to
6.1
Change Interface Daughter Card
.
Step 3: Dedust the replaced interface daughter card.
There are many methods to dedust the interface daughter card. However, the overall
principle is that the physical and elec trical specifications of the interface daughter card
cannot be damaged.
When using a vacuum cleaner, use a clean and dry anti-static soft brush to gently
remove the dust on the surface of the interface daughter card and meanwhile use the
suction nozzle of the vacuum cleaner to aim at the anti-static brush, which achieves the
brushing and absorbing the dust at the same time. Dedusting using a vacuum cleaner is
easy to operate and of low cost conserving. But this method cannot dedust thoroughly
and cannot effectively remove the noxious gas attached on the surface of the interface
daughter card.
When using the cleaning agent, use anhydrous, non-corrosive, non-conductive, and
high-volatile cleaning agent dedicated for the circuit board to dedust the interface
daughter card, IPA (isopropyl alcohol) for example. The advantage of using cleaning
agent is thorough and can effectively remove the harmful particles attached on the
surface of the interface daughter card. This method is characterized with difficult
operation and high cost.
6.3.3 Dedust the Optical Interface and Pigtail
Connector
To ensure the long-term stable running of the router, dedusting the optical interface and pigtail
connector of the router is necessary.
The dedusting process is as follows:
Step 1:
Remove the optical fiber connected to the optical interface when cleaning the
optical interface.
Step 2:
Use the dedicated cleaning tools and materials when cleaning the optical
interface and pigtail connector. These materials can be purchased from the
optical fiber or optical cable manufacturer.
Use the dust cap to cover the unused optical interfaces on the board and pigtail.
For the optical interface in using, use a dust cap to cover the optical interface and the
