Installation Manual
6. Router Maintenance
60
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Step 3:
Dedust the replaced interface daughter card.
There are many methods to de-dust the interface daughter card. However,
the overall principle is that the physical and electrical 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. De-dusting using a vacuum cleaner is easy to operate and of low
cost conserving. But this method cannot de-dust 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 de-dust 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.
3.6.3.
De-dust Optical Interface and Pigtail Connector
To ensure the long-term stable running of the router, de-dusting the optical interface and
pigtail connector of the router is necessary.
The de-dusting 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 pigtail connector connected by the optical interface when
