MP1900X Series Router Installation Manual
Router Maintenance
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2019 Maipu, all rights reserved
6-7
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.
6.3.3
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 the pigtail requires to
be removed. In this way, on the one hand, the invisible laser sent by the laser
maser can be prevented radiating human eyes. On the other hand, the dustproof
function is available to avoid the loss of the optical interface contaminated with dust
or pigtail connector being increased.
