Router Maintenance
MP1900X Series Router Installation Manual
6-6
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and ventilation for the router. During the router operation, the fan vanes in the fan
module will absorb the dust in the around air. When the amount of the dust reaches a
certain degree, the dust will affect the stable running of the fan module and will also be
the pollution source of other service boards on the router. This further brings the
potential danger for the stable running of the router.
To ensure the long-term stable running of the router, the maintenance personnel should
de-dust the fan of the router regularly, once one year recommended. When de-dusting
the fan of the router, the maintenance personnel should correctly wear the anti-static
wrist or gloves and use the cleaning tools, such as clean cotton yarn, anti-static brush,
and vacuum cleaner to de-dust the vanes of the backup fan and the air inlet and outlet
of the router.
6.3.2
De-dust the Interface Daughter Card
To reduce the maintenance risks, de-dust the interface daughter card of the router
in the period with small traffic volumes.
During the router operation, due to the charged interface daughter card and cross
ventilation in the router dissipation, the interface daughter card will inevitably absorb
and accumulate the charged particle or dust in the air. When the air cleanliness is
weaker and the relative humidity is lower, this absorption process is stronger. When the
dust accumulates to a certain degree, the heat dissipation rate and electrical insulation
performance will be badly affected, which further brings potential dangers for the stable
running of the router.
To ensure the long-term stable running of the router, the maintenance personnel should
de-dust all the service boards comprehensively and regularly, once for two years
recommended.
The de-dusting process is as follows:
Step 1: Prepare a standby interface daughter card for the interface daughter card to be
de-dusted when the maintenance personnel de-dusts the interface daughter card.
Step 2: Replace the interface daughter card to be de-dusted. For details, refer to
6.1 Change
Interface Daughter Card
.
Step 3: Dedust the replaced interface daughter card.
