Installation Manual
6. Router Maintenance
59
www.qtech.ru
anti-wrist gloves if they’ll work on the workbench.
The de-dusting tool and cleaning agent are selected based on a certain
standard. Otherwise, the board of the router will be severely damaged.
1.6.3.
De-dust the Fan
A fan is an important part of the router, which provides motive power of heat dissipation 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.
2.6.3.
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
