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MAINTENANCE FUNCTIONS
REPLACEMENT OF FANS
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Note that you may be injured by carelessly touching the Equipment cases (upper and lower cases) or
the connector's projection.
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When replacing the fans, care should be taken not to catch the cables at the time of putting back the
cover.
٨
When replacing the fans, do not touch the parts or pattern on the PCB, because they may be broken by
static electricity, etc.
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Attach the fans properly. Neglect of this may increase vibrations or noise and reduce an internal
radiation effect, causing a trouble to the Equipment.
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Do not touch any rotating part of the fan.
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Do not pull the fan's cord by force or plug in its connector by force.
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The fans are fragile mechanical parts and should be carefully handled. Do not use them when they are
likely to have been given external shocks by dropping or striking.
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Prior to replacing the fans, eliminate static electricity beforehand.
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Do not touch the internal units of the concentrated apparatus.
٨
Do not use the Equipment with its cover removed. There are high-voltage parts inside, which may
induce an electric shock. When replacing the fans, particularly, be sure to disconnect the power plug
from the plug socket prior to starting work.
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Utmost care should be taken, following the warnings and cautions indicated inside the Equipment.
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Replace the two fans simultaneously about every 15,000 hours (about 20 months).
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After replacing the fans, turn on the Equipment and confirm that they are properly running.
The fans of the Equipment are expendable parts and need to be periodically replaced.
Replace two of them simultaneously about every 15,000 hours (about 20 months).
Also, replace them in the following cases:
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When the fans halt or when they slow down, while the Equipment is running.
٨
When e-mail
ޟ
THE TEMPERATURE OF VDSL DEVICE IS UNUSUAL
ޠ
is sent from the
Equipment (e-mail setting of the Equipment is required) and the fans halt or when they slow
down.
To purchase the fans, inquire our dealer. The following shows the product name of the fans.
Product Name
Quantity
SD4010B5H
2 pcs.
WARNING
CAUTION
ATTENTION