Dell Networking S4048 Kurulum Kılavuzu - Sayfa 31
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The S4048–ON comes from the factory with one PSU and three fan modules installed in the chassis. The fan modules and the power
supplies, which have integrated fans, are hot-swappable.
NOTE:
To run the system, the three fan slots must have operating fan units. If you do not install a module in each slot, the system
shuts down in one minute.
In addition to the power supply modules, you can order and install fan modules separately.
The S4048-ON supports two airflow direction options. Do not mix airflow types in a chassis; you can use only a single airflow direction in a
chassis. If the airflow directions are mismatched, the S4048-ON powers down in one minute.
•
Normal—airflow is from the I/O-side to the PSU-side
•
Reversed—airflow is from the PSU-side to the I/O-side
All fans and PSUs in a configuration must be in the same airflow direction.
Environmental factors can decrease the amount of time required between fan replacements. Check the environmental factors regularly. An
increase in temperature and/or particulate matter in the air might affect performance; for example, new equipment installation.
CAUTION:
Check the fans at six-month intervals and replace them as necessary. Regularly monitor the speeds of the cooling
fans in order to accurately determine replacement intervals.
Topics:
•
Components
•
Fan module installation
•
Fan module replacement
•
After S4048–ON installation
Components
The following are the S4048–ON fan components:
•
S4048–ON AC power supply with integrated fan module
•
S4048–ON AC power supply with integrated fan module—reverse flow
Figure 20. S4048–ON fan modules
7
Fans
Fans
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