The back of the PSU has a power switch, three status LEDs and a socket for the power cord, as shown in
the following figure.
Cooling module
The five cooling modules at the rear of the enclosure maintain all system components below their
maximum temperature, assuming the ambient temperature is below 95° F (35°C).
The speed of the fans in the cooling modules is controlled by the SSB I/O modules. For more information
about the system airflow, see “System airflow” on page 17.
Cooling modules can be hot-swapped while the enclosure is still running, assuming that only one module
is removed at a time and the swap takes no longer than two minutes. Ensure you have a replacement
cooling module before you remove the defective cooling module.
The following figure shows a cooling module.
Figure 12. PSU LEDs
16 Installation and User Guide - Model 084
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