Interfaces
Rev. 1.7
47Mellanox Technologies
4.2.1.3 Power Supply Status LEDs
Figure 27: Power Status LED
There are two power supply inlets in the system (for redundancy). The system can operate with
only one power supply connected. In case the power supply is an FRU, a second power supply
unit can be added to support hot-swap ability. Each power supply unit has a single 2 color LED
on the right side of the unit, that indicates the status of the unit.
Figure 28: Rear Side Panel
The primary power supply (PS) unit is located on the left side and the secondary unit is located
on the right side.
Table 16 - Power Supply Unit Status Front LED Assignments
LED Behavior Description Action Required
Solid green All plugged (one or two) power supplies
are running normally.
N/A
Solid amber One or both of the power supplies are
not operational or not powered up/ the
AC power cable is disconnected
Make sure the AC cable is plugged
in and active. If the problem
resumes, the FRUs might be faulty,
and should then be replaced.
Off N/A N/A
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