Interfaces Rev 1.6
Mellanox Technologies
41
3.2.1.3 Power Supply Status LEDs
Figure 33: 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 34: 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 Red PSU is faulty or 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