Rev 1.4
Mellanox Technologies
33
2.4.7.1
To extract a PSU:
Figure 22: PSU Pulled Out
1.
Remove the power cord from the power supply unit.
2.
Grasping the handle with your right hand, push the latch release with your thumb while pull-
ing the handle outward. As the PSU unseats, the PSU status indicators will turn off.
3.
Remove the PSU.
2.4.7.2
To insert a PSU
1.
Make sure the mating connector of the new unit is free of any dirt and/or obstacles.
2.
Insert the PSU by sliding it into the opening until a slight resistance is felt.
3.
Continue pressing the PSU until it seats completely. The latch will snap into place confirm-
ing proper installation.
4.
Insert the power cord into the supply connector.
5.
Insert the other end of the power cord into an outlet of the correct voltage.
2.4.8 Cable Installation
All cables can be inserted or removed with the unit powered on. To insert a cable, press the con-
nector into the port receptacle until the connector is firmly seated. The indicator, above each port,
will light green when the physical connection is established (that is, when the unit is powered on
Power supply units have directional air flows similar to the fan module. The Fan mod-
ule airflow must coincide with the airflow of all of the PSUs. If the PSU airflow direc-
tion is different from the fan module airflow direction the system will not cool
properly.
Do not attempt to insert the PSU with a power cord connected to it.
The PSU indicator should light green. If not, or if it is red, repeat the procedure starting
with Section 2.4.7.1.
Fan Unit
Power Side
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OK
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Mellanox
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OK
!
OK
!
OK
PSU1
I2C
