Basic Operation and Installation
Rev 2.9
Mellanox Technologies
36
There are two possible air flows for the fan unit. The air flow depends on the switch model. An R
in the model number indicates a reverse air flow. See “Air Flow” on page 19. for an explanation of
the model numbers and labels.
Figure 25: Air Flow Labels
To extract a Fan Unit
1.
Using two hands, push both latch releases simultaneously while pulling the fan module out
of the switch. As the fan unseats, the fan status indicator will turn off.
Figure 26: Fan Module Latches
To insert a FAN Unit:
1.
Make sure the mating connector of the new unit is free of any dirt and/or obstacles.
2.
Insert the fan unit by sliding it into the opening until slight resistance is felt. Continue press-
ing the fan unit until it seats completely.
3.7
Disassembly of the Switch from the Rack
To disassemble the switch from the rack:
Make sure that the fans have the air flow that matches the model number. An air flow
opposite to the switch design will cause the switch to operate at a higher (less than
optimal) temperature.
The green fan status indicator should light. If not, extract the fan unit and reinsert it.
After two unsuccessful attempts to install the fan unit, power off the switch before
attempting any system debug.
Mellanox
!
OK
These air flow labels must be the same
Mellanox
!
OK
!
OK
These two latches must be pushed towards each other at the
same time while the module is pulled out.
