Basic Operation and Installation
Rev 3.4
Mellanox Technologies
38
Figure 28: Top and Bottom Ports
To remove, disengage the locks and slowly pull the connector away from the port receptacle.
Both LED indicators will turn off when the cable is unseated.
Care should be taken not to impede the air exhaust flow through the ventilation holes next to the
InfiniBand ports. Cable lengths should be used which allow for routing horizontally around to the
side of the chassis before bending upward or downward in the rack.
3.6.7 Extracting and Inserting the Fan Unit
This switch can operate indefinitely with one of the three fans in the fan module inoperable so
long as the ambient temperature is below 45° Celsius.
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 20. for an explanation
of the model numbers and labels.
Figure 29: 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.
Operation without a fan unit should not exceed two minutes.
During fan hot-swap, if both indicators are OFF then the fan unit is discon-
nected.
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.
These air flow labels must be the same
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