QDR InfiniBand Switch Platform User Manual
Rev 2.9
Mellanox Technologies
35
3.6.6 InfiniBand 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 GREEN LED indicator,
corresponding to each QSFP port, will light when the physical connection is established (that is,
when the unit is powered on and a cable is plugged into the port with the other end of the connec-
tor plugged into a functioning port). After plugging in a cable, lock the connector using the latch-
ing mechanism particular to the cable vendor. When a logical connection is made the yellow light
will come on. When data is being transferred the yellow light will blink.
Figure 24: 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.
Cables in the bottom row should be inserted up side down in relation to the
how the cables are inserted in the top row.
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.
