Cabling - Mellanox Technologies Grid Director 4036E Installation Manual

7.3

Cabling

Consider the overall cluster configuration to determine the optimal cable length. Proper
planning will produce orderly and maintainable cabling.
For the InfiniBand cables, we recommend dressing the cables from each row of QSFP
connectors into two groups running them left and right, fastening them down gently after
verifying the connectivity, and routing them down along the rack sidewall.
This section assumes that you have already determined the cable lengths and inter-rack cable
routing.
The cables are connected to the Grid Director 4036E rear panel.

To connect a cable to a Grid Director 4036E:
1. Insert the cable into the Cabling Guide bracket, if it applies.
2. Position the connector opposite a connector located on the rear of the 4036E chassis.
Depending upon the connector type, squeeze the tabs on either side of the head shell and
push the connector in place.
OR
Gently push the latch and push the connector in place.
3. Verify that the cable is inserted properly into the connector by gently tugging the cable;
verify that the Link State green-colored LED lights (and does not flash) indicating a good
physical connection.
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NOTE: You can connect and disconnect cables while the Grid Director 4036E is
powered on.
Cabling
Chapter 8