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InfiniBand Switch Platform Hardware User Manual
20. Connect the power cords to the PSUs.
21. Check the Status LEDs and confirm that all of the LEDs show status lights consistent
with normal operation.
22. You can start connecting all of the cables to the switch.
1.6.4
Ground Connections
Make sure to connect the ground post to a valid electrical ground. Use a grounding lug
and a ground wire of sufficient capacity to safely convey a potential discharge. The
grounding post is M-6 with 1mm pitch threads. A ground wire of AWG 6 or 4mm diam-
eter is recommended for grounding this device. The chassis is concurrently grounded
through each of the PSUs. Only connect the PSU cords to properly grounded outlets. Do
not rely on the PSU grounds. It is absolutely necessary to connect the grounding post.
Make sure the connections are solid and permanent. If you choose to not use the ground
screw, make sure that the rack is properly grounded and that there is a valid ground con-
nection between the chassis of the switch and the rack. Test the ground using an Ohm
meter.
1.7
Power Connections
The switch includes integrated hot-swap power supplies which support up to 4 load-shar-
ing 1000W. The slots for the power supply units (PSUs) are on the spine side. The left
side has odd numbered PSUs and the right side has even numbered PSUs. Each PSU has
a dedicated AC inlet. This design enables the optional use of separate main and backup
Mellanox Technologies
Warning: Any yellow status LEDs is cause for concern and must be dealt with imme-
diately.
It can take up to 5 minutes to boot up, during which time the status LED may indicate
flashing green.
Figure 19: Ground Connectio n
Mellanox
®
Fan #1
S1
S2
S3
S4
S5
S6
Ground Post
Fan #2
Fan #3
Fan #4
ESD Post
IS5200
32
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