Ground Connections; Figure 28: Placement Of Chassis In Rack; Figure 29: Ground Connection - Mellanox Technologies MSX6536-10R Hardware Installation Manual

You will most likely need extra room for cable bending on the connector side of the chassis and
should plan to keep the spine side as close to the rack door as possible, thus having more room
for the cables. See Figure 1.6.5 on page 32.

1.6.5 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-8 with 1.25mm pitch threads. A ground wire of AWG 6 or 4mm diameter is recommended for
grounding this device. The chassis is concurrently grounded through each of the PSUs. Only con-
nect 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 connection between the chassis of the switch and the rack. Test the ground
using an Ohm meter.
32

Figure 28: Placement of Chassis in Rack

Doors
19" (482.6mm)
Shelf
Chassis
Insufficient room for recommended
bending radius
Doors

Figure 29: Ground Connection

RACK
Cable with
recommended
bending radius
Connector side
Spine side
Grounding post
Installation
Mellanox Technologies