Mellanox Technologies MetroX TX6240, Руководство пользователя по оборудованию

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Installation Rev 1.1
Mellanox Technologies 26
2.5 Grounding
2.5.1 TX6240/TX6280 Grounding
Check to determine if your local or national electrical codes require an external ground to all IT
components. If so, connect a ground wire to one of the casing screws and connect the other end to
a valid ground. 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 system, and the
rack. Test the ground using an Ohm meter.
2.5.2 MEX6200 Grounding
For your protection and to prevent possible damage to equipment when a fault condition occurs
on the cables connected to the equipment (for example, a lightning stroke or contact with high
voltage power lines), the case of the MEX6200 unit must be properly grounded at all times. Any
interruption of the protective (grounding) connection inside or outside the equipment, or the dis-
connection of the protective ground terminal, can make this equipment dangerous. Intentional
interruption is prohibited.
When an MEX6200 unit is installed in a rack, make sure that the rack is properly grounded and
connected to a reliable, low resistance grounding system.
Before connecting any cables, the protective ground terminal of the MEX6200 must be con-
nected to a protective ground (see Connection Data.
The grounding must also be made through the AC power cable, which should be inserted in a
power socket (outlet) with protective ground contact. Therefore, the power cable plug must
always be inserted in a socket outlet provided with a protective ground contact, and the protective
action must not be negated by use of an extension cord (power cable) without a protective con-
ductor (grounding).
Some national and/or local codes may require IT components to be bonded and exter-
nally grounded (not including the power cord ground). You must follow all national
and local codes when installing this equipment.
Any interruption of the protective (grounding) conductor (inside or outside the
device) or disconnecting the protective earth terminal can make the device dangerous.
The MEX6200 protective ground terminals must be connected to protective ground
before power is applied and before connecting any other cable. This connection is
made through the AC power cable.
The power cord plug should only be inserted in an outlet provided with a protective
ground (earth) contact. The protective action must not be negated by using an exten-
sion cord (power cable) without a protective conductor (grounding).