Chassis Ground Stud Connections For Ac And Dc Systems - Supermicro SuperServer SYS-111E-FWTR-EU User Manual

Note: The SYS-111E-FDWTR is DC-I and can be grounded in both CBN and IBN networks.
It is suitable for installation in Network Telecommunication Facilities and in locations where
the NEC applies. Connection of the +Return (BR) supports both North America, Isolated
GP (single point connection to CBN) and Europe, Integrated GP (Multiple point connection
to CBN) configurations. DC power source must meet TNV-2 requirements as defined by UL
62368 and IEC 62368-1.

Chassis Ground Stud connections for AC and DC systems

Both the AC and DC server products will include a chassis ground terminal as part of the
chassis. This terminal is identified with the IEC 60417 #5019 Protective Earth Symbol. This
equipment is designed to connect to the Common Bonding Network (CBN) of the facility in
which it is installed.
Figure 2-8. Chassis Ground Studs (Earth Ground)
The chassis ground connection should use a single 12 AWG conductor with a cable insulation
color of Green/Yellow. Multiple conductors are not allowed per attachment point. A standard
ring terminal is recommended for the connection to the GND stud.
The connection to the chassis ground stud must establish metal to metal contact. Paint
and other non-conductive coatings shall be removed on the surfaces between the mounting
hardware. The surfaces shall be cleaned and an anti-oxidant shall be applied before being
joined.
Prior to making crimp connections, coat all bare conductors with an appropriate anti-oxidant
compound. Bring the ground terminal and connecting hardware to a bright finish and coat
with an anti-oxidant before making a connection.
Do not mix copper and aluminum conductors (or other dissimilar metals) on the same
terminal. Use lugs rated for copper if using copper conductors, and aluminum-rated
lugs if using aluminum conductors
Chapter 2: Server Installation
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