Artesyn AXP1440, Installation And Use Manual, Page: 95 / 156

AXP1440 Shelf Installation
AXP1440 Installation and Use (6806800H23U) 93
4. Tighten all screws using a torque setting of 4.01 to 4.35 N-m.
NOTE: Failure to observe proper grounding practices may cause a variety of noise,
electrostatic discharge, and RFI (Radio Frequency Interference) problems.
5.5 Grounding the Shelf
Use a 2 AWG wire with a 2-hole copper lug and connect directly to the earth ground point
located on the right side of the back of the shelf; connect the other end of the wire to a reliable
earth ground. Use the torque setting required by the connector supplier. The 2-hole lug
prevents rotation of the lug and ensures a permanent bonding of ground to the shelf. The dual
hole mount accepts 1/4 #20 screws. Use Panduit LCC2-14AW-Q 2-hole lug or equivalent.
5.6 Shelf Ground Configuration
The AXP1440 shelf was tested in the default configuration of logic ground and shelf ground
connected and does not connect -48VDC Return with Shelf Ground. The system has been
tested in the default configuration and complies with safety and regulatory standards. As a
compliant AdvancedTCA shelf, the AXP1440 allows system integrator at their own discretion
to remove the mechanism which connects Logic Ground to Shelf Ground and install the
mechanism that connects -48VDC Return to Shelf Ground. If the system integrator exercises
Figure 5-3. Placement of Grounding Lug
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Back of Shelf