SMART Embedded Computing 6806800V18A, Installation And Use Manual

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AXP1440-C07 Shelf Installation
AXP1440-C07 Installation and Use (6806800V18A) 101
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-C07 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-C07 allows the 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.
Figure 5-4 Placement of Grounding Lug
Back of Shelf
NOTICE
If the system integrator exercises the option of removing the connections from logic
ground to shelf ground and or adds the connection between -48VDC return and
shelf ground, the responsibility for maintaining compliance to CSA (C/US)/VDE
safety requirements and EMI/RFI emission limits rests entirely with the system
integrator and installer.