Rockwell Automation 6155F-NPWEDC Compact Non-display Computer - Manual (Page 23)

Rockwell Automation Publication 6155R-UM002E-EN-P - February 2014 23
Installation Chapter 2
Functional Ground Screw The pre-installed functional ground screw is not required for safety or regulatory
compliance. However, if a supplemental ground is desired, use the functional
ground screw below the power input.
If using the functional ground screw, connect the computer to earth ground by
using a 1.5 mm
2
(16 AWG) or larger external wire. Use a ground wire with green
insulation and a yellow stripe for easy identification.
Connect to a Network Depending on the model, the
computers have one or two
LAN ports. The computers
connect to an Ethernet
network by using CAT5 or
CAT5e twisted-pair Ethernet
cabling with RJ45 connectors.
IMPORTANT To prevent performance degradation of Ethernet communication, do not
subject the computer or cables to extreme radiation or conducted
high-frequency noise.
Proper cable routing and power conditioning is required for reliable Ethernet
communication in industrial environments. We recommend that you route all
Ethernet cabling through dedicated metal conduits. Installing ferrite bead
filters at the cable ends can also improve reliability.