Follow these steps to connect the computer to a DC power source.
1. Verify the main power switch or breaker is off.
2. Verify that the DC power wires meet these requirements:
• Material: Stranded copper
• Wire gauge: 0.325…0.823 mm2
3. Secure the DC power wires to the terminal block screws, and the ground wire to the
GND terminal screw.
Tighten the terminal to a torque of 0.687 N•m (6.1 lb•in).
4. Apply 18…32V DC power to the computer.
The computers have 2 Gb LAN ports. The computers connect to an Ethernet network by using
CAT5 or CAT5E twisted-pair Ethernet cabling with RJ45 connectors.
Real Time Clock (RTC) Battery
This computer contains a lithium battery that must be replaced during the life of the computer.
The computers use nonvolatile memory that require a battery to retain system information when
power is removed. The battery is beside the DIMM1 slot.
The battery life depends on the amount of time the computer is powered on.
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 to be sure of reliable Ethernet
communication in an industrial environment. Rockwell Automation recommends that you
route all Ethernet cabling through dedicated metal conduits. Installing ferrite bead filters at
the cable ends can also improve reliability.