![Allen-Bradley 177R-M4AXP Installation Instructions Manual Download Page 17](http://html1.mh-extra.com/html/allen-bradley/177r-m4axp/177r-m4axp_installation-instructions-manual_2900316017.webp)
Industrial Non-display Computers
17
Rockwell Automation Publication 6177R-IN001G-EN-P - July 2013
Connect to a Network
The computers connect to an Ethernet network by using twisted-pair Ethernet cabling with
RJ45 connectors.
Replace the RTC Battery
The computers use nonvolatile memory that require a battery to retain system information when
power is removed. The 3V, 200 mAh lithium battery is on the system board.
The battery life depends on the amount of time the computer is powered on.
If the computer does not display the correct time and date, replace the battery.
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
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.
Estimated Battery Life Span
On-time
Expected Battery Life
0 hr/wk
4 yr
40 hr/wk
5.5 yr
80 hr/wk
7 yr
750R and 1450R
Battery
650R