RUGGEDCOM ROS
User Guide
Chapter 3
Device Management
Clearing Cable Diagnostics 83
8. Click Apply. The state of the Ethernet port will automatically change to Stopped when the test is complete.
For information about how to monitor the test and view the results, refer to Section3.6.10.1, “Viewing Cable
Diagnostics Results” .
Section3.6.10.3
Clearing Cable Diagnostics
To clear the cable diagnostic results, do the following:
1. Navigate to Ethernet Ports» Clear Cable Diagnostics Statistics . The Clear Cable Diagnostics Statistics
form appears.
Figure34:Clear Cable Diagnostics Statistics Form
1.Port Check Boxes 2.Apply Button
2. Select one or more Ethernet ports.
3. Click Apply.
Section3.6.10.4
Determining the Estimated Distance To Fault (DTF)
To determine the estimate Distance To Fault (DTF), do the following:
1. Connect a CAT-5 (or better quality) Ethernet cable with a known length to the device. Do not connect the
other end of the cable to another port.
2. Configure the cable diagnostic utility to run a few times on the selected Ethernet port and start the test. For
more information, refer to Section3.6.10.2, “Performing Cable Diagnostics” . Open faults should be detected
and recorded in the system log.
3. Review the errors recorded in the system log and determine the average distance of the open faults. For more
information about the system log, refer to Section3.5.1, “Viewing Local Logs” .
4. Subtract the average distance from the cable length to determine the calibration value.
5. Configure the cable diagnostic utility to run a few times with the new calibration value. The distance to the
open fault should now be the same as the actual length of the cable. The Distance To Fault (DTF) is now
calibrated for the selected Ethernet port.
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