Chapter 5 Troubleshooting; Troubleshooting - Advantech EKI-7428 Series User Manual

5.1

Troubleshooting


Verify that is using the right power cord/adapter (DC 12-48V), please don't use
the power adapter with DC output higher than 48V, or it may damage this
device.

Select the proper UTP/STP cable to construct the user network. Use unshielded
twisted-pair (UTP) or shield twisted-pair (STP) cable for RJ-45 connections that
depend on the connector type the switch equipped: 100R Category 3, 4 or 5
cable for 10Mbps connections, 100R Category 5 cable for 100Mbps
connections, or 100R Category 5e/above cable for 1000Mbps connections. Also
be sure that the length of any twisted-pair connection does not exceed 100
meters (328 feet).
R = replacement letter for Ohm symbol.

Diagnosing LED Indicators: To assist in identifying problems, the switch can
be easily monitored through panel indicators, which describe common problems
the user may encounter and where the user can find possible solutions.

If the power indicator does not light on when the power cord is plugged in, you
may have a problem with power cord. Then check for loose power connections,
power losses or surges at power outlet. If you still cannot resolve the problem,
contact the local dealer for assistance.

If the LED indicators are normal and the connected cables are correct but the
packets still cannot be transmitted. Please check the user system's Ethernet
devices' configuration or status.
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