Troubleshooting - Advantech EKI-7428G Series User Manual

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PPENDIX

Troubleshooting

Verify that is using the right power cord/adapter (DC 12-48V), please don't use the
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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
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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
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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
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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
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still cannot be transmitted. Please check the user system's Ethernet devices' configura-
tion or status.
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