Troubleshooting - Advantech EKI-7708 Series User Manual

5.1

Troubleshooting


Verify that the device is using the right DC power cord/adapter, or the device
may be damaged.

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 connec-
tions, 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, so the user can be guided towards 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. Check for loose power connections,
power losses, or surges, at the power outlet. If you still cannot resolve the prob-
lem, contact a local dealer for assistance.

If the LED indicators are normal and the connected cables are correct but pack-
ets still cannot be transmitted, please check the user system's Ethernet device
configuration or status.
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