EKI-7712 Series User Manual
161
5.1
Troubleshooting
Verify that the device is using the right power cord/adapter (DC 48V); please do
not use a power adapter with DC output higher than 48V, 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
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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.
Summary of Contents for EKI-7712 Series
Page 1: ...User Manual EKI 7712 Series 8FE 4G 8GE 4G SFP port L2 Managed Switch ...
Page 16: ...Chapter 1 1Product Overview ...
Page 25: ...Chapter 2 2Switch Installation ...
Page 41: ...Chapter 3 3Configuration Utility ...
Page 47: ...Chapter 4 4Managing Switch ...
Page 175: ...Chapter 5 5Troubleshooting ...