INS_CNGE20FX4TX16MS
04/30/18 PAGE 146
INSTALLATION AND OPERATION MANUAL
CNGE20FX4TX16MS
TECH SUPPORT: 1.888.678.9427
APPENDIX
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’ configura tion or status.
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