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Appendix B Troubles shooting
Verify that is using the right power cord/adapter (DC 24-48V), 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: 100Ω
Category 3, 4 or 5 cable for 10Mbps connections, 100Ω Category 5 cable for 100Mbps connections, or 100
Ω 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).
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
User's Manual of ISW-1022M
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