PLANET ISW-1022MPT - Manual (Page 163)

User’s Manual of ISW-1022M Series and ISW-1033MT
Appendix B Troubles shooting
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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.
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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).
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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.
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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.
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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
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