Appendix B Troubleshooting - GE -DSH-73 User Manual

Appendix B
Troubleshooting
• 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: 100O Category 3, 4 or 5 cable
for 10Mbps connections, 100O Category 5 cable for 100Mbps connections, or
100O 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
175