Microsens MS655102/12x - Manual (Page 20)

18
Troubleshooting
 Verify that you are using the right power cord/adapter. Please don’t use
the power adapter output higher than the power input of this switch, or it
will burn this switch down.
 Select the proper UTP/STP cable to construct your network. Please check
that you are using the right cable. Use unshielded twisted-pair (UTP) or
shield twisted-pair (STP) cable for RJ-45 connections: 100Ω Category 3,
4, or 5 cable for 10Mbps connections or 100Ω Category 5 cable for
100Mbps 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 LED 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 your local dealer for assistance.
 If the LED indicators are normal with the correctly connected cables and
the packets still cannot transmit, please check your system
’s Ethernet
devices
’ configuration or status.