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Improper Network Topologies
It is important to make sure that you have a valid network topology. Common
topology faults include excessive cable length and too many repeaters or hubs
between end nodes. In addition, you should make sure that your network
topology contains no data path loops. Between any two ends nodes, there
should be only one active cabling path at any time. Data path loops will cause
broadcast storms that will severely impact your network performance.
Diagnosing LED Indicators
The switch can be easily monitored through panel indicators to assist in
identifying problems.
If the power indicator does turn on when the power cord is plugged in, you may
have a problem with the power outlet or power cord. However, if the switch
powers off after running for a while 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.
Cabling
RJ-45 ports: U
se unshielded twisted-pair (UTP) or shield twisted-pair (STP)
cable for RJ-45 connections: 100 Category 3, 4 or 5 cable for 10Mbps
connections or 100 Category 5 cable for 100Mbps connections. Be sure that
the length of any twisted-pair connection does not exceed 100 meters (328
feet). Gigabit ports should use Cat-5 or Cat-5e cable for 1000Mbps
connections and the length should not exceed 100 meters.