LevelOne FSW-1671 - Manual (Page 42)

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path at any time. Data path loops will cause broadcast storms that will severely impact
the network performance .
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 turn on when the power cord is plugged in, the user may
have a problem with 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 the problem still cannot be resolved, please contact the local dealer for
assistance.
Cabling
RJ-45 ports: Use unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable
for RJ-45 connections: 100 Ω Category 3, 4 or 5 cable for 10Mbps connections or 100
Ω Category 5 cable for 100Mbps connections. Also be sure that the length of any
twisted-pair connection does not exceed 100 meters (328 feet). Gigabit port should use
Cat-5 or cat-5e cable for 1000Mbps connections. The length does not exceed 100
meters.