LED Indicators
The
FRIENDLYNET
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100Mbps
Link/Act
Power 
FDX /Col
Power
Figure 3-1 FS4004DS LEDs
Power
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Link/Act
FDX 
/ Col 
100Mbps
Link/Activity
Full Duplex/ Collision
Figure 3-2 FS4008DS LEDs
LED Indicators for Power Connections
After the Switch is turned on, the LED indicators should respond as follows:
❏All LED indicators blink momentarily. This represents a reset of the system.
❏The FDX/Col LED indicators blink from yellow to green.
❏The power LED indicator lights and remains ON. If this indicator is not lit, check to make sure that the AC power connector is properly connected in the socket and that the power switch is ON.
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