
LED Indicators on the Switch
LED Indicators for Port Connections
Link LED
The green Link LED indicates when a device is detected on the other end of the port
Table 
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 | Table  | |
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| State | 
 | Status | 
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| On | 
 | Normal data/link pulse reception | 
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| Off | 
 | No  | 
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 | Wrong cable type, check for crossover or  | 
| 
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 | Link pulse disabled at other end | 
| 
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 | No power to the switch,  | 
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100Mbps Operation LED
The yellow 100Mbps LED indicates whether 10Mbps or 100Mbps device is connected to the port.
Table 
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 | Table  | |
| 
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| State | 
 | Status | 
| 
 | 
 | 
 | 
| On | 
 | A 100Mbps device is connected to a port or the uplink port | 
| 
 | 
 | 
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| Off | 
 | A 10Mbps device is connected to a port or the uplink port | 
| 
 | 
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FDP LEDs (FS4016E Only)
The green FDP LED indicates port operation in full- or 
Table 
State
Status
On
Port is in 
Off
Port is in 
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