KTI Networks KS-117FM-V - Manual (Page 18)

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2.9 LED Indications
Functions
POWER :
indicates the status of the power supplied to the switch.
100/10 : indicates the connection speed between the TP port
and the associated connected device.
LINK/Act. : indicates the port link and activity status
FDX/Col. : indicates the duplex mode and collision occurrences
The following table lists the LED states and the indications:
LED State Indication
POWER OFF No power is supplied to the device.
POWER ON Power is supplied to the device.
100/10 OFF 10Mbps is used.
100/10 ON 100Mbps is used.
LINK/Act. OFF No active cable link
LINK/Act. ON An active link is established.
LINK/Act. Blink Tx/Rx activities
FDX/Col ON Full duplex is used.
FDX/Col OFF Half duplex is used.
FDX/Col Blink Half duplex and collision occurrences