TP-Link MC112CS - Manual (Page 11)

5
Name Status Indication
On Power on
PWR
Off Power off
On The Link Fault Pass Through function enable.
LFP
Off The Link Fault Pass Through function disable.
On There’s a valid link.
Flashing
The converter is receiving or transmitting
data from the fiber optic connector.
FX Link/Act
Off There’s no valid link.
On The TP port is connected to 100Base-Tx
SPD
Off
The TP port is connected to 10Base-Tx
device or no connection.
On The TP port is operating in Full-Duplex
Flashing There’s a collision.
FDX/Col
Off The TP port is operating in Half-Duplex mode.
On There’s a valid link.
Flashing
The converter is receiving or transmitting
data from the TP port.
TP
Link/Act
Off There’s no connection on the TP port.