KTI Networks KCD-303P-A1 - Manual (Page 17)

The following figure illustrates a connection example between two POF ports located on two devices:
Make sure the Rx-to-Tx connection rule is followed on the both ends of the cable.
3.3 LED Indication
LED Function State Interpretation
POWER Power status ON The power is supplied to the device.
OFF The power is not supplied to the device.
Px Link/Act. Port Px link status ON Port link is established. (No traffic)
BLINK Port link is up and there is traffic.
OFF Port link is down.
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