Explanation for LED indicator lamp
LED indicator lamps serve as device monitoring and trouble display. The following is the explanation for each
LED indicator lamp.
LED
indicator
lamp
Status
Explanation
FX
Link/Act
（
FPL
）
On
Connection status display for fiber link.
“ON” indicates that Fiber link is in correct
connection.
Blink
“Blink” indicates is transmitting through Fx
end..
TX
Link/Act
（
TPL
）
On
Connection status display for Ethernet link.
“ON” indicates that Ethernet link is in correct
connection.
Blink
“Blink” indicates is transmitting through Tx
end.
FDX
（
10/100
）
On Transceiver works in the full duplex mode.
Off Transceiver works in the half duplex mode.
PWR
On
Power is on and normal.
FX/100
（
FRX
）
On Transfer rate of optical interface is 100Mbps.
TX/100
（
TRX
）
On Transfer rate of electric interface is 100Mbps.
Off Rate of Ethernet interface is 10Mbps
Trouble shooting:
1. Device is not matched. Please select the corresponding network device according to the transfer rate of the
product (10Mbps or 100Mbps) when connected to other network devices (network card, hub, switch).
2. Excessive optical loss in connector plug-in and fiber welding and excessive intermediate nodes may cause
excessive loss rate or abnormal operation.
