Transition Networks E-TBT-FRL-03(L) User Manual Download Page 4

OPERATION 

After installation, the media converter should function without operator
intervention. 

Status LEDs

Use the status LEDs to monitor media converter operation in the network. 

Link 

(near 10BASE-FL connector)

Steady green LED indicates good

10BASE-FL link and normal operation.

Dark LED indicates lack of power OR downed 10BASE-FL
link.

RX (Receive 

near 10BASE-FL connector

Flashing green LED

indicates data reception on 10BASE-FL link.

Link 

(near 10BASE-T connector)

Steady green LED indicates good

10BASE-T link and normal operation.

Dark LED indicates lack of power OR downed 10BASE-T
link.

RX (Receive 

near 10BASE-T connector

Flashing green LED

indicates data reception on 10BASE-T link.

P(o)w(e)r Steady green LED indicates connection to external AC

power.

FAULT ISOLATION and CORRECTION

If the media converter fails, isolate and correct the fault by determining the
answers to the following questions and then taking the indicated action:

1.

Is the P(ower) LED on the media converter illuminated?
NO

Is the power adapter the proper voltage and frequency for AC
outlet?  NOTE: Refer to “Power Supply Requirements” on page 7. 

Is the power adapter properly installed in the media converter and
in the outlet?

Contact Technical Support: (800) 260-1312/(800) LAN-WANS.

YES

Proceed to step 2.

2.

Is the green 10BASE-T 

Link

LED illuminated?

NO

Check twisted pair cables for proper connection.

Contact Technical Support: (800) 260-1312/(800) LAN-WANS.

YES

Proceed to step 3.

3.

Is the green 10BASE-FL 

Link

LED illuminated?

NO

Check fiber cables for proper connection.

Verify that TX and RX cables on media converter are connected to
RX and TX ports, respectively, on other device.

Contact Technical Support: (800) 260-1312/(800) LAN-WANS.

YES

Proceed to step 4.

4.

Is the amber 10BASE-T RX LED illuminated?
NO

Restart the workstation to restart the initialization process.

Contact Technical Support: (800) 260-1312/(800) LAN-WANS.

YES

Proceed to step 5.

5.

Is the amber 10BASE-FL RX LED illuminated?
NO

Restart the workstation to restart the initialization process.

Contact Technical Support: (800) 260-1312/(800) LAN-WANS.

YES

Contact Technical Support: (800) 260-1312/(800) LAN-WANS.

10BASE-T

ST Connectors

RX

TX

Link

RX

Link

RX

Pwr

(Fiber)

Link

RX

Pwr

RX

Link

(RJ-45)

RJ-45 Connector

10BASE-T

10BASE-FL

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