FAULT ISOLATION and CORRECTION
If the media converter fails, isolate and correct the failure by determining the
answers to the following questions and then taking the indicated action:
1. Is the Power LED on the media converter illuminated?
NO
• Is the power adapter the proper voltage and cycle frequency for the
AC outlet?
NOTE: Refer to the “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 SDFiber (Signal Detect/Fiber) 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 media converter.
• Contact Technical Support: (800) 260-1312/(800) LAN-WANS.
YES
• Proceed to step 3.
3. Is the SDTP (Signal Detect/Twisted-Pair) LED illuminated?
NO
• Check twisted pair cables for proper connection.
• Check RJ-45 Pinning Switch for correct twisted pair cable
configuration.
• Check integrity of device attached to media converter by twisted-
pair cable.
• Contact Technical Support: (800) 260-1312/(800) LAN-WANS.
YES
• Proceed to step 4.
4. Is the AISFiber LED on either media converter illuminated?
NO
• Proceed to step 5.
YES
• Determine if broken fiber link has caused All Ones Insertion (AIS)
on the fiber interface and correct failure. If not, proceed to step 5.
Set switches 5, 6, and 7 to
enable test functions or to
permit normal network
operation. (Switch 8 not used.)
Set the MDI/MDI-X switch to use straight-through cable where crossover-
configuration cable is required.
