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.
1
2
1
2
1
2
1
2
1
2
1
2
Loop Transmit TP
to Receive TP
NO Transmit All Ones
onto Fiber
Transmit All Ones onto
Fiber on loss of SDFiber
Normal Operation
NO Transmit All Ones
onto Twisted-Pair
Transmit All Ones onto
TP on loss of SDTP
5 6 7 8
*NETWORK Switch Settings
*Switch #8 not used.
1 2 3 4
5 6 7 8
Twisted
Pair #1
Twisted
Pair #2
1
2
4
5
RTIP
TTIP
RRING
TRING
TTIP
RTIP
TRING
RRING
RTIP
TTIP
RRING
TRING
RTIP
TTIP
RRING
TRING
Twisted
Pair #1
Twisted
Pair #2
1
2
4
5
MDI
MDI-X
Connectors for unlike devices
Connectors for like devices
KEY
= UP
= DOWN
Fiber
TP
TP
AISFiber
