Fault Isolation And Correction - Transition Networks C/T1E1-CF-01 User Manual

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.
TP
AISFiber
Fiber TP
Set switches 5, 6, and 7 to
enable test functions or to
permit normal network
operation. (Switch 8 not used.)
5 6 7 8
KEY
1
= UP
= DOWN
1
1
1
1
1
*Switch #8 not used.
Set the MDI/MDI-X switch to use straight-through cable where crossover-
configuration cable is required.
MDI
1 RTIP TTIP
Twisted
Pair #1
2
RRING TRING
TTIP RTIP
4
Twisted
Pair #2
5 TRING RRING
Connectors for unlike devices
1 2 3 4 5 6 7 8
*NETWORK Switch Settings
Normal Operation
2
Loop Transmit TP
to Receive TP
2
Transmit All Ones onto
Fiber on loss of SDFiber
2
NO Transmit All Ones
onto Fiber
2
Transmit All Ones onto
TP on loss of SDTP
2
NO Transmit All Ones
onto Twisted-Pair
2
MDI-X
1 RTIP RTIP
Twisted
Pair #1
2
RRING RRING
TTIP TTIP
4
Twisted
Pair #2
5 TRING TRING
Connectors for like devices