48
01-0868-401B 12/02
Troubleshooting
3. The Fault History log displays.
If no faults exist, the LCD displays
No Faults
.
4. To view all faults in the history log, press the Up button. If the LCD does not
change, only one fault exits in the log.
Viewing the Fault History Log Using a Remote Unit
To view fault history log using a remote unit, issue the
FH
command. The unit
responds with either
No Faults
if none are present, or one or more fault
messages.
The remote unit displays the fault history log beginning with the time and day tag
followed by the fault descriptor.
For example, assume that it is August 21, 2003, and it is 4:25 pm. You notice that
the Fault LED is illuminated and you query the fault history log. The remote
terminal displays the following information:
Fault Log
--------------------------------------------------
16:25:03 21/08/2003, DC, FIFO Overflow (Transport Demux Input)
15:23:17 21/08/2003, DC, FIFO Overflow (Transport Demux Input)
08:57:39 21/08/2003, QD, Input Signal Loss
03:34:05 20/08/2003, DC, Input Signal Loss (PCR not found)
The query response shows:
■
The type of information queried —
fault log
■
A listing of all faults in the fault history log, with a corresponding time and
day stamp for each fault listed
Fault Summary
Most TDR60 faults are non-critical, informational faults. When faults occur,
perform the following steps:
■
If the unit is functioning normally, clear the faults and continue operations.
■
If the unit continues to fail:
❒
Reset the box to the defaults
❒
Configure the unit to the site specific parameters
❒
If the unit is still not operating properly, query the current faults to
determine if a current fault exists. Correct all current faults.
❒
Query and review the fault history log. Correct all faults, if possible.
❒
Clear all faults.
❒
Query the current faults and fault history log.
❒
If the unit continues to fail, record the fault history. Contact Tiernan
Customer Service for assistance.
Fault History
15:23:17
VD HW Fault
Fault History
No Faults
Содержание TDR60
Страница 10: ...viii 01 0868 401B 12 02 Preface...
Страница 14: ...4 01 0868 401B 12 02 TDR60 Overview...
Страница 48: ...38 01 0868 401B 12 02 Using a Remote Unit...
Страница 66: ...56 01 0868 401B 12 02 Technical Specifications...
Страница 74: ...64 01 0868 401B 12 02 QPSK Demodulator Application Notes...