Radyne ComStream TIERNAN SE4000, Инструкция по установке и эксплуатации

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SE4000 MPEG-2 Contribution Encoder Troubleshooting
01-0934-401-B 6-5
6. To view all faults in the history log, use the up or down buttons. Faults stored in the fault
history log are displayed on the front panel LCD in ASCII string format and consist of:
•
A time tag.
•
The name of the fault.
•
For example, at 3:23 pm, the input source to the video encoder was interrupted. The
fault history log, when queried, would display:
•
15:23:17 VI.x Loss of input. Where:
•
15:23:17
is the time tag.
•
VI.x Loss of Input
is the name of the fault.
6.3.2 Viewing the Fault History Log Using a Remote Unit
To view the fault history log with a remote unit, issue the
FM LOG_LIST
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 the current day is August 21, 2003, at 4:25 pm. The status LED is
illuminated. The fault history log is queried. The
FM LOG_LIST
command is issued. The remote
terminal displays the following information:
Fault Log at 16:25:43 08/21/2003
--------------------------------------------------
15:23:17 08/21/2003, VI.x Loss of Input
08:57:39 08/20/2003, VI.x Loss of Input
The query response shows:
•
The type of information queried:
fault log
•
The time the query was issued:
16:25:43
•
The day of the year the query was issued:
08/21/2001
•
A listing of all faults in the fault history log
6.4 Fault Relay Monitoring
The Form-C fault relay is a real-time indicator for specific fault conditions. The relay contacts are
passive.
A Form-C relay has a common contact (C) and two other contacts (A and B). Normally the
common contact is connected to A and not to B.
When the relay is indicating a fault condition, the common contact C is connected to B and not to
A. this relay indicated a fault condition when power has failed. A power failure, power switch
turned off, or an unplugged unit is defined as a fault condition.
When the fault relay detects a fault condition, the fault relay trips and the Status LED illuminates
red.