Agilent Technologies OmniBER 718 SDH User Manual page 257

Storing, Logging and Printing
Logging Results
When a logging period is selected, then the user can choose whether
are to be logged at the end of each period or a
selection is in addition to that already made on the SETUP
page.
The WHEN selection allows the user to have results logged
each logging period or only when the error count for the logging period is greater
than 0 ie
PERIOD EC>0
ERRORS is displayed.
The TYPE selection allows the user to choose whether the results logged at the end
of each period are the Cumulative Results, Period Results or both. The definitions
for these two result types are as follows:
Period Results: The Results obtained over a set period of time during the test ie the
logging period.
Cumulative Results: The results obtained over the elapsed time since the start of the
test period.
Logging Results Examples
There are four phases of results logging:
• Start of measurement - Header is logged
• During the measurement - Alarm events and if enabled error events
• End of logging period - Complete set of period and cumulative results
• End of measurement - Complete set of cumulative results.
Logging Header
When the measurement is started the logging header provides a record of the
instrument configuration that produced the results.
|==============================================================================|
|
|
|------------------------------------------------------------------------------|
| Receive Signal
| Mapping
| Selected TU
| TCM Path
| Payload (Struct)
| Test Signal
| Tributaries
| Pattern
|
| MEASUREMENT STARTED
|------------------------------------------------------------------------------|
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SELECTED
. If the error count is 0 then the message NO BIT
OmniBER 37718
Instrument Configuration
: STM-16 OPTICAL STM-1 under test
: AU-4 TU-12 ASYNC 2Mb/s
: TUG3[1] TUG2[1] TU[1]
: OFF
: PCM30CRC
: 64kb/s
:
: 2^11-1 Polarity
14 Jul 00 12:39:49 Print Period
results
ALL
subset. Note that this
LOGGING CONTENT
at the end of
ALWAYS
|
|
: 1 |
|
|
|
|
|
64kb [ 1] |
: NORMAL |
|
OFF |