Setup
Power Blazer 227
BERT and Unframed BERT
Note: The Service Disruption Time measurement supports a parent defect
approach where the SDT measurement is triggered when the selected
defect or a higher defect in the signal structure hierarchy is detected. For
example, if Bit Error is selected, an OPU AIS error will trigger an SDT event.
No Defect Time (ms) allows selecting the period without any defects
before stopping SDT measurement: 0.005 ms to 2000 ms (default is
300 ms).
Disruption Monitoring check box when selected (disabled by
default) enables the disruption time measurements. However, the
measurement will only start if the test is already started, or when the
test will be started. Clearing the Disruption Monitoring check box or
stopping the test, stops the measurement without clearing the results.
Starting the test while the Disruption Monitoring check box is
selected resets the results.
FEC FEC CORR, FEC UNCORR
OTUk
c
AIS, LOF, OOF, LOM, OOM, BDI, IAE, BIAE, BIP-8, BEI, FAS, MFAS
ODUk
c
AIS, OCI, LCK, BDI, BIP-8, BEI, FSF, BSF, FSD, BSD
OPUk
c
AIS, CSF, PLM
d
, MSIM
e
, LOOMFI
e, f
, OOMFI
e, f
, OMFI
e, f
BER
g
Pattern Loss, Bit Error (default)
a. Not available with QSFP transceivers.
b. The service disruption time measurement is available per lane for OTL defects at the exception of LOL
which is global for all lanes. Refer to OTL-SDT on page 505 for results per lanes.
c. Only available on the top layer.
d. Available when the PLM check box is selected (refer to page 302 for more information).
e. Available with multiplex test only.
f. Available with OPU4 only.
g. Available when the No Pattern Analysis (Live) check box (see page 223) is cleared.
Layer Defect
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