Test Setup - Test Configurator, Timer, and System
MaxTester 81
BERT and Unframed BERT
For Count, enter the maximum bit error count allowed before
declaring a fail verdict: 0 (default) to 999999.
For Rate, enter the maximum bit error rate allowed before declaring a
fail verdict: 1.0E-14 to 1.9E-01. The default value is 1.0E-12 for framed;
2.1E-5 for CLR4 unframed; 5.0E-5 for SR4, CWDM4, AOC, and Other
unframed.
Service Disruption
The Service Disruption Time (SDT) corresponds to the duration associated
to a defect that occurred in the network. For example a disruption that
occurs during a network switching from the active channels to the backup
channels or vice versa.
Note: The service disruption measurements are cleared when changing the
criteria. Service Disruption is not available for Multi-Pattern.
Defect allows choosing on which layer and defect the service
disruption time test will be performed. Choices depend on the
selected test path.
Layer Defect
Interface OTN/SONET/SDH: LOS
a
DSn: LOS, BPV, EXZ
PDH: LOS, CV
Section/RS LOF-S/RS-LOF, B1
Line/MS AIS-L/MS-AIS, RDI-L/MS-RDI, REI-L/MS-REI, B2
STS/AU Path AIS-P/AU-AIS, LOP-P/AU-LOP, RDI-P/HP-RDI, REI-P/HP-REI, B3, UNEQ-P/HP-UNEQ,
PDI-P (SONET)
VT/TU Path AIS-V/TU-AIS, LOP-V/TU-LOP, UNEQ-V/LP-UNEQ, RDI-V/LP-RDI, REI-V/LP-REI, BIP-2
DS1 AIS, OOF, RAI, Framing Bit, CRC-6
DS3 AIS, OOF, Idle, RDI, F-Bit, C-Bit, P-Bit, FEBE
E1 AIS, CRC-4, E-Bit, LOMF, TS16 AIS, LOF, FAS, RAI, RAI MF
E4, E3, E2 AIS, LOF, FAS, RAI
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