Wavetek ANT-20, Руководство по эксплуатации

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Broadband Analyzer/Generator ANT-20/ANT-20E
S-2 Specifications “ATM Layer”
1.4 General Functions
1.4.1 Error Insertion (Anomalies)
The following anomalies can be inserted in addition to the errors inserted in the physical layer.
These anomalies are not dependent on the active measurement type, they are referred to the
entire cell stream including fill cells.
1.4.2 Alarm Generation (Defects)
The following defects can be generated in addition to the physical layer alarms. These defects
can be generated independently of the active measurement type. They are referred to the entire
cell stream.
Error type,
anomaly Single Rate
1
Sensor threshold
M in N
HEC uncor.
2
yes 1E-2 to 1E-6 M=1 to 31
N = M+1 to M + 31
HEC cor.
3
yes 1E-2 to 1E-6 M =1 to 31
N = M +1 to M + 31
1 Mantissa = 1 (fixed), exponent = -2 to -6 (integer values)
2 Uncorrectable header error
3 Correctable header error
Table S-1 Settable anomalies
Defect Test sensor functions Single
On/Off
LCD
1
yes yes
1 LCD (Loss of Cell Delineation) is generated if uncorrectable header errors are found
in seven or more consecutive cells.
Table S-2 Settable defects