Wavetek ANT-20, Руководство по эксплуатации

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Broadband Analyzer/Generator ANT-20/ANT-20E
A-14 Application Guide
2.6 Inserting Errors: “ATM Test Control” VI
Opening the “Error Insertion” dialog window
✓
The “ATM Test Control” main window is open.
⇒
Click the above icon button of the toolbar.
– or –
⇒
Select the “Test - Error Insertion” menu command.
The “Test Error Insertion ATM Quality of Service” window opens.
The error criteria required for the measurement task can be inserted in each test channel
separately.
Fig. A-21 The “Test Error Insertion” dialog for ATM Quality of Service
a) Click on the tab index for the virtual channel required (e.g. Channel A ...).
The action buttons for the various error types are placed on top.
b) Insert an anomaly (e.g. “Severely Errored Cell Block) by clicking the “Insert” button (next to
“SECB”).
Each time the button is clicked, the anomaly will be inserted into the test cell stream.
c) Insert an alarm (e.g. “Virtual Path Remote Defect Indication”) by clicking the “OFF” button
(next to “VP-RDI”).
The alarm criterion is now set for the virtual channel and the button label changes from OFF
to ON (toggle function). Also, all alarms set for the channels are listed in the “Selected
alarms” box.
The alarm remains set until the test cell stream is switched off or the “ON” button is clicked
to turn the alarm OFF.
a
b c