EXFO FTB-8510B Guia Del Usuario página 892

SONET Tabs
APS/Advanced Line OH TX/RX (SONET)
Files Setup
Press the File Setup button to select the file that will be used to save
the captured K1/K2 byte transitions. Selecting a new file name will
create an empty file on disk that will be used to capture the K1/K2 byte
transitions. Selecting an existing file name will overwrite the existing
file.
Transitions
Allows to select the number of K1/K2 byte transitions that will be
captured. Once the number of K1/K2 byte transitions is reached, the
capture stops (the Capture button LED turns off).
Capture
Press the Capture button to enable the K1/K2 capture process.
However the capture will only start when the test is started. The
Capture button is only available when a file has been selected (see
File Setup button).
If the capture is restarted, the content of the file will be appended.
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FTB-8100 Series Transport Blazer