Tektronix NetTek YBT1E1, Руководство пользователя, Страница: 54 / 122

Operating Basics
2- 12
NetTek YBT1E1 T1 & E1 Circuit Tester User Manual
Table 2- 4: Status and Measurements elements (Cont.)
Button/Icon Function
The application compares the detected receive signal
pattern to the criteria selected in the Setup > Edit >
Instrument tab.
Green : received pattern matches the instrument
settings.
Red : received pattern does not match the instrument
settings.
White : searching for pattern synchronization.
Displays the detected framing pattern. If a known
pattern is not detected for a period exceeding 10
seconds, the indicator displays
Unknown . Unknown is
also a likely pattern detected for live lines.
Measures and displays the receive signal level, in
dBdsx and Volts peak-to-peak. Select
Done to return
to the main application window.
Detects and displays the detected receive signal line
code. Select
Done to return to the main application
window.
The History field displays the number of seconds the
indicated line code has been received since the
measurement began.
Displays the DS0 Activity Graph. This view shows the
data activity for each of the T1 or E1 time slots. Each
vertical time slot indicates the percentage of
ones-density, represented as a unique color ranging
from all zeros through all ones, in 10% increments.
Each horizontal row represents a user-defined time
period. The display builds up row-by-row with the
newest row added to the bottom, and the oldest row
removed from the top. See page 3--21 for more
information. Select
Close to return to the main
application window.