Tektronix NetTek YBT1E1, Руководство пользователя

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The Measurement Results Windows
2- 18
NetTek YBT1E1 T1 & E1 Circuit Tester User Manual
The Errors Window
To open the Errors window, tap the Errors tab on the left side of the
display. Figure 2--9 shows an example Errors window for the Option
E1 application.
Error
Insertion
Figure 2- 9: Errors window
Errors Rolling Display
The Errors Rolling Display operates the same as the Alarms Rolling
Display; see page 2--20 for a description of the Rolling Display
elements. The Errors Rolling Display also provides BER error rate
measurement and error insertion functions, which are described in
the following text.
BER Error Rate. The BER: indicator (bit error rate indicator) displays
the cumulative bit error rate since the last time you began a test or
selected the Restart button. The reported BER is calculated for the
total number of bits received for a synchronized pattern session.