1. Press the Measurements main menu key to activate the Measurements menu.
2. Press the BERT submenu key to activate the BERT menu.
3. Press the Table submenu key to display the measurements in table format, or press Histogram or Event List.
4. From the BERT menu, press the Back submenu key. Then from the Measurements menu, press the Measure Time submenu key and use the Up/Down arrow keys, rotary knob, or key pad to enter the duration of the measurement. Then press Enter.
5. Press the Start/Stop main menu key to start and stop the measurement.
Note
The measurement time is set in the Measure Time menu (1 min, 3 min, 5 min, 15 min, 30 min, 1 hour, 2 hours, 3 hours, 1 day, 2 days, 3 days, or Manual). Manual runs indefinitely and allows the user to terminate the measurement at any time.
Submenu keys for the BERT menu are described in BERT Menu.
Quick Check
1. Press the Measurements main menu key to activate the Measurements menu.
2. Press the BERT submenu key to activate the BERT menu.
3. Press the Table submenu key to display the measurements in the table format.
4. Press the Start/Stop main menu key to activate the measurements. To stop the measurements, press the Start/Stop key again.
5. If the results are within specifications, then RESULTS OK is displayed in a green box at the center of the screen. If any errors occur, then the errors/measurement results are displayed in the table..
Note
The RESULTS OK message can be cleared by pressing Esc.
Histogram Display
1. Press the Measurements main menu key to activate the Measurements menu.
2. Press the BERT submenu key to activate the BERT menu.
3. Press the Histogram submenu key to display the data in histogram format.
4. Press the Histogram submenu key again to configure the histogram parameters, which are Zoom, Window Size, and Time Units.
5. Press the Start/Stop main menu key to activate the measurement.
To Insert Errors/Alarms
1. Press the Error/Alarm main menu key to activate the Error/Alarm menu.
2. Press the Error Off/On submenu key to toggle the selected error type ON. Confirm that On is underlined. (Press the Error Off/On submenu key to turn OFF the errors.)
Event List
The BERT measurement Event List updates errors, signal loss, frame loss, and alarms (AIS ON, AIS OFF, RAI ON, and RAI OFF) every second. The data is displayed as a log list. The display will list up to 1000 errored seconds.