ASA 312 Network Information Computer Calibration Manual
DS3 Calibration
3-5
Figure 3-2. DS3 Monitor 90 mV Peak Adjustment Setup
90 mV Peak Adjustment
To adjust the DS3 signal to 90 mV peak
1. Adjust the attenuator so that the ASA 312’s output is approximately equal to
90 mV peak on the oscilloscope.
2. Using the oscilloscope, measure and record the positive and negative peak
values.
3. From the ASA 312 Touch Screen:
– Press the
Settings
Function Group button.
– Press the
CAL
button.
4. Press the
DS3 Pos Peak
command, and use the Touch Screen keypad to enter
the measured DS3 positive peak adjustment value.
Press
Enter
to accept the new value.
5. Press the
DS3 Neg Peak
command, and use the Touch Screen keypad to enter
the measured DS3 negative peak adjustment value.
Press
Enter
to accept the new value.
This concludes DS3 Monitor calibration.
After performing this calibration, you can save the new values using the
procedures described later in Chapter 6, Saving Calibration Values and
Passwords, or you can proceed to the next calibration section.
Oscilloscope
ASA 312
Attenuator
