Triggering on Waveforms
3–116
TDS 500D, TDS 600B, & TDS 700D User Manual
To select the standard and bit rate of the communication signal that triggering
will occur on:
1. Press TRIGGER MENU ➞ Type (main) ➞ Comm (pop-up) ➞ Stan-
dard (main).
2. Select an standard from the side menu. Only standards for the selected Code
are displayed. See Table 3–9 on page 3–113 for a list of the available
standards and their bit rates.
To select the Pulse Form of the communication signal that triggering will occur
on:
1. Press the TRIGGER MENU ➞ Type (main) ➞ Comm (pop-up) ➞ Pulse
Form (main).
2. Select an Pulse Form from the side menu. Only pulse forms for the selected
Code are displayed. See Table 3–10 for a list of pulse forms.
Table 3–10: Communications pulse forms
AMI CMI NRZ
Isolated +1 Plus One Eye Diagram
Isolated –1 Minus One Rise
Eye Diagram Zero Fall
Eye Diagram Pattern 0-7
Press the TRIGGER MENU ➞ Type (main) ➞ Comm (pop-up) ➞ Level or
Threshold (main) ➞ High, Low, Level, Set to TTL, Set to ECL, or Set to
50% (side).Only selections for the selected Code are displayed.
High lets you enter the high threshold using the general purpose knob or the
keypad.
Low lets you enter the low threshold using the general purpose knob or the
keypad.
To Select a
Communications
Standard
To Select a Pulse Form
To Set Level or Threshold
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