Models 2500 and 2502 User’s Manual Triggering 10-13
Figure 10-7
Operation model for triggering example
A) Turning the Model 2500 OUTPUT ON places it at point A in the flowchart, where it
waits for an external trigger.
B) Pressing STEP takes the Model 7001/2 out of the idle state and places operation at
point B in the flowchart.
C) For the first pass through the model, the scanner does not wait at point B. Instead, it
closes the first channel (point C).
D) After the relay settles, the Model 7001/2 outputs a trigger pulse. Since the instrument is
programmed to scan 10 channels, operation loops back to point B, where it waits for an
input trigger.
E) and F) With the Model 2500 operation at point A, the output trigger pulse from the
Model 7001/2 triggers a measurement of DUT #1 (point E). After the measurement is
complete, the Model 2500 outputs a trigger pulse and then loops back to point A where it
waits for another input trigger.
Idle
Bypass
Wait for
Trigger Link
Trigger
Scan
Channel
Output
Trigger
Trigger
No
Scanned
10
Channels
?
Yes
7001 or 7002
Press STEP to start scan
B
C
D
Idle
Wait for
Trigger Link
Trigger
Make
Measurement
Output
Trigger
Trigger
No
Made
10
Measurements
?
Yes
Model 2500
A
E
F
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