EXFO PSO-200 Optical Modulation Analyzer - Manual (Page 44)

Performing Acquisitions
36 PSO-200
Activating Trigger-Based Acquisitions
Activating Trigger-Based Acquisitions
You could use an external equipment, such as a BER tester, to initiate burst
acquisitions on the PSO-200 based on trigger signals. This can be useful in
automated long-term tests.
When you start this acquisition process, the application will be on hold,
waiting for a trigger signal (which can occur hours later) to acquire new
bursts as specified. This process will stop if you press the Stop button or
when it reaches the specified number of trigs.
If the external trig signal occurs while the previous burst is still being
acquired, the PSO-200 will ignore this trig signal and wait for the next one.
Note: You must stop the trigger-based acquisition in order to change its settings.
Ready Ready Ready Ready Ready Ready
Trig
Burst
Analysis
Triggered acquisition (1 burst/trig)
Ready
Trig
Burst
Analysis
Triggered acquisition (6 bursts/trig)
Ready
Trig
Burst
Analysis
Triggered acquisition (6 bursts/trig, trigs too fast)
1 2 3 4 5 6 1 2 3