User Manual

11-20 Triggering 2400 Series SourceMeter
®
User’s Manual
Output trigger specifications
The SourceMeter can be programmed to output a trigger after various trigger
model actions. (See “Trigger models,” page 11-20.) The output trigger provides a
TTL-compatible output pulse that can be used to trigger other instruments. The
specifications for this trigger pulse are shown in Figure 11-7.
Figure 11-7
Trigger link output pulse specifications
Pulse Mode triggering (Model 2430)
Triggering for the Model 2430 is similar to triggering for the DC Mode. However, in
order to accomplish fast pulse output, triggering is simplified for the Pulse Mode.
The following information covers the triggering differences between the DC Mode
and Pulse Mode.
Trigger models
The front panel trigger model for the Pulse Mode is shown in Figure 11-8, while
the trigger model for remote operation is shown in Figure 11-9. These trigger mod-
els are simplified versions of their DC Mode counterparts (Figure 11-1 and Figure
11-3).
NOTE The following trigger model information assumes that you are already
familiar with the basic DC Mode trigger model operation presented
earlier in this section.
Meter
Complete
TTL High (3.84V
typical when sink
current < 4mA)
TTL Low (0.33V
typical when current
source is < 4mA)