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Edge Trigger Mode
When you are set up in a multi-card configuration, only the master
card input channels are recognized as the trigger source. The master
card is the card at the top of the module. The oscilloscope will not
edge trigger on inputs from the other cards in a multi-card setup.
This section discusses how edge triggering works in a single-card
module or in the master card in a multi-card configuration.
Edge triggering is the type of triggering found in all oscilloscopes. In
the edge trigger mode, the oscilloscope triggers at a specified voltage
level on a rising or falling edge of one of the input channels or the
external trigger input. In this mode you can specify which input is the
trigger source, set a trigger level voltage (except for Ext, which is set
to −1.3 V), and specify which edge to trigger on.
When you touch the Mode field, Edge can be selected from the
pop-up menu. Menu selections for the edge trigger mode are
discussed in the following paragraphs.
6-5
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