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Connecting an
An external trigger input is provided on the terminal module. Use the
external trigger to externally synchronize multiple outputs or multiple
External Trigger
instruments. The External Trigger uses TTL levels. The trigger occurs
Source
when the EXT TRIGn connection is pulled low for at least 1 µS. Typical
connections to the external trigger is shown in Figure 1-16.
Figure 1-16. External Trigger Connections
Options A3E and A3H
The external trigger line is located on the upper connector and is labeled
Terminals
EXT TRIGn in the diagram on page 30.
Chapter 1
Module Setup and Installation
35
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