Connecting an
External Trigger
Source
An external trigger input is provided on the terminal module. Use the external trigger to externally synchronize multiple outputs or multiple instruments. The External Trigger uses TTL levels. The trigger occurs when the EXT TRIGn connection is pulled low for at least 1 μS. Typical connections to the external trigger is shown in Figure
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 |
