HP E1418A - Manual (Page 36)

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
µ
S. Typical
connections to the external trigger is shown in Figure 1-16.
Options A3E and A3H
Terminals
The external trigger line is located on the upper connector and is labeled
EXT TRIGn in the diagram on page 30.
Figure 1-16. External Trigger Connections
Chapter 1 Module Setup and Installation 35
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