Trigger or EVENT circuits

This article contains PDF files with circuit diagrams to create EVENT input circuits to DTS DAS. The circuit descriptions and component part numbers are detailed in the attached files.

Event - 5V Hi-Lo
To convert a falling edge logic level to trigger TDAS, TDAS G5, or SLICE DAS. The components are chosen to eliminate time delays that can occur when using opto-couplers. This circuit converts the voltage input to a contact closure. The 5V level must be active high to allow the DAS to 'arm'. 

Event - Normally Closed to Normally Open Converter

TDAS, TDAS G5 and Slice PRO DAS nominally need a closed circuit trigger input in order to trigger externally. This circuit allows the user to connect an input which goes open circuit not closed circuit on a valid trigger. It is especially useful for blast test applications.