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Additional Considerations
Advanced Trigger Mechanisms
5
5-5
LOW
HIGH
7.0V
2.0V
0.8V
–0.6V
0
VALID EXTERNAL
TRIGGERS
SCAN
TIME
SCAN
HIGH
≥
100 mS
FALLING
EDGE
HELD 5 µS
IGNORED
(SCAN IN
PROGRESS)
+–0123TR 01234567
Σ
9-16 V
DC PWR
!
+30V
ALARM OUTPUTS DIGITAL I/O
+–
0123TR
oo15f.eps
Figure 5-1. External Trigger Timing