Input and Output Requirements
Normally Closed Input Connection:
Normally Closed Input has two states:
•
Switch Closed - Normal State:
Loop resistance = 0 (short circuit).
•
Switch Open – Abnormal State:
Loop resistance = Infinite (open circuit).
Figure 9: Normally Closed Input Connection
AC-225 Hardware Installation and User Guide
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Summary of Contents for AC-225 PCBA
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