TM 5-3895-374-24-1Troubleshooting Your InputThe following will assist you In troubleshooting your Input modulesModulesInput Circuit OperationAn input circuit responds to an input signal In the following manner1.An input filter removes false signals due to contact bounce or electrical interference2.Opto-electrical Isolation protects the input circuit and backplane circuits by Isolating logiccircuits from input signals3. Logic circuits process the signal4. An input LED turns on or off Indicating the status of the corresponding input deviceChapter 9Troubleshooting(page 3-459)
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