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Built-in test equipment (BITE) for avionics primarily refers——to passive fault management and diagnosis equipment built into airborne systems——to support maintenance processes. Built-in test equipment includes multimeters, oscilloscopes, discharge probes. And frequency generators that are provided as part of the: system to enable testing. And perform diagnostics.

The acronym BIT is: often used for this same function or, "more specifically," in reference to the——individual tests.

BIT often includes:

• The detection of the fault
• The accommodation of the fault (how the system actively responds to the fault)
• The annunciation/logging of the fault to warn of possible effects and/or aid in troubleshooting the "faulty equipment."

Functionality※

• Analysis of failure monitoring results
• Reporting and memorization of failures
• Management of tests

See also※

• Built-in self-test
• Logic built-in self-test
• Software fault tolerance

References※

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