Communications Inspector

UUID: B61E6B65-10F8-40FB-97E5-75F7F5AA2B44

The Communications Inspector is an optional support tool for observing the host-device USB CDC boundary independently of the normal operator application. It may produce verification evidence, but it is not an alternate requirements authority, a measurement-processing path, or the normal user interface.

Inputs: an approved interface contract, an available host-device connection, an observation duration, and the requirement/configuration identifiers under test.

Required observations:

  • whether accepted frames are complete and preserve 3648 effective samples;

  • frame identity and observed continuity;

  • status information exposed by the approved contract;

  • accepted-frame count and observation duration; and

  • observed control outcomes/status when a separately approved test exercises start, stop, or integration-time requests.

Calculation:

\[R_{accepted} = \frac{N_{accepted}}{T_{observation}}\]

where N_accepted is the number of complete frames accepted under the approved contract and T_observation is the observation duration in seconds. The subsystem minimum of at least 10 complete frames per second at minimum integration time is distinct from the above-100-frames-per-second system design target and from any host display-update rate.

Evidence outputs: record the requirement ID, hardware/configuration revision, observation start and duration, accepted-frame count, rejected or incomplete observations, identity/status observations, calculated accepted frame rate, and evidence-artifact reference. Detailed disposition and retention rules belong to Test and Verification.

Operational constraints: Whether the operator application and Communications Inspector may access the port concurrently, which component owns the connection, and how access is arbitrated are Not In Docs. Inspector command-line options, log format, concurrency behavior, recovery, timeout, naming, and retention details are also Not In Docs and shall not be inferred from a tool implementation.

Traceability: 7205FDB2; alignment state Not Started.