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DRAFT: This document is still being modified by the author. Any information here is subject to change.

Calibrating a Fixture and DIB allows the system to identify the specific frequency and power offsets based on a serial number chip installed on the interfaces. Mirroring the split between high utilization and high wear items, the Fixture is calibrated separately from the DIB.

The system identifies the Fixture and DIB based on a named association with a serial id. The serial number chips are read from a single line, so need to be identified separately. Do not add a new DIB and Fixture to the system at the same time.

Once the Fixture is identified and the Device Interface definition complete, OSL DIB boards are loaded on top of the Fixture to create unique calibration data for that Fixture. Fixtures do NOT need to be calibrated UNLESS the components are changed or moved.

Once the Fixture is calibrated, each DIB can be serialized and named by the DIB definition.

Two fundamental approaches, One to Many and Many to One.

Fixture Calibration

Create "Fixture_Name Calibration" testplan to measure the OSL for all used connections to the DIB. OSL DIBs need to be created to characterize the Fixture up to the DIB. Subsequent lessons will focus on low frequency and DC cals, high frequency cals, and modulated cals.

DIB Calibration

Create a "DIB Calibration" testplan to measure OSL at the socket. Usually special "OSL DUT"s are created to characterize the DIB up to the socket.

These calibrations are valid across systems, so that you can use any DIB on any Fixture and have accurate measurements.

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