High-speed Multifunction Boards
User Manual, Ver. 1.0, Jan 2020, PMH-032-10 Page 38
5
Calibration
5.1
Introduction
When shipped from the factory, the PCIe-LM4 Series board is already fully calibrated, including the
calibration coefficients that are stored in the onboard EEPROM. For a more precise application of
voltages in the field, the procedure described below provides a method that allows the board
installed in a specific system to be calibrated so that the correct voltages can be achieved for the
field connection. This calibration allows the effects of voltage drops caused by IR loss in the cable
and/or the connector to be eliminated.
At first the user has to prepare the equipment for calibration: the precise multi-meter. The
calibration procedure will be demonstrated below:
