What is the Function of MAGNET MONITOR OUT on the HDe Cabinet Monitor Module.

What is the Function of MAGNET MONITOR OUT on the HDe Cabinet Monitor Module. What is the Function of the MAGNET MONITOR OUT connector on the HDe Cabinet Monitor Module? There is nothing in documentation that explains its function. The only information available is found in the Cabinet Monitor Hardware Design Specification document found in Direction 5144304, Signa HDe 1.5T Service Methods, Rev# 5, under Theory --> System Theory --> Cabinet Monitor Theory. It shows the connection and the pinout, but no explanation of what it is for. What is the Function of the MAGNET MONITOR OUT connector on the HDe Cabinet Monitor Module? There is nothing in documentation that explains its function. The only information available is found in the Cabinet Monitor Hardware Design Specification document found in Direction 5144304, Signa HDe 1.5T Service Methods, Rev# 5, under Theory --> System Theory --> Cabinet Monitor Theory. It shows the connection and the pinout, but no explanation of what it is for.