【 Power and analogue signals to the magnet controller.
The Two way diagnostic connector can be used to drive a volt meter to show the current flowing through the magnet coils. The O/P is 1V per Amp through the coils. It is fed by a 28V feed at up to 10A from the PDU. This also carries an AC signal which allows the magnet controller to synchronise its measurements to the mains frequency in order to improve the field settling accuracy.】