The 3300 Power Supply is available in both ac (3300/12) and dc (3300/14) versions for compatibility with voltage sources worldwide, and features line noise filters as standard. It resides in the left-most rack position and provides regulated power to all installed monitors and their connected transducers. The transducer supply voltage for the entire rack can be programmed within the power supply for compatibility with today’s –24V proximity transducer systems as well as older systems utilizing –18V power