The generic name of the system used to control and monitor the high voltages used to power each of the 41 PMTs in the TOFp Tray. STAR-specific map information is on the HVSys maps page ( Run 2, Run 3, before 1/30/03, Run 3, after 1/30/03) and the operating information is on the HVSys User's Manual. The HVSys consists of the HVSys System Module, the HVSys Bus cable, and 41 HVSys Cells daisy-chained on the Bus cable inside the TOFp Tray.