The High-Voltage Supply Model HVS-2 is a compact single-width NIM module, designed for radiation detectors with a highly regulated and low-noise high-voltage. It is available in two versions for a maximum voltage of 3 kV or 6 kV, resp.. The maximum output current of the 3 kV unit is 2 mA, that of the 6 kV unit is 1 mA. The HVS-2 is short circuit and overload protected. An internal board switch allows to limit the rising and the decreasing rate to approx. 100V/s in order to protect the input FETs of the connected amplifiers.The HVS-2 produces no voltage exceeding the maximum voltage, whatever disturbance of supply voltage may appear. In case of a failure, the HV is confined to the set voltage value. This is indicated by flashing of the yellow front panel LED and by a tone. Both warning signals are also given in case of a failure of the supply voltages from the NIM bin. The HV output can be continuously varied in its full range using the front panel ten turn potentiometer. A rear panel trim potentiometer, however, allows to decrease the maximally adjustable voltage from 3 kV or 6 kV to arbitrary lower values. Optionally, the HV can be set by a control voltage via a rear panel BNC connector. The polarity is selected using an internal switch. It is indicated by two LEDs on the front panel. Optionally the device can also be equipped with a rear panel BNC input for external HV shutdown.