This single rackspace unit provides 12V regulated DC for powering up to six Fibox input or output modules.  Power input accepted from either 110/220VAC line (for fixed installation) or 12VDC (for remote broadcast vans or field recording).  Using a deep-cycle marine battery, average battery life is 12-14 hours when powering up to six Fibox modules.  Recommended for installations requiring continuous, 24-hour per day operation.