The Bogen DC Power Supplies are designed to supply power to battery-operated and other low voltage DC equipment from a 120-volt AC source. They are rugged versatile and dependable and are suitable for many types of telephone paging equipment amplified speakers and horns tone generators and intercom systems. The PRS40C provides 12VDC for equipment requiring up to 300 milliamperes and is UL listed. The PRS48 provides 48VDC at 100 milliamperes as required for various telephone paging access devices. The PRS48 is UL Listed. Models PRS624DA and PRSASAC feature the capability of providing 24VDC @ 35 milliamperes Loop Current to the TIP and RING lines of a loop-start trunk or keysystem CO line.