LAD-600 series is a 600W economical AC/DC low profile security power supply with UPS function. Adopting the input range from 90Vac to 264Vac (115Vac/230Vac selectable by switch) and supports output 27.6V, 41.5V and 55.2Vdc. With high efficiency up to 91% and built-in AC, battery switch for easy maintenance. In addition, LAD-600 series not only provide TTL signais for AC OK, battery disconnect, battery reverse polarity (No damage), battery low détection, battery full and discharge, but also possess UART version so the users can monitor and control the status of the units, that enhance easy way for intégration into security and fire Systems directly.