This RPS is equipped with an integrated detection circuit that continuously monitors the switching devices internal power supply. In the event of a power interruption, the redundant power supply is immediately triggered so that the LAN switch & its connected devices can continue providing service. This results in a more reliable network infrastructure & protects the network from a single failure of a network device power supply. It is suitable for DGS-3427, DGS-3450, DGS-3300 Series, DXS-3300 Series, DGS-3600 Series, DGS-3048, DGS-3100-48.