D-Link DPS-520 - PoE injector Redundant Power Supply For DGS-1520 - DPS-520 The DPS-520 provides power supply redundancy and resiliency for Power over Ethernet (PoE). It ensures continuous device activity and offers protection against device power supply failures by providing seamless failover for D-Link switches. High flexibility and availability The DPS-520 PoE redundant power supply system offers stable, reliable safety features and protection to you network. With a 180W power budget and four ports with PoE power budget, it can actively back up four compatible D-Link switches while using PD power connection box, reducing the redundant power cost per device. In the event of a power supply failure, the redundant power supply unit is immediately triggered, allowing the LAN switch and its connected devices to remain operational. Auto discovery Automatically detect PD (powered device) to deliver immediate power. RPS port priority Allows the network administrator to define RPS failover policy. Status reporting Monitor status and back up a failed switch via web browser. Plug-and-Play Simple installation without complex configurations allows convenient management for network administrators. Overcurrent protection Automatically provides short-circuit protection to prevent equipment damage caused by high currents. 90W PoE per port Offers a 90W power budget per port and a total of 180W for reliable backup power. Summary: AC 100-240 V - 180 Watt - Ethernet 10/100/1000 - for DGS 1520-28, 1520-28MP, 1520-52, 1520-52MP DPS-520 180 W Redundant Power Supply Cost-effective and supports up to x4 switches 180 W total power budget Automatically detects powered devices Allows the network administrator to define RPS failover policy Monitor status and backup a failed switch via web browser Flexible Deployment Any standard Category 5e or higher Ethernet cable can be used to connect the RPS to the switch, allowing the RPS to supply PoH power to the switch with up