DPS-520 redundant power supply (RPS) is designed to conform to the wattage requirements of D-Link’s Gigabit switches and allows to connect up to four devices with standard Category 5e or higher Ethernet cables (up to 100 m connection distance). This is external RPS enclosed in solid metal case with a socket for connecting the AC power source, 10/100/1000Base-T management port, and four 10/100/1000Base-T ports for connecting the PoH-capable input port on the switch (usually the MGMT port). DPS-520 provides a cost-effective, simple solution to the problem of an inadvertent failure of the internal power-supply of the Ethernet switch, which can result in the shutdown of that switching device, the devices attached to its ports, or an entire network. Supporting full output power for the switch, this redundant power supply can maximize the power availability of the switching device.

 

DPS-520 is equipped with an integrated detection circuit that continuously monitors the switching device’s internal power supply. In the event of a power interruption, the redundant power supply is immediately triggered so that the LAN switch and its connected devices can continue providing service. This results in a more reliable network infrastructure and protects the network from a single failure of a network device power supply.

 

Deployment of DPS-520 does not necessitate any change in configuration of the LAN switch. DPS-520 is equipped with a universal internal power supply, and can be connected to any AC main power source from 90 VAC to 264 VAC, 47 Hz to 63 Hz through a standard AC power cable. DPS-520 can be installed as a stand-alone power supply unit or mounted in the DPS-800 19-inch two-slot chassis.

 

The Web User Interface (Web UI) provides access to the software features available on the RPS (including the configuration of failover policies with RPS port priority). These features can be accessed on the LAN ports or the MGMT port using any standard web browser.