DPS-500A

Description
The DPS-200A, DPS-500A, and DPS-500DC are redundant power supplies (RPS) designed for use with D-Link switches. RPS are made in a rugged metal case with a connector for connecting them to an AC or DC power source (depending on the model) and a connector for connecting to the switch's internal power supply. A redundant power supply (RPS) is a low-cost device that provides uninterrupted power in the event of an unexpected failure of the switch's internal power supply, which can shut down the switch itself, devices connected to its ports, or the entire network. By providing the necessary output power to operate the switch, RPS can improve the power reliability of the device.

Power redundancy
Each D-Link RPS continuously monitors the status of its internal power supply. In the event of a power outage, the backup power source starts immediately, so the LAN switch and devices connected to it can continue to operate. This increases the fault tolerance of the network infrastructure and protects against interruption of the network connection due to a power failure of one of the network devices.

Easy and versatile installation
Installing a DPS series device does not require any changes to the settings of the LAN switch. With the exception of the DPS-500DC, each RPS is equipped with a universal internal power supply and can be connected to any AC power source from 90 to 264 Volts, 47 to 63 Hz using a standard power cable. The DPS-500DC is connected to a DC power source instead of AC power. 

Modular redundant power supplies
The DPS-200A, DPS-500A, and DPS-500DC are modular redundant power supplies that can be used as stand-alone units or installed in a DPS-800 chassis. The chassis can be mounted in a standard 19" rack. You can install multiple RPSs in a chassis, which can be connected to switches installed in the same rack.

Rack Chassis 
The DPS-800 chassis allows you to install up to two DPS-200A, DPS-500A, or DPS-500DC modules in an equipment rack. Using a chassis allows you to save space while keeping your cabling system looking neat. All chassis-mounted RPSs are connected directly to power supplies and can be hot-swapped.