Redundant Power Supply, 140 watts
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DPS-500DC redundant power supply (RPS) is designed to conform to the wattage requirements of D-Link’s Ethernet and Gigabit switches. This is external RPS enclosed in solid metal cases with sockets to AC or DC power sources on one end, and connectors to the switch’s internal power supply on the other end. DPS-500DC provides a low-cost, 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.
Redundant Power Backup
DPS-500DC 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.
Easy and Flexible Deployment
Deployment of a DPS-500DC does not necessitate any change in configuration of the LAN switch. The DPS-500DC provides the 
same output power as the DPS-500 but connects to a DC instead of an AC power source. 
DPS-500DC Redundant Power Supply
DPS-500DC can be installed as independent power supply unit, or placed inside a DPS-800 or DPS-900 chassis. The chasses are designed for mounting in a standard 19-inch equipment rack. Multiple power supplies can be placed inside a chassis, from which they can connect to the switches mounted in the same rack.


Füüsilised parameetrid
Output power
140 watts
Input voltage range
36 to 72VDC
Input frequency
47 to 63 Hz
Max input current
6A @ 36VAC
3A @ 72VAC
Max inrush current
20A @ 48VAC
50A @ 72VAC
Operating temperature
0 to 65°C
Storage temperature
-40 to 85°C
Operating humidity
10% to 90% non-condensing
Storage humidity
10% to 90% non-condensing
120,295 hours
196 x 195 x 50mm



DPS-500DC Redundant Power Supply, 140 watts




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