Installing The Redundant Power Supply (Rps) - D-Link DGS-1520-28MP Quick Installation Manual

Installing the Redundant Power Supply (RPS)

The Redundant Power Supply (RPS) is designed to conform to the wattage requirements
of D-Link's Ethernet and Gigabit switches. It is an external RPS unit enclosed in solid
metal case with sockets to connect AC or DC power sources on one end, and to connect
to a switch's internal power supply on the other end. The RPS provides a low-cost, simple
solution to the problem of an inadvertent failure of the internal power supply of an Ethernet
switch, which can result in the shutdown of that switch, the devices attached to its ports, or
an entire network.
CAUTION: Do not connect the RPS to AC power before the DC power cable is
connected. This might damage the internal power supply.
CAUTION: Leave at least 15 cm (6 inches) of space at the rear of the switch when
an RPS is installed to prevent cable damage.
DPS-700 Redundant Power Supply
The DPS-700 is connected to the Master Switch using a 22-pin DC power cable. A
standard, three-pronged AC power cable connects the redundant power supply to the main
power source.
Figure 13 — Rear view of the DPS-700 connected to the swicth
CAUTION: Do not connect the DPS-700 to the switch by using the 14-pin DC power
cable. It may cause damage when using the wrong DC power cable. ONLY use the
22-pin DC power cable.
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