DGS-3130 Series Layer 3 Stackable Managed Switch Hardware Installation Guide
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Figure 3-8 Circle around the power cord
5. Fasten the tie of the retainer until the power cord is secured.
Figure 3-9 Secure the power cord
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.
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