Figure 20. Installing the Ferrite Bead for DC Power and Return Cables
a. Ferrite Bead
b. DC Power and Return Cables
3. Leave approximately 4 to 5 inches of the DC power and return cables end protruding from the ferrite.
4. Snap the ferrite bead shut.
Securing Power Cables
1. Bend the system power cables, as shown in the following illustration, and attach to the cable clasp.
Figure 21. Securing Power Cables
2. Plug the other end of the power cables into a grounded electrical outlet or a separate power source such as an uninterruptible power
supply (UPS) or a power distribution unit (PDU).
NOTE:
For better performance, ensure that the system is connected to a stand-alone power source with stable power
supply.
Replacing an AC or DC Power Supply
To replace an AC or DC power supply, follow these steps:
NOTE:
Although the switch can run on one PSU, Dell EMC highly recommends using two PSUs for full redundancy. If
the switch needs to run with only one PSU for a time, be sure to cover the second PSU slot opening with a blank plate to
avoid overheating.
28 Installation
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