Specifications

Installing AC Power Supplies | 27
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Installing AC Power Supplies
The C300 has eight power supply slots at the front-bottom of the chassis ( Figure 7-1 ). The slots accept
either AC Power Supply Units (PSUs) or DC Power Entry Modules (PEMs).
• Dell Force10 does not support the use of a combination of AC and DC power supplies.
• If you select AC, the C300 requires a minimum of two AC power supplies to operate, but Dell Force10
recommends a two-plus-one redundancy configuration, so a minimum of three power supplies is
recommended. Additional power supplies are required to enable Power over Ethernet (PoE). See Power
Over Ethernet (PoE).
• To protect against high-voltage shock, install a power supply blank (CC-C-BLNK-PWR) on all unused
power supply slots.
• Connect the C300 AC power supply to the appropriate branch circuit protection as defined by local
electrical codes.
• Verify that the remote power source complies with the system input power specifications in the section
System Specifications on page 62
WARNING: The C300 does not have a main disconnect device installed. It is the responsibility of the installer
to provide a suitable disconnecting device in the building installation and ensure that it is located/installed near
the equipment and is easily accessible.