Dell Force10 C300 C300 Hardware Installation Guide - Page 27

Installing AC Power Supplies

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7 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. Installing AC Power Supplies | 27

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Installing AC Power Supplies
|
27
7
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.