NEC Express5800/320Fc Site Planning Manual

Also see for Active Upgrade Express5800/320Fc: User guide Read me first Read me first Datasheet

NEC Express5800/320Fc Site Planning Manual Manual pdf 24 page image

Electrical (AC) Power Planning 4-1Chapter 4Electrical (AC) Power Planning4-For information about planning appropriate AC electrical power for yourExpress5800/320Fc system, see:• “Redundant Power Sources” on page 4-1• “AC Power Service Requirements” on page 4-2• “Power Outlet Requirements” on page 4-4• “Connecting a System Directly to Two Separate Power Sources” on page 4-5• “NEC-Supplied Power Cords” on page 4-6Related Topics• Chapter 5, “UPS Planning”Redundant Power SourcesExpress5800/320Fc systems require at least two separate and independent ACpower sources–an A-side power source and a B-side power source–that providepower to the system’s power receptacles, labeled, respectively, A and B. Either sourcemust be capable of continuing to provide power if power to the other source is lost.The A-side power source provides power to components that do not require twosources of power: a KVM switch. If you use an uninterruptible power supply (UPS), theUPS is the A-side power source.The B-side power source provides power to the other side of each system.The wattage required from the A-side power source will always be equal to or greaterthan the wattage required from the B-side power source.