Key Digital 8400 Three-Phase Expansion Components, Single-Phase to Three-Phase Power Upgrade

AlphaServer 8400

Step 11a Three-Phase Expansion Components

For new system orders, or for systems shipped after June 1996:

Select additional H7263-AC/ADfor systems that do not require battery back-up option

-If EPU value of 1st regulator is exceeded

-If N+1 redundancy is required

-If 2nd or 3rd power regulator is required

Select H7237-CA/CBfor systems that require battery back-up option (Factory Installed)

-Includes battery plug-in-unit, one H7263-AA/AB power regulator and batteries for battery backup/UPS capability. Must be ordered at time of system purchase if BBU functionality is required. The H7263-AA/AB mounts alongside the standard H7263-AC/AD.

Select H7238-BA/BBfor additional battery UPS (Factory Installed)

- Includes H7263-AA/AB and H7238-AA 4-pack battery option for second and third regulator support

For systems shipped prior to June 1996, select the following power options

H7263-AA/AB*	Three-Phase 48 VDC power regulator with BBU capability—maximum three per cabinet. Second
	regulator may be required to supply adequate power depending on configuration. Third regulator
	assures N+1 power redundancy and higher availability in the event of power regulator failure. See
	Power Configuration Table.
H7237-AA*	Battery plug-in unit with batteries for battery backup/UPS capability—maximum one per cabinet.
	Use in system cabinet and/or H9F00-BA/BB/BC expansion cabinet. Includes four batteries to support
	48 V power regulator and cabling for additional H7238-AA battery options.
H7238-AA*	4-pack battery option—one required per optional 48 V power regulator to support battery
	backup/UPS capability. For use only with the H7237-AA.
* Will ship as spare from Manufacturing
Battery backup I/O expansion cabinet
H9B00-AF	Battery option for I/O Expansion Cabinet—fully loaded battery cabinet supports three power
	regulators, provides for 60 minutes uninterruptible power (UPS). Maximum one per H9F00-
	BA/BB/BC expansion cabinet.

Step 11b Single-Phase to Three-Phase Power Upgrade

Includes new AC distribution box with attached line cord, DC subrack, one three-phase 48VDC power regulator.

If single phase power system has two power regulators, an additional three-phase 48VDC power regulator is required.

H7268-AA/ABSingle-Phase to Three-Phase Upgrade Kit, Converts system to three-phase power subsystem. -AA= 60 Hz, 208V, -AB = 50 Hz, 380/416V

Step 11c Power Option for StorageWorks Shelves in StorageWorks Plug-in-Units

Provides N+1 power for BA660-AB, BA661-AA StorageWorks PIUs/shelves.

Occupies one slot in StorageWorks shelf.

BA35X-HG	48V DC 150W Redundant Power Supply for BA660-AB, BA661-AA—includes 48VDC jumper
	cable for connecting to first power supply in StorageWorks shelf.

3.222 Alpha Servers