Key Digital 8400 - Manual (Page 23)

AlphaServer 8400
3.228 Alpha Servers
System Diagram
Note: Three-Phase Power Systems support up to three Power Regulators.
High-speed
System
Interconnect
Bus
1-14 CPUs
Memory
I/O Port 48-Volt
Power
Regu-
lator
Cooling Assembly
Space for
Additional
Power
Regulators
Space for
one or two
BA655 or
BA660 PIUs
Cooling Assembly
BU-3310A
Expansion Bay for:
XMI I/O Channel
PCI I/O Channel
BA655 PIU
BA660 PIU
Batteries for UPS
Expansion Bay for:
XMI I/O Channel
PCI I/O Channel
BA655 PIU
BA660 PIU
Batteries for UPS
Expansion Bay for:
XMI I/O Channel
PCI I/O Channel
BA655 PIU
BA660 PIU
Batteries for UPS
System Cabinet I/O Expansion Cabinet
CD-ROM
Operator
Control
Panel
48-Volt
Power
Regu-
lator
Space for
Additional
Power
Regulators
Expansion Bay for:
PCI I/O Channel
BA655 PIU
BA660 PIU
One BA660 Storage-
Works PIU included
BU-3482
Battery Plug-in Unit
(occupies two bays) XMI Plug-in Unit
(occupies two bays)
StorageWorks Plug-in Units
(each occupies one bay)
Two
Expansion
Bays
Two
Expansion
Bays
48-V
Pwr.
Reg.
Space
for
Additional
Power
Regulators
Cooling Assembly
5.25-in.
Devices
3.5-in.
Devices
PCI Plug-in Unit
PCI Plug-in Unit