2-10
AlphaServer 8200/8400 Operations Manual
2.5 System Components
2.5.1 Processor System Unit
The processor system unit (PSU) contains the 5-slot TLSB card cage and blower,
a storage drawer housing integrated I/O devices, an optional floppy drive, a
cabinet control logic (CCL) panel, and the control panel.
Figure 2-5 Processor System Unit
BX-0606-94
Front
Enable
Run
Fault
On/Off
Secure
Restart
TM
2.88
Console
External
Enable (XMI/FBUS)
PowerComm 3
PowerComm 2
PowerComm 1
External
UPS Power
External
Power Enable
Expander