Data And Power Flow: Scsi Attached Disk Drives - Models 380, 390, 39H - IBM 7012 300 Series Installation And Service Manual

Data and Power Flow: SCSI Attached Disk Drives – Models 380, 390,
39H
Note: If external devices or cables are not connected to the external SCSI-2 connector, the
Media
Drive
Ethernet
Riser
Card
External
SCSI-2
Rear of
System Unit
Four I/O
Slots
CPU Card
Parallel Port
Tablet (T)
Keyboard (K)
Mouse (M)
1-12
Installation and Service Guide
external SCSI-2 connector does not require a terminator.
Media
Disk
Drive
Drive
Internal SCSI Cable
Serial Port
Extender
Cable
Rear
Fan
Memory
Cards
Voltage Regulator
Card on Model 39H
Disk
Optional
Drive
Disk
Drive
Fan
Power
Supply
Key Mode
Switch
Battery
Memory/CPU for
Model 39H
Front
Fan
Diskette
3-Digit
Display
Reset
Button