Data and Power Flow: SCSI Attached Disk Drives ± Models 380, 390, 39H
Note: If external devices or cables are not connected to the external
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| Supply |
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Ethernet |
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Riser |
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Card |
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Front
Fan
External
SCSI-2
Rear of
System Unit
Four I/O
Slots
CPU Card
Parallel Port 
Tablet (T)
Keyboard (K)
Mouse (M)
Rear
Fan
Memory 
Cards
Voltage Regulator
Card on Model 39H
Diskette
Key Mode |
| Reset |
Switch |
| Button |
