Olivetti GO477 Multi Function Board

Product Usage Instructions
Switch Positions:
Switch 1 on the board has different positions with corresponding functions:
- Position ON: Disables the board’s Floppy Disk Controller
- Position OFF: Enables the board Floppy Disk Controller (normal)
Switch 2:
- ON: Disables the system hard disk
- OFF: Enables the system hard disk (normal)
Switch 3:
- ON: Disables the serial port
- OFF: Enables the serial port (normal)
Switch 4:
- ON: Sets the Serial port address to COM2
- OFF: Sets the Serial port address to COM1 (normal)
Note: The serial port must be disabled in the presence of a multiport board configured for MS-DOS operations.
FUNCTION
Multi-function board GO477
- Hard Disk Interface
- Floppy Disk Controller
- Serial port

| Switch | Position | Function |
| 1 | ON OFF | Disables the board Floppy Disk Controller Enables the board Floppy Disk Controller (normal) |
| 2 | ON OFF | Disables the system’s hard disk. Enables the system’s hard disk (normal) |
| 3 | ON OFF | Disables the serial port. Enables the serial port (normal) |
| 4 | ON
OFF |
Serial port address COM2
Serial port address COM1 (normal) |
NOTE: The serial port must be disabled in the presence of a multiport board configured for MS-DOS operations.
FAQs
- Q: Can I use this board with a multiport board for MS-DOS operations?
- A: Yes, but make sure to disable the serial port using Switch 3 when using a multiport board for MS-DOS operations.
Documents / Resources
![]() | GO477 Multi Function Board |
References
- User Manualmanual.tools
Published: April 17, 2025

