RS-232 UPGRADE BOARD IO card Settings and Configuration

TANDY/RADIO SHACK

RS-232 UPGRADE BOARD

Card Type
Serial card
Chip Set
Unidentified
Maximum Onboard Memory
Unidentified
I/O Options
Serial port
Hard Drives supported
None
Floppy drives supported
None
Data Bus
SBus
Card Size
Half-length, full-height card

CONNECTIONS
Function
Label
Function
Label
DB-25 serial port
CN1
Sbus interface
CN2

BASE I/O ADDRESS AND INTERRUPT SELECTION
Address
IRQ
SW1/1
SW1/2
SW1/3
SW1/4
COM1 (3F8h)
4
Off
Off
Off
On
COM2 (2F8h)
3
Off
On
Off
On
COM3 (3E8h)
4
On
Off
Off
On
COM3 (3E8h)
2
On
Off
On
On
COM4 (2F8h)
3
On
On
Off
On
COM4 (2F8h)
5
On
On
On
On

Headaches Begone! A Systemic Approach To Healing Your Headaches

Don't Let Your Bike Seat Ruin Your Sex Life Book

RS-232 UPGRADE BOARD IO card Settings and Configuration

Search

My Books

Discover

Card Type	Serial card
Chip Set	Unidentified
Maximum Onboard Memory	Unidentified
I/O Options	Serial port
Hard Drives supported	None
Floppy drives supported	None
Data Bus	SBus
Card Size	Half-length, full-height card

CONNECTIONS
Function	Label	Function	Label
DB-25 serial port	CN1	Sbus interface	CN2

BASE I/O ADDRESS AND INTERRUPT SELECTION
Address	IRQ	SW1/1	SW1/2	SW1/3	SW1/4
COM1 (3F8h)	4	Off	Off	Off	On
COM2 (2F8h)	3	Off	On	Off	On
COM3 (3E8h)	4	On	Off	Off	On
COM3 (3E8h)	2	On	Off	On	On
COM4 (2F8h)	3	On	On	Off	On
COM4 (2F8h)	5	On	On	On	On