HwMuseum | Index

WYSE TECHNOLOGY, INC.

WY-994

Data bus: 16-bit, PC/AT

Size: Half-length, full-height card

Hard drives supported: Two IDE Interface (AT) drives

Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB

CONNECTIONS

Function

Location

25-pins parallel port (LPT1/2) external

CN1

9-pin serial port 1 (COM1/3)-external

CN2

9-pin serial port 2 (COM2/4) internal

CN3

34-pin data cable connector-floppy drive

J1

40-pin IDE Interface (AT) control cable connector-hard drive

J5

4-pin connector-drive active LED

J6

USER CONFIGURABLE SETTINGS

Function

Location

Setting

»

Factory configured - do not alter

W1

open

»

Factory configured - do not alter

W2

open

»

Hard drive enabled

W3

pins 1 & 2 open

 

Hard drive disabled

W3

pins 1 & 2 closed

»

Factory configured - do not alter

W3

pins 3 & 4 open

»

Floppy drive interrupt request is IRQ6

W4

pins 1 & 2 open

 

Floppy drive interrupt request is disabled

W4

pins 1 & 2 closed

»

Floppy drive port address is 3F0-3F7h

W4

pins 3 & 4 closed

 

Floppy drive port address is 370-3F7h

W4

pins 3 & 4 open

PARALLEL PORT CONFIGURATION

LPT

W5/1 & 2

W5/3 & 4

W6/3 & 4

W6/1 & 2

»

LPT1 (378-37Fh) on IRQ7

open

closed

closed

open

 

LPT2 (278-27Fh) on IRQ5

open

open

open

closed

 

Disabled

closed

N/A

N/A

N/A

SERIAL PORT CONFIGURATION - W5

Port 1 (CN2)

Port 2 (CN3)

pins 5 & 6

pins 7 & 8

pins 9 & 10

pins 11 &12

COM1 3F8-3FFh

COM2 2F8-2FFh

open

closed

open

closed

COM1 3F8-3FFh

COM4 2E8-2EFh

open

open

closed

open

COM3 3E8-3EFh

COM2 2F8-2FFh

closed

open

open

closed

COM3 3E8-3EFh

COM4 2E8-2EFh

closed

open

closed

open

Disabled

Disabled

closed

closed

closed

closed

COM PORTS INTERRUPT REQUEST - W6

IRQ

pins 5 & 6

pins 7 & 8

pins 5 & 7

pins 6 & 8

»

COM1 or COM3 IRQ4

open

closed

open

open

 

COM1 or COM3 IRQ3

open

open

open

closed

»

COM2 or COM4 IRQ3

closed

open

open

open

 

COM2 or COM4 IRQ4

open

open

closed

open

 

Disabled

closed

closed

closed

closed