HwMuseum | Index

DTK COMPUTER, INC.

PTI-250DW, UN-1081VL

Card Type

Hard drive controller card

Hard Drives supported

Two IDE (AT) drives

Floppy drives supported

Two 360KB, 720KB, 1.2MB, or 1.44MB drives

Data Bus

32-bit VESA Local Bus

Card Size

Full-length, half-height card

CONNECTIONS

Function

Location

Function

Location

25-pin parallel port - external

CN8

16-pin game port

J4

4-pin connector - drive active LED

J1

Serial port 1

J5

40-pin primary IDE(AT) connector

J2

10-pin serial port 2

J6

34-pin cable connector - floppy drive

J3

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

IDE(AT) IRQ 14 select

W6

Pins 1 & 2 closed

 

IDE(AT) IRQ 15 select

W6

Pins 2 & 3 closed

»

Floppy drive address is 3F0h-3F7h

W7

Pins 2 & 3 closed

 

Floppy drive address is 370h-377h

W7

Pins 1 & 2 closed

»

IDE primary address is 1F0h-1F7h, 3F6h-3F7h

W8

Pins 2 & 3 closed

 

IDE secondary address is 170h-177h, 376h-377h

W8

Pins 1 & 2 closed

»

IDE(AT) interface enabled

W9

Pins 1 & 2 closed

 

IDE(AT) interface disabled

W9

Pins 2 & 3 closed

»

Floppy drive interface enabled

W10

Pins 1 & 2 closed

 

Floppy drive interface disabled

W10

Pins 2 & 3 closed

»

Game port enabled

W26

Closed

 

Game port disabled

W26

Open

PARALLEL PORT ADDRESS SELECTION

Setting

W15

W16

»

LPT1 (378h)

Pins 2 & 3 closed

Pins 1 & 2 closed

 

LPT2 (278h)

Pins 1 & 2 closed

Pins 2 & 3 closed

 

LPT3 (3BCh)

Pins 1 & 2 closed

Pins 1 & 2 closed

 

Disabled

Pins 2 & 3 closed

Pins 2 & 3 closed

SERIAL PORT 1 ADDRESS SELECTION

Setting

W11

W12

»

COM1 (3F8h)

Pins 1 & 2 closed

Pins 2 & 3 closed

 

COM3 (3E8h)

Pins 2 & 3 closed

Pins 1 & 2 closed

 

COM4 (2E8h)

Pins 1 & 2 closed

Pins 1 & 2 closed

 

Disabled

Pins 2 & 3 closed

Pins 2 & 3 closed

SERIAL PORT 2 ADDRESS SELECTION

Setting

W13

W14

»

COM2 (2F8h)

Pins 1 & 2 closed

Pins 2 & 3 closed

 

COM3 (3E8h)

Pins 1 & 2 closed

Pins 1 & 2 closed

 

COM4 (2E8h)

Pins 2 & 3 closed

Pins 1 & 2 closed

 

Disabled

Pins 2 & 3 closed

Pins 2 & 3 closed

SERIAL PORT 1 INTERRUPT SELECTION

IRQ

W18

W19

W20

 

IRQ3

Open

Closed

Open

»

IRQ4

Closed

Open

Open

 

IRQ5

Open

Open

Closed

SERIAL PORT 2 INTERRUPT SELECTION

IRQ

W21

W22

W23

»

IRQ3

Closed

Open

Open

 

IRQ4

Open

Closed

Open

 

IRQ5

Open

Open

Closed

PARALLEL PORT INTERRUPT SELECTION

IRQ

W24

W25

»

IRQ7

Closed

Open

 

IRQ5

Open

Closed

PARALLEL PORT MODE SELECTION

Mode

Label

Position

»

Parallel port is uni-directional

W17

Pins 1 & 2 closed

 

Parallel port is bi-directional

W17

Pins 2 & 3 closed

FOR 33 MHZ VL-BUS COMPUTER (ALSO DX/2 66)

MBytes/sec.

W1

W2

W3

W4

W5

8.3

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

7.4

1 & 2

2 & 3

2 & 3

1 & 2

1 & 2

6.7

2 & 3

1 & 2

1 & 2

1 & 2

1 & 2

6.1

2 & 3

1 & 2

2 & 3

1 & 2

1 & 2

5.6

2 & 3

2 & 3

1 & 2

1 & 2

1 & 2

5.1

2 & 3

2 & 3

2 & 3

1 & 2

1 & 2

4.8

1 &2

1 & 2

1 & 2

2 & 3

1 & 2

4.4

1 & 2

1 & 2

2 & 3

2 & 3

1 & 2

4.2

1 & 2

2 & 3

1 & 2

2 & 3

1 & 2

3.9

1 & 2

2 & 3

2 & 3

2 & 3

1 & 2

3.7

2 & 3

1 & 2

1 & 2

2 & 3

1 & 2

3.5

2 & 3

1 & 2

2 & 3

2 & 3

1 & 2

3.3

2 & 3

2 & 3

1 & 2

2 & 3

1 & 2

Note: Pins designated are in the closed position

FOR >33 MHZ VL-BUS COMPUTER

Mbytes/sec.

W1

W2

W3

W4

W5

7.2

1 & 2

1 & 2

1 & 2

1 & 2

2 & 3

6.3

1 & 2

2 & 3

2 & 3

1 & 2

2 & 3

5.6

2 & 3

1 & 2

1 & 2

1 & 2

2 & 3

5.0

2 & 3

1 & 2

2 & 3

1 & 2

2 & 3

4.5

2 & 3

2 & 3

1 & 2

1 & 2

2 & 3

4.2

2 & 3

2 & 3

2 & 3

1 & 2

2 & 3

3.8

1 & 2

1 & 2

1 & 2

2 & 3

2 & 3

3.6

1 & 2

1 & 2

2 & 3

2 & 2

2 & 3

3.3

1 & 2

2 & 3

1 & 2

2 & 3

2 & 3

Note: Pins designated are in the closed position