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DTC-2278S/D (900140-89B)

DATA TECHNOLOGY CORPORATION

DTC-2278S/D (900140-89B)

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

9-pin serial port 1 - external

CN1

34-pin cable connector - floppy drive

J5

25-pin parallel port - external

CN2

40-pin secondary IDE(AT) connector

J6

10-pin serial port 2 - internal

J2

40-pin primary IDE(AT) connector

J7

16-pin game port

J4

4-pin connector - drive active LED

J8

USER CONFIGURABLE SETTINGS

Function

Label

Position

Floppy drive interface enabled

W7

Pins 2 & 3 closed

 

Floppy drive interface disabled

W7

Pins 1 & 2 closed

Game port enabled

W8

Closed

 

Game port disabled

W8

Open

Parallel port is uni-directional

W17

Closed

 

Parallel port is bi-directional

W17

Open

PARALLEL PORT ADDRESS SELECTION

Setting

W1

W2

LPT1 (378h)

Pins 2 & 3 closed

Pins 1 & 2 closed

 

LPT2 (278h)

Pins 1 & 2 closed

Pins 2 & 3 closed

 

LPT3 (3BCh)

Pins 2 & 3 closed

Pins 2 & 3 closed

 

Disabled

Pins 1 & 2 closed

Pins 1 & 2 closed

SERIAL PORT 1 ADDRESS SELECTION

Setting

W5

W6

COM1 (3F8h)

Pins 1 & 2 closed

Pins 2 & 3 closed

 

COM3 (3E8h)

Pins 2 & 3 closed

Pins 1 & 2 closed

 

COM4 (2E8h)

Pins 2 & 3 closed

Pins 2 & 3 closed

 

Disabled

Pins 1 & 2 closed

Pins 1 & 2 closed

SERIAL PORT 2 ADDRESS SELECTION

Setting

W3

W4

COM2 (2F8h)

Pins 1 & 2 closed

Pins 2 & 3 closed

 

COM3 (3E8h)

Pins 2 & 3 closed

Pins 2 & 3 closed

 

COM4 (2E8h)

Pins 2 & 3 closed

Pins 1 & 2 closed

 

Disabled

Pins 1 & 2 closed

Pins 1 & 2 closed

SERIAL PORT 1 INTERRUPT SELECTION

IRQ

W14

W15

W16

 

IRQ3

Open

Closed

Open

IRQ4

Open

Open

Closed

 

IRQ5

Closed

Open

Open

SERIAL PORT 2 INTERRUPT SELECTION

IRQ

W11

W12

W13

IRQ3

Open

Open

Closed

 

IRQ4

Open

Closed

Open

 

IRQ5

Closed

Open

Open

PARALLEL PORT INTERRUPT SELECTION

IRQ

W9

W10

 

IRQ5

Closed

Open

IRQ7

Open

Closed