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DTC2278S

DATA TECHNOLOGY CORPORATION

DTC2278S

Data bus:

32-bit VL-Bus

Size:

Three/quarter-length, half-height card

Hard drive supported:

Two IDE(AT) interface drives

Floppy drives supported:

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

CONNECTIONS

Function

Location

10-pin serial port 2 - internal

J2

9-pin serial port 1 - external (via ribbon cable)

J3

16-pin game port

J4

34-pin cable connector - floppy drive

J5

40-pin connector - secondary IDE(AT) interface

J6

40-pin connector - primary IDE(AT) interface

J7

4-pin connector - drive active LED

J8

25-pin parallel port - external

J9

USER CONFIGURABLE SETTINGS

Function

Location

Setting

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

LPT

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

COM

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

COM

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

PARALLEL PORT INTERRUPT

IRQ

W9

W10

IRQ7

open

closed

 

IRQ5

closed

open

SERIAL PORT 1 INTERRUPT SELECT

IRQ

W14

W15

W16

IRQ4

open

open

closed

 

IRQ3

open

closed

open

 

IRQ5

closed

open

open

SERIAL PORT 2 INTERRUPT SELECT

IRQ

W11

W12

W13

IRQ3

open

open

closed

 

IRQ4

open

closed

open

 

IRQ5

closed

open

open