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DTC 2278E (400516-89A)

DATA TECHNOLOGY CORPORATION

DTC 2278E (400516-89A)

Data bus:

32-bit VL-Bus

Size:

Three/quarter-length, half-height card

Hard drive supported:

Two IDE(AT) or EIDE 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

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

Game port enabled

W14

closed

 

Game port disabled

W14

open

PARALLEL PORT INTERRUPT

IRQ

W12

W13

IRQ7

open

closed

 

IRQ5

closed

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

Note: COM1 & COM3 are automatically configured to IRQ4.

COM2 & COM4 are automatically configured to IRQ3.

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

Note: COM1 & COM3 are automatically configured to IRQ4.

COM2 & COM4 are automatically configured to IRQ3.

PARALLEL PORT MODE CONFIGURATION

Mode

W7

W22

Printer

pins 2 & 3 closed

pins 2 & 3 closed

 

ECP

pins 2 & 3 closed

pins 1 & 2 closed

 

EPP

pins 1 & 2 closed

pins 2 & 3 closed

Note: You must select a DMA channel when using ECP mode.

DMA SELECTION

Channel

W8

W9

W10

W11

1

closed

open

closed

open

3

open

closed

open

closed

MISCELLANEOUS TECHNICAL NOTES

The floppy controller in automatically configured: When a cable is attached, it is enabled, when no cable is attached it is disabled.