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DTC2278VL (900085-89A)

DATA TECHNOLOGY CORPORATION

DTC2278VL (900085-89A)

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

25-pin parallel port

J1

10-pin serial port 2

J2

10-pin serial port 1

J3

16-pin game port

J4

34-pin cable connector - floppy drive

J5

40-pin connector - IDE(AT) interface

J6

4-pin connector - drive active LED

J7

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Game port enabled

W1

closed

 

Game port disabled

W1

open

Parallel port is uni-directional

W2

closed

 

Parallel port is bi-directional

W2

open

IDE(AT) interface interrupt IRQ14 select

W9

pins 1 & 2 closed

 

IDE(AT) interface interrupt IRQ15 select

W9

pins 2 & 3 closed

Floppy drive interface enabled

W10

pins 2 & 3 closed

 

Floppy drive interface disabled

W10

pins 1 & 2 closed

Floppy drive interface address 3F0-3F7h select

W11

pins 1 & 2 closed

 

Floppy drive interface address 370-377h select

W11

pins 2 & 3 closed

IDE(AT) interface address 1F0-1F7, 3F6-3F7h select

W12

pins 1 & 2 closed

 

IDE(AT) interface address 170-177, 376-377h select

W12

pins 2 & 3 closed

IDE(AT) interface enabled

W13

pins 2 & 3 closed

 

IDE(AT) interface disabled

W13

pins 1 & 2 closed

PRIMARY SERIAL PORT ADDRESS SELECTION

COM

W7

W8

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

SECONDARY SERIAL PORT ADDRESS SELECTION

COM

W5

W6

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 ADDRESS SELECTION

LPT

W3

W4

LPT1 (378h)

pins 1 & 2 closed

pins 2 & 3 closed

 

LPT2 (278h)

pind 2 & 3 closed

pins 1 & 2 closed

 

LPT3 (3BCh)

pins 2 & 3 closed

pins 2 & 3 closed

 

Disabled

pins 1 & 2 closed

pins 1 & 2 closed

IDE DATA TRANSFER RATE (FOR >33MHZ VL-BUS SYSTEMS)

Rate (MBps)

W14

W15

W16

W17

W18

3.3

pins 1 & 2

pins 2 & 3

pins 1 & 2

pins 2 & 3

pins 2 & 3

3.6

pins 2 & 3

pins 1 & 2

pins 1 & 2

pins 2 & 3

pins 2 & 3

3.8

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 2 & 3

pins 2 & 3

4.2

pins 2 & 3

pins 2 & 3

pins 2 & 3

pins 1 & 2

pins 2 & 3

4.5

pins 1 & 2

pins 2 & 3

pins 2 & 3

pins 1 & 2

pins 2 & 3

5.0

pins 2 & 3

pins 1 & 2

pins 2 & 3

pins 1 & 2

pins 2 & 3

5.6

pins 1 & 2

pins 1 & 2

pins 2 & 3

pins 1 & 2

pins 2 & 3

6.3

pins 2 & 3

pins 2 & 3

pins 1 & 2

pins 1 & 2

pins 2 & 3

7.2

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 2 & 3

Note: Pins designated are in the closed position. If the transfer rate of the drive you are using in your sytem does not exactly match one of the rates listed above, select the rate which is closest to but below the actual rate of the drive.

IDE DATA TRANSFER RATE (FOR <=33MHZ VL-BUS SYSTEMS)

Rate (MBps)

W14

W15

W16

W17

W18

3.9

pins 2 & 3

pins 2 & 3

pins 1 & 2

pins 2 & 3

pins 1 & 2

 

3.3

pins 1 & 2

pins 2 & 3

pins 2 & 3

pins 2 & 3

pins 1 & 2

 

3.5

pins 2 & 3

pins 1 & 2

pins 2 & 3

pins 2 & 3

pins 1 & 2

 

3.7

pins 1 & 2

pins 1 & 2

pins 2 & 3

pins 2 & 3

pins 1 & 2

 

4.2

pins 1 & 2

pins 2 & 3

pins 1 & 2

pins 2 & 3

pins 1 & 2

 

4.4

pins 2 & 3

pins 1 & 2

pins 1 & 2

pins 2 & 3

pins 1 & 2

 

4.8

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 2 & 3

pins 1 & 2

 

5.1

pins 2 & 3

pins 2 & 3

pins 2 & 3

pins 1 & 2

pins 1 & 2

 

5.6

pins 1 & 2

pins 2 & 3

pins 2 & 3

pins 1 & 2

pins 1 & 2

 

6.1

pins 2 & 3

pins 1 & 2

pins 2 & 3

pins 1 & 2

pins 1 & 2

 

6.7

pins 1 &2

pins 1 & 2

pins 2 & 3

pins 1 & 2

pins 1 & 2

 

7.4

pins 2 & 3

pins 2 & 3

pins 1 & 2

pins 1 & 2

pins 1 & 2

 

8.3

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 1 & 2

Note: Pins designated are in the closed position. If the transfer rate of the drive you are using in your sytem does not exactly match one of the rates listed above, select the rate which is closest to but below the actual rate of the drive.

PRIMARY SERIAL PORT INTERRUPT SELECTION

IRQ

W19

W20

W21

IRQ4

closed

open

open

 

IRQ3

open

closed

open

 

IRQ5

open

open

closed

SECONDARY SERIAL PORT INTERRUPT SELECTION

IRQ

W22

W23

W24

IRQ3

closed

open

open

 

IRQ4

open

closed

open

 

IRQ5

open

open

closed

PARALLEL PORT INERRUPT SELECTION

IRQ

W25

W26

IRQ7

closed

open

 

IRQ5

open

closed