UNIDENTIFIED

ID574

Data bus: 16-bit, ISA

Size: Half-length, full-height card

Hard drives supported: Two AT Interface (IDE) drives

Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB

CONNECTIONS

Function

Location

4-pin connector-drive active LED

CN1

40-pin AT Interface (IDE) connector

CN2

34-pin control cable connector-floppy drive

CN3

15-pin game port-internal

CN4

9-pin serial port 2 (COM2)-internal

CN5

9-pin serial port 1 (COM1)-external

CN6

25-pin parallel port-external

CN7

PARALLEL PORT (CN7) CONFIGURATION

LPT

JP6/pins 9 & 10

JP6/pins 11 & 12

»

LPT2 (378-37F)

closed

open

 

LPT3 (278-27F)

open

closed

 

Disabled

open

open

USER CONFIGURABLE SETTINGS

Function

Location

Setting

»

Hard drive enabled

J9

open

 

Hard drive disabled

J9

closed

»

IOCHRDY signal disabled

JP1

closed

 

IOCHRDY signal enabled

JP1

open

»

Floppy drive enabled

JP3

open

 

Floppy drive disabled

JP3

closed

»

Game port (CN4) disabled

JP5

open

 

Game port (CN4) enabled

JP5

closed

SERIAL PORT 1 (CN6) CONFIGURATION

COM

JP6/pins 1 & 2

JP6/pins 3 & 4

»

COM1 (3F8-3FF)

closed

open

 

COM3 (3E8-3EF)

open

closed

 

COM4 (2E8-2EF)

closed

closed

 

Disabled

open

open

SERIAL PORT 2 (CN5) CONFIGURATION JUMPERS - JP6

COM

JP6/pins 5 & 6

JP6/pins 7 & 8

»

COM2 (2F8-2FF)

closed

open

 

COM4 (2E8-2EF)

open

closed

 

COM3 (3E8-3EF)

closed

closed

 

Disabled

open

open

SERIAL PORT 1 (CN6) INTERRUPT REQUEST

IRQ

JP7/pins 1 & 2

JP7/pins 3 & 4

»

IRQ4

closed

open

 

IRQ5

open

closed

SERIAL PORT 2 (CN5) INTERRUPT REQUEST

IRQ

JP7/pins 5 & 6

JP7/pins 7 & 8

»

IRQ3

closed

open

 

IRQ5

open

closed

PARALLEL PORT (CN7) INTERRUPT REQUEST

IRQ

JP7/pins 9 & 10

JP7/pins 11 & 12

»

IRQ5

closed

open

 

IRQ7

open

closed