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UN-1075

INFORMTECH INTERNATIONAL, INC.

UN-1075

Data bus: 16-bit, ISA

Size: Half-length, half-height card

Hard drives supported: Two IDE (AT) Interface drives

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

CONNECTIONS

Function

Location

40-pin IDE (AT) Interface connector - internal

JP1

16-pin game port

JP2

10-pin serial port 1 connector - internal

JP3

10-pin serial port 2 connector - external

JP4

34-pin floppy drive connector - internal

JP5

HDD LED connector

JP8

DB-25 parallel port connector - external

JP15

USER CONFIGURABLE SETTINGS

Function

Location

Setting

IDEIOR path = ATBUS IOR

J1

Pins 2 & 3 closed

 

IDEIOR path = W83758P - IOROP

J1

Pins 1 & 2 closed

IDEIOW path = ATBUS IOW

J2

Pins 2 & 3 closed

 

IDEIOW path = W83758P - IOWOP

J2

Pins 1 & 2 closed

Floppy drive A & B normal mode

JP6/1

Pins 1 & 2 closed

 

Floppy drive A & B change mode

JP6/1

Pins 2 & 3 closed

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Floppy drive address = 3F0h - 3F7h

JP6/2

Pins 2 & 3 closed

 

Floppy drive address = 370h - 377h

JP6/2

Pins 1 & 2 closed

IDE bus enabled

JP6/3

Pins 1 & 2 closed

 

IDE bus disabled

JP6/3

Pins 2 & 3 closed

HDD address = 3F6h, 3F7h, 1F0h - 1F7h

JP6/4

Pins 2 & 3 closed

 

HDD address = 376h, 377h, 170h - 177h

JP6/4

Pins 1 & 2 closed

Floppy drive controller enabled

JP6/5

Pins 1 & 2 closed

 

Floppy drive controller disabled

JP6/5

Pins 2 & 3 closed

Game port enabled

JP16

Closed

 

Game port disabled

JP16

Open

SERIAL PORT 1 (JP3) CONFIGURATION

COM/Address

JP9/1

JP9/2

COM1/3F8h

Pins 1 & 2 closed

Pins 2 & 3 closed

 

COM3/3E8h

Pins 2 & 3 closed

Pins 1 & 2 closed

 

COM4/2E8h

Pins 1 & 2 closed

Pins 1 & 2 closed

 

Disabled

Pins 2 & 3 closed

Pins 2 & 3 closed

SERIAL PORT 1 INTERRUPT SELECTION

IRQ

JP12/1

JP12/2

JP12/3

IRQ4

Closed

Open

Open

 

IRQ3

Open

Closed

Open

 

IRQ5

Open

Open

Closed

SERIAL PORT 2 (JP4) CONFIGURATION

COM/Address

JP9/3

JP9/4

COM2/2F8h

Pins 1 & 2 closed

Pins 2 & 3 closed

 

COM3/3E8h

Pins 1 & 2 closed

Pins 1 & 2 closed

 

COM4/2E8h

Pins 2 & 3 closed

Pins 1 & 2 closed

 

Disabled

Pins 2 & 3 closed

Pins 2 & 3 closed

SERIAL PORT 2 INTERRUPT SELECTION

IRQ

JP12/4

JP12/5

JP12/6

IRQ3

Closed

Open

Open

 

IRQ4

Open

Closed

Open

 

IRQ5

Open

Open

Closed

PARALLEL PORT (JP15) CONFIGURATION

LPT/Address

JP9/5

JP9/6

LPT1/378h

Pins 2 & 3 closed

Pins 1 & 2 closed

 

LPT2/278h

Pins 1 & 2 closed

Pins 2 & 3 closed

 

LPT3/38Ch

Pins 1 & 2 closed

Pins 1 & 2 closed

 

Disabled

Pins 2 & 3 closed

Pins 2 & 3 closed

PARALLEL PORT INTERRUPT SELECTION

IRQ

JP12/7

JP12/8

IRQ7

Closed

Open

 

IRQ5

Open

Closed