INFORMTECH INTERNATIONAL, INC.
UN-1075
| 
 
  | 
Data bus:
16-bit, ISASize:
Half-length, half-height cardHard drives supported:
Two IDE (AT) Interface drivesFloppy 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  | |