NATIONAL COMPUTERS, LTD. (NCL AMERICA)
NCL DB825
| 
 
  | |
| 
 Data bus:  | 
 16-bit, ISA  | 
| 
 Size:  | 
 Half-length, full-height card  | 
| 
 Hard drive supported:  | 
 Two IDE (AT) Interface drives  | 
| 
 Floppy drives supported:  | 
 Two 360KB, 720KB, 1.2MB, or 1.44MB drives  | 
| 
 CONNECTIONS  | |
| 
 Function  | 
 Location  | 
| 
 34-pin control cable connector - floppy drive  | 
 J3  | 
| 
 40-pin 3 1/2" IDE(AT) Interface connector  | 
 J4  | 
| 
 44-pin 2 1/2" IDE(AT) Interface connector  | 
 J5  | 
| 
 4-pin connector - Drive active LED  | 
 JP10  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Location  | 
 Setting  | |
| » | 
 Floppy drive DMA Acknowledge is DACK2  | 
 JP1  | 
 pins 1 & 2 closed  | 
| 
 Floppy drive DMA Acknowledge is DACK3  | 
 JP1  | 
 pins 2 & 3 closed  | |
| » | 
 Interrupt Request is IRQ6  | 
 JP2  | 
 pins 1 & 2 closed  | 
| 
 Interrupt Request is IRQ10  | 
 JP2  | 
 pins 2 & 3 closed  | |
| » | 
 Hard drive Interrupt Request is IRQ14  | 
 JP3  | 
 pins 1 & 2 closed  | 
| 
 Hard drive Interrupt Request is IRQ15  | 
 JP3  | 
 pins 2 & 3 closed  | |
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Location  | 
 Setting  | |
| » | 
 Floppy drive DMA Request is DREQ2  | 
 JP4  | 
 pins 1 & 2 closed  | 
| 
 Floppy drive DMA Request is DREQ3  | 
 JP4  | 
 pins 2 & 3 closed  | |
| » | 
 Hard drive port address is 1F0-1F7h  | 
 JP6  | 
 open  | 
| 
 Hard drive port address is 170-177h  | 
 JP6  | 
 closed  | |
| » | 
 Floppy drive port address is 3F2-3F7h  | 
 JP7  | 
 open  | 
| 
 Floppy drive port address is 372-377h  | 
 JP7  | 
 closed  | |
| » | 
 Normal operation enabled  | 
 JP8  | 
 open  | 
| 
 Diagnostic mode enabled  | 
 JP8  | 
 closed  | |
| » | 
 I/O Channel Ready signal disabled  | 
 JP9  | 
 open  | 
| 
 I/O Channel Ready signal enabled  | 
 JP9  | 
 closed  | |
| » | 
 BIOS enabled  | 
 JP11  | 
 closed  | 
| 
 BIOS disabled  | 
 JP11  | 
 open  | |
| » | 
 Primary BIOS mode enabled  | 
 JP12  | 
 closed  | 
| 
 Co-existing BIOS mode enabled  | 
 JP12  | 
 open  | |
| 
 BIOS ADDRESS  | |||
| 
 Address  | 
 JP5/jumper 1  | 
 JP5/jumper 2  | |
| » | 
 C800h  | 
 open  | 
 open  | 
| 
 CC00h  | 
 closed  | 
 open  | |
| 
 D800h  | 
 open  | 
 closed  | |
| 
 DC00h  | 
 closed  | 
 closed  | |