LAVA COMPUTER MANUFACTURING, INC.
VL-550
| 
 Data Bus  | 
 32-bit VESA Local Bus  | 
| 
 Card Size  | 
 Three-quarter length, full-height card  | 
| 
 Hard Drives supported  | 
 Four EIDE (AT) drives  | 
| 
 Floppy drives supported  | 
 Two 360KB, 720KB, 1.2MB, or 1.44MB drives  | 
| 
 CONNECTIONS  | |||
| 
 Function  | 
 Location  | 
 Function  | 
 Location  | 
| 
 9-pin serial port 1 - external  | 
 CN1  | 
 40-pin primary EIDE(AT) connector  | 
 CN5  | 
| 
 25-pin parallel port - external  | 
 CN2  | 
 4-pin connector - drive active LED  | 
 CN6  | 
| 
 25-pin serial port 2 - internal  | 
 CN3  | 
 40-pin secondary EIDE(AT) connector  | 
 CN7  | 
| 
 34-pin cable connector - floppy drive  | 
 CN4  | ||
| 
 Note: 25-pin serial port 2 connector is attached via ribbon to 10-pin internal connector CN3.  | |||
| 
 USER CONFIGURABLE SETTINGS  | ||
| 
 Function  | 
 Label  | 
 Position  | 
| 
 Floppy drive interface enabled  | 
 JP1  | 
 Pins 1 & 2 closed  | 
| 
 Floppy drive interface disabled  | 
 JP1  | 
 Pins 2 & 3 closed  | 
| 
 IOCHRDY signal disabled  | 
 JP2  | 
 Open  | 
| 
 IOCHRDY signal enabled  | 
 JP2  | 
 Closed  | 
| 
 Parallel port IRQ5 select  | 
 JP5  | 
 Pins 1 & 2 closed  | 
| 
 Parallel port IRQ7 select  | 
 JP5  | 
 Pins 2 & 3 closed  | 
| 
 Serial port 2 COM2 (2F8h) select  | 
 JP17  | 
 Pins 2 & 3 closed  | 
| 
 Serial port 2 COM4 (2E8h) select  | 
 JP17  | 
 Pins 1 & 2 closed  | 
| 
 Serial port 1 COM1 (3F8h) select  | 
 JP18  | 
 Pins 2 & 3 closed  | 
| 
 Serial port 1 COM3 (3E8h) select  | 
 JP18  | 
 Pins 1 & 2 closed  | 
| 
 IDE(AT) secondary interface enabled  | 
 JP22  | 
 Pins 2 & 3 closed  | 
| 
 IDE(AT) secondary interface disabled  | 
 JP22  | 
 Pins 1 & 2 closed  | 
| 
 VESA local bus speed 33 Mhz select  | 
 JP23  | 
 Pins 1 & 2 closed  | 
| 
 VESA local bus speed 50 Mhz select  | 
 JP23  | 
 Pins 2 & 3 closed  | 
| 
 IDE(AT) interface enabled  | 
 JP24  | 
 Pins 2 & 3 closed  | 
| 
 IDE(AT) interface disabled  | 
 JP24  | 
 Pins 1 & 2 closed  | 
| 
 DMA CHANNEL SELECTION  | ||
| 
 Channel  | 
 JP3  | 
 JP4  | 
| 
 1  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
| 
 3  | 
 Pins 2 & 3 closed  | 
 Pins 2 & 3 closed  | 
| 
 PARALLEL PORT ADDRESS SELECTION  | ||
| 
 Setting  | 
 JP14  | 
 JP15  | 
| 
 LPT1 (3BCh)  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
| 
 LPT2 (378h)  | 
 Pins 2 & 3 closed  | 
 Pins 1 & 2 closed  | 
| 
 LPT3 (278h)  | 
 Pins 1 & 2 closed  | 
 Pins 2 & 3 closed  | 
| 
 Disabled  | 
 Pins 2 & 3 closed  | 
 Pins 2 & 3 closed  | 
| 
 SERIAL PORT 1 INTERRUPT SELECTION  | ||||||||
| 
 IRQ  | 
 JP6  | 
 JP7  | 
 JP8  | 
 JP9  | 
 JP10  | 
 JP11  | 
 JP12  | 
 JP13  | 
| 
 IRQ2  | 
 Open  | 
 Open  | 
 2 & 3  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
| 
 IRQ3  | 
 2 & 3  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
| 
 IRQ4  | 
 Open  | 
 2 & 3  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
| 
 IRQ5  | 
 Open  | 
 Open  | 
 Open  | 
 2 & 3  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
| 
 IRQ10  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 2 & 3  | 
 Open  | 
 Open  | 
 Open  | 
| 
 IRQ11  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 2 & 3  | 
 Open  | 
 Open  | 
| 
 IRQ12  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 2 & 3  | 
 Open  | 
| 
 IRQ15  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 2 & 3  | 
| 
 Note: Designated pins should be in the closed position.  | ||||||||
| 
 SERIAL PORT 2 INTERRUPT SELECTION  | ||||||||
| 
 IRQ  | 
 JP6  | 
 JP7  | 
 JP8  | 
 JP9  | 
 JP10  | 
 JP11  | 
 JP12  | 
 JP13  | 
| 
 IRQ2  | 
 Open  | 
 Open  | 
 1 & 2  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
| 
 IRQ3  | 
 1 & 2  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
| 
 IRQ4  | 
 Open  | 
 1 & 2  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
| 
 IRQ5  | 
 Open  | 
 Open  | 
 Open  | 
 1 & 2  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
| 
 IRQ10  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 1 & 2  | 
 Open  | 
 Open  | 
 Open  | 
| 
 IRQ11  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 1 & 2  | 
 Open  | 
 Open  | 
| 
 IRQ12  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 1 & 2  | 
 Open  | 
| 
 IRQ15  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 1 & 2  | 
| 
 Note: Designated pins should be in the closed position.  | ||||||||
| 
 PARALLEL PORT MODE SELECTION  | ||
| 
 Setting  | 
 JP16  | 
 JP19  | 
| 
 Uni-directional  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
| 
 EPP  | 
 Pins 1 & 2 closed  | 
 Pins 2 & 3 closed  | 
| 
 EPP/ECP  | 
 Pins 2 & 3 closed  | 
 Pins 1 & 2 closed  | 
| 
 External floppy disk mode  | 
 Pins 2 & 3 closed  | 
 Pins 2 & 3 closed  | 
| 
 VESA BUS I/O DELAY MODE SELECTION  | ||
| 
 Setting  | 
 JP20  | 
 JP21  | 
| 
 PIO mode 0 - 600nsec  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
| 
 PIO mode 1 - 500nsec  | 
 Pins 2 & 3 closed  | 
 Pins 1 & 2 closed  | 
| 
 PIO mode 2 - 400nsec  | 
 Pins 1 & 2 closed  | 
 Pins 2 & 3 closed  | 
| 
 PIO mode 3 - 240nsec  | 
 Pins 2 & 3 closed  | 
 Pins 2 & 3 closed  |