ADAPTEC, INC. ACB-2370 Data bus: 16-bit, ISA Size: Half-length, full-height card Hard drives supported: Two RLL ST506/412 drives Floppy drives supported: None [Image] CONNECTIONS Function Location 20-pin data cable connector-drive 1 J1 20-pin data cable connector-drive 0 J2 34-pin control cable connector-hard drive J3 3-pin connector-drive active LED J5 Serial monitor output J10 USER CONFIGURABLE SETTINGS Function Location Setting » Hard drive port address J6/jumper 1 open 1F0-1F7h Hard drive port address J6/jumper 1 closed 170-177h » Zero wait state enabled J6/jumper 3 open Zero wait state disabled J6/jumper 3 closed » 35 m sec step rate and J6/jumper 4 open recalibrate to 0 minus 1 16 m sec step rate and J6/jumper 4 closed recalibrate to 0 » Serial monitor mode disabled J6/jumper 6 open Serial monitor mode enabled J6/jumper 6 closed (2400 baud) » Hard drive Interrupt is IRQ14 J13 pins 1 & 2 closed Hard drive Interrupt is IRQ15 J13 pins 2 & 3 closed » BIOS address C800h J14 pins 1 & 2 closed BIOS address CC00h J14 pins 2 & 3 closed BIOS disabled J14 all pins open MISCELLANEOUS TECHNICAL NOTES Jumpers J6/jumper 2 and J6/jumper 5 are not used. Jumpers J4, J7, J8, J9, J11, J12 and J15 are for factory tests and should not be altered. Pins 3 & 4 on jumper J13 should never be closed. J13 or J14 should never have more than two pins closed at a time.