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WD1003S-WA4

WESTERN DIGITAL CORPORATION

WD1003S-WA4

Data bus: 16-bit, ISA

Size: Full-length, half-height card

Hard drives supported: Two ST506/412 MFM drives

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

CONNECTIONS

Function

Location

34-pin control cable connector-hard drive

CN1

20-pin data cable connector-drive 0

CN2

20-pin data cable connector-drive 1

CN3

34-pin data cable connector-floppy drive

CN4

4-pin connector-drive active LED

CN5

DB-9 serial port 1 connector-external

CN6

DB-25 parallel port connector-external

CN7

USER CONFIGURABLE JUMPERS

Function

Location

Setting

Floppy drive port address is 3F0-3F7h

JP1

pins 3 & 4 closed

 

Floppy drive disabled

JP1

pins 2 & 3 closed

 

Floppy drive port address is 370-377h

JP1

pins 1 & 2 closed

Hard drive port address is 1F0-1F7h

JP2

pins 2 & 3 closed

 

Hard drive port address is 170-177h

JP2

pins 2 & 3 closed

Parallel port is set for LPT1

JP3 and JP3A

pins 1 & 2 closed

 

Parallel port disabled

JP3 and JP3A

pins 2 & 3 closed

 

Parallel port is set for LPT2

JP3 and JP3A

pins 3 & 4 closed

Serial port is set for COM1

JP4 and JP4A

pins 1 & 2 closed

 

Serial port is disabled

JP4 and JP4A

pins 2 & 3 closed

 

Serial port is set for COM2

JP4 and JP4A

pins 3 & 4 closed