Data bus:

16-bit ISA

Size:

Three/quarter-length, full-height card

Hard drive supported:

Two MFM ST506/412 drives

Floppy drives supported:

Four 360KB, 720KB, 1.2MB, 1.44MB drives

CONNECTIONS

Function

Location

34-pin control cable connector - hard drive

J1

20-pin data cable connector

J2

20-pin data cable connector

J3

34-pin connector - floppy drive interface (drives 1 & 2)

J4

4-pin connector - drive active LED

J5

34-pin connector - floppy drive interface (drives 3 & 4)

J6

34-pin connector - floppy drive interface (drives 3 & 4) - external

J7

USER CONFIGURABLE SETTINGS

Function

Location

Setting

»

Floppy drive interface address select primary

W8

open

Floppy drive interface address select secondary

W8

closed

»

Hard drive address is primary

W11

open

Hard drive address is secondary

W11

closed

HARD DRIVE INTERFACE CONFIGURATION

Setting

W5

W12

»

Enabled

pins 2 & 3 closed

closed

Disabled

pins 1 & 2 closed

open

FLOPPY DRIVE INTERFACE CONFIGURATION

Setting

W9

W10

»

Enabled

closed

closed

Disabled

open

open

Note: The location of W9 is unidentified.