AMERICAN MULTISOURCE, INC.

SR4

Data bus:

16-bit ISA

Size:

Three/quarter-length, full-height card

Hard drive supported:

Two RLL 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

USER CONFIGURABLE SETTINGS

Function

Location

Setting

»

Floppy drive interface address select primary

W3

open

 

Floppy drive interface address select secondary

W3

closed

»

Hard drive interface address select primary

W4

open

 

Hard drive interface address select secondary

W4

closed

»

On-board BIOS enabled

W6

closed

 

On-board BIOS disabled

W6

open

HARD DRIVE INTERFACE CONFIGURATION

Setting

W1

W2

»

Enabled

closed

pins 2 & 3 closed

 

Disabled

open

pins 1 & 2 closed

FLOPPY DRIVE INTERFACE CONFIGURATION

Setting

W5

W7

»

Enabled

closed

closed

 

Disabled

open

open

BASE MEMORY ADDRESS SELECTION

Address

W8

W9

C8000h

closed

closed

CC000h

closed

open

D0000h

open

closed

D4000h

open

open