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SR4

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