Western Digital WDAT-240, WDAT-440 Installation Guide

Introduction

Western Digital manufactures three AT adapter boards for use
with intelligent or integrated hard disk drives. These drives have their
own controller electronics mounted directly on the drive assembly.
Many AT systems require an adapter card in order to accommodate these
drives. The WD-AT adapter boards all provide an integrated hard di sk
interface that sup-ports two daisy chained drives. The WDAT-240 and
WDAT-440 also provide a floppy controller which can support two daisy
chained floppy drives. Two serial inte rfaces and a parallel interface are
available on the WDAT-440.

MODEL DESCRIPTION

WDAT- 140 Provides one hard drive interface

WDAT-240 Provides one hard drive interface

and one floppy drive controller

WDAT-440 Provides one hard drive interface,

one floppy controller, two serial
ports, and one parallel port

Unpacking The Adapter Board

CAUTION

Hold the adapter board by the ends. Static electrical
discharge can permanently damage components if the
board is not carefully handled.

Remove the board from its anti-static pouch and inspect it for any
visible signs of damage (scratches, loose components, broken
connectors). Contact the dealer if there is damage.

Retain any packing materials for reuse if it becomes necessary to
return your WDAT board.

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This board does not work with XT drives or systems. If you have an
XT drive and system, you need the WDXT-140 or WDXT-150.

You need to know the types of devices that you plan to connect to
your adapter board in order to configure the board properly.

Identify Board

Figures 1-1 through 1- 3 show the connect or and j umper locat ions
for the WDAT- 140, WDAT-240, and WDAT-440 adapter boards.

Look at the illustration for the board you are using and locate
each connector and jumper block. Familiarize yourself with these
locations. Note that the connector and jumper names are also marked on
the board itself.

CAUTION

Handle the WDAT by the ends of the board. Some of the
chips are static sensitive and damage may occur if the
board is incorrectly handled.

Figure 1-1. WDAT- 140 Adapter Board

Figure 1-2. WDAT-240 Adapter Board

Figure 1-3. WDAT Adapter Board

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