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2000

SERIES

INDUSTRIAL

COMPUTERS

User Manual

January 1988

<C)

Copyright

Texas

Microsystems,

Inc.

1986

All

rights

reserved.

Trsdemarks:

The

£ollowing

are

trademarks

o£

International

Business

machines:

IBM, AT,

XT

The

in£ormation

in

this

document

is

believed

to

be

accurate.

However,

Texas

Microsystems,

Inc.

does

not

assume

any

liability

£or

inaccuracies

caused

by

human

error,

misinterpretation,

typography,

or

other

causes.

All

equipment

speci£ications

are

subJect

to

change

without

notice.

ii

1.

2.

3.

3.4

4.

5.

TABLE

OF

CONTENTS

GENERAL

DESCRIPTION

••••••••••

1.1

Introduction

•••••••••••••

1.2

Computer

Speci£ications.

1.3

B286

Speci£ications

••••••

CONFIGURATION

AND

INSTALLATION

•••

Rack

Mounting

•••••••••••••••

1

1

1

2

3

3

2.1

2.2

Cable

Connections...........

•

••••

4

2.2.1

Power

Connections

and

Operating

Voltagea

4

2.3

2.2.2

Keyboard

Connections..

•

••••

2.2.3

Monitor

Connections

••••••••

2.2.4

External

Speaker

Jack

•••••••

Installing

Modular

Options

••••••••

2.3.1

Accessing

Modules

in

the

2001

2.3.2

Accessing

Modules

in

the

2003

2.3.3

Accessing

Modules

in

the

2004

2.3.4

Expansion

Slot

Con£iguration

••

2.3.5

Option

Compatibility

••

Computer.

Computer

••

Computer

••

OPER'ATION

•••••••••••••••••••••••••

3.1

3.2

Firmware

Operation

•••••••••••••••••••••••

3.1.1

BIOS

Startup

Routine

••

3.1.2

Setup

Utility

••••••••••••••••••••

3.1.3

Changing

Processor

Clock

Speed.

3.1.4

Continuous

Loop

Diagnostics.

Preparing

the

Hard

Disk

Drive

•••••

3.2.1

Partitioning

the

Hard

Disk

•••••••

3.2.2

Formatting

the

Hard

Disk

••••••••••

3.3

Floppy

Disk

Drives

••••••••••••••••••••••

3.3.1

Compatibility

Guidelines

••••••••••

BASIC

Interpreter........

•••••••••

•

••••••

MAINTENANCE...............

•••••

•

•••••

4.1

4.2

4.3

4.4

Fuses

••••••••••••••••

Fan

Filters

•••••••••••••••••

4.2.1

2001

Computer

Filter

••

4.2.2

2003

Computer

Filter

••••

Replacing

the

B286

Battery

••••

Factory

Return

Goods

Authorizations

.....

(RGA)

•••

MODULES

••••••••••••••••••••••••••••••••

5.1

Central

Processing

Units

(CPUs).

5.1.1

5.1.2

5.1.3

5.1.4

5.1.5

5.1.6

5.1.7

5.1.8

B286

(AT)

CPU

•••••••••

Description

••••.•••••••

Speci£ications

•••••••••••••

Installation

••••••••••

Rev

D

Con£iguration......

•

••••••••••••

Rev

A-C

Con£iguration....

••••••

•

••••

Schematics

£or

rev

D CPU. •

••••••

Schematics

£or

rev

A-C

CPU

••

iii

4

S

S

S

S

6

6

6

7

8

8

9

14

17

17

18

18

19

20

20

21

22

22

22

22

22

23

23

24

24

24

24

24

2S

26

27

27

27

1.

GENERAL

DESCRIPTION

1.1

Introduction

The

2000

series

of

industrial

computers

are

suited

to

a

wide

variety

of

applications

where

durability.

and

ruggedness

are

required

from

a

powerful

IBM

PC

XT/AT

compatible

computer

system.

Factory

automation.

machine

control.

process

control

and

data

acquisition

systems

are

only

a

few

of

these

applications.

Because

the

computers

are

completely

IBM

XT

or

AT

compatible,

they

take

advantage

of

hundreds

of

application

software

packages.

translators,

and

operating

systems.

Hundreds,

possibly

thousands

of

compatible

plug

in

cards

ranging

from

sophisticated

graphics

cards

to

thermocouple

sensors

cards

are

also

available.

This

manual

can

be

used

in

conJunction

with

the

2001A,

2003A

and

2004A

AT

computers

for

configuration

reference,

setup

and

operating

information,

maintenance

procedures.

and

specifications.

1.2

Computer

Specifications

Each

o£

the

computers

have

the

following

features

in

common:

-

IBM

PC/AT

Compatibility

-

Shock

mounted

disk

drives

(in

most

configurations)

-

Passive

backplane

(5,8

bit

and

5,16

bit

slots>

-

Vertically

removable

CPU

card

for

maintenance

-

150

Watt

power

supply

In

addition,

the

2001

computer

is

designed

to

be

mounted

in

a

19

11

RETMA

rack.

It

features

positive

pressure.

filtered

airflow,

a

separate

compartment

for

circuit

cards.

and

up

to

three

shock

mounted

disk

drives.

The

2003

computer

is

a

smaller

benchtop

or

wall

mounted

computer

for

more

specialized

applications.

It

typically

has

a

hard

disk

and/or

one

floppy

disk.

A

portable,

sometimes

used

in

industrial

diskettes.

self

contained

floppy

disk

drive

is

with

this

computer

when

it

is

installed

environments

not

suitable

for

floppy

Preliminary

AT

Users

Manual

1

11/26/86

The

2004

computer

features

NEMA

4

packaging

and

electronics

contained

in

a

sealed

compartment

cooled

by

a

unique

moving

air

heat

exchanger.

1.3

B286

Specifications

The

B286

CPU

is

a

high

performance

IBM

AT

compatible

6

layer

CPU

card

featuring

the

following:

-

Up

to

1

Megabyte

of

parity

checked

DRAM

memory

-

Switchable

clock:

6

and

8

or

optional

6

and

10

MHz

-

On-board

battery

supports

real

time

clock

-

80287

Co-processor

socket

-

Proprietary

Bios

with

built-in

"setup"

program

-

External

reset

switch

and

speaker

Jack

Rather

than

mount

horizontally

in

the the

bottom

of

the

computer.

(as

with

a

typical

motherboard

computer)

the

B286

plugs

into

a

passive

horizontal

motherboard.

If

replacement

is

required,

the

board

can

be

removed

and

replaced

as

easily

as

any

expansion

card.

There

is

no

need

to

disconnect

any

cables

or

remove

any

other

boards.

Preliminary

AT

Users

Manual

2

11/26/86

2.

CONFIGURATION

AND

INSTALLATION

This

section

describes

rack

mounting

of

the

2001

computer,

cabling,

and

expansion

module

installation

and

removal.

2.1

Rack

Mounting

The

2001

computer

and

CRT

display

models

1003R, 1004R,

and

1005R

are

designed

to

be

mounted

in

a

19-inch

RETMA

rack

with

ChassisTrak

300-S-120

slides.

Equivalent

slides

from

other

manufacturers

that

have

matching

hole

spacing

and

alignment

may

also

be

used.

The

steps

for

attaching

slides

to

the

displays

and

the

computer

are

the

same.

Mounting

hardware

is

supplied

with

the.

slides.

9~YI!Q~

DO

NOT

attempt

to

mount

the

computer

or

display

by

attaching

these

units

from

the

front

panel

only.

SLIDE

MOUNTING

INSTRUCTIONS

1.

Two

slides

are

required

for

each

chaasis,

one

on

each

side.

Separate

each

slide

into

two

parts.

2.

Select

the

slide

parts

that

have

a

hole

pattern

matching

the

threaded

holes

on

the

computer.

Using

screws

provided,

attach

a

slide

to

right

and

left

sides

of

the

computer

chassis

(5

screws

on

each

side,

the

spring

loaded

stop

mounts

to

the

rear

of

the

computer).

3.

Attach

the

second

part

of

the

slides

to

the

19-

inch

rack.

Position

the

slides

on

the

left

and

right

sides

of

the

rack

and

screw

each

end

of

the

slide

into

the

rack.

4.

Insert

the

computer

into

the

rack

by

mating

the

computer

slides

with

the

rack

slides.

Make

sure

that

the

computer

is

level

and

properly

aligned

when

it

slides

onto

the

rack.

5.

Push

the

computer

completely

onto

the

rack.

Secure

the

computer

front

panel

into

the

rack

using

4

screws

(8

screws

on

monitors).

6.

Repeat

this

procedure

to

rack

mount

the

CRT

display.

Preliminary

AT

Users

Manual

3

11/26/86

2.2

Cable

Connections

Before

connecting

the

computer

to

a

power

source,

connect

the

CRT

display

and

keyboard

to

the

computer.

If

the

computer

is

to

be

rack

mounted,

refer

to

the

slide

and

rack

mounting

instructions

before

connecting

cables.

2.2.1

Power

Connections

and

Operating

Voltages

The

2001A

rack

mountable

computer

is

capable

of

powering

two

devices

plugged

into

two

external

AC

receptacles

on

the

rear.

The

combined

current

handling

capability

of

the

two

receptacles

is

approximately

6

amps.

The

total

current

drawn

by

a

fully

loaded

unit

including

the

computer

with

a

full

set

of

circuit

cards

and

6

amps

on

external

devices

is

10

amps.

The

2003A

and

2004A

draw

approximately

configured.

computers

are

self

contained

and

4

amps

of

current

when

fully

The

2000

Series

Computers

can

be

modified

at

the

factory

to

operate

using

220-volt

AC

power

or

various

DC

power

voltages.

The

following

considerations

apply

with

this

modification:

l)the

fan

is

replaced

to

operate

properly

with

the

selected

input

power

selected;

2)fuses

are

replaced;

3)the

power

supply

is

Jumper

selected

for

220

volts

or

replaced

with

the

correct

DC

modules.

It

should

be

noted

that

special

considerations

may

be

necessary

to

select

CRT

monitors

for

non

standard

power

situations.

2.2.2

Keyboard

Connections

Both

the

AT

and

XT

keyboard

five-pin

connectors

are

identical

for

all

2000

Series

computers.

The

XT

key-

board

is

specifically

designed

for

the

XT

computer

and

do

••

not

operate

properly

with

an

AT

model.

However,

a

Jumper

.'odification

inside

the

AT

keyboard

allows

it

to

be

downward

compatible

and

to

operate

as

an

XT

keyboard.

Identification

part

numbers

are

placed

on

the

underside

of

each

keyboard.

On

the

2001A

computer,

the

keyboard

connector

is

at

the

lower

left

corner

of

the

front

panel~

For

applications

which

require

it,

a

rear

mounted

keyboard

connector

is

available

as

an

option.

On

the

2003

computer,

the

keyboard

connector

is

at

the

lower

right

corner

at

the

back

of

the

computer.

Preliminary

AT

Users

Manual

4

11/26/86

2.2.3

CRT

Display

Connections

On

the

2001A

computer

the

CRT

display

power

cable

can

be

plugged

into

the

computer

auxiliary

power

outlet.

The

signal

cable

connects

the

Crt

to

the

video

card

connector

at

the

back

o£

the

computer.

When

connected

to

the

auxiliary

outlet,

power

is

supplied

to

the

CRT

display

as

soon

as

the

computer

is

powered-up.

The

2003A

computer

outlets.

There£ore,

plugged

into

a

local

connects

to

the

video

computer.

does

not

have

auxiliary

power

the

display

power

cable

should

be

outlet.

The

display

sig~al

cable

card

connector

at

the

back

o£

the

2.2.4

External

Speaker

Jack

An

external

speaker

Jack

is

standard

on

the

AT

computer

and

optional

on

the

XT

computer.

The

speaker

Jack,

provides

the

capability

£or

audio

output

to

an

external

alarm

or

public

address

system.

The

speaker

Jack

is

located

on

the

CPU

card

at

the

back

o£

the

computer.

2.3

Installing

Modular

Options

The

2000a

Series

Computer

design

provides

£or

easy

access

to

add

or

upgrade

the

system.

Each

computer

is

slightly

di££erent.

The

steps

to

access

cards

£or

each

computer

are

described

in

the

£ollowing

paragraphs.

HQIg

All

captive

nuts

used

in

the

2000

Series

Computers

are

sel£-locking.

Extra

e££ort

may

be

required

to

loosen

or

tighten

the

screws

during

installation.

2.3.1

Accessing

Cards

in

the

2001

Computer

1.

Power-down

the

computer.

2.

Remove

the

3

screws

£rom

the

hinged

access

panel

on

top.

Remove

the

hinged

access

panel

(note

the

position

o£

the

access

panel

hinge

tabs)

and

place

the

screws

and

the

panel

in

a

convenient

place.

3.

Unscrew

and

remove

the

hold-down

clamp

that

£its

across

the

circuit

boards.

4.

To

install

circuit

cards,

instructions

£or

the

card

Section

4).

In

addition,

instructions

that

come

with

Preliminary

AT

Users

Manual

re£er

to

the

speci£ic

to

be

'installed

(see

read

any

installation

the

option

purchased.

5

11/26/86

2.3.2

Accessing

Circuit

Cards

in

the

2003

Computer

1.

Power-down

the

computer.

2.

Remove

the

4

screws

on

each

side

o£

the

top

cover.

Remove

the

top

cover

and

place

the

screws

and

the

cover

in

a

convenient

place.

3.

Unscrew

and

remove

the

hold-down

clamp

that

£its

across

the

circuit

boards.

4.

To

install

circuit

cards,

re£er

to

the

speci£ic

instructions

£or

the

card

to

be

installed

(see

Section

4).

In

addit~on,

read

any

installation

instructions

that

come

with

the

option

purchased.

2.3.3

Accessing

Circuit

Cards

in

the

2004

Computer

1.

Power-down

the

Computer.

2.

Open

the

outer

door.

3.

Unscrew

the

two

thumb

screws

at

the

top

o£

the

inside

chassis.

4.

Insure

adequate

service

loop

is

available

£or

all

cables

and

then

swing

out

(down)

the

inner

chassis.

5.

Unscrew

and

remove

the

hold-down

clamp

that

£its

across

the

circuit

cards.

6.

To

install

circuit

cards,

re£er

to

the

speci£ic

inatructions

£or

the

card

to

be

installed

(see

Section

4).

In

addition,

read

any

installation

instructions

that

come

with

the

option

purchased.

2.3.4

Expansion

Slot

Con£iguration

The

2000

Series

AT

computer

has

£ive

8-bit

and

£ive

16-

bit

expansion

slots.

Viewing

the

back

o£

the

computer,

£rom

right

to

le£t,

expansion

slots

1,

2,

3,

9,

and

10

are

the

8-bits

and

slots

4,

5,

6,

7,

and

8

are

16-bits.

Each

8-bit

slot

has

one

62-pin

connector

providing

8

data

bits

and

20

address

lines.

This

con£iguration

is

equivalent

to

an

address

space

o£

1M

byte

that

is

8

bits

wide.

Each

16-bit

slot

has

two

connectors.

A

62-pin

connec-

tor

contains

the

lower

8

data

bits

and

lower

20

address

lines.

A

36-pin

connector

contains

the

upper

8

data

bits

and

upper

4

address

lines.

The

combined

bus

con-

Preliminary

AT

Users

Manual

6

11/26/86

figuration

has

a

capacity

of

16M

bytes

of

address

space

that

is

16

bits

wide.

The

2000

Series

XT

configuration

has

ten

8-bit

expan-

sion

slots.

Each

slot

has

a

62

pin

connector

that

pro-

vides

8

data

bits

and

20

address

lines.

The

AT

16-bit

expansion

cards

are

slightly

(0.6

inches)

taller

than

the

XT

8-bit

expansion

cards.

To

provide

for

a

hold

down

clamp

that

can

accommodate

the

different

height

boards,

the

AT

cards

are

grouped

together

near

the

center

of

the

expansion

slots

2.3.5

Option

Compatibility

Modular

options

are

added

by

means

of

expansion

cards

that

plug

into

the

computer

bus

(expansion

slots).

This

bus

is

designed

to

be

both

electrically

and

mechanically

compatible

with

the

equivalent

International

Business

Machine

computer

models.

On

the

2000

Series

AT

(6MHz

clock

speed)

and

XT

models,

the

bus

timing

is

identical

to

the

IBM

equivalent.

The

AT

computers,

operating

at

8

or

10

MHz,

have

faster

bus

transfer

rates

and

may

not

be

compatible

with

all

expansion

cards.

Although

XT

8-bit

expansion

cards

may

work

electronically

in

the

AT

16-bit

slots,

the

XT

cards

may

not

be

physically

compatible

because

the

AT

has

the

additional

36

pin

connector.

In

addition,

the

AT

16-

bit

cards

are

not

designed

to

work

in

8-bit

slots.

Expansion

card

compatibility

may

also

vary,

depending

on

the

manufacturer.

Processor

clock

speed

differences

may

also

effect

expansion

card

compatibility.

The

2000

Series,

AT,

80286

processor

operates

at

a

much

faster

speed

(6,

8,

or

10

MHz)

than

the

XT

model

8088

processor

speed

(4.77

MHz).

To

accommodate

this

speed

difference,

the

B286

card

contains

a

programmable

wait

state

generator

which

inserts

additional

time

in

the

bus

transfer

cycles.

Refer

to

the

module

section

for

a

detailed

description

of

this

feature.

For

most

plug

in

modules,

the

additional

wait

states

are

all

that

is

required

for

compatibility.

If

a

speed

problem

is

suspected,

contact

the

manufacturer

of

the

plug

in

circuit

card

regarding

operation

at

the

higher

bus

speeds.

Preliminary

AT

Users

Manual

7

11/26/86