Wang 2236 User manual

•

" -'

WANG

CUSTOMER

ENGINEEl{ING

PRODUCT

MAINTENANCE

MANUAL

2236

MXE

TERMINAL

CONTROLLER

(EARLY

FIELD

SUPPORT)

\OTlt'E

..

This

document

and

the

information

it

contain~

are

the

confidential

prop-

erty

of,

and

are

propietary

to,

Wang

Laboratories,

Inc.

This

document

and

the

information

it

contains

may

not be

made

public

without

the

writ-

ten

l'onsent

of

Wang

Laboratories,

Inc.

If

for

any

reason

this

document

is

permitted

by

Wang

to lea\·e

the

physical

custody

of

the

company,

it

is

re-

tunrnble

upon

the

demand

of

Wang

Laboratories,

Inc."

JULV1982

REORDER NUMBER

729-1147

•

223h

~!XE

7f:R'11

NAL

C:ONTROLLER

ROARIJ

(EARLY

FIF.LO

SUPPORT)

•

2~36

MXE

TERMINAL

CONTROLLER

TABLE

OF

CONTENTS

Section

1

Introduction

1.1

Scope

1.2

Descriptinn

1.3

1.4

Mnrlel

223h

MXE

Specificati0ns

Section

2

Installation

2. 1

Inspection

')

Interconnect

ion

-.-

2. 2. 1 Baud

Rate

Switch

Settings

')

....

-.

·-

2.

3

2.

1.

1

2.3.1.1

2.1.1.2

2.4

2.

5

2 .5

.1

~.

5.

2

~.5.2.1

2.5.2.2

2.5.2.3

2.5.2.4

2.5.2.s

2.5.2.6

2.5.2.7

2.5.2.s

2.6

Section

3

Ope

rat

ion

Device

Address

Switch

Set

tings

Installation

( f 2236

MXE

Board

Wang

Terminal

To

MXE

Controller

Direct

Connect

ton

Cables

RS-232-C

Compatible

Modem

Cables

Initial

Turn-On

Loading

the

MXE

Command

Codes

Command

Descriptions

Commands

I

H'

(HELP)

All

Comrr.and

Codes

I? I

Status

'A'

Set

Primary

User

'BI

Set

Baud

Ri1

te

'C'

Set

Password

'D'

Download

Code

I

J'

Restart

'LI

Lock

Voltage

Checks

3.1

Led

Indications

3.2

Loading

Software

Section

4

Theory

of

Operations

4.1

Overall

System

Block

Diagram

Interface

4.2

Detailed

System

Function

(to

be

supplied)

4.3

Chip

Level

(to

be

supplied)

i.

TABLE

OF

CONTENTS

(cont

i nut>d)

Section

5

Maintenance

5.1

Introduction

5.2

5.3

5.4

5.4.1

5.4.2

5.4.2.1

5.!h2.2

5.4.2.3

5.4.2.4

5.4.3

5.4.3.1

5.4.3.2

5.4.4

5.4.4.1

5.4.4.2

Section

6

Preventive

Maintenance

Disassembly

and

Replacement

Troubleshooting

Power-Up

Diagnostics

For

2236

MXE

Boarrl

Troubleshooting

Command

Codes

'E'

Analog

Loop-Back

'F'

Digital

Loop-Back

'G'

Print

To

All

Screens

'I'

Memory

Test

Model

WA3451

Modem

Operation

Controls

and

Indicators

Table

5-1

Controls

and

Indicators

ITS-1

EIA

Interface

Test

Set

EIA

Interface

Test

Set

Specifications

Funtional

Description

Digital

Interface

Bill

of

Materials

Section

7

Appendlcies

A.

Schema

tics

B. RS-232-C Loop Back

Plug

Wiring

Diagram

ii.

•

"'1

~

OQ

~

c

....

'1

(1)

......

•

. -

.....

PORT4

• •

2236

MXE

II

,

..

,

.1:.

~·.:.-

r·

iJ

c·

\\ •

•••

PORT3

PORT2

PORT1

-

•

SECTION

I

INTRODUCTION

1.

1

~;CGPE

This

manual

provides

the

C:ustor.;;::;:-

Engineer

with

information

TH't>ded

to

install,

operate,

and

troubleshoot

the

2236

~~E

Terminal

Multiplexer.

1.

2

or:scR

I

PTT

ON

The Model 2236

MXC

Terminal

Controller

is

an

intelligent

Z-80

based

terminal

controller

for

2200

MVP

and 2200

LVP

Central

Processing

U1its

(CPU's).

This

device

controls

I/O

operations

between

the

CPU

and

the

terminals,

and

buffers

data

entered

from

or

transferred

to

the

terminal.

Each Model 2236

MXE

supports

four

Model

terminals

concurrently,

in

any

combination.

terminal

control

funtions

normally

executed

CPU

for

processing.

22360,

2236DE,

2236DW

and

2336DW

The 2236

MXE

performs

may

by

the

CPU,

thereby

freeing

the

The Model 2236

MXE

software

is

loaded

into

48K

of

Random

Access

Memory(RAM)

from a 2200

CPU.

This

allows

the

Model 2236

~XE

to

perform

a

variety

of

additional

funtions,

and

provides

a

conveient

mechanism

for

future

device

enhancements.

Tie

MXE

also

conta1ns

8K

of

PROM

for

oootstrap

and power up

diagnostics.

Other

features

of

the

Model 2236

MXE

include

software

and

hardware

slectable

transmission

rates,

software

selectable

terminal

ports,

a

time

of

day

clock,

and

ability

to

alert

the

2200

CPU

when a

local

or

remote

terminal

connects

or

disconnects.

Additionally,

the

MXE

can

perform

diagnostic

tests,

enabling

it

to

test

the

board

components,

RAM

parity,

and

local

and

remote

moderns.

The 2236

MXE

Terminal

Multiplexer

is

an

enhanced

controller

for

all

asynchronous

terminals

attached

to

the

2200

MVP

and

LVP

computers.

It

is

downward

compatible

with

the

2236

MXD

Terminal

Controller.

The

MXE

is

an

enhanced

version

of

the

MXD

in

which

four

terminals

or

moderns

are

rnul-tiplexed

on

the

2200

I/O

bus.

A

detailed

list

of

new

MXE

enhancements

are

as

follows:

a.

Full

modern

support

for

each

of

four

RS-232

Interface

connectors.

b.

An

activity

time

out

circuit

for

the

RS-232

interface

to

support

European

moderns

through

automatic

disconnect

•

c.

"Time

of

Day"

clock

circuitry,

(optlonal

battery

back-up).

1-1

----·---------------------------------

cl.

Tlw

haud

rate

~an

hP

selected

for

each

tt•rminal

by

iwtting

switches

or

software

select.ablP.

e.

A 4-Mhz, Z-80A

Microprocessor

has1!d

CPU.

f.

RAM

sizt•

up

to

48K,

permits

downline

loading

of

microcodt•

and

aJ_lows

intl•rface

capabilities

to

non-Wang

terminals.

g.

An

HK

on-board

prom

provides

for

h(Jotstrap

functions,

power

up

diagnostics,

and

remote

diagnostics

capabilities.

h.

All

four

channl'ls

havt•

the

control

circuitry

to

perform

a

software

controled

local

analog

loopback,

and

the

remote

digital

lonphack

test.

This

test

will

only

work

on

Wang-(Vadic)

WA3451

modems.

i.

.A

software

selectable

local

digital

loopback

capability

at

the

DART

chip

for

each

port.

j.

Motherboard

and

Daughterboard

combination.

k.

The

capacity

to

set

any

terminal

as

the

Primary

User.

1.3

Refer

to

for

further

details

on

Error

Detection

Codes and

Detailed

Fault

Diagnostic

tests.

1.4

SPECIFICATIONS

The

following

sections

provide

the

specifications

on

the

2236

MXE

Board.

a.

Operating

Environment

Same

as

the

CPU

-

b.

Power

Requirments

Supplied

by

the

CPU

c.

1/0

Slots

Required

One

(option

up

to

three)

d.

Wang

Terminal

Format

Communications

Mode:

Asynchronous,

full-duplex

Character

Format:

1

start

bit,

1

stop

bit,

8

data

bits,

1 odd

parity

bit

Transmission

Rate:

SO,

110,

134.S,

300,

600,

1200,

2400,

4800,

9600,

or

19,200

bps

1-2

•

• *

*

•

e.

Asynchronous

Mode

f

••

MXE

g.

MXE

h.

New

Communfrations

Mode:

Asynchronous,

full-duplex,

half-duplex

Character

Format:

1

std

rt

bit,

1,

1.

5,

2

stop

hit,

7

or

8

data

hits,

even

or

odd

parity

Trr.nsmission

Rate:

SO,

110,

134.5,

300,

600,

1200, 2400,

4800,

9600,

or

19,200

bps

Motherboard

(210-7874-A)

Dimension

11.

54"

length

x 7

.o"

height

Daughterboard

(210-7973-A)

Dimension

11.

02"

length

x

6.

3"

height

Faceplate

(no

Wang

P/N)

Dimension

14.00"

length

x

1.18"

height

RS-232

Ports

4

LED

1

i.

Voltage

Requirements

on

Mother/Daughter

Boards

Mother

(210-7874-A)

+SVR,

+12V,

-12v,

+ov

Daughter

(210-7973-A)

+SVR,

+12V,

-12V,

+ov

*

NOTE-··When

ordering

the

2236

MXE

board

the

mother

and

daughter

boards

are

always

attached,

becoming

the

complete

2236

MXE

board.

You

must

order

the

entire

board,

the

part

number

for

the

2236

MXE

is

as

follows:

Model 2236 MXE----Wang P/N

212-3032

1-3

....

.

Z80A

DART

~'A

L9

LI

L7

L6

--

-

~

-

~

.

~~1

\I

eCIMl.

'·

.,.

•

L1

2

LI

1

Lii

!

...

~

CV

-

....

L23

J

L22

J

~

•

• '

N.

-"

L26

:L'-5

L24

'J

~-'!

~

....

...,

. -

...

,...

.--

.,,

•.

CD

,..,

,.,

N

,..,

..J

....

.J

_,

,.,

"

,,,

._,

..J

,.,

L

.J&

_,

Nii~

-lll"V

.-

-

...

..

~

n

l"

•

.,,

in

_,

..

n-

....

•

4'1

..J

_,

....

1

...

~

_,

I

to'I;'

~

.......

-.a·

...

-

-f~'

b)

L.62

L.61

l

''

qJ_I

i

,I •

i!._~

.,,

_._,

_,

ll[EH

I

~

t-...:

••

•••

--

.

.,._

P)

0

••

.J

--

...

L_(~

L......

__

..

L45

L44

ZSOA

CTC

"

,,

l4

n n

..J

....J

l.

-·

I

,,

l

'°

-

,...

...

-

_,

·-

-

.,.

N

• ..J

.·

-

,.,

..J

.J

...

r

...:

.,,

.-.

...

_,

•

->

•

M~E

MOTHER

pcw10-

787

4

....

,...

,.

<._,-.'

•

..

•

_J

"'"'~

w·.:

'·

L

.~

..

,

..

L ,

L 2 7

SWITCH

1

DEVICE

ADDRESS

SWITCH

2

PORTS

3&

4

BAUD

RATE

SWITCH

3

PORTS 1 &2

BAUD

RATE •

• I

L13

TO

L5

64X

1

MEMORY •

POWER-UP

DIAGNOSTIC PROMS

MXE DAUGHTER PCB

210-

7973

.

~I

11~:

·1

•

L17

ZSOA

CPU

---

----------------------

-

•

..

•

SECTION

2

INSTALLATION

2

.1

INSPECTION

Before

installing

any

MXE

board

inspect

the

board

for

any

broken

components

and make

sure

all

plugable

chips

are

seated

properly

in

their

sockets.

Check

for

bent

pins

on

the

plugable

sockets.

2.2

INTERCONNECTION

There

are

three

sets

of

switches

connected

to

the

Mother

board

(210-7874-A).

Two

switches

are

8-bank

type

and one

is

a

4-bank

type.

The two

8-bank

type

switches

are

use

to

set

the

baud

rate

for

each

of

the

RS-232

Port

connectors.

The one

4-bank

switch

is

used

for

setting

the

device

type.

Set·

the

8-bank

switches

to

whatever

baud

rate

desired.

The

following

is

a

list

of

desired

baud

rate

and

device

type

settings:

2.2.l

BAUD

RA::'E

SWITCH

SETTINGS

Refer

to

Figure

2-1

•

2.2.2

DEVICE

7YPE

SETTING

Refer

to

Figure

2-2

.

2-1

----------------------------------

2236

MXE

HARDWARE

SWITCH

SETTINGS

[\

BA

uD /l--

____

SW_IT..-C_H_3

____

..__

___

S_W_l~T_C_H_2

___

_

~

RA

TE

L PORT 1 PORT 2 PORT 3 PORT 4

--r~-T~~~--r-~--r-~--1-~-.-~-.-~-.-~~

DEC

BAUD

RATE

HEX

1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8

0

110

0 OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF

!----·

1

134.5

1 ON OFF OFF OFF ON OFF OFF OFF ON OFF OFF OFF ON OFF OFF OFF

------+----·----·-·-·----·-

··-----·--

·---··----

-----t-------

----

t-·-

..

-···-

------

-------

t-------i ·---

----·---

..

------

---·

-·. ' -

-··-

-

--

.

--

···-·-

----+-

-

..

·----1

2

150

2 OFF ON OFF OFF OFF ON OFF OFF OFF ON OFF OFF OFF ON OFF OFF

t------t-------····

-

·-··--·---+---··---·-------+--------

----···

--------------

·-·--·

---·--

-----

-·------

-----

··------

-

·-----

------+-----

3

200

3

ON

ON OFF OFF ON ON OFF OFF ON ON OFF OFF ON ON OFF OFF

t------+------

···--·-

-·-----

...

·-----

---

-·

...

-····

-----.

··-·-----+---··--·····

----·--

t---

-··

-·-j

---+----··--t----··-·-

-····---·--

.......

---

···-·----

-

-··--·-··t·

-·------

··-··--

-·-

---

4

300

4 OFF OFF

ON

OFF OFF OFF ON OFF OFF OFF ON OFF OFF OFF ON OFF

t---·

t------

·------·-

---·--·

---

·--·

. ··-···

-··-

---------

------·--<

---------

-----

+----·--·-

·---

----·---!------

-

·--···---<-------!

-----+--··--·-

·---

..

···-+----

5

600

5

ON

,OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF

---

··--+---·----t

-----+-----+--

---+-----+---·>---+-----t-----+------o----+----+----+------11

6

1200

6 OFF ON ON OFF OFF ON ON OFF OFF ON ON OFF OFF ON ON OFF

-----+---·---------·-

----

--··--

---·

···---

------··

---

·------

---

.

·--1-----·

-·

--·-·-

--·----··

··-

------1--

---------------

·-·-···---··

------

·-

1----

---< -

-··--·-

·-·

.

-----+---

:~

t-7

UN~~~N~~1-_?--+---0N

o~-+--~~--t-~~~+-0-~

-

o~_

ON OFF

o~_

ON

t---~~-

OFF 1--0N ON

_____

()N_+EFF

8

2400

8 OFF OFF OFF ON OFF OFF OFF ON OFF OFF OFF ON OFF OFF OFF ON

g-uNoE_F.,-NED-

--

9-

t--a-Nl

oFl=-oF-F:o·N

t---ON-

OFF OFF

oN

-01=1=-t-ar=F

oN

oN--oFF

o~ON

"~!>t~~iao~

--

~-_A_~

QFl'j

ON_\ OFF_

ON

OFF

ON~~F~

ON

~O_F~()N

_

OFF

ON,

O~F

ON

OFF

ON

13 I

19,200

0

ON

IOFF ON ON ON OFF ON ON ON OFF ON ON ON OFF 01'! ON

T

--

------r---1-

I

--

---

!------+--

----+------+-·

~-L

.....

-J

__

_,tl

___

.

___

}+J_I

_~

~+J+---~

_J

~

BINARY

1 2 4 8 1 2 4 8 1 2 4 1 2 4 8

HJ\l'll

RATE

SWITC:ll

SI:TrI.~l.S

• • •

-

--~

---------------,

•

SWITCH

BANK

1

-

MXE

DEVICE

• ADDRESS SWITCH SETTING

HEX

#OF

SW-1

SW-2

SW-3 SW-4

MXE

00

1ST

OFF OFF OFF OFF

40

2ND ON OFF OFF OFF

80

3RD OFF

ON

OFF OFF

-;;:

'v

7

NOT USED

DEVICE

TYPE

SWITCH

SETTING

• 2-3

2.3

INSTALLING

MXE

BOARD

Afll•r

inspecting

and

setting

all

swilch~s

eorn•ctly,

the

MXE

hoard

is

ready

to

he

installed.

If

you

are

upgrading

from

a

MXD

to

a

MXE

the

following

steps

are

to

he

taken:

a.

Turn

JHJWL'r

OFF

on

the

systL•m.

h.

Remove

all

dirl'ct

connect

cahl1•s

or

RS-232

eahll•

con1wctors

from

the

MXD

hoard.

c.

Remove

the

MXD

board.

d.

Before

inserting

tht•

MXE

board

make

sure

the

device

nddress

and

all

baud

rate

settings

are

correct.

e.

Insert

the

New

MXE

hoard

in

thl'

same

slot

as

the

MXD.

t.

Reconnect

the

RS-232

cable

connectors

to

their

respect~d

port

locations.

g.

Make

sure

MXE

hoard

is

seated

properly

and

screw

down

a1;

RS-232

connectors

to

ensure

proper

seating.

2 •

'3

.1

WANG

TERMINAL

TO

MXE

CONTROLLER

TNTERFACE

Each

terminal

can

either

be

attached

locally

to

the

Model

2236

MXE

Terminal

Controller

at

distances

ranging

up

to

2,000

feet

or

rem0tely

.

using

modems

and

standard

four-wire

communications

lines

(R:~-232-C).

Communication

between

the

terminal

and

the

Model

22'36

MXE

Terminal

Processor

is

asynchronous

and

full-duplex,

with

selectable

line

spl•eds

ranging

from

50

to

19,200

bits

per

second

(bps).

The

four

ports

on

the

MXE

are

25-·pin,

RS-232-C

compatible.

A

local

cable

connection

between

the

Model

2236

MXE

and

a

terminal

is

less

than

25

feet.

For

cable

distances

from

25

feet

to

2,000

feet,

optional

direct

connection

cahle

are

availahle.

For

cable

distances

beyond

2,000

feet,

two

asychronous

full-duplex,

11

hit,

RS-232-C

compatible

modems

per

terminal

must

be

llst>d

lo

provide

the

communi.ca t

ion

1

ink

over

switched

1i

nes.

One

modl•m

is

connected

to

a

port

on

the

terminal

processor;

the

other

is

connected

to

a

terminal.

The

Wang

Model

WA'3l151

Asychronous/Synchronous

Modem,

which

is

compatible

with

Wang

Model

2236D

and

DE

termi.nals,

is

tl1e

recommended

modem

for

switched

remote

connection

of

these

term1nal

to

2200LVP

or

MVP

systems.

Cable

is

optionally

availahle

for

modem

connections

to

Wang

equipment

in

lengths

of

12

feet,

25

feet

and

50

feet.

Two

lenghts

of

modem

cahle

for

each

terminal

connection

provide

the

necessary

link

between

the

terminal

processor

and

its

modem,

and

between

the

terminal

and

1ts

modem.

2-4

•

;

•

..

•

2.3.1.1

Direct

Connection

Cahles

Length

Part

Number

Length

Part

Number

Length

Part

Number

2S

feet

120-2236-

2S

soo

feet

120-2236-S

1000

feet

12-2236-10

so

feet

120-2236-SO 600

feet

120-2236-6

12SO

feet

12-2236-11

100

feet

120-2236-1

700

feet

120-2236-7

1500

feet

12-2236-12

200

feet

120-2236-2

800

feet

120-2236-8

17SO

feet

12-2236-13

300

feet

120-2236-3

900

feet

120-2236-9

2000

feet

12-2236-14

400

feet

120-2236-4

2.3.1.2

RS-232-C

Compatible

Modem

Cables

Length

Part

Number

12

feet

220-0113

25

feet

220-0219

so

feet

220-0220

2.4

INITIAL

TURN-ON

The

MXE

board

is

equiped

with

a

pbwer-up

diagnostic.

It

checks

thE·

majority

of

the

MXE

Hardware

prior

to

passing

control

to

the

firmware.

The

power-up

diagnostic

run

time

is

approximately

6

seconds.

The

LED

at

the

top

of

the

MXE

board

indicates

a

GO

or

NO

GO

diagnostic

condition.

On

initial

turn-on

the

LED

will

turn

ON.

If

the

Power-Diagnostic

finds

no

fault

in

the

hardware,

then

the

LED

will

turn

OFF

in

approximately

6

seconds.

If

the

LED

stays

ON

after

6

seconds,

then

there

is

a

problem

in

the

hardware

of

the

MXE

board.

At

this

time

you would

refer

to

the

troubleshooting

section

of

this

manual.

The

LED

turns

off

and

varifies

that

the

hardware

test

portion

of

the

MXE

has

successfully

been

completed.

The

terminals

connected

to

ports

1

through

4

of

the

MXE

board

should

prompt

like

the

following:

2236DE

ROl

19200BPS 8+0

(USA)

This

prompt

is

called

the

self-identification

message

and

consists

of

several

fields

separated

by

spaces.

The

followingt

is

a

brief

description

of

the

self-identification

message:

2236DE

ROl

19200BPS

is

the

model number,

preceded

by

an

asterisk.

is

the

revision

number

of

terminal

firmware

preceded

by R•

is

the

data

rate,

followed

by BPS.

2-S

8+0

(USA)

is

the

number

of

data

bits

(7

or

8);

E

is

even

parity,

0

is

odd

parity,

N

is

no

parity.

is

the

version

of

the

keyboard

and

CRT

character

set,

enclosed

in

parenthesis.

Type

in

'RESET'

once,

the

pompt

should

look

like:

KEY

SF'?

2.5

LOADING

MXE

COMMAND

CODE

The Model 2236

MXE

responds

to

certain

user

commands by

entering

a

''Command

Mode".

By

using

this

feature,

the

user

can

set

both

the

transmission

rate

and which

port

is

to

perform

as

Terminal

1 on

the

system

by means

of

the

software

alone,

without

manually

resetting

any

switches.

Command

mode

can

be

used

to

set

a

system

password,

to

print

a

message

on

all

terminals

connected

to

the

Model 2236

MXE,

to

test

the

memory

in

the

RAM

of

the

board,

to

restart

the

power on

diagnostics,

to

lock

the

current

transmission

rate

of

the

port

issuing

the

command, and

to

list

all

possible

commands.

Command

mode

can

also

be

used

to

test

particular

ports

on

the

Model 2236

MXE.

All

command

mode

statements

are

password

protected

so

that

only

a

privileged

user

has

access

•

To

enter

the

MXE

command

code

press

the

"LOAD"

key

three

times

(do

not

type

LOAD).

After

pressing

LOAD

three

times

the

prompt on

the

screen

will

display

"ENTER

MXE

COMMAND:"

followed

by

a

new

line

of

"%".

The

user

should

then

enter

the

desired

MXE

command. A

description

of

the

commands and

how

to

enter

the

commands

will

follow.

The

MXE

will

process

the

command

and prompt

for

another

command

until

a

blank

line

is

entered

thus

putting

the

user

back

in

the

MXE

command

should

not

be

entered

until

the

MXE

prompts

for

it.

Any

terminal

may

enter

MXE

COMMAND

MODE

at

ANY

Umc.

If

the

2200

is

printing

to

the

screen

during

MXE

command

mode

the

2200

output

will

be

temporarily

suspended

to

prevent

the

two

outputs

becoming

intermixed!

2.5.1

COM.i~AND

DESCRIPTIONS

In

the

command

descriptions

that

follow,

use

these

definitions:

The

command

(the

default

'psw'

is

a

six

character

password

containing

no

blanks,

is

'MXEPSW'

).

2-6

•

..

•

,.

•

..

•

The

command

'port

designator'

is

a one

character

designator

that

is

as

follows:

O=The

port

at

which

the

command

is

being

typed

(this

is

so

that

the

user

need

not

know

which

port

s/he

is

connected

to),

and

1,

2,

3,

4

are

the

absolute

MXE

nnrt

addresses.

All

commands

begin

with

a

ONE

character

command

code.

Most commands

then

have

a

six

character

password,

which

is

the

MXE

password

(similar

in

use

to

the

2200

system

password)

followed

by

any

needed

parameters

in

the

order

specified

below.

The

user

can

always

type

help

(while

in

MXE

command

mode)

L~

obtain

a

list

of

command

codes.

The

command

line

is

divided

into

differeut

fields.

The

first

field

is

a

~character

field,

that

states

the

program

or

command

to

be

run.

The

second

field

is

a

six

character

field

that

contains

the

desired

password

for

the

MXE

command.

NOTE--The

password

will

not

be

printed

on

the

screen.

Instead,

the

MXE

will

print

the

numbers 0

through

S

as

characters

are

typed

s.o

that

the

password

can

be

protected.

The

third

field

is

used

for

setting

the

desired

command

such

as

the

'port

designator',

'baud

rate',

'new

password'

and

other

commands.

On

initial

turn-on

the

password

default

is

'MXEPSW'.

2.5.2

COMMANDS

This

section

covers

the

commands and

step

by

step

procedure

for

entering

the

proper

commands.

There

are

two

command

modes

that

are

very

important

to

aid

the

C.E.

in

setting

up a 2236

MXE

board.

The

first

important

command

mode

is

'H'

(HELP).

This

command

allows

you

to

see

all

the

command

code

letters

and

definitions.

Proceed

with

the

following

steps

to

enter

the

'H'

(HELP)

command

code:

2.5.2.1

'H'

(HELP)

ALL

COMMAND

CODES

Steps:

1.

2.

Type

Return

Example:

%H

'H'

2-7

2.s.2.1

'H'

continued

CRT

DISPLAYS:

A

Set

VP

user

B

Set

Baud

Rate

c

Set

psw

D Download

* E Analog Loopback

* F

Digital

Loopback

* G

Print

H Help

* I

Ram

Test

J

Restart

L Lock

?

Status

* NOTE--Refer

to

Troubleshooting

Section

S.4.1

for

these

2236

MXE

Command

Codes.

The second

important

command

code

is

'?'

(Status).

'?'

shows

the

status

of

all

ports

on

the

2236

MXE

board.

In

detail

it

shows

the

following:

'ON'

or

'OFF'

line

condition;

'Software

Baud

Rate'

'L'(Lock);

'(Hardware

Baud

Rate)';

'Local'

or

'Remote';

'Wang

Terminal'.

Proceed

with

the

following

steps

to

enter

the

?

(Status)

command

code:

2.s.2.2

'?'(STATUS)

Steps:

1.

Type

I?

I

2.

Return

Example:

%?

CRT

DISPLAYS:

2236

MXE

RO

(BOOTSTRAP)

*

PORT

1

ON

19200 L I (19200)

LOCAL

PORT

2

OFF

19200 I

(19200)

LOCAL

PORT

3

OFF

19200 I (19200)

LOCAL

PORT

4

OFF

19200 I (19L.u0)

LOCAL

SOFTWARE

NOTE

*-Indicates

the

Primary

2.S.2.3

'A'

SET

PRIMARY

USER

Steps:

1.

Type

2.

Password(psw),

type

3.

Port

Designator,

type

4.

Return

Example:

%AM012345

I

(HARDWARE)

User.

2-8

'A'

'MXEPSW'

'X'

WANG

TERMINAL

WANG

TERMINAL

WANG

TERMINAL

WANG

TERMINAL

(any

6

characters)

(ports

1

through

4)

•

...

•

Wang 2236 User manual

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