Tektronix CT 8101 User manual

TEKTRONIX
( R
CT
8101
PRINTING TERMINAL
USER’S
Tektronix
,
Inc.
P.O. Box
500
Beavert on , Oregon
97077 Serial
Num ber
070-2360-00
First Print ing MAY 1977

WARRANTY
The
8002 uProcessor
Lab
Syst em
( including
options
) is
warranted
against
defect ive
m at erials and
workm anship
under norm al use and
service for
a peri od
of 90 days
from dat e
of
initial shipm ent
.
CRTs
found to be defect ive within 12 m ont hs from the dat e of shipm ent
will be
exchanged
at no
charge ( this
does not
include
installat ion ) .
On sit e
warranty
repair is
provided
during
norm al
working
hours
( for the
90 - day
peri od
) . Travel
to the
sit e is
confined
to
those
areas in
which Tekt ronix
st at es it has
service
facilit ies
available for
this
product
.
Tekt ronix shall be under no obligation to furnish warranty service if :
a .
At t em pt s to
install ,
repair , or
service the
equi pm ent
are
m ade
by personnel
ot her than
Tekt ronix
service represent at ives
.
b . Modifications
are
m ade
to the
hardware
or
soft ware by
personnel ot her
than
Tekt ronix service
represent at ives
.
c .
Dam age
results
from
connecting the
8002
uProcessor
Lab
Syst em to incom pat ible equi pm ent .
Specifications
and price
change
privileges
reserved .
Copyright  1976 by Texas Inst rum ent s Incorporated , Houston ,
Texas
. All
rights reserved .
The
following
m anual is
prepared by
Texas Inst rum ent s
Incorporated
for the
m odel
743
Electronic
Data
Term inal
and
is
reprinted
by
perm i ssion of
Texas
Inst rum ent s
Incorporated ,
Houston
,
Texas .
Copyright

1977 by
Tekt ronix ,
Inc. All
rights
reserved .
Contents
of
this
publicat ion m ay
not be
reproduced
in any form
without the
perm i ssion of
Tekt ronix
, Inc.
Product s of Tekt ronix , Inc. and its subsidiaries are covered by U.S.
and foreign pat ent s and / or pending pat ent s .
TEKTRONIX
, TEK ,
SCOPE - MOBILE
, TELEQUIPMENT
, and
are regist ered
t radem arks of
Tekt ronix , Inc.
Print ed
in U.S.A.

PREFACE
The TEKTRONIX CT 8101 Print ing Term inal is a light weight elect roni c printing dat a t erm i nal capable of
operat ing at speeds
up to 30
charact ers per
second . The CT
8101
Term inal is built by Texas
Inst rum ent s
Incorporated ,
Houston , Texas
, especially for
Tekt ronix , Inc.
Therefore m ost
of the
inst rum ent
throughout this user’s m anual are to the Internat ional Models 743 and 745 Electronic Data Term inals . In
all correspondence
with
Tekt ronix Inc. ,
regarding the CT 8101
, refer to the CT
8101 rat her than
Model 743
or
745
.
WARRANTY SERVICE
Should your CT
8101
Term inal require service
during the
warranty peri od
, call the
Tekt ronix Field Office
or represent at ive
nearest
you
. Only
Tekt ronix
service personnel will
perform repair
or m ai nt enance
work
under t erm s of the Tekt ronix , Inc. , warranty .
THIS MANUAL
This m anual is
a guide to the
procedures
required to
operat e the TEKTRONIX
CT 8101
Print ing
Term inal .
RELATED
DOCUMENTS
CT 8101 Service Manual
8001 or 8002 UPROCESSOR LAB Syst em Service Manual
8001 or 8002 UPROCESSOR LAB Syst em User’s Manual
CT 8101 Print ing Term inal Users
i

TABLE OF
CONTENTS
Sect ion
Page
INTRODUCTION
About This Manual
General Operat ing Guidelines
1
2
.3
U
Becom ing Fam iliar With The Model 743
Switching The
Term inal On And
Off
Sett ing The Print ing Speed
Sett ing The Term inal To Half- And Full - Duplex
Sett ing The Term inal To On - Line And Local
Loading Paper
Typing On The
Keyboard
5
.5
.5
.6
.6
.7
9
11
.
Operat ing The Model 743 With No Optional Equipm ent
Operat ing The Term inal With An External Device ( ETA )
Term inal
Setup
Operat ion
Operat ing The Model 743 With An External Acoustic Coupler
Term inal
Setup
Operat ion
Operat ing The
Term inal With An
External
Modem
Term inal
Setup
Operat ion With a DAA
12
12
12
12
13
13
13
14
14
15
III
Cleaning And Adjust ing The Model 743
Cleaning The Print head
Cleaning
The
Case
Adjust ing The Print Contrast
Adjust ing The Transm it Level Of The Optional Internal M
16
16
16
17
17 em
IV
18
18
18
19
20
.
Operat ing
The
Model 743 With
Optional
Equipm ent
Operat ing The Term inal With The Optional Internal Modem
Term inal
Setup
Operat ion
Optional Internal Modem And Optional Auxiliary ETA Interface Cable Kit
Operat ing The Term inal With The Optional Internal
Modem And An
External Device

Configurat ion |
Term inal
Setup
Operat ion
Operat ing The Term inal With The Optional Internal
Modem And An External Device  Configurat ion 11
Term inal
Setup
Operat ion
. .
20
20
20
20
21
21
ii
a
CT 8101 Print ing Term inal Users

TABLE OF
CONTENTS (
Concluded
)
Sect ion
Page
Operat ing The Term inal With The Optional Internal
Modem And An External Device  Configurat ion III
Term inal
Setup
Operat ion
To
Com plet e
Com m unicat ions
Operat ing The
Model 743 With
The
Optional Internal
Modem
And An External Acoustic Coupler
Term inal
Setup
Operat ion
22
22
23
24
.
.
25
25
25
V
.
Inst allat ion
No
Optional
Equipm ent
Inst alling The Term inal Using The Standard EIA Interface
Inst alling The
Term inal Using
The Standard
dc -
Current
Loop
Interface
Full
Duplex
Half
Duplex
Optional
Internal
Modem
Inst alling The Term inal With The Optional Internal Modem
Optional Internal Modem And Optional Auxiliary EIA Interface Cable
Inst alling The Term inal With The Optional Internal Modem
And An
External
Device 
Configurat ion
|
Inst alling The
Term inal With The
Optional Internal
Modem
And An External Device  Configurat ion 11
Inst alling The Term inal With The Optional Internal Modem
And An External Device  Configurat ion III
Inst alling The
Term inal
With The
Optional
Internal
Modem
And An
External Acoustic
Coupler
27
27
27
28
28
29
29
29
30
31
31
31
32
VI
Learning More
About The
Controls And
Keyboard
Controls
Keyboard
Special Purpose Keys
Indicat ors
33
33
34
34
36
APPENDIX A
USASCII Code Syst em And Charact er Set
A - 1
APPENDIX B
Equipm ent
Specifications
B - 1
APPENDIX
C
Definit ions
C - 1
CT 8101 Print ing Term inal Users
a
iii

INTRODUCTION
You are
about to learn
how to
operat e the Texas
Inst rum ent s Silent 700
Model
743
Keyboard
Send -
Receive
( KSR
) Data
Term inal
.
Even if you
have no
previous dat a
processing or
dat a
t erm i nal
experience , you
should
find the
Model 743
sim ple
to
operat e
.
What is a
KSR dat a
t erm i nal
? How
does it
differ from a
st andard
typewriter
?
The
difference
between
a
KSR dat a
t erm i nal and a
st andard
typewriter is
the
ability of a dat a
t erm i nal to
generat e codes
through the
keyboard
.
The codes can
be
t ransm i tt ed
to ,
and printed by ,
its
own
printer
and / or
t ransm i tt ed to , and
underst ood by ,
anot her
device
(
dat a
t erm i nal ,
com put er , dat a
logger , CRT ,
etc. ) . The KSR
also
underst ands and prints codes
received from
anot her device .
The code syst em used by the Model 743 is the ASCII Code Syst em and Charact er Set , com m only
called
ASCII (
pronounced " as - key ’’ ) .
The ASCII
Code
Syst em
consist s
of
different
com bi nat ions of
ones and zeros
(
corresponding to
num bers
,
alphabet ic
let ters ,
and sym bols )
which are
com m unicat ed
as digital
signals (
runn
) .
Generally
, a one
is an on signal
and a zero is an
off signal . For
exam ple
,
if you look on page A - 1 , you will notice that a " U " is represent ed by a 1010101 ( b through by ) .
When you depress the U key , the t erm i nal generat es an on off on off on off on . ( Think of a light
swit ch being
flipped
on
and off . )
How are these
digital signals
passed from one
device to anot her ?
If the distance
is not too great
( 50
feet usually is the lim it ) , only cables are necessary and the t erm i nal is said to be hard wired to the
ot her device .
For
exam ple
,
when a dat a
t erm i nal
is used
as a
com put er console , it is
usually hard
wired
to
the
com put er
.
CABLE
DATA TERMINAL
Generat es and underst ands
Digit al Signals
EXTERNAL DEVICE
Underst ands
and
generat es
Digit al Signals
Digit al
Signals
For longer distances , telephone lines often are necessary ; and the digital signals ( ones and zeros ) m ust
be convert ed to analog signals ( ) . The device used to convert digital signals ( com pat ible with
dat a processing equi pm ent ) to analog signals ( com pat ible with t ransm i ssion facilit ies ) and analog to
digital is called a m odem or dat a set . A m odem can be built - into , or be ext ernal to a dat a t erm i nal ,
TELEPHONE LINE
CABLE
CABLE
DATA TERMINAL
Generat es and underst ands
Digit al Signals
ACOUSTIC COUPLER
Digit al Signals
MODEM
Digit al Signals
REMOTE DEVICE
Generat es and underst ands
Digit al Signals
Digit al Signals
Digit al Signals
Analog Signals
Analog Signals
Sound
Analog Signals
CT 8101 Print ing Term inal Users
1

com put er
,
dat a
logger ,
CRT
,
etc .; a
m odem
is
required on
each
end of
the
telephone
line . (
By
the
way ,
if
the
m odem
is
ext ernal to
the
t erm i nal ,
the
t erm i nal is
hard
wired
to
the
m odem
,
and
the
m odem
will be
hard
wired
to
the
telephone
line since
they are
in
close
proxim i ty ;
but the
dat a
t erm i nal
is
not
hard wired
to the
rem ot e
device
since a
telephone
line
separat es
them .
)
Still
anot her
way to
t ransm i t
and receive
dat a
over
telephone
lines is
available
:
that is ,
through
the
use
of
a
st andard
telephone
handset .
However
, if
a
handset
is
used ,
the digital
signals
m ust
first be
convert ed
to
sound ;
then
the sound
is
convert ed to
analog
signals
before
the dat a is
t ransm i tt ed
over
the
telephone
line .
The
device
used
for
this
purpose
is
called
an
acoustic
coupler
.
All
acoustic
couplers
contain
a
m odem
.
An
acoustic
coupler
also
can be
ext ernal
or
internal
(
built - in
) to
a
dat a
t erm i nal
.
TELEPHONE
LINE
CABLE
CABLE
DATA TERMINAL
Generat es and
underst ands
Digit al
Signals
MODEM
Digit al
1
Analog
REMOTE
DEVICE
Underst ands and generat es
Digit al
Signals
Digit al Signals
ACOUSTIC
COUPLER
Digit al
I
Analog
I
Sound
Digit al
Signals
Analog
Signals
The Model
743
is
capable
of
operat ing
in
several
com m unicat ions
configurat ions
,
depending on
the
optional
equi pm ent
ordered
.
All
available
configurat ions
are
described in
this
m anual
.
While
you
are
learning to
operat e
the
Model
743 ,
you
m ay
notice
anot her
difference
between it
and
a
st andard
typewriter
...
the Model
743’s
silent
printing
. In
fact ,
like m ost
typewriters
,
m ost
dat a
t erm i nals
use im pact
printing
techni ques .
The
quiet
,
nonim pact
printing of
the Model
743 is
achieved
by a
m iniat ure
five - by
- seven
-
dot m at ri x
of
35
tiny
heating
elem ent s
m ounted
on
a
solid
-
st at e
printhead ,
which
creat es
charact ers on
heat -
sensitive
paper .
ABOUT
THIS
MANUAL
...
All
operat ors
should
read
the
GENERAL
OPERATING
GUIDELINES
and
the
first three
sect ions
to
becom e
fam i liar
with
the
basic
operat ions of
the
Model
743.
Many
of
the
operat ions
described in
these
sect ions
are
repeated
in
subsequent
sect ions
,
but in
less detail .
If
you will
be
operat ing the
Model
743 with
the optional
Internal
Modem
or
the
optional
Auxiliary
EIA
Interface
Cable Kit
,
det erm i ne the
particular
configurat ion
you will
use ,
then
read the
appropriat e
operat ing
instructions
in
Sect ion IV
. If
you will be
responsible
for
installing
the Model
743
,
read
the
appropriat e
installat ion
instructions in
Sect ion
V.
Finally
, if
you want
to
know
m ore about
the
controls
and
keyboard
,
read
Sect ion
VI
.
NOTE
If you
don’t
know the
m eaning of
a techni cal
term ,
you
m ay
find its
definition
in
Appendix C.
2
CT 8101 Print ing Term inal Users

GENERAL OPERATING GUIDELINES
1 .
All operat ing instructions in Sect ions I , II , III , and IV of this m anual assum e that the Model
743 is correct ly installed in the desired configurat ion . If the dat a t erm i nal is not installed ,
det erm i ne the configurat ion you will require and connect the t erm i nal as described in the
appropriat e
instructions in
Sect ion
V.
2 .
External device denotes : a m inicom put er , dat a logger , CRT , com put er , plot ter , or any ot her
device which com m unicat es with the local Model 743 over a cable ( hard wired ) . External
m odem denotes : a m odem which is hard wired to the local Model 743. Local equi pm ent
denotes : the Model 743 , or the Model 743 with an ext ernal m odem and / or an ext ernal device .
3 .
Rem ot e device denotes : a m inicom put er , dat a t erm i nal , CRT , com put er , dat a logger , plot ter or
any ot her device which com m unicat es with the local Model 743 over telephone lines . Rem ot e
m odem : a m odem which is hard wired to the rem ot e device . Rem ot e equi pm ent denotes : the
rem ot e device , rem ot e m odem , and any ot her associated dat a equi pm ent .
4 .
Com m unicat ion line ( or sim ply line ) denotes the cable or telephone line over which dat a is
t ransm i tt ed to , and received from , the Model 743 .
5 .
Depress m eans
: m om ent arily
push
down the
designat ed key
and then
release it . Press
m eans :
push down a swit ch unt il it locks . Press and hold m eans : push down and hold the key unt il som e
st at ed
act ion
is
com plet ed .
6 .
Depress the PAPER ADV key to return the printhead to the left m argin and advance the paper .
Use this key when you do not wish to generat e a code to be t ransm i tt ed to the com m unicat ion
line .
7 .
Depress bot h LINE FEED and RETURN keys at the end of a typed line when you do wish to
generat e the respect ive codes to be t ransm i tt ed to the com m unicat ion line .
NOTE
Som e
Model
743
Data
Term inal
keyboards are
equipped
with alt ernat e - act ion keys for the LOW SPEED , HALF
DUP , and ON LINE funct ions instead of rocker swit ches .
Press down the desired key once to gain the labeled m ode ;
press
again to
release
the key
.
CT 8101 Print ing Term inal Users
3

POWER SWITCH
PAPER
SUPPLY
DOOR
PRINTHEAD
WINDOW
PINCH / ROLLER
PRINTER
silent
700
PLATEN
AND
DANCING
ROLLER
(
UNDER
PAPER )
IEGU
Slo
:
la
W
M
EW
KEYBOARD
M
VE
ALM
CARRIER -
DETECT
INDICATOR
(
REAR
VIEW )
POWER CORD
CONNECTOR
COMMUNICATION
LINE
INTERFACE
CONNECTOR
3
MODEL
743
KEYBOARD SEND /
RECEIVE
(
KSR )
ELECTRONIC
DATA
TERMINAL
4
CT 8101
Print ing
Term inal Users