Digital PDFs

XX-82502-E4

November 1971

59 pages

Original

3.9MB

Document:	LT19 EngrDrws
Order Number:	XX-82502-E4
Revision:
Pages:	59
Original Filename:	http://bitsavers.org/pdf/dec/pdp9/datacomm/LT19_EngrDrws_Nov71.pdf

OCR Text

...

MASTER DRAWING LIST

~!
~o
0-

U!!

~J
~!

REV.

NO. OF

LET.

isHE ETS

C-UA-LT19-A-O
A-PL-LT19-A-O

A
A

1
1

TELETYPE CONTROL (LT19-A)
TELETYPE CONTROL (I,T19-A)

D-BS-LT19-A-1

I/O BUS INTSRFACE LOGIC

D-BS-LT19-A-2

I/O BUS INTERFACE

D-MU-LT19-A-3
A-PL-LT19-A-3

A
A

1
1

MODULE UTILIZATION
MODULE uTILIZATION

DWG. NO.

!::

ioi

TITLE

o.!:

~~ .
.. o~

~i=
:.!: .~

£!!

~~i
~¥ !

"~:l
.coo

"~i

~; E

.E~~

-r
1

WIRED -".--.c;--sY
WIReD ASSY

WIRE LIST LT19

A-CP-LT1'J'A-S

EXTt:l{NAL COMPONENT LIST

A-SP-LT19-A-6

LT19A,B(C) MULTI-STATION TELETYPE
CONTROL AND INTERFACE

D-DI-LT19-A-7

DRAWING INDEX LIST LT19

D-AD 7006040·0·0
A-PL-7006040-0-0

~eo

~~2

~~ e

~i ~

K-WL-LT19-A-4

'O{\o;
'!!." c

~:iE

REVISIONS
REV.

CHG. NO.
,T19A ·01
Mise.S1
11/9/71 lTI'3A-3
DATE

%~~o

!DATE

DRN.

10/14;

ACKSON
APP'D. CHK'D.
PFYFFER
R.D.
D.V.
J.M. E~l~;"'~

DATE

10/22
DATE
/1' ' i , -.~

I"n',~ /f

OAT,

P/If.i:Jt /1

~~~~~~IDlEQU I PM E NT

HOI)

•. . , ~~:!~:?~A~'.c:.~

TITLE

MULTI-STATION
TELETYPE CONTROL

t.J

LJAVt

h.'£~.

FIRST USED ON

PDP-9
SHEET
8EC FORM NO.
RA 103

A ML
1

DIST.

NUMBE-t
't

REV.

I
I r 1 I T1 1 I I I

SIZE rODEI

SCALE

LT19-A

DIGITAL EQUIPMENT CORPORATION

QUANTITY /VARIATION

MAYNARD, MASSACHUSETTS

MADE BY W. JACKSON
10/4/68
DATE
ENG
1 U;:-t::{
/1- '/- ~ ?
DATE

PARTS LIST

;:t

-;-

III

trl

III

(jI

..-t

r-i

SECTION

CHECKED AL PFYFFER
10/21/68
DATE
PROD ~U( ~JP
DATE
/I/t../AV-

1
ISSUED SECT.

io4

Eo<

(jI

Eo<

..-t
Eo<

.....
H

r-i

(jI

.....

;;; -;-

Lfl
~

()

(jI

r-i
[-;

[-;

.....

(jI

.....

[-;

Eo<

(jI

ITEM
NO.

OWG NO./ PART NO.

D-AO-7006040-0-0

WIRED ASSY (LT19-A)

POP RIVETS #AD43ABS
PANEL, RIGHT END

8
2

a a

8
2

MARGINAL CHECK PANEL ASSY

2
2

9006460
C-MD-5302486-0-0
D-AD-5402526-0-0

O-UA-BC09A-0-O

BCOgA CABLE ASSY

0- SC-12098S0 -0 - 0

RET BLOCK

4
2

9006045-1
9006634

SCR PHI. HD #8-32 x 1J.: SST
WASH INT TOOTH #8

2
2

9
lU

glO7278-3

WASH, FLAT #8
#18 TUBING TEELON

RED

A/I A/F IA/l< l!\/R n./R /R

2 2 2 2 2
A/I ~/I A/I ~/F ~/R

9107278-7

#18 TUBING ,TEFLON, BLU

A/I A/I ~/l< ~/R n./R A/

A/ ~/I A/I ~/F ~/R

OEseRI PTION

D-AD-7005288-0-0

4915 TO W070 CABLE

C-IA-7005717-0-0

DATA SET CABLE

0913

JUMPER, 4" (RED)

ASSY NO.

TITLE

TELETYPE CONTROL (LT19A)
DEC FORM NO.

SIZE/CODE/

OIST.

1 G-I

1
2

IRAV.

NUMBER

A P L LT19-A-O

C-UA-LT19-A-O
SHEET

DRA 110

ECO NO.

Mise -

00081

1
WIRE TABLE

ITEM DESCRIPTION CONNECTIONS
NO. AWG COLOR
FROM
TO
10 ·,S
RED
S'N\
AOIA

10
r--

"
t--

t--_B_LU_-+-_S_W_2
__+-A_O_'_B---i
\. RED
5""3 BOlA
BLU
SW4
80\8

GND

BOle

BARE
RED

5W,

COlA

I I

BLU

RED

BLU

SW2
SW3
SW4

COl8
DOIA
0018

8ARE

GND

DOtC

10,12
10,12

RED
RED

II~!Z

RED

Iqfe
r-:--

RED
RED

t=
t-t---

r--

t----

_.__-__-_ r---..,----- - - ---- - VIE:W" B-B

n---'

0:
AI

+ + +

+++

REF

+++

-++ ...

++-+

WO)2 "8

+10 fXD AO.3A
A03A AliA
AlIA
AI<:JA
+10 F)(D C I 4A

CI4A

I
+."" +

~+ +

7
8

Cl2A

= =-===:-:.. - ---=====J:=========! rr-

+ +

+ + +

-+ + ...

+ +..

I ~ £J: "-----'---~.-I __--'9-R-E: - ____

I ~I=~I~==*===-=

+ +

10 7

1==

L-_---'

[]J

---SECT\ON "A-A'
CSCALE \/'

-_
__.. -_-_-_
.. -

..... .... 8 .... ..
......................
., .... ..
...................... ....
.-...
~

• J

~
I~1071
II

RECVR Ola I

RECVR

II.};

n.c,

C.II

W~H

NV
T

RECVR nCo 3-""H.-.----.V-.- 1 K
:C>KIP HQ

rOBUS

:OT40 11 1

ell

IOT'l141

(I)

10 SUS II

C28

TOl 4<'01 (I)

rOT 4161

~
~

01
0)

IOT"I06 I

V
R~02

[ TO 4.S

I.O BU'S la

0':11(8)

so 1(8)

DS I

. -_ _--~ 1.0 PWR

10 BUS lalB)

~lo

~
M

052.(8)

10 BuS 13 (B)

W/"7
cq,q

-XM Tn;

10 BU'S 14

~
N

I~""'-'"

XMTR FLG 2

~
~

~yNC

IO BUS 14(B)

WIVJ?
cq,q

XMTR F"Lc.

D83(B)
D~3

~----------~~----------~----------~~--------~~--~ RD RQ

IOT41¢Z(1)

IO 6U$ 1'5 (5)

117)7

10 BUS 15

CJZ)q

~
f

1(0

os .... (8)

10 BUS 1<o(B)

e""
~ I

ALL UNUSED GATES IN MODULE CU, MUST HAVE
~O~N=E~O~~_T~H~EI~R~I~N~P~U~T_P.~[~N~$~G~R~O~U~N~D~£~O~'~~____-1z~

054

~'fl7

10 BUS

CQlq

vml-l

B
EF

~
to

10 BUS 17

wl~7
O\~

10 BUS 17lB)

D'S S (B)

os'S
TO

GROUNDED...J

~~~~~~~~~~~~~~~R~--~

70T COblN~ ASSIGNMENT qST

lOT'S 7040-- THRLJ 7047-IHCI..UDIHG PRE-WIRED SUB-1)EVlCE
5ELECnoN CODES MAY BE USED.
THIS Y1£LOS 32 POSS18LE lOT
IHSTRUCnONS ASSIGNED TO MULTI
TTY CONTROLS.

cu~

SYNC

C0Q

10 SU'S 13

LRA!.E:- _ _ _ _ _ _ _ _ _ _ _ _ J

11(9)

WI07

lOT '\'-(11 II)

'"'C -cONTROi. -u;aT8oHLYl

REMOVE 1.2K AEUSTOR AND
1At)V\lS,. TCL.O FREQ"TO 2l SAve

IPl7

HIS

l·aK

C0Q

10 aut>

.-..n... fDO 11$

T C LO _

S1) 0 (8)

~,FOR LT

ADJUST PERIODl

I~~

(I)

IOT 4021 (I)
lOr 412t (l)

~ 10 BUS 10(B)

rOT 4001 (I)

lOT 4101

~~~

RECVR FLG 5

D'+

Rill
C2Q

RECIIR FLCO",

NOTE: CLAMP LOAOS PART OF ~H
Cr:t::tONM_ 1-1'" .. B OR C.

PWR CLR. (B)

l=>wR CLR.

C. LR rOT I CONTROL
10 PWR CLR--'--QI
+ 10 SYNC.

CLR loT 2

CONTROL

fiRS T USEOON OPTIO

PART NO.

DESCRIPTION

PDP-9

ITEM
NO.

PAATSUST

DlMINSiGW IN eNeMa

otCIIItat.I
:I:

TOlr~~;C!S
FCA:Ti:' i-il

AW't!S

I/o BUS

"":'1tW. au:r:~QU~°1

atWCV' ~.';l "':.} .......:..... ~.;jiJIp

c................

~f~~~·-----~--~~~~~~~~~~
FINISH ~'--_ _+-_
OF

INTERFACE LOGIC

8
n.''' • ....-..rId~.~,III(IIf8WI

..... ......

" " 01 D9t.. l..,.prMftl QgrportlIOl' ............. ...

~OfC~orlltM ... ~.Ift"""

""' ..... fottN~ .. OfMlldl . . . . . . . . . .
~.-. ... ," ... <>O'I

o
w85¢
COltl6

w85!l!
CO (82

W8Sel

C095

1/0 BUS ~~

I/O SYNC

I/O BUS ~I

lOP

CH
CK
CM
CP

1/0 BUS ~2
I/O BUS ~3

1/0 BUS ~4
I/O BUS ~5

lOP 2

SKIP

CM
CP

PROG INT RQ

CS
RD

CT
CV

I/O BUS ~7
I/O BUS ~8

RD STATUS

I/O ADDR

r/o ADDR

110 ADDR f/J7

I/O PWR CLR

I/O ADDR

N85~

C00B

f/J8

CD
WRITE RQ

INC MB

I/O OFLO

CI(

lOP 4

1/0 BUS ~6

I/O RUN (I)

CE
CH

w8~11'>

CO"7

+ I ...... CA INH

CK
CM

API ~ RQ

CM
CP

API ~ GR (I)

API ~ EN

API I RQ

CT
CV

API

GR (I)

API

c
DO

I/O BUS ~,
I/O BUS 1(&

1/0 BUS II
I/O BUS 12

1/0 BUS 17

.;---+-e

OM
OS
DT

I/O ADOR

R£CVR
',tCI/F~

I'WI! (U';8;~:r.

=tc

i/O

";YNC

..,fCVR
~i='r

FLG

3 GR (I)

c.?I J EN IN

API 7' 3 "Q (Co)

,MTR tl'JIN

I/O ADDR

1/0 ADDR

4.~~i;
~

1 J j

API 2 RQ

API 2 GR (I)

DH
OK

API 2 EN

01<

API .3 RQ

OM
DP

API 3 Gh (I)

API 3 EN IN

API

3 EN OUT

DCH RQ
OCH GRANT

u u

DCH

;:,r; (B)

IIPI3 RQ

t~~i

I/o F'WR CL;;"B)~

I/J SYNC

~
~<~ REC VR

API

"Ch

XMTR I'"LG

I/O

I.DDR

~I/o
, I
I/O

A::'DR

AIJDR

! (75)

Iio

ADDR

~ I/o

t\ D 0 R

I'"LG

I/O ADDR

~ R[C-VR ,\PI (]J3 Rl) (5)

IIll

1/0 ADDR
1/0 AOOR

OS 5

I/o BUS 16

I/O AOOR

OS 4

110 AOOR ¢9

OS 2
OS .3

I/O BUS 14

DO
H---t-e

f/J

I/O BUS 13

1/0 BUS

DE
OH
OK

~ GR (I)

XMTR EN IN

,',104

---<.~

XMTR

DE ~

(74)

---'

CD32.

~
I
U
s

CK
CL

IJo ACOR
I/O

Al)OR

I/O
I/O

ADDh!

,-,\

ADDR

15
FIRST GS;:)C~ OPTIC 'I''''OOEL

PART NO.

DESCRIPTION

PDP-9

PARTS UST

ERWI

UNLESS OTHERWISE SP£CIFIED
orWlNSK)N IN INeHlS

TOlERANCES
D[CI .... L$
%

005

Flto\CTIOflS
%

1/64

"NQLlS
:!.

O·,)()·

I/O BUS
INTERFACE

'UMO:~N:~,,~~"::: .~~~Ir;H~p
COItNUS

MATERIAL

FINISH

OF
DEC rolt .. NO
O,llO 102

ITEM
NO.

DIGITAL EQUIPMENT CORPORATION

QUANTITY /VARIATION

MAYNARD,MASSACHUSETTS

PARTS LIST

MADE BYW. JACKSON
DATE 10/19/68
ENG -;i.{:....-... -c!
11- '/- ( r
DATE
ITEM
NO.

SECTION

CHECKED AL PFYFFER
DATE 10/22/68
PROD /L)f' L./ .£:Y/
DATE
117~/6 E?

1
ISSUED SECT.
1

- --

~
...,

-- .....

I
JI

ICC
I

VAlUABLE CLOCK

ROO2
Rlll

DIODE NETWORK
NAND GATE

S107

INVERTER

S123

INPUT BUS GATE

S203

TRIPLE FLIP FLOP

S603

PULSE AMPLIFIER

..:I

r-I

..:I

.-i

r-I

.-i

..:I

I
1

....:l

......

'"E-i '"E-i '"E-o ~ '"E-<

.-i

Eo<

r-I

..:I

r-I

W005

CLAMPED LOADS

WI03

DEVICE SELECTOR

WI04
WlD7

I/O BUS MULTIPLEXER
I/O BUS RECEIVER CKT

*
*

.-i

r-I

R401

W5l1
W602
W705

~ N ~
.....

-- --,

'"E-o '"E-o E-i '"E-< '" '"E-<

.-i

DESCRIPTION

DWG NO./ PART NO.

;:; N

I
2

NEG INPUT CONVERTER
BI-POLAR OUTPUT CONVERTER

1
1

3.6 VOLT pm'1ER SUPPLY

W706

TELETYPE RECEIVER

W707

TELETYPE TRANSMITTER

1
1

1
1
1

*W'"riEN ASSIGNING Cf. ~ELS,THE LT19C OPTIONS SHALL BE
ASSIGNED TO THE LdWEST CHANNEL NUMBERS.

TITLE
MODULE UTILIZATION

SHEET
DEC FORM NO.
ORA 110

lAY'

S~rlpLI LTI9-A-3

NUMBER

ASSY NO.
D-MU-LT19-A-3
1

015T. j

ECO NO.
I-.:r'IQ11 (JOOOI

"""----._-...--._-_
..... _.- . .....
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""oI!IIpoI'-'*- .... _ .. .

(!)

17.7

1).113

• I.:!

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57":!

<ID

1111111.

17ft

17.1'

11.113

1,.3

17••

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leT

o
A
.. I.IV

TTY

llTR

neYR

TTY

XlTR

RECYR

TSO
PSII
RRE

B
c

:><

lOT
4141

+3.8Y

----tau

NII5

TSO
PSI
RRE

TTY
llTR

llTR
OS

RECYR
TTY
OS
RECYR

.;><

<3>

lOT

+3.IY

4161

18511

"9511

111511

18:ut

18511 WIU7 lSI'::>'

TSO
PSII
RRE

~
RClO

10 BUS
12

10 BUS OUT

I----

10 BUS
~
10 BUS

8
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elK

W6112

If.JlIi

SZlJ3

f+ 3.ev
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RECVR

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20 21
III/II/

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23 I 24

'fIrll7

WlO3

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S283

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(g)

lOT

4!JSI

4821

XIITR

RECYR

TTY

lOT

lllTR

RECVR

4121

41S1

API

)(MTR ~[CV~
FLAG FLG

!!-

I---

lOT

-XMTR

4122

FLG

sun WlID'

Ull

CD Yilli2

10 BUS
DSI(B)
TSO
17
DS2(B)

DI~D
CLPlOT 2 DS3(B) DI~I<

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35 36

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PSM

RClO

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/
cv DESIGNATES

1ST

OPT IONAl

l TO&8

(I)

~ DES ISHATES

2ND

@ DESIGNATES

3RD
4TH

lTOIB
l Ton
lTOt8

(2)

~ DESIGNATES

OPT 10NAl
OPTIONAL
OPTIONAL

GJ DESIGNATES

5TH

OPTIONAL

lTI,

(5)

.... LitCl-C

ONLY

(3)
(4)

(a ORC)
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@)+

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CONT

35 36 37 38 39 40 41

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lOT I

10 BUS OUT

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10 BUS
15
10 BUS SKP
18
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'I'l, 1185

30 31

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10 BUS P-fuRO 10 PIR

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1.7.
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10 BIJS

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10 BUS

4162

R4I1

I TSO
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10511

24
52!l~

4291

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23
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1 ..11

4161

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20
17..,

4141

~'4J( !l
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19
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18
'I. 1

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121.

REVLTR

DRWG NO

K-WL - LTI9 -A-4

to 1>

0
0
0

(l1
()

0
0
c... 0

$?
~

(5
(j)

I
(!)

(..;

f
~

~ ~

DATE

DRAWN

w.E.JAcksoN 10/14/68
. CHECKED I '

DATE

(~(~t

II . t(

II
'. . :;:!""-- ;..", \.,....ENG
/

/ ••

'.-'>1'"

\; 1\

DATE

/! -- - -.- / ~.
DATE

>' <"

~~•.t )) j i X
PROD

IDATE

ASSY NO

FOR

TAPE Iit

I SHEET I

SIZE

CODE

FrLE~

DWG.HO.

REV LTR

K WL LTI9-A-4
II

(j)

LTI9

MAVNARD,MASSACHUSETTS

::0
fTl

WIRE LIST

EQUIPMENT
CORPORATION

TITLE

m~~~~~~

IJCa,Lei II/f?~~ SCALE

.~. ~
;;' t~
j'-:--

r:o
~rn
:0<

015T. -I

I 1

B
1

+
COMPONENT NAME

POL.

VALUE

FROM PIN

TO PIN

RESISTOR

1.2K OHM l:aw 10%

D09R

D09T

RESISTOR
RESISTOR

10K OHM l:aw 10%
1.2K OHM l:aw 10%

B2BE
D19R

B2BA
D19T

fl'
~ j

913 JUMPER *
913 JUMPER *
10K OHM J..rW 10%
1.2K OHM ~W 10%

D14S
D14R
B2BN
D27R
D22N
D22p

10K OHM l..iw 100/0
1.2K OHM l:iw 100/0

B29E
BOBR

Dl3D
D13H
C2BA
027T
021D
D21H
B29A
B08T

B03N
B03P
B29N

n02D
B02H
C29A

B16R
BllN

B16T
BIOD

BUP
B30E
B24R
B19N
B19P

BIOH
B30A
B24T
BleD
BIBH

POL.

';1
"625

RESISTOR
ij I RESISTOR
**
!::I C
.~!

cOj

li~
.c~

,Uj

€o

""2 •
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~~"6
;2'~

..,~~

i.a 2i
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'i~ti
~~~
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(:.C"
.e
.JIo.

913 JUMPER *
913 JUMPER *
RESISTOR
RESISTOR

913 JUMPER *
913 JUMPER *
~S:t:~TOR

RESISTOR
**
913 JUMPER *
913 JUMPER

10K OHM l:iw 10"/0
1.2K OHM ~W 10%

RESISTOR
RESISTOR
**
913 JUMPER *
913 JUMPER *

10K OHM J..iw 10010
1. 2K OHM l:iw 100/0

.L..
~

NOTE:
*= LT19-C ONLY (SE1 UNIT ASSY PARTS Ln T PO
**=LT19-B ONLY

PART NO)

t-::=,-=::-R"TEV-:'S:::-':::O:-N-:S::::-I.::::=-110_RN~J·A~C~K~S~O~N!.+.f;.;:~~/==1~7,q/58
m~m~~
~. m~ ECORPORATION
QUI PM EN T
REV. DATE CHG. NO. APP'D. iCHK'O.
DATE
•
0
,"

.....--+---+----+--~ PFYFFER

IE~11f) '..f-

10/2'Z/bB '
DATE r TITLE

.....VN .... D .......... CHU . .TT.

/ :f..j . lA ~;t.:3'
EXTERNAL COMPONENT LIST
>5'~~ /I·7tl FOR

IPRjff)l'~fifo/«

LT19-A

IRSTUSEO ON
A-ML-LT19-A
SIZEICOOEI
"'S-CA-L-E--HAL-P----1 A

NUMBER

lCPI LT19-A-S

SHEET 1

Bii ~g:M NO.

OIST.

REV.

I I I I I I I I I I

DIGITAL EQUIPMENT CORPORATION

ENGINEERING SPECIFICATION

MAYNARD, MASSACHUSETTS
EN(~INEERING SPECIFICATION
TnLE

TITLE LT19A,B (C) Multi-Station Twletype Control and Interface

DATE 10/8/68

1.0

LTl9A,B(C) MU1ti-Station Teletype Control and Interface
REVISIONS

REV

DESCRIPTION

IcHG NO

ORIG

DATE

APPD BY

CONnNUAnON SHEET

Multi-Station Teletype Interface (Type LT19~
Addition of the LT19A option to the PDP-9 expands
the machi ne I s teletype faci '.i ty to accommodate up to
five optional teletype centrol units. The LTl9A consists
of the following:

. "ATE

Two standard 19" DEC Type 1943 mounting
panels (completely bussed and prewired
for PDP-9 IO Bus interfacing and the
insertion of up to five independent
teletype controls, LT19B ' S or LTl9C ' a
defined bcUow) •
All of the logic modules necessary to
interface the control units to the
standard PDP-9 IO Bus.

Optional Teletype Control (Type LTl9B)
The LT19B is a group of standard DEC logic rnodules
which, when inserted into the appropriate loeations
of an LT19A,constitute a single independent teletyped control with the following specifications:
a.

five or eight * bit character codes.

one unit start code.

1, 1.5 or 2 * unit stop codes.

Full * or half duplex operation.

Speed of 110 baud.

Maximum

LT19B teletype controls may be used with ASR,
KSR, RO or SO teletype units.

signal transmission distanr.e is 2000 feet.

* Standard unit

SIZE ICODE
A I Sp

NUMBER

HEV

LT19-A-6

DEC FORM NO.

.,.' .

PRA 107

ENGINEERING SPECIFICATION

CONTINUATION SHEET

TITLE
LT19A,B (c) Multi-Station Teletype Control ar,d Interface
~.--------~~~------------------~~--~~----------~--~--------~

TITLE

NUMBER

L~r19-A-6

REV

COHTINUAnON SHEET

LTl9A,B (C) Multi-Station Teletype Control and lnterface
1.1

Each LT19A added to a PDP-9 will acconunodc.te up to five
teletype control units (LT19B' S). These I,T19B control
units contain logical elements wnich are functionally
similar to those of the PDP-9 standard teletype control
Instructior~ and programming considerations are,therefore,
similar to those of the standard unit.

SAIZE ICsO DE I
p
I

The LT19A,B (C) system consists of an interface to
the processor (LTl9A) and up to five teletyp!
control units. (LT19B(C) ).

Optional Teletype Control with Standard ETA Level Converters
(Type LT19c)
T'he LT19C is a group of standard DEC logic modules Which,
when inserted into the appropriate locations of an LT19A,
constitute a single independent teletype control(exact1y
the same as the LT19B specified above)with standard EIA
level converters. Thus the LT19C may be directly connected
to input/output devices using standard EIJI logic levels, i.e.
dataphone.

One to five optional LT19B(C) tel~~ contrell
units may b~ added to each LT19A interface.
1.2

Each of the LTl9B (C) control units (up to fiv'e mav
be added) is optional - directly pluggable into tbe
LT19A interface.

1.3

The LT19A is packaged in two standard DEC #194319" logic mcunting racks. Up to five LTl9B (C)
control units may be plugged into the LTl9A logic
racks.
(10~" of mour.ting space is required).
When the LT19A,B (C) options are added to a PDP-S
system, these 1943 logic mounting racks rr.ust be
added to the system as shown in sect~on 4.0 and
all necessary cable connectors and power wiring
should then be added.

1.4

SI1E ICOsDpEI

DEC FORM NI)
ORA 108

NUMBER

I LT19-A-6
SHEET

NUMBER

REV
17

The LT19A,B (C) options operate reliably over the
temperature and hu:nidity range specified for the
processor. Each LT19A,B (C) optional systen-. is
powered from one standard DEC #728 Po\-Jer Supply
mounted on the back door of the bay in ~hich
the LT19A,B (C) system is mounted. No special
power controls or fan assemblies (other than
t.hose necessary for t :,e ITul +.:i-bay syste;r) are
necessary.

REV

LT19-A-6
DEC FORM NO
ORA 108

StllEET _4_ OF

--!Z..

E'~G,~~EEnING SPECIFICATION

CONTINUATION SHEET

ENGINEERING SPC:CIFICATION
TITLE

nTLE],T19A,B (C) Multi-Station Teletype Control and Interface

1.5

General Performance

LTl9A,B (C) Multi-Station Teletype Control and Interface

3.0

lOT Instructions

A general description of the LT19A,B option is
giuen on page 4-31 of the PDP-9 Users Handbook (F-95)
a.

The following device selection codes have ~!en
assigned for use with optional teletype units:

Teletype operational characteristics
(1) five or eight* bit character code.
(2) one* unit start code.

(3)

1, 1.5 or 2* units stop code.

(4)

Full duplex operation.

(5)

(6)

Speed = 10,000 Baud.

(7)

Maximum signal transmission distance2000 feet:

CQNTlNUAnON SHEET

Teleprinters

Keyboards

7040-7042-7044-7046--

7041-7043-7045--

7047--

In addition to these device selection codes
the standard PDP-9 sub device selection lines
(Soo,SD1) are also available for assignment.
As a result, the device selection codes list,ed
above represent 32 possible device codes.

to five teletype units per LT19A.
Maximum

Teleprinter lOTS

*Standard unit

Skip on teleprinter flag e.g.,

70400.1

Clear teleprinter flag e.g.,

7040 01

Load teleprinter buffer and
transmit character e.g.

704001

Keyboard lOTS
1 Skip on keyboard flag e.g.

704l0!

Clear keyboard flag and read
the keyboard buffer e.g.

704101

Not used

Special Maintenance Instructions

3.2

The LT19A,B (C) system uses no special maintuaance
instructions.
No special data formats,programming considerations
operator controls, or indicators are necessary for
the LTl9A,B (C) system.

3.3
3.6

~'--------------------------------~lrs-AI~ZE~JTC707s~DpE~qr---~N~U~M~B~E~R~--'lrR~E:~'v71
1 LT19-A-6
DEC FORM NO

~~"-""'~-''',~ ,

--------,-------- ,--. -----===--.....-..:.::...-------. - .
ENGINEER~NG SPECIFICATION
TInE,

f---.

SHEET ~,()t:.-1.L::.'~

:.,.~.

CONTINUATION SHEET

I,Tl9A,B (C) Multi-Station Teletype Control and Interface

2.0

Vendor-Supplied Equipment Specifications
The LTl9A,B (C) system may use standard teletype
units (ASR's,KSR's,RO's,SO's)and/or standard
EIA level operated input/output devices i.e.,
dataphone interface. All of the above teletype
equipment and ElA level operated equipment are
standard DEC peripheral devices which have DBC
Purchase Specifications. Therefore, if
specifications are required for any standard
DEC input/output unit, it may be obtained from
the Purchasing Specifications List.

DEC FORM NO

L.~="Di\:~~,_'_'

___.~ ______"__

SHEET _6_ OF -2.Z

;:~~.-.

ENGINEERING SPECIFICATION

CONl1NUAnON SHEET

TITLE LT19A,B (C) Multi-Station Teletype Control and In'terface

3.7

No status bits are assigned to the LT19A,B (C)
system.

3.8

Timing diagrams for LTl9B(C) teletype control
are presented on pages 3-9 (receiver) and 3-7
(transmitter) of the LTl9 Instruction Manual

NUMBER
LTl9-A-6
DEC FORM NO
ORA 108

I -Ii..

SIZE lCODEI
NUMBER
SP I LT19-A-6

NUMBER
LT19-A-6
DEC FORM NO
ORA loa

SHE.ET ~ OF

--=.z..

ENlGINEERtNG SPECIFICATION

CONnNUATION SHEET

ENGINEERCNG SPECIFICATION

1---'

TitlE

LT19A,B (C) Multi-Station Teletype Control and Interface

TITLE LTl9A,B(C) Multi-Station Teletype Control and Int:erface

6.0
6.1

Installation Data

Master Drawing Lists
LTl9A
No. of
Drawing No.
~
A-ML-LTl9-A
1
C-UA-LTl9-A-O
1
A-PL-LTl9-h,-O
1
D-BS-LTl9-A-l
1
D-BS-LTl9-A-2
I
D-MU-LTl9-A-3
1
A-PL-LTl9-A-3
1

The LT~9A,B (C) system is packaged in a standard
PDP-9 19" optional cabinet. The standard LTl9
system operates at very slow frequencies and,
therefore, may be located at any place along
the standard PDP-9 10 bus.
No specia: action need be taken (either in
shipment or during s~te installation) to
install on LTl9 system other than that required
for the basic processor and standard tele·type
units.

D-AD-7006040~0-0

6.2

6.3

NUMBER

LT19-A-6

No. of
Sheets

LT19C
Drawing No.
A-ML-LTl9-C
D-BS-LTl9-C-l
D-BS-LTl9-C-2
D-BS-LTl9-C-3
D-BS-LT19-C-4
D-BS-LT19-C-5

No. of
Sheets
1

ENGINEERING SPECIFICATION
TITLE

a:::3I

1
1

1
1
1
1

LT19-B(C)-1
LT19-B(C)-2
LT19-B(C)-3
LT19-B(C)-4
LT19-B(C)-5

Teletype Interface LTI9-C
Teletype Control Unit Channel I
Teletype Control Unit Channel 2
Teletype Control Unit Channel 1
Teletype Control Unit Channel 4
Teletype Control Unit ~nnel 5

E
S'A

DEC FOAM NO
---

ENGINEE~ING SPECIFICATION
TITLE

INUMBER

LTl9-A-6

REV

1::1

CONnNUAnON SHEET

LT19A,B(C) Multi-Station Teletype.Control and Interface
7.0

All connections from the LT19A,B (C) system to
the basic processor are made through the
standard PDP-9 10 Bus. No special cabling is
needed for the system. The optional teletype
units (or EIA standard level units) are
interfaced to LT19A,B (C) system as stated
in Section 7 (System C~~ponents). The single
control cable and its termi~ation module are
standard units which are delivered with the
optional input/output unit.

System Components
Basic system components consist of the LTl9A,B(C}
control logic (located in an optional bay) and up
to S teletype units or EIA level operated units
for each LTl9A control. The optional teletype
units or EIA units are located remotely from
The PDP-9 system. A single cont.rol cable interf;!lces
the remote unit to its control in the PDP-9 sy&t1em. This
control cable is terminated with a standard DEC '~070 cable
connector module which is inserted in its assign(~d location in ,
the LT19A mounting panels (see module utilization print
D-MU-LT19-A-3).

7.1

Modules needed to implement the multi-teletype control
are as follows:
~

1 -R40i

2 -S107
1 -S123
1 -S603
2 -WI07
~

(PDP-9 interface only)
2 -~~2
1 -RIll
2 -W104

(Single teletype control only)

-R40l

2 -S203
1 -WOOS
1 -W070 (part of teletype or E1A device)
2 -Wl03
1 -W70S
1 -W706
1 -W707

(Single EIA level operated

device control)

Same as LT19B plus
1 -W511
1 -W602

NUMBER

LT19-A-6
DEC FORM 110
ORA 108

SHEET ..!!..-.OF •._17~_ .

DRA10e
.;,~!\

Interface Specifications

Teletype Interfclce LTI9-B
Teletype Control~ Unit Channel 1
Teletype Control. Unit Channel 2
Teletype Control. Unit Channel 3
Teletype Control Unit Channel 4
Teletype Control Unit Channel 5

I I~~DE I

-.22..

CONTINUATION SHEET

lJ.'it:le

MUlti-Statio~type Control
Teletype Control
Teletype CDntrol
I/O Bus Interface Logic
I/O Bus Interface
Module Utilization
Module Utilization
Wired Assy
Wired ABsy
Wire List LTl9
External Componc:mt List

1st optional teletype cont:rol
2nd optional teletype control
3rd optional teletype cont:rol
4th optional teletype cont.rol
5th optional teletype control

REV

L'l'19A,B (C) Multi-Station Teletype Control and Interface

5.0

1
1

SHEET _9_ OF

-.ai

1
I

LTl9B
Drawing No.
A-ML-LT19-B
D-BS-LTl9-B-l
D-BS-LTl9-B-2
D-BS-LTl9-B-3
D-BS-LTl9-B-4
D-BS-LTl9-B-5

Note:

DEC FORM NO
DRA10"

1
1

A-PL-7006040-0-0
K-WL-LTl9-A-4
A-CP-LTl9-A-5

General information on the physical locating
of noncritical options (when assi9~ed to a PDP-9
system) is contained in Chapter 4 (Mechanical)
of the PDP-9 Sales Notebook.

I S~E Ic~gEI

COImNUAnON SHEET

SHEET ~ OF

SI E ICsOpDE I
A
I

REV
OEC FORM NO
ORA 108

NUMBER

LT19-A-6

ENGQN£G~C~G SPECIFICATION

CONnNUATION !:iHEET

ENGINEERING SPECIFICATION

TITLE LTl9A,B(C) Multi-Station Teletype Cobtrol and Interface
7.2

7.3

7.4

TITLE LT19A,B(C) Multi-Station Teletype Control und Interface

No special power controls are necessary due to the
addition of·an LT19A,B(C) system other than those
reqUired fo~ the optional bay configuratlon. One
72B power s,upply must be added to the back .' door of
the optional bay for each LTI9A,B,C system interfaced
to a PDP-9. See table below.

9.0

In addition, the following documentation l:Lst must
be complete before the unit is accepted.

As stated in Section 2.0 vendor-supplied equipment
whcih interfaces to the LT19A,B(C) system is standard
and DEC purchase specifications for all units are
available from Drafting.

LT19C
+10
-15

l-LT19B
1.47A
1.58A

2-LT19B
2.88
1.86

3-LT19B
4.30
2.14

4-LT19B
5.72

2.42

Program 'l~ape

MAINDEC-9A-DBCA-D

Write-up

9.1

No special test equipment is needed for ac(:eptanc:eof
this option.

9.2

Field-installed LT19A,B(C) options should t~ tested
and aq::epted under the same stipulations st;ated for
in-house installations.

5-LT19B
7.1.4
2.70

I
SHEET ~ OF

...,....,~ ___ ...,., .....

REV

NUMBER

LT19-A-6
17

....
E'-N-G-.-N-E-E-R-IN-G-S-P-E-C-I-F-IC-A-Y-I-O-N---e-'-'-j'-'--C-O-N-TI-NU-A-TI-O-N-Sl-l·-IE-ET---,
n!LE LT19A,B(C) Multi-Station Teletype Control and Interface
B.O

MAINDEC-9A-DBCS-PH

+10V-7.2A,-15V-2.8A

DEC FORII NO

-;rc.,;-,

.075A}
.134A
Maximum LT19C Configuration

Maximum Possible Load:

~_","""-1I)a..,...._,,.,

Acceptance Test procedure
The Acceptance Test pperator must sucessfully· rerun
all Checkout Test Procedures as stated in I;ection B.

An LT19A,B(C) system is interfaced to the PDP-9
processor through the 10 Bus and to input/output
devices through connector cables supplied with the
optional unit. As a result, no special cabling is
needed for the system.

LT19A With
+lOV
-15V

DEC FORM NO
ORA 108

ENGINEERING SPECIFICATION
TITLE

CONTINUAnON SHEET

LT19A,B(C) Multi-Station Teletype Control and Interface
10.0 Spare Parts

Acceptance Test Procedure

Spare modules necessary for the LTl9A

Each LT19A,B(C) unit will be ~ested using Test
Procedure MAINDEC-9A-DSAA-D both under normal
operating conditions and under voltage margins
as specified below:
Test
No.

CONTINUAnON SHEET

Aggravation
Conditions

1
1
1.

Margins
+lOV
+
+

-15V

None

Margin LT19A
(Rack A)

2.5

Margin LT19A
(Rack B)

2.5

Margin LT19A
(Rack C)

2.5

Margin LT19A
(Rack D)

2.5

S123*
5603*
R401.*

1 Sl07*
1 Wl07
1 Wl04

*These modules are already included in
the basic processor spare parts llst.

Spare modules necessary for the LTl9B:
1
1

R40l*
5203*

1 W005*
1 W070
1 Wl03

modules are already included in
the basic processor spare parts list.

*T~se

Spare modules mecessary for the LT19C:
Same as LT19B plus:
1

W511

W602

10.1 No special component spares are necessary for the
LT19A,B(C) system.
10.3 Special mechanical spare parts and tools
10.4 which should be supplied with' each optional
teletype unit are listed in the PDP-9 Sales
Notebook,Section 7.6.

DEC FORII NO
ORA 108

llE /COsDpEJ
SA

NUIIBER

NUMBER

LT19-A-6

I LT19-A-6

SHEET ~ OF 11-

DEC FORM NO
ORA 108

SHEET ~ OF

-2:?.

ENGINEERING SPECIFICATION
TITLE

CONTINUATION SHEET

LT19A,B(C) Multi-Station Teletype Control and Interface

11.0

Preventative Maintenance Procedures
To insure reliable operation of the LTl9A,B(C)
system, standard processor maintenance procedures
Ifor both logic and the teletype units) must be
followed. All additional KSR'S,ASR'S,SO'S, or
RO'S which are added to the PDP-9 system must
follow standard field service maintenance
procedures to insure proper operation.

NUMBER

LT19-A-6
DEC FORM NO
ORA 108

SHEET

-2:2.. OF

_..._--

_
........................... ......

--...
....
..............................

..... IIoiIOoI _ _ .... _

.., .
6

... ..

IIECHANICAL
FIND
NO
I

TELETYPE CONTROL
C-UA-lllI-I-O

PADD

CUST

II RED ASSY (LTlI-A)
II RED ASSY (lTiS-A) P.L.

D-AO-70DBa.D-D-D
A-PL-7008040-0-0

FINO
NO

'.IC

'~~~~9~~~Y
0-A0-1006040-0-0

.. ARG I NAI CHECK
PANEL ASSY

0-AO-I843-O-0
A-PL-1943-D-0

19430 MOUNTI NG PANEL
19430 MOUNTING PANEl P.L

,!gJ~

ELECTRICAL

TI"a-o

RET BLOCII
49'5 TO IOU CABLE
DATA SET CABL E

P;L;

!l0 C.'.!!lE -'SSY

PAAT NO
C-UA-L
I-PL-LT't-a-o
C-IIlI-5302••1-D-0
PI
II" 6""",,,
.. -y-u
" ..
t.I_"-vw"
....
B-IIO-UOla.7-D-0
O-AO-7DD5288-D-O
C-I A-70051 17-0-0

TELETYPE CONTROL
PANEL ;AIGHT END

DEPT usaaE

DESCRIPTION

TEL ETYPE CONTROL

, II .,. , L - tf..,;§) I I

DEPT USAClf

DESCAIPTION

PUT NO

PROD

IlULTI-SUTlON TELETYPE CONTROL
1;.10 IUS UITERFACE lOllle
LOBUS INTERFACE
iiiiiiiILt UIILllATiON
IIODULE UTILIZATION P.L.
liRE LIST LTIS
EXTERNAL COIIPONENT LIST
lTlI ENGINEERING SPECIFICUlDN
-OPTIONSTELETYPE INTERFACE IT I 8-8
TELETYPE COIHROL UNIT CHANNEL ,
TElET I PE CONTROL UN IT CHANNEL 2
TUETYPE COIiTROL UNIT CHANNEL 3
TELETYPE COIiTROl UNIT CHANNEL •
TELETYPE CONTROL UNIT CHANNEL 5

WI-LTII-.
HI-LTIB-A-I

TElETYPE INTERFACE LTlI-C
T£LETYPE CONTROL UNIT CHANNEL I
TE l EHPE CONTROL UN IT CHANNEL 2
TELETYPE CONTROL UN I T CHANNEL 3
TElETYPE CONTROL UNIT CHANNEL 4
TELETYPE CONTROL UNIT CHANNEL 5

A-IIL-L TlB-C
0-85-LT 19-C- I
0-8S-L T18-C-2
0-85-L T19-C-3
O-S5-L T19-1:-4
O-RS-L T19-C-5

"RED ASSY (l TJ9-A)

O-AD-ID0604C-0-0

o· !!s-l T!!H-2

O-MU-L TI8-A-3
A-PL -I Tl9-A-3
II-al-I T1ll-A-4
A-CP-L T1ll-A-5
A-SP-I TI8-A-6

CilST

F.,C

I
0

A-IIL-LTIH
O-BS-l Tl9-B-l
0-8S-L Tl9-B-2
O-BS-LTl:; .1-3
O-BS-L Tl9-8-4
D-BS-L TI 9-8-5

/ C-I A-5402526-0-0
2

~~
3

1943 D MOUNTING
PANEl
D-AO-1943-11-0

0-y
..

1943 CASTING
PLUS PINS
O-AD-5302483-0-0

I
5

1943 CASTING PLUS PINS
1943 CASTING PLUS PINS P.l.
1943 FRAME CAST I NG

D-AD-53024B3-0-0
A-Pl-5302483-0-0
E-IIO-I202885-0-0

IIARGINAl CHECK PANEL ASSY
MARG I NAL CHECK PANEl (P.• l .• )
PANEL. IIARGINAl CHECK
SCOTCHCAl S

C-I A-5402526-0-0
A-Pl-54025 26-0-0
C-MD-5302484-0-D
SS-C-10801

IIOUNTI NG PANEl 1943
IARGINAl CHECK PANEl ASSY

B-CS-1943-0-1
C-I A-5402526-0-0

....J

rtRST USED ON OPT1UN! MODEL

PDP-9L
~J"lLf~U!IWtj\YI~g"Sf;:("B£O
UNLESS OTWERWISE SP£ClAED

1--

DII~"

DATE
,ol,PA6e

I~~T~_\~

~e:' ...~ ~~ ENl~~\~
It£ua:":i.':..;;.~'=';.~. ~}:J~~ L

~5·~

TOL£ItANC[S

COlIN'"

MATEtdAL

I
-f-

PARTS UST

c~~~ L~

DlII[N$iON IN INCHES

D£SCRtPTlON

"tr} a
~~SSY 9jJt!a

PART NO.

~~--- ...... """~ E QUI PM E N T
•
CORPORATION
TIT' ..... ~--~.. " •• o ~""CHU"'"
""

!llire""lHffl

DRAWING

IN 0 E X LIST
L T 19
"S""IZ"'EI"'~CO"')t?9""E---""N"'U"'MIl"'E""I!---rl--::lREV~.-----t

A- ML - LTI9· A

---,--+-SCAU7:':'":1:---N;-;-O~N;-;-E;:----t D10 1\ L T I 9 - A - 7

J.::F""'INI"'SH""--,

--+,-----jl~

.. .1. .

!
.1

SHEET

OIST.

I G-I

I I

I 1

.
t!5
&

MASTER DRAWING LIST

....

Ul!!

DWG. NO.

E ..

·~fi

~::

REV. NO. OF
LET. IS~EETS

A-ML-LT19-A

REF

D-BS-LT19-B-l
D-BS-LT19-B-2
D-~~-LT1~ B-3
D-BS-LT19-B-4
D-BS-LT19-B-5

B
8
B
8
B

TITLE

MULTI-S~ATION

TELETYPE CO~TROL UNIT CHANNEL 1
TELETYPE CONTROL UNIT CHANNEL 2
TELETYPE CONTROL UNIT CHANNEL 3
TELETYPE CON'l'ROL UNIT CHANNEL 4
TELETYPE CONTROL UNTI CHANNEL 5

TELETYPE CONTROL

i30=

...

00
~

~l~
e:l

0..= ~

1
1

£1 &
~~i

~i~

~.~~

ur.

~ o"i
ili E
.!:! uS

li~
~~
."

"'~:

:iiJll;
bOO' •

I~~
~".

"'-5-:;
~ -,;:a

r.c"
.......
E

--..

DATE

REV.

q/1l(6~

11/9/71

CHG. NO.

LT19A-l
LTI9A-3

DATE

DRN.

REVISIONS

10/22

~iI~~DffinE Q u t PM EN T
~~~~~~.~~'.~~

DATE

TITLE

JACKSON

10/14/

APP'D. CHK·O.

R.D.

,DATE

PFYFFER

J.M. ~1'D 'f,;
t. /-1/ <'~

IJ- -! -f:,S

'. '..

TELETYPE 'INTERFACE
LT19-B

llj~~'.".4 ~7~la
PR

...

lij
WL4/! OA~~<;

fiRST USED ON

LT19-A
SCALE

g~~

m:M

SHEET
NO.

SIZErOOEj

A Ml
1

OIST.

NUMBER

REV.

I
I I I I
B

LT19-B

I I I I I J
<,

-----,
I
!

l_ -.J

o
RCI..E

CLR IOr
, CONTROL

rAD.JUST FREE RUNNINc:.l
LFERIOO TO 4-.50 MS

CL'R lOT

~O~'~~~~------~~~~~~ZCOHrROL~R~-----,~
v

v
R£CVR
~l..GI

W7I'J7 .C~PROG TNT RQ
CDI5
CH --P::'M

lOT 4tD¢1

TiY

top I

C L __ -t> X MTR

rOT 4102 (I)
RECVR

~ LG I

"'3. c;, V
RCLO
lOT <+102.(1)
TIC ,\,,JR "-L R(0;) OV
TSO

lOT 4'1'1114-

API CiD RQ (B)

WIDIDS

1,0 SU'<> \0

W 'Su~ 1\
IP au"" Ie
lP BU:; 13
1b su." 14

I-----~D\+

If.) bU'5 \5

1P eu!:> \("
I/o Bue,; 17
RCL~

'h'~70

DI3

.50

psM

RRE _

*' NOTES:

TO TTY U~\T

DIODES MUST BE
REMOvED FRO"" W 103 DE.VICE
SELECTOR MODULES TO OBTA1N PROt'LlI.
5E.L (:C,OR COD~:S.

APf'ROPRlI\T£

(XMl\'t. DS)

FIRST USEDCN(PTIC

PART NO

LTl9-A

PARTS LIST

IllATEliiAl

FINISH
(

ITEM
NO.

----_
.......-..
.. _---_
..............................
..................................

2-8611

...,

CLR lOT

CL.R rOT

'CONTROL~~~~~~~------~~~~~~ZCOHiROL~~-----,~

rAD.JUST FREE RUItNING.l
l!'E'RIOO TO 4.5_ MS

wells

ozz

v
XMTR
Fi..G2..

lOT 4~i.1

RECVR
FLC3;t

IOT 4122 (I)

H'<OG IN! RQ

IOT "t12.\
TC.LO

lOP I

XMTh'

IOTQ\jf24
0

rp ~us \0 lBl

Wlll0S

D~ II B

l/:> BUS 1'3

JjJ BUS 1"3 (e)

J.b Bu~ 17

l.,b 81.J~ 14 (8)

RCL~

IP BU,=» 1St'S) of

l.p BUS I~(B\ ~ L
J.P BU~ 17lB) C i

0\-1

OSIS

OJ
('V

tl~

W/D70

D21

BU~ II

rJJ BU~ 12

r,b BUS 12.(B)

IKDS
WIf)'3
CDZS

DS II

-rp BU~ \I (8)

022

O£

I,b BU~ \16

TIC

Tlo \?WB CLB (Ico) OU

kr;,

'LS 2

RRE:

RCLO
10T1-1 ZZ(I)

+~.c:..v

INT

k rev,,;

+-3,(QV

f"LC 2

IOT 4i!z'q.

IQT<UI2a

PF<(I(,

RECVR API Q\3 RQ (8)

~-'-'------P~M

\MTR

Tso=1]H,.,

U,",\T

PSM.

RRE.

SOl

(~E.CVR DS~

NOTES:
A1='PR.OPRlAiE
DIODES MUST BE
RE MOvED FROY!
W 1~3 DEvICE
SELECTOR MODULES TO 0BTA1"- p~opt~
5E.l £C10"," COD~5.

PMTIIO.

1T[fIII

110,

PUTS UST

~~~~~~~~~mi~~"__~'__:,~__~___
~-=--~'::I~_:~:~~~~~~~~~~~M:!~!~~~~"~~~A

TTY CONTROL
UNIT

CHANNEL
FIliiSH

-_
_
-- _-8

......
....-.......
...........................
.. ....................... _

"""
............-----.--.

-----,
I

CLR lOT

CLR lOT
I CONTROL ~O~----~~--------~~--~~~ZC~TROL ~~----~~

IADJOST FREE RUNNIN~
I!'ERIOO TO 4.5111 M~

~OT "\1&41

I.c.1of,

v
XM1R
FLG :&

"'/..63

AE ---1> lOT 4-141

lOT 4s&~1

R£CVIO/

,nevi'<

I-"r, (I~)

([I:'

rop I

TCL.O
rOT 404q.

TOT 4042.

XMTR

API

Ql3

+3.<OV
-:Ie Pl..iR CLP

IjO 'c\VP CL R ([:",

T::'O

TP BUS I~ (8) -

BU'<> 14

1P BUo;:, II (B)

rb B\J~ IS

rP BUS l2.lB)

~ BUSIr.
r)::J BUS 17

rb BUS 1:3(B)

l./o BUS 14 tB)
IP BUS Ist~)

RCLt:

'I.p sus llOtB\

os 1/

IP Bu~ i7lB) ~

OSIB

D5 \
DSaB
DSc.
DS3B

TO I TY UNI'T

DS3
DS4S

D54

ossa
DSS
So¢!
SOIB

*'
(RE.CV~

()( t-\"T~ os)

N"OT£S:
APP~OPRl~TE

us)

DIODES

MUST

FRO'""

REMOvED
S~LE.CTOR

SE-L(:C,O"

WI(%)3 OE.Y1CE
MODULES TO OflTI'lN PKOP{'~
CODes.

FIRST U~£)C~(,PTIC ...... OOEl

~ <t i ':

II
,en

UN(.ESS OTH£HWI5( SPECIfIED
OtMt .. "1ON

"'1 IfiK;KU

TOLERANCES

}
~

DIe.......
~ 001

It''''''

fRACTIONS
~ 1!1ot

oUICILU
2:

flfICA1.. IUR''''C! QUALITY

kllUt! An~ C::UIt.

U I PM EN T

j.IQ~i=:=----t;~~fnTliTl~f·i~~=-=:T:=-Y::::-::.:;,.,,=oC:=o=:~~·~~"~:~:~~·~:::;~~;;;;I.c;;...,~.;;...'1 A
UNIT
CHANNEL

CQltJliERS

FINISH -~t'----.,.-•

'-J a

ITEM
NO.

PAlITS UST

l~'-

PAJrT NO.

DESCAtPnON

LTI9 -1\

----_
...._........

..... 0.-0 _ _ - - - .

::.. ..-:.::...................

~IMQIIIIIII ................ • .... -

CL'R rOT
/ CONTROL

fAOJUST FREE ~UI'fNINGl
LPERIOO TO 4.51& MS
L

w¢t15
81/

XMTR

RE:CVR
FL c; 4-

F1..6 ..

W7¢7 -~~ PROG I NT RQ
A81'i~ A H
P~M

lOT 4!i1~1

l<MTR AP103 RQ (6)

1,'1

TC.L.O

lOP 1

XMTR

lOT 41'2 (I)

at:.
SF

I,b Bus 17
-~ RCL~

81'

If:! BUS 10(B\ ~L.
Tb BUS 17 (B) Ai

tl~

BJ
rv

BI<

8U'5I(o

BUS I:' (B)

J,b Bl)~ 14 (8)
Ib BU':> Isle.)

AS!!.'!-

ElL
BM

DS3B

053
054B

At'

Th 8U5 l2-lB)

*05
WIlD=-

OS's

TSO

1):> BU~ 1\ (6)

L-------------'II'A B 1.j,

DSf)

\'\vR elI". (e)

ro BUS \~ (B)

Will 0 '5

RCLO

rio P'wR CLP. (B)
D

f· ')

lOT 4/c,Z (I)

+ 3.(oV

lOT 49<04

1 Ni

+-3.c..V

,LC,4

lOT 4~~~

TOT 40lDa

fORoe,

RrCVR API (l) 3 RQ (Bl

f--

TO Ii'!' U"IT

Sf'

...J

B'3

DSS

SPit>

SPI

(J..Ml~ DS)

NOlES:

(~t:.CY~ DS)

APPROPRIA.'£

MUST

REMOVED

DEvICE

S'ELE.CTOR
51:L t:.c\o~

DIODES
FRO'""
W 1~3

MODULES

TO OBTAIN

P~OPL~

ccm:s.

FtR<:,T USfDONO"::T,0N/MC,Ot.L

PART NO

LTI9-A

PARTS UST

/,;ATERIA!.

I
fiNISH

•

A-ML- LTI9-B
. CALE

ITEM
NO.

_-_
--

...... ........................
_...-..
-----.....
.......................
_..._--

~ - 8-Slll

• "nN

- -,
I

o
r-;::--:;--1-2D_~-I> RC\..O

elR rOT
CONTROL~O~-~~~-----~~~~~~

rADJtJ~T FREE RIJNNl'NGl
LPERIOD TO ~.5tl1 MS

I...

wees
61'1

w~~

619

XMTR

RE'CU~

F"LG S

F'"Lc"S

A~ PROG

lOT 4lZ2l1

INT

lOT 43"'2 (I)

I-'A'--'--'.H=---_ _ pe, M

XMTR

RECVR

API 03 RQ

(B)

+3-"11

RCLO

rOT 42~a

1" 3.<oV

I/O '"wR CLR ('8)

If:J r.US '~ll:!.\

1,.C BU~ " (s)

lOT 43~Z (I)
PoVRCLfl. (I'»

TSO

.-<

rp BU~ lZ-lB\
ttl BUS 1"3(B)
1.,b BU~ 14 (5)

IP BUS Is~a)

¥:> au:;) l<ala) ~BL
l.,b ~us 17l~ Ai

os III

os \

WfJ70

DS2.S

618

iSO

DS4B

psM

DS4

RRE.

OSSB
DSS

••

8'11

NOTES:

APPROPR1.1~TE

DIODES MUST BE
FROM
W 103 DEVICE
S~LE.CTOR
MODULES TO OBT,..lN ~oPt'tl.

(~M"TR os)

REMOvED

5E.l E:C ,09\ COD~ S. IOT DEVIC!
SELECTION CODES liRE oPTIONAL.LY
ASSIGlNIIBLE ;ROM srANEMRD PD'F'-~
DE5IGJNATION UST. (SEE L; I '-11 FOR
ASSIGNABLE LISTING)
SUB DEVICE SEL.ECTloN CODE IS NOT
ASSI~N£O TO
UNIT AND MUST BE
JUM'P~EO !N Ir REQUIRED •

nils

.....,r-r-~-:--T"-T'--,--r-----------

- - - --- .----

----

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

TO -riY UtHT

MASTER DRAWING LIST

R..

....
52

u ..

K"
':;~

!i
0.=
'Oa

€~ g

el:i
a.!:~

DWG. NO.

REV . NO. OF
LET. isHEETS

TITLE

A.,.ML-LT19-A

REF

MULTI-STATION TELETYPE CONTROL

D-BS-LT19-C-l
D-BS-LT19-C-2
D-BS-LT19-C-3
D-BS-LT19-C-4
D-B8-LT19-C-5

8
8
8
8
8

1
1
1
1
1

TELETYPE CONTROL UNIT CHANNEL 1
TELETYPE CONTROL UNIT CHANNEL 2
TELETYPE CONTROL UNIT ClffiNNEL 3
TELETYPE CONTROL UNIT CHANNEL 4
TELETYPE CONTROL UNIT CHANNEL 5

£! 3.
~~!

~i~

Ci"a:;

'::00

t~i

~'2 E

<E~~

r~o

~.!!

'0":1

;! 0
~1S
!
-C:

~~ tf:

'O-:i'5

.....
~~~

DATE

DRN.

REVISIONS
REV.

OATE

CHG. NO.

APP'O. CHK'O.

1/ 1.,1.1.°
11/9/71

LT19A-l

R.D.

LTI9A-3

0/14/

JACKSON
J. M.

DATE

PFYFFER

0/22/

E-{~[···th
Ii{.
j_ ...'

D,\TE
'1-b.~

1/ -

Sfi~~~~DE QUI PM
T
'.'
":'~~~;?~A~~I.~~

- TITLE

TELETYPE INTERFACE
LT19-C

I~~~t.~ 1/1- .(J
OAT>

PR~bM DjJ&ft,
II (;, Vv

FIRST USED ON

LT19-A

SIZETOO,

A ML

SCALE
SHEET
gEC FORM NO.
RA 103

•

DIST.

NUMBER

LT19-C

REV.

I I I I I I I I I I
l(,

----_
- . -.-.....................
""""'--------

II ~..

...................... ....... ., .......

'wJ.MI I

I-J-tlll &012

.'''''N

-----,

r----'
wee."

01"'

I
I

L l!.. __ .J

r~'-::"""""1-f°1-""'-o RC\..on 4tDQI N&
+3_" YOLT:!J

rAO~UST FREE RUtiNIN~l
~---

LPERIOO TO 4,50 MS

CLR IOT

I CONTROL

rOR L T ,qC UN'TS ONLY
REMOVE: i.2 K
RESI5TOR
AND ADJUST RCLO
FR£QUE:NC. Y TO 2X BAUD RATE:
E.G 110 BAUD 15 E.QUiVALENT CfMSEC./6IT
THEREf"ORE. 5ET RC.LO TO 4.5MS

Iwecas
:
LJ)l":l. __ .J

XMTR
PL(;,I

OPt

tNT

:tOT 41\b I

F _c,

mC\'R API <;Z)3 RQ lSi

XMTR

rLG

1.P t!.v~ II

I/J BUS Ie
1P Bus 1'3
cr
~l,b Bu~ 14
co
lP BUS 1'5
DO

~ BUS I~ (B)

I,'(U~,U~ I I (B)
~ BU~ lalS)
r,b BUS I'! (13'!
BU~ 14(5)

~'L-o!,b suo;:. lfi>

¥:>
rp BUS IS~~)

~ BUS 'colB)

Ib BU~ \16

RCLO
lor 41!ZSZ(I)

IIO PlJR ell>, (8'\

LOT 410\4

r:-. ' ....
I

"'3.'" V

+3.r..V
-l>

: '.: T

~- ';=( ~--;c

l-MTR

IP Bu"" 17
RCLt:

ilL

~ BU~ 17(5) ~:

F'OR LTI~-B
UNIT ONLY

i~W0 '2.3 --:-WA~5IT CABL£l
I 013
7r1J~5717
I

W~'70

DI3

ISO

psM

R.R~

I
I

U5ED ONLY C

ION rHE
TO TTY UNIT

ILTI9-C'

/WI

<10V

I
NOTES:

APPROPR1~TE

mODES MUST BE
F'ROloll
W 103 DE.VIcE
S~LE.CTOR
MODULES TO OfoTA1N PROf>t~

REMOVEO

.sE..L~C'OR

..... THEsE.

CLAMPED LOADS ARE:

JUMPERt:D

IN rOR·CUNIT5 ONLY NOT WI~E WRAPP£O

cooes •

OPO .....--=~
~IRsr

USED,)'" )PT:C~.,MOOfl

DESCRIPTION

L TI9-A

fiNISH

or I

SHEET

PART NO.
PAlITS UST

_ _ _ _ _ _ _ ...J

ITEM
NO.

_,---_
--

8
...........
.....
_
.........._.,_
""' .....
.... ..
........................

~--

~.~

-----,

,- -wi·'i
0221

_...J

CLR lOT
, COHTRO~·-.P

rA~OST rjq,EE RUItNINC.l
r---

I
IWeClS
LJ)U.

[!'E'RtOO TO 4.S~ MS

CLR lOT
~~~------~~~~~~ZCONTRO~~~~~~~

'I.Oi <\~Zl

f"OR LT I QC UNIT5 R£ MovE 1.2 K
RE~\STOR ANO ADJU~T RCLO
rREQUE.NC.Y TO 2X BAuD RAT~
E.G. 110 SAUD IS EQU \VAL~NT 10 q M~~\T
THER£FORE. 5ET RCLO 1'0 4. 5 M<?:l.

lOT <HZ\

wtS¢s
02e

I"
W¢tJ5

"D2.2

R.E.CVR.
FL..Ga

XMTR

FLG2

i-~·i~¢5--~
D22
I

PSM

DPI

:_If _~ _ c.:

IOi

['RC':·

l~:i

~:.Q

x\,\iR
RR.~

101"1

Lb BU~ \1Il
+ 3.IQV
IIO Pi.J~ eLf'; .6)

1,b 'e\l~ \I
IP au"" \'2

ToT

I,b BUS 13
1,b au'!> 14
~--<> Ib BU~ I;;
Cv
1P au'!> Ir-

r,b BUS 191 (B\

1;0 BUo:. I I (B)

T,b BUS 1c.!B)

rp BUS 1"3 (e)

DS¢ B

J../':J BtJ~ 14 tB)
IP BUS IstS) Of
1./0 BUS IlCtSI J? L
IP BU~ 17lB'l ~~

Of"

DS0
DSIS

IP Bu,:> 17
RC\...~

r-______________________~D~\...~~A

I D 2.1

I
, W~23

TO "TTY UNIT

Of'

os
O'T

~A~A SET CABl~:

luSED ONLY E
ION rHE
LTi9 C
I
-

SOl

,- ----

APPR.OPRl~TE

DIODES MUST BE:
F"ROWI
W 103 DEvICE
SELECTOR MODULES TO OSTA1 .... PRopt.~
.5E.U:C,\01\ COOt::5.

('XM"~ os)

REMOVED

DPO

.. u

f--

I~
)

NOTES:

C\J

DPI

•

7005717

.....
-----_
....
......................
..........
.................
-8

hfI ...... _ _ _ _ _ . . . . . . _

...

1- w_!fI
I
o

api
I
I

° '- K_ - ;C\..OIL 4a1t1 N&
't3.(. VO\'T~

/AOJUST FREE RUHNIN~
j!»ERIOO TO 4·~fII M~

c~roT

I\.'
Iwe.s
~
L ~~~ __ .J

FOR L'T 19C UNli~ ONLY
RE~\STOR

~NO

c 1, BAUD R.A.TE.

~OJU5T

c~lm

I CO/'#TROL ----=.°"(lL::=..;,....:..::=.:...,-J------'-"'-tlI.=...::...:.......;,,;,..:.;;-,-IZ COl'tTROL ~---""T'"'"

r----..,

REMOVE 12K.
RCLO rR£.QUEN.c..y TO

RECVR FLGS

iw~~-~
I
89'3
1

E.u. 110 BAUD IS EQUIVALE NT TO q M~/B\ T

THERLrORE. 5t'T RC.lO TO 4.~M5.

--<"

PS M -'L_..
.;;:-.....;~;;;..;;:-'+"';..:.J_ _

L-rO:::=;:::-z=r"!:T:-'

['HOG

INT RQ

xMTR

FlG 3

IOT
;:(EcvR API

XMTR API

lOP I
a:OT'1042.

lOT '1142.
I/O P\.J" CLR (5\

__ W~05

BJ
BI"BL
8M

'iso~:
RRt:.

8'5
a'T

-6\1

TO "TTY U~IT

B~c

1 USED

DAT-A: SET CABL~
70057/7

ONLY

ON THE

LT/9-C

NOTES:

D10DES MUST BE
REMOvED F'ROl'll
W 103 DEVIcE
SELE.CTOR MODUL ES TO OeTAIN ~OPt.'il.

JUMP£.RtD

.5E.U:C"'iOl\

IN rOR "C UNITS ONLY (NO,. WIRt. WRAPPLD).

APPR.OPR1~TE

(f\ECVR D~)

ARE

1- - -

i W0e3

psM

(~M,t\ os)

IP BUS 17

W,,70
Bql2.

LO~O

1,6 8U<;, \4

If:> BUS IS
IP BU'.!o \<0

CLAMPE.D

l/:> BUS 1'3

J)J BUS 15tB) B f
'lb BU::' I~ls\ ~ L
lP BU~ 17lUl AT

BF'

*". THESE

IP BU"" 1'2

1\1'

T.P BUS 1'3 (8)
'IJJ BU~ 14 (s)

6t.

SD\t>
SOl8

'If:> B\)~ II

1;0 BU~ la \6)

L ___ -.-J

DSS

IP BU~ Ie!

r.P BUS II (6)

L -_ _ _ _--"j=l)~ B~JI

RCLO

TSO

I,b bUS If! (B)

1.0"\'414~

RR.~

lOT 4142 (I)
I f r f'IoJR CLR (B) BY

+ 3. <0. V

1-----.

c
"3.(,11

_..J

COOt:S.

I1DI

DESCRlI'11OH

110.

PAIITS UST

r..... .

-.-~]

e QUI P MEN T

~~~~--I.M-.u....tmLi~~'=_=.:_=·:=-:;;-=-='=.~:~.~~~~~~::::!~.R~...A: :-c;~ul" .?_.':'_."1 A
TTY CONTROL

UNIT
MATERIAl.

FINISH

CHANNEL-

--- -...........
...
--.......
.._

..,..........................
.. ~-...

.....

11 - :)61..:.. ;

"..

~...--

r--- .,

w.~~,

81..1,

- -,

rWH5
I

Boll.

~_.J
rT.,-;:"'--"}-!:~.4,.:~ RC\..oIL 4(t)al NS

CLR rOT
rAOJUST FRE£ RUNNINcal

LPERIOD TO 4-.51D hiS

I C.ONTROL

UN IT 5 ONLY REMOVE 1.2. K
F:-.NO AOJU5T RCLO fRt:QUENt'(
o ax BAUD RATE
[G. 110 BAUD \~ EQLJIVALE.Nl TO 9MS/BIT
HE:R(.FORt:. ~t.T R<:lO 10 45 M~.

FOR L T I qC

wf/J~S

~ES\STOR

811

r l.

DPI
PSM - - -.........----:::1

~rn::...r,~

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ITEM
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7005717 I

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MASTER DRAWING LIST
DWG. NO.

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EC FORM NO

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NUMBER

I EI
REV

I I I I I I I J 1

DIGITAL EQUIPMENT CORPORATION

QUANTITY /VARIATION

MAYNARD, MASSACHUSETTS

MADE BY
DATE
ENG

DATE
ITEM

NO,

PARTS LIST
J. FERGUSON
8/6/69

CHECKED

PFYFFEH

DATE
PROD

Fi/ 12,/., ; ')

ISSUED SECT.

C-MD-5302~SJ-O-O

T'A "~:~I.

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FIRST USEDON OPTlO~"'ODEL QTY.

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PART NO

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~~----------------~~~~=s~u=~~J-----------~-;

DIGITAL EQUIPMENT CORPORATION

QUANTITY /VARIATION

MAYNARD, MASSACHUSETTS

PARTS LIST

MADE BY

CHECKED
DATE

DATE
ENG

W>,,-

<I.,,, _

SECTION

6', I

DATE
ITEM
NO.

"1'

ISSUED SECT.

R401

VARIABLE CLOCK

R002

DIODE NETWORK

222

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NAND GATE

5107
51/.3

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5203

TRIPLE FLIP FLOP

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TELETYPE CONNECTOR

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THE LTl9F OPTIONS S'IALL nE

ASS IGNED TO TIlE 1.0 bEST C1'-'ANNEL NUH8ERS

TITLE

MODULE UTILIZATION
DIOC FORM NO.
DRA 110

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CONVeRTER

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r--- . . "'

_OS4(8)

OS5(8)

111185

:><

R4BI

R401

I,ll"

1lIlI5

lOT 2 OS3(8) DI0K

CONT

41Bl
f---lOT

IOT I OSI(8) 101~US TSOI
rONT r--+----t

3.5Y

lOT
TTY

CL R
,R)

~
181 (I)

~
~

ReL!

Tell

RCL2

TCL2

TSOI

PsMI
--=---

~
h CvRI
A

NOIE:
CJ) DESIGNATES

1ST

OPT 10NAl

LTOSE

(I)

~ DES I GNATES

2ND

OPTIONAL

LTOSE

(2)

OJ DES I GNlTES

3RO

OPT IONAl

l TOSE

(3)

@ DESIGNATES

4TH

OPT 10NAl

l TOSE

(4)

5TH

OPT IONAl

l TOsE

(5)

DESIGNATES

'JF. LTlq-F
",

)j( >if

ONLY
Wrt;70 OR W~761 CR V,;'7;"

DI,.[~s.ION

IN INCt-in

TOLERANCES
DECIMALS
j:

fRACTIONS

005

1'64

ANGlES
~

0·30'

ft[wO:t:~Jt~ft~~;( a~~~T;Hi,.
CORNERS

MATERIAL

(E OR F)

'* *~ Wr!JZ:, OR :,;;'28

ANISH

+-t--

i'\-f'''!L~ LTI9-D

SCALE

SHEET

REVLTR

DRWG NO

K-WL- LTI9-0-4

C
~

, ,

or
lor o-l o~
o~ ow Ig,~

l.,..) . . .1;

,-'::0
! UJ

°
NI 0
-I

' \ IIfJ -

I;~~- ..t- rS-0
I

.....J ~

\.:.

DRAW~

(K.T· '\

DA7

(

3l ~"\

DATE

, CHECKE9
,1

"r}j ,::,,' ty!"r
ENG

PROJ ENG

GJ -( !
DATE

(.)1

, / ' / DATE

m~~~~~g

FOR

'-,>.

r~~
'--.J

DWG.NO.

I SHEET I

:0
jTj

(j)
Z

(j)

IT!

z(j)

REV LTR

K WL LTI9-D-4

FrLE~

TAPEf:1:.

SIZE CODE

()

LTI9

EQUIPMENT
CORPORATION

SCALE

111

WIRE LIST

ASSY NO

.0./,'Q(.\..t 9/1!/l.~9

(!5

::0<

TITLE

MAYNARD,MASSACHUSETTS

DATE

.PROD

'-11"'11

'-(

DISTj

l 1

1 I

..)

.-1-

;:;.,

VALUE

POL.

FROM PIN

COMPONENT NAME

TO PIN

:ESI S~WR

7.5 K 1/4 W lOj'.

B28E

B28A

"ESIS'LOR

. ':

D19R

D19T

"EST STOR

-k

D20R

D20T

POL.

u ..

E '"
D..c

'5 ....

.....
<7'"

-t

!J",

iilD.

Co
~.,

g~ .2
e~ ~

RESISTOR

7.5 K 1/4W 10%

RESIST0R

"i'';

"ESTSTOR

..'"

RESISTOR
:.ESISO'OR

B28N

C28A

D27R

D27T

.),

D28R

D28T

7.5 K 1/4 W 10%

B29E

B29A

i':

B08R

B08T

-),

B09R

B09T

~.= ~

f~ ~

~~ ~

ii!

RESISTOR

~~
E
U u ..

RESISTOR

7.5 K 1/4 w 10%

B29N

('29A

RESISTOR

.:,

.:.;

B16R

B16T

c:",'"

RESISTOR

-.'..-

B17R

B17T

Bl0E

B30:\

,ce2
~oj
~::::J~

~eo
V)a.Q.i
"O~'"
t'CI.Q

~g ~

~~ ~

RESISTOR

7.5 K 1/4 W 10'70

.s::.c:'"

RESISTOR

..Joo.

RESISTOR

'O~~

!!!"O C

t- .. E

NarES:

..',:

B24R

B24T

B25R

B25T

JIlL

......

REFER TO BAUD ~TE TABLE FOR RESISTOR

VALUE AND PIN ~TTERS. (A-CP-LT19-D-8)

DRN

REVISIONS
REV.

T
-

CHG_ NO.

DATE

f-.

APP'D.

1-6 -70 1 L T I 9 0- { ()
I-----_
00001
.. .- I ' ;-'

----.~,

(lA.TE
1-21-6~
DATE

G. l1ARINI
CHK'D

AL PFYFFER 8-12-(,(
ENG

J-z.

DATE

-11-69

DIETER

DATE.

PROJ. ENG

,. DIETER.

9-11-(;

PROD

~n~nDmD E QUI PM E NT
• -'
•. ' ::'~~~MC:s~.~~I.'?r::
-.

TITLE

EXTERNAL COMPONENT
LT19-D

DATE

.D.CALL

LIST

FOR

9-11·-(·

Fir,ST uScG eN

S!ZErOD~1

A-ML-LT19·-D
SCALE
SHEET
gEC F{1RM NO
RA 106

A cr

NONE
1

DISl

REV.

Nu,"WER

I,.T19-D-5

1'\

,.........

I I ]'-rT-To ] 1 I I

DIGITAL EQUIPMENT COltPORATION

ENGINEERING SPECIFICATION

MAYNARD, MASSACHUSETTS

TITIl1E

ENGINEERING SPECIFICATION
TiTlE

DATE

CONTlNUATlor~ SHEET

LTl9 D, E, F, H, Multi-Station Teletype Control and Interface

7/14/69

LTl9 D, E, F, H Multi-Station Teletype Control and Interface
Each LT19D added to a PDP-9 will accommodate up to five
teletype control units (LTl9E's). The:;e LTl9D control
units contain logical elements which are functionally
similar to those of the PDP-9 standard teletype control.
Instructions and programming considerations are, therefore,
similar t~ those of the standard unit.

REVISIONS
DESCRIPTION

REV

/CHG NC

ORIG

DATE

APPD BY

lb.! I~P.-I-i ___
DIET~R
_A_r-- _______________---P.0c.::0:-;:O::-:O""'
~

oJ I, I 'L
\-(0-70 l ,U..:.':]

_B___ I - - - - _ _ _ _ _ _ _ _ _ _._ _ _ _ 5~

8-4-7C ;(~[)

_-==__

DATE
!

(,·;0

Optional Teletype Control with Standard EIA Level Converters
(Type LTl9F)
The LTl9F is a group of standard DEC log it mod'lles ....hich,
when inserted into the appropriate locations of an LTl9D
constitute a single independent teletype control (exactly
the same as the LT19E specified above) with standard EIA
level converters. Thus the LTl9F may be directly connected
to input/output devices using standard .EIA logic levels,
i.e. dataphone.

ENI:;

APPD J,'1.;'"',

R. Dieter

lOEC FORM NO.

NUMBER

6-,}.1 (7i~

LT19-D-6
SHEET --L OF

lORA '107

EN(;INEERING SPECIFICATION

-.UL

CONTINUATIOt~ SHEET

~.--------------------------------------------------------.----;
TDllE LTl9 D,E,F ,II Multi-Station Teletype Control and Interface

DEC FORM NO
ORA 108

SHEET _2_ OF __

ENGINEERING SPECIFICATION
TITLE

!2..

CONTINUATION SHEET

LTl9 D,E,F,H Multi-Station Teletype Control and Interface

1.0

Multi Station Teletype Interface (Type LTl9D).

1.1

Addition of the LT19D option to the PDP-9 expands
the machine's teletype facility to accommodate up to
five optional teletype control units. The LT19D consists
of the following:
a.

The LT19 D,E,F system consists of an interface to
the processor (LTl9 D) and up to five teletype
control units.
(LTl9E,F).

Two standard 19" DEC Type 1943 mounting panels
(c~mpletely bussed and prewired for PDP-9
10 Bus interfacing and the insertion
of up to five independent teletype controls,
LT19E"s or LTl9F's defined below).
All of the logic modules necessary to
interface the control units to the
standard PDP-9 10 Bus.

One to five optional LTl9E(F) teletype control
units may be added to each LT19D interface.
1.2

Each of the LTl9E(F) control units (up to five may
be used) is optional - directly pluggable i:nto the
LTl9D interface.

1.3

The LT19D is packaged in two standard DEC #194119" lOgic IT'ounting racks. Up to five LTl9E(F)
control units may be plugged into the LTl9D logic
racks.
(lO~" of mounting space is required).

Optional Teletype Control (Type LT19E)
The LT19E is a group of standard DEC logic modules
which, when inserted into the appropriate locations
of an LT19D, constitu~e a Single independent teletype control with the following specifications;

* bit character codes.

five or eight

one unit start code.

1, 1.5 or 2

Full duplex operation

Speed variable to 30 K baud.

MaxUnurn signal transmission di5tance is 2000 feet with
teletype units, 250 feet ::m LTl9F units with LT19H option.

LT19E teletype contr~ls may. be used with ASR, KSR,
RO or SO teletype units.

When the LTl9D, E (F) options are added to c PD?-9
system, these 1943 logic mounting racks must be
added to the system as shown in section 4.0 and
all neces3ary cable connectors and power wiring
should then be added.

* unit stop codes.
1.4

The LTl9D,E,F,H options operate reliably ~ver the
temperature and hwnidity range specified for the
processor. Each L'l'19D,E,F,II optional system is
powered from one standard DEC #728 Power ,;upply
mounted on the back door of the bay in which the
LT19D,E,F,IJ system is m::>unted. t'::> special p:)lver
cClntrols ::>r fan assernblies (other UL<ln tL:Jse
necessary for the multi-bay system) are necessary.

* Standard unit

NUMBER
LTI o_p_.,
DEC FORM NO
ORA 108

SHEET _3_ OF _19

DEC FORM NO
ORA loa

REV

SHEET _4_ OF .19_

CONTINUATION SHEET

ENGINEERING SPECIFICATION

TITLE L'I'19 D,E,F,H Multi-Station Teletype Control and Interface
f---

1.5

COI~TINUATION SHEET

LTl9D,E,F,H Multi-Station Teletype Control and Interface

TITLf
~

General Performance
2.0
A general description of the LT19D, E opt:.on is
given on page 4-31 of U.~ PDP-9 Users Handbook (F-95)
a.

The LT19D,E,F,H systen: may use standard teletype units
(ASR' s, KSR' s, RO' s, SO's \ and/or star.dard EIA
level operated input/output devices i.e., dataphone
interface. All of the above teletype equipment
and EIA level operat.ed equipment are standard
D8C peripheral devices which have DEC Purchase
Specifications. Therefore, if specifications are
required for any standard DEC input/output unit,
it may be obtained from the Purchasing Specifications
List.

Teletype operational characteristics
(I)
five or eight* bit character code.
(2)

one* unit start code.

(3)

1, 1.5 or 2* units stop code.

(4)

Full duplex

(5)

Up to five teletype units per L~n9D.

(6)

Speed

(7)

Maximum signal transmission dis':ance2000 feet for teletype units, 2'50 feet
for LT19H.

Vendor-Supplied Equipment Specifications

opera~ion.

30,000 baud maximum.

*Standard unit
I.E

Overall Speed
A limitation has been placed on the overall speed of all channels
combined so that normal service routines may handle all channels
simultaneously. The limit is 30,000 baud f~r a11 N channels combined.
where N = 1 to 16.
The highest speed channels should be assigned to the first channels
in a system to keep the skip chain short and in a multiple LTl9D
system, all the high speed channels MUST come first to prevent a
low speed channel from locking out a high speed unit.

1.1

r----·---------------------------------r.ls~AI~Z~EII~c~sO~pD~E:TI----~NU~MAB~EDR----~R~Evv1
.

LT19-D-6

ENc:;rN'EERING SPECIFICATION

CONTINUATION SHEET

--------------------------------------------------------------------TITLE
LT19 D, E, F,
Multi-Station Teletype Control and Interface
II

3.0 lOT Instructi::ms

The following device selection codes have been assigned
for use with optional teletype units:
Teleprinters

Keyboards

7040-7042-7044-7046--

7041-7043-7045-7047--

)1'

SHEET _6_ OF J~_

DEC FORM NO
ORA 108

ENGINEERING SPECIFICATION

CON,rINUATION SHEET

LT19 D. E, F, H Multi-Station Teletype Control and Interface

TITLE

3.7

No status bits are assigned to the LT19 0, E, F, H
system.

j. b

Timing diagrams for LT19 E F teletype control ,!re
presented on pages 3-9 (receiver) and 3-7 (trilDsmitter)
of the LT19 Instruction Manual (Note that the manual refers
to the LTl9 A, B & C - The timing is correct for the
LT19 D, E & F) .

3.9

The LTl9-E/F Channel assignments should be made according to
the following tables:

In addition to these device selection codes the standard
PDP-9 sub device selection lines (SDO, ~Dl) are also
available for assignment. As a result, the device selection
codes listed above represent 32 possible devKe.codes.

TABLE 1: 1 to 5 UNITS~ 1
UNIT
#

Teleprinter lOTS

TRAN 8MI TTER
CODE

LT19D
RECEIVER
CODE
xx4l~x

1
2

xx4~6x

xx4l2x
xx414x
xx4l6x

xx42~x

xx43~x

Clear teleprinter flag e.g.,

70400~

Load teleprinter buffer and
transmit character e.g.,

704001

TABLE 2 : 6 to 10' Units~ 2 LT19D'S

~eyboard

lOTS

Skip on keyboard flag e.g
Clear keyboard flag and read
the keyboard buffer e.g.

704001

70 4101
704l0l

USE~S

no special maintenance

3
4
5

UNIT
#

TRANSMITTER
CODE

RECEIVER
CODE
xx4l0x
xx4l2x
xx4l4x
xx4l6x
xx450x

xx4~~x

xx4~2x

3
4
5

xx40'6X
xx440'x

xx4~4x

xx42~x

xx43~x

LT19D

3
4
5

xx422x
xx424x
xx426x
xx442x

xx432x
xx434x
xx436x
xx452x

3.2 ~cecial Maintenance Instructions

T'he L'l'19 D, E, F, H system
i:1structions.

xx4~4x

LT19D

Not, used

UNII'1t

xx4~~x

Skip on teleprinter flag e.g.,

LT19D
#1

LOGICAL

xx4~2x

1
2
3
4
5

3.3
3.6

NUMBER
1SAIZEJCs~DEII LT19-0-6

SHEET _5_ OF .JjL

DEC FORM NO
ORA 108

LOGICAL
UNIT #
1
2

3
4
11
5
6
7
1~

No speci'31 data formats, proqramming considerations
operator controls, or indicators are necessary for
the LTl9 D, E, F, II system.

DEC FORM NO
ORA 108

SHEET _7_ OF _I~_

SIZEJCODE I
SI'

IA
DEC FORM NO
ORA 108

NUMBER

LT19-D-t,
SHEET

OF~

CONTINUATION SHEET

LT19 D, E, F, H, Multi-Station Teletype Control and Interface

TITLE

TABLE 3:

11 to 15 UNITS;

ENGINEERING SPECIFICATION

ITLE LT19 D, E, F, H Mul ti-Stati::m Teletype Control and Interface

3 LT19D'S
4.

IT19D
#2

LOGICJl.L
ONITL

Installation Data

TRANSMITTER
CODE

RECEIVER
CODE

xx4~~x

xx41~x

2
3

xx4~2x

xx4~6x

3
4

TO bl.s.

4
5

xx4l2x
xx4l4x
xx4l6x
xx470'x

1
2
3
4
5

xx42~x

xx422x
xx424x
xx426x
xx462x

xx430x
xx432x
xx434x
xx436x
xx472x

5
6
7
1<J

No special action need be taken (either in shipment
or during site installation) to install on LTl9 system
oU1er than that required for the basic processor and
standard teletype ur-its.

1
2
3
4

xx440'x
xx442x
xx444x
xx446x
xx464x

xx450x
xx452x
xx454x
xx456x
xx474x

11
12
13
14
17

UNIT
#

I,T19D
#1

CONTINUATION SHEET

~----------------------------------------.-------------------------

1 T19D

xx4~4x
xx46~x

TABLE 4:

16 UNITS;

The LT19 D, E, F, H system is packaged in a standard
PDP-9 19" optional cabinet. The standard LTl9
:sy:stem operates at very slow frequenciE!s and, therefore,
may ~e located at any place along the standard PDP-9

General infor~ation on the physical locating of noncritical
::Jptions (when assigned to a PDP-9 syste'm) is contained in
Chapter 4 (Mechanical) of the PDP-9 Sales Notebook.

4 LT19D'S

ThS setup' for the first three !'T19D' S would be as in TABLE 3.

LT19D
11=4

UNIT
#

TRANSMITTER
CODE

RECEIVER
CODE

LOGICAL
UNIT #

UNUSED
UNUSED
UNUSED
UNUSED
xx466x

UNUSED
UNUSED
UNUSED
UNUSED
xx476x

2,O

2
3
4
5

Note:

When the system includes an LT15, it becomes logical
unit #1.

SIZE ICODEI
I
DEC FORM NO
ORA ~o'!'_

5.0

IZE IGsOpDEI
SA

NUMBER

1 LT19-D-6
SHEET

ENGINEERING SPECIFICATION
TITLE

-.L OF .l2..-.

CONTINUATIONI SHEET

LT19 D, E, F, H Multi-Station Teletype Control and Interface

Interface Specifications

ENGINEERING SPECIFICATION

6.0
6.1

All connections fr~m the LT19 D, E, F, H system to the
basi~ processor are made through the standard PDP-9 10
bus. No special cabling is needed for the system. The
::Jpti::Jnal teletype units (::Jr EIA standard level units)
are interfaced to LT19 D, E, F, H system as stated in
Section 7 (System Comp~nents). The single control cable
and its termination module are standard units which are
delivered with the optional input/output unit.

6.2

6.3

CONTINUATION SHEET

LT19 D, E, F, H Multi-Station Teletype Control and Interface
Master Drawing Lists
LT19D
Drawing No.
A-ML-LT19-D
C-UA-LT19-D-0
A-PL-LT19-D-0
D-BS-LT19-D-l
D-BS-LT19-D-2
D-MU-LT19-D-3
A-PL-LT19-G-3
D-AO-7006452-0-0
A-PL-7006452-o-0
K-WL-LT19-D-4
A-CP-LT19-D-5
A-CP-LT19-D-8
LT19E
Drawing No.
A-ML-LT19-E
D-BS-LT19-E-l
D-BS-LTl9-E-2
D-BS-LTl9-E-3
D-BS-LT19-E-4
D-BS-LT19-E-5
LT19F
Drawing No.
A-ML-LT19-F
D-BS-LTl9-F-l
D-13S-LT19-F-2
D-BS-LT19-F-3
D-BS-LTl9-F-4
D-BS-LT19-F-5
Note:

6.4

NUIIBER

LT19-D-6

SHEET ~ OF _19 _

DEC FORM NO
ORA 108

TITLE

LT19-E{F}-1
LT19-E{F)-2
LT19-E{F}-3
LTI9-E(F}-4
LT19-E(F)-5

LT19E
Drawing No.
A-NL-LT19-H
C-IA-JD05891-0-0

DEC FORM NO
ORA 108

No. of
~

Title

Multi-Stati~letypE! Control

Teletype Control
Teletype Control
I/O Bus Interface Logic
I/O Bus Interface
Module Utilization
Module Utilization
Wired Assy
wired Ass}'
Wire List LT19
External Component List
Baud Rate Table

1
I

1
1
I

1
1
1
1

No. of
~
I
1

1
1
1
1

!.!:.1k
Teletype Interface LT19-E
Teletype Control Unit Channel 1
Teletype Control Unit Channel 2
Teletype Control Unit Channel 3
Teletype Control Unit Channel 4
Teletype Control Unit Channel 5

No. of
~
1
1

1
1
1
1

Teletype Interface LTl9-F
Teletype Control Unit Channel 1
Teletype Control Unit Channel 2
Teletype Control Unit Channel 3
Teletype Control Unit Channel 4
'l'eletype Control Unit Channel 5

1st optional
2nd optional
3rd optional
4th optional
5th optional

teletype control
teletype control
teletype control
t_eletype cor.trol
teletype c::Jnlrol

No. of
Sheets

-I-I

Data Commllnications Interface
Data Communications Cable

SHEET

-1£ OF JL.

ENCjlNEERING SPECIFICATION

CONTINUATION SHEET

TITLE

TITLE LT19 D, E, F, H Multi-Station Teletype Control and Interface

7.0

System Components
Basic system componentc: consist of the LTI9
D, E, F, H
control logic (located in an optional llay) and up to
5 teletype units or EIA level operated units for each
LT19D control. The optional teletype units or EIA
units are located remotely fron: the PDP-9 system. A
single control cable interfaces the remote unit to its
control in the PDP-9 system. This cont~rol cable is
t~erminated \-lith a standard DEC
cable connector
module which is inserted in its assigned location in
the LT19D mounting panels (see module utilization print
D-MU-LT19-D-3) .

7.1

ENGINEERING SPECIFICATION

LT19 D, E, F, H Multi-Station Teletype Contr':ll ':Ind Interface

7.2

No special power controls are necessary due to the addition
of an LT19 D, E, F, H system other than those required for
the optional bay configuration. One 728 power supply must
be added to the back door of the optional bay for each
LT19 system interfaced to a PDP-9. See table beh)w.

7.3

An LTl9 D, E, F, H system is interfaced to the PDP-9
processor through the 10 Bus and to input/output devices
through connector cables supplied with the optionill unit.

7.4

As stated in Section 2.0 vendor-supplied equipment: which
interfaces to the LT19 D, E, F, H system is standard and
DEC purchase specifications for all units are available
from Drafting.

Modules needed to implement the multi-teletype control
are as follows:
LT19D

CONTINUATION SHEET

J.~V~D With

+lOV
-lSV

(PDP-9 interface only)

_. l-LT19E

1.47A
1.SBA

--·r

2-LT19E !

T-~-~

I 1.86
2.B8

4-LT19"j

i
3-LT19E 14.30
S.72
2.14
2.42

5-:-LT1~J:~

7.14
2.70

2 -Sl07
1 -S123
1 -S603
~~ -WI07

2 -R¢¢2
1 -RIll
2 -WI04

LT19E

(Single teletype control only)

LT19F
+10
-15

.07SA
.134A

L5 Maximum LT19 Configuration

Maximum Possible Load:
2 -R401
L -S203
1 -WOO~

LT19II

+10V-7.2A, -lSV-2.8A

No Additional Power Req.

1 -wo78 or W076D or W028 (part of teletype or EIA device)
2 -WIO)
1 -W705
1 -W706
1 -W707
LTl9F

(Single EIA level operated device control)

Same as LT19E plus
1 -W511
1 -W602

!.T19H

Same as LT19F Plus later Unit Cable

C-IA-700589l-0-0

r--'------------------------------------~S-A-z-E~I-c-~-~~E~I----L-T-~-~-~-~-:-:-----TI·-R-B-v~

NUMBER
I·'T'lq-n-1i.

...

~·~ro~R~.~I~N~O~----------------------------~~~----~--~~~~~--~·~~
DRA'108

ENGIN EERING SPECIFICATION

SHEET

...fL OF .~~

Cl1eck out

TITLE

9.,0

Test Procedure

None

Margin LTl9D
(Rack A)

Margin LT19D
(Rack B)

Margin LT19D
(Rack C)

""
2.5 2.5

!. 3V ±;w

2.5

2.S

2.5

Acceptance Test Procedure

>-*

Margin LT19D
6V 6V 2.S 2.S
l)
(Rack D)
* ,-lSV Margins for racks A and B, C and D must be run in pairs,
i.·e., 1l.&B together.
8.1 LTl9F Checkout
The "F" option (ElA level converter) is intended to drive a Dataset
~:able or an
option. To simulate the cable and perform tests,
ddd the followlng temporary jumpers to slots A25, A26, A27, A28, or
J.29: S t~ Hand T to V - this simulates the jll'DperS on the cables.
Jumper p~n E to pin P to tie output to input. Run appropriate sections
of the Dlagnostic 09-D8CC

MAINDEC-9A-D8CS-PH

Program Tape

MAINDEC-9A-DBCC-D

Write-up

9.1

No special test equipment is needed [or acceptanc'2 of
this option.

9.2

Field-installed LT19 D, E, F, H options should be tested
and accepted under the same stipulatioils stated fc)r in-house
installations.

9.3

See L'r19H For Special Acceptance Procedure.

2.S

LT19 D, E, F. H Multi-Station Teletype Control and Interface

-15V

CONTINUATION SHEET

In addition, the fallowing documentation list must be
complete before the unit is accepted.

Margins
+lOV

-L4

The Acceptance Test operator must sucessfullv rerun all
Checkout Test Procedures as stated in Section 8.

Each LT19 D. E, F, H unit will be tested using Test
P;~oced,lre MAINDEC-9A-DBCC-D both under normal operating
conditions and under voltage margins as specified below:
Aggravation
Conditions

SHEET

ENGINEERING SPECIFICATION

CONTINUATION SHEET

TITLE
L~n9 D, E, F. H Multi-Station Teletype Control and Interface
~.-----------------------------------------------------------------------~
8.0

DEC FORM NO
ORA 108

9.4. Performance for Acceptance purposes will be·demonstrated at Lhe
speed specified on the P.O./Const. Req.
Unless otherwise
specified this will be ll~ baud.

"l!'.'

8.2

~:ee

LTl9H for special Test procedure

NUMBER
LT19-D-6
DEC FORM NO
ORA 108

I --

NUMBER

R,&Y

T,'flQ .n_+'>

~._

SHEET _I~ OF _I~~

DEC FORM NO
ORA 108

SH(~ET J.L OF _

19.,

ENGINEERING SPECIFICATION
TI'TLE

CONTINUATION SHEET

ENG" JEERING SPECIFICATION

LTl9 D, E, F, H Multi-Station Teletype Control and Interface

10.0

TiTlE

Spare Parts
Spare modules necessary for. the LTl9D:
1

Sl23~

S503*

1
1

11.U

CONTINUATION SHEET

LT19 D, E, F, H Multi-Station Teletype Control and Interface

Preventative Maintenance Procedures
To insure reliable operation of the LT19 D, E, F, H
system, standard procesor maintenance procedures
(for both logic and the teletype units) must be
followed. All additional KSR'S, ASR'S, SO'S, or
ROtS Which are added to the PDP-9 system must follow
standard field service maintenance procedures to
insure proper operation.

Sl07*
Wl07
Wl04

*These mOdules are already included in
the basic processor spare parts list.
Spare modules necessary for the LT19E:
1
1

R40l*
S203*

W005*
W070

wlO)

*These modules are already included in
the basic processor spare parts li3t.
Spare modules necessary for the LTl9F:
Same as LT19E plus:
1

W511

W602

10.1

No Special component spares are necessary for the
LTl9 D, E, F, H system.

10.3
:'.0.4

Special mechanical spare parts and tools
which should be supplied with each optional
teletype unit are listed in the PDP-9 Sales
Notebook, Section 7.6.

NUMBER

REV

NUMBER

LTl9-D-6
SHEET ~ OF

DEC FORI! NO
ORA 108

ENGINEERING SPECIFICATION

CONTINUATION SHEET

:--------------------------------------------------------------------TlTlf LT19 D, E, F, H MulLi-Station Teletype Control and Interface
~----,---------------------------------------------------------1.: .0

Set-Up Procedure
12.1

Set up all ll¢ Baud Teletype channels with the
required Machin0 (KSR 33 or 35) and checkout with the
current version of the diagnostic (LT¢9l9).

12.2

Set up all channels with Level Converter options
(L~l9F) and run the self checking test as directed
in the diagnostic addendum, D8CC-DN.

12.3

LT19H Set up.

12.4

Recommendations for setting up R4~1 clocks for
each channel.

Refer to the spec. LTl9H.

Set up the Transmit clock first since it
is free-runnlng.

Remove the W7~6 Receiver Module, this will
allow the receive clock to free run.
Set
the scope to ALTERNATE Sweep,
INT. Trigger,
do NOT trigger on CHI. This will allow
the pulses from the receive clock to be
matched to the transmit clock.

Additional notes for ll~ Baud Channels. At ll~
Baud each data bit is 9.09 MS long,
this requires
the R4~1 clock to be set to 4.545 MS rate. There
are 11 bits of 9.09 MS in each character, therefore a
charucter is l~~ MS long.
Since it would be very
difficult to measure a clock interval of 4.545 MS
on a scope, set up to measure an Intire character (100115).
The scope calibration can be easily checked by putting
six (6) complete cycles of 60 cycle waveform in exactly
l¢CM. With the scope calibrated to l~~ MS, fine tune
the R4~1 to give 23 clock pulses in l~CM (22 clock
pulses plus the first pulse of the next character.)

NUMBER
T TJ

DEC FORM ND
DRA 108

9-P-6

SHEET ~ OF

I E3

REV

I,Tl9-D~{i

DEC FORM NO
DRA 108

SHEET ~

OF~.

FIND
NO
1

o
2

TELETYPE CONTROL
C-UA-l Tl9-D-0

DEPT USAGE

OEseR I PT ION

PART NO

TelETYPE CONTROL
TELETrPE CONTROL P.l.
PANEL:R I GHT END
1,/0 CASL ~ ASSY
RET BLOCK
4915 TO U71 CABLE
OA TA SET CASL E
IIREO
WIRED

! I Ai: I L - O.;;§.lll 1!~t~J 2 1

IIECHANICAL

PROD

CUST

ElECTRIC:.:A;;:.l_ _ _ _ _-,-_ _ _ _ _ _+-'O~E~FT~U~SA~G£,E_--I

f~~O

F./e

CESCRIPTION
PART NO
PROD CUST
~~~----------------------r_----------~~.~
I
WLTI-STATION TELETYPE CONTROL
A-IIl-1 TI9-J
1..0 BUS INTERFACE lOGIC
0-8S-1 T19-0-1
I. 1) BUS I "TERF aCE
D-3S-1 YI a-:r2
1W0UlE UTIL I UTI ON
D-IIU-I TI9-:-3
1I00UlE UTILIZATION P.L.
A-PL-L Tl9-D-J
liRE liST lTJ9
K-IL -I T 19-0-4
EXTERNAL COIIPONENT II ST
A-CP-l T19-D-5
LTJg ENGINEERING SPECIFICATION
A- SP-l T19-D-6
-OPT ION5TELETYPE INTERfACE LT19-,
4-IIL-l TIg.~
TElETYPE CONTROL UNIT CHANNEl I
D-BS-l Tl9-E-1
TELETYPE CDNTRDl UNIT CHANNEl 2
D-BS-l TI9-l-2
TE 1ETYPE CONTROL UN I T CHANNEL 3
O-BS-l TI9-l-J
TELETYPE CONTROL UNIT CHANNEl 4
O-BS-l T19-E-4
TEL ETYPE CONTROL UN IT CHA~NEl 5
O-BS-l T19-1-5

C-UA-l'I~O

A-Pl-L Tl9-0-0
C-1ID-5302488-0-0
D-tlA-eC09A-0-0
8-110-7408041-0-0
0-A0-1005218-0-0
C-I A-7005717-0-O
I\-SP-l T :9-D-')

ASSY (LTI9-0>
ASSY OTIS-D> P.• l..

0-A0-70084 52-0-0
A-Pl-70064 52-0-0

TElETYPE INTERFACE 1T19- c
TElETYPE CONTROL UNI T CHANNEL
TElETYPE CONTROL UNIT CHANNEl
TEl ETYPE CONTROL UN I T CHANNEl
TEl ETYPE CONTROL UN IT CHANNEL
TE 1ElY PE CONTROL UN I T CHA~NE l

II R~O A~SY
(l TIS-,,)
D-AD-l00tH 52-0-0

IIARGINAl CHECK
PANEl ASSY
C-I A-54 02526-0-0

19430 MOUNTING PANEL
19430 MOUNTING PANEl P.• l..

0-AO-1943-0-0
A-Pl-1943-0-0

c
r::L3

-..v-

F. C

A-lIl-LTIs-r
0-8S-l TIS-F-I
0-8S-l T IS-F-2
O-BS-l T19-F-3
O-BS-l T19-F-4
O-RS-l T19-F-5

I
2
3
4
5

fJATA rOM1\HJNICATIOI\':o ItJTERFA'~c

A -t.-lL ~ T Is,,-H

DATA. COMI~uNICATION::' INTE"FAa
DATA COMMUNICATIONS CABLE
f...C t PT,~r-,: E I:: ~ I, t. [ 'JIll

t... ~~-,-TI";;J-H-I
C U"'-~ 11',-11-,'

_IRED ASSY

0-AO-70060-0

(I TJ9- [)

1943 0 MOUNTING
PANEl
0-AO-1943-0-0

'--,--------'

0-y
4

1943 CASTING
PLUS PINS
0-AO-5302483-0-0

1943 CASTING PLUS PINS
1943 CASTING PLUS PINS P_l.
1943 FRAME CAST ING

0-AD-5302483-0-0
A-Pl-5302483-0-0
E-MO-1202665-0-0

~ARG INAL

C-I A-5402526-0-0
A-Pl-5402526-0-0
C-MO-5302484-0-0
SS-C-I O~O I

MOUNT I NG PANEl 1943
MARGINAL CHECK PANEl ASSY

B-CS-IS43-0-1
C-I A-5402526-0-0

o
CHECK PANEl ASSY
WARGINAL CHECK PANEl (P.• l..)
PANEL. MARG I NAl CHECK
SCOTCHCAI S

QTY.,

DESCRIPTION

PDP-9L

PART NO.

liTEM.
NO

PARTS LIST

Uti\JS!LQI!:!FRWISE SPE IflED
UNLESS OTHERWISE SPECIFIED

OIM[N$.oN IN INCHts

TOL-ERANCES
OtClMALS
~ 005

FItACTtONS
::: 1/64

ANOLES
::: 0-30'

1U";:~~,.~It::~( I~~~':H~P
CMN[ItS

~TE

PR09'J' r:,J£

MATERIAL

I~~

I~}l.k

A-ML-LTI9- D

---'I~---IfORD I02A

SHEET

L TI9
SIZE CO,:!!

"'F"""IN-:"IS""H-,----,--iCSC:7AL:-:E--;-;-N;;"07:N-:=E----1
DEC fORM NO

DRAWING

INDEX LIST

NUMBER

RFV

DOli L T I 9 - 0 - 7
015T

I G-I

Iii 1 i

Ii ..1 Jj

DIGITAL EQUIPMENT CORPORATION
MAYNARD, MASSACHUSETTS
DATE
TITLE

7-31-G9

Baud Rate Table
REVISIONS
DESCRIPTION

REV

CHG NO

ORIG

DATE

APPD BY

DATE

Find the BAUD RATE nearest the desired val~e in the table below.
Add
the indicated jumper from pin R to pin L,M,N, or P.
Add the external
resistor (Rx) across pins T and R.
Fine tune to the desired frequency
by adjusting the internal pot on the R4~1.
Note that the table calls out values which give a frequency that is
twice lhe [laud rate, (og., 110 [laud uses 1.2K for Rx and pins R to L,
which gives a frequency of 22~ CPS.
The double frequency is required
by the W7~6/W7~7 which clJ vi des th" clork b~' 2.
Some examples of common 'laud rates are:
110 Baud - cfc:mper Pin R to L
Rx -, 1.2K
2000 Baud - Jumper Pin R to M Rx "" 750
2";~0 Laud - Jump2r Pin R to M Ex = 47~
11000 Baud - Jumper Pin R to N Rx = 3.3K
30000 Baud - Jumper Pin R to P Rx "" open
Jumper Pin R to one of the following pins on the R40l Modules
Va 1 ue ,
.
of P_x
(p~ns L.G M, N or J\f are des-wnated as Pill (~ on t11e prinLs)
470
S60
680
750
lK
1.2K
3.3K
Open

155 146 137 133 116 1~6

151
155
146
142
146
122
106

2270-2400
2150-2265
2010-2150
lrn0-2~84

1710-i910
1560-1795
860-1297
159- 860

22.7K-24K
21.5K-22.6K
20.1K-21.5K
19.1K-20.84K
17 .lK-19 .1K
15.6K-17.95K
8.6K-12.97K
1.59K-8.6](

18.6K - 98K

Note that the above values are for design center values, with 10%
capacitor and resistor tolerances other. values of Rx may be required,
and may be used.
Use the loy/est value of Rx which Cl.llows adjustment
to the required frequency.

ENG

Ralph Dieter

DEC FORM NO.
ORA 107A

SIZE ICODEI

NUMBER

I REV

OF _1_

I L'r19-D-8
SHEET

DIGITAL EQUIPMENT CORPORATION

ENGINE ~RING SPECIFICATION

CONTINUATION SHEET

MAYNARD, MASSACHUSETTS
TITLE

I:NGINEERING SPECIFICATION

DATE

ORIG

CHG NO

DESCRIPTION

REV

~n';1.a'0

t()

APPD BY

"O;lt~'o~

t!lC L':'1

aC'c<'~tin,:,:

REVISIONS

':;.~L 'oj.

t!l':ir

DATE
~'~a:{ c

:~i.:l~!·C

1:;.:'pecLio!1

vi.>~al

::t

~.~ 1 r ~_ n f ; •

~Jl-lat:

'1';,e:'e ar,: JiO loose cO:lllcctio::s or '..;ir".;.
:, L_~

j •

;:.ar~_~in

arc in tile ~'ix-? ~ po:'; .. tlo!. (:':0',.;:.)
co:;nectei l~()rC!"'':':: t :l. 1:<:. ~:. ~~l"'~ 'J:~ or

:.J-•. i .~-:: ::e~-:,

'_-;lcrc iJ a

clcvi~e

c::.c.tnnf::l •

i~l

,')'-:;_·,c;r'.~:ln·2c ·..:1'L:1 t;,+-: i:~.~~tr:.~,~ti:.;~·l~; fc..':J:~ti
....:l::fJ c:.Q:;ncl IJJu~t ~~e cX0rc::!.~e..i, an:] :'::e
o~(:r0.tc'r to i~;.:.:~~:~c p:-'u}:c~ s!'·":':'t!:-l-:!!.

. '.Un tile;
aln :cs

O~·

OUi.,' '1t3

r~·~'y

C:l,~'r;~,:c.<.

1,<:

i::un tllO 'iiacnostic UW;l'I'
irL::rl...;.ctiurL: Qnr)
c,Jil'cd

, u. .. ,. C;J

·I~~!~

.;,

)-,~11)

0:'

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r{~1CrL'!:c'C:.

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PC!' '::JrmC'u:

(10ni~th

I!tsert O!l'.' cni o~' ['':'l gil
be1ni; te,;ced.
Insert

ui-,~;")!'

':.:]lJ'l';,
,; j

:\,L:, . . ,',

cn~·i

0:'

=~)

, cr

:::aL'}

~ n

'.inJe~
~:;1'__ ~Sf"j

01.

Install ju;;ll::er' bctl,een
I.

un L',"'O gc 0 P t~ on
'~jj-]

SIZE ICODE

con::.l,.:tion of thi::
for
an~
are

tIle

acc~.:p~-,a?;c'_

~ouc:r~(

~ork

I A S?

';", C;:,

~,rl~

'-- xc

I APPD/ .

~~c flO

'--G.

Pii£;C

cO~:l~J.eL'

DEC FORM NO,
ORA 107

------------------------------------------------------~
TiTlE

·r

~'e

~Lr.i; ~

~:'~L:'

a} ~

~,t-"

rat. ·.-'r~-

NUMBER

REV

SHEET ~ O F - L

ENGINEERING SPECIFICATION

CONTINUATION SHEET

'I' • •

\-1 Ie., - D-'1
DEC FORM NO 76-7022
ORA 108

ENGINEERING SPECIFICATION

~_ ~~(..:-_

,i.

I REV

NUMBER
L,''1- D- '1

'~ir

CONTINUATION SHEET

TITlE

L':;~
','Liltic::ann, 1,; all<1 t,l,'

Qcr:c;:t the
1, t:, r.-:'~

'lint ~o-~)

J.~:..j'JCi~lt.t_~:;

c,,1'

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confi.c:uration orcierc(l by tile

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cRt, 108

,-~tt'P

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NUMBER
1_,

REV

SHEET ~ OF_~

OEC FORM NO 76~7022
ORt, '08

SHEET

--=:!. OF

REV

ENGINEERING SPECIFICATION

CONTINUATION SHEET

TITlE

CONTINUATION SHEET

TITLE

.. ITI

.
1.

hey SlJeets

E20 Status Sheet,;
\{al ver (yel~ow

3.
4.

5.
6.
G.

r .•

Envelope shal L \,,;o:.L:J.in:
20~:;)

"n-l

;::H'f~in

Sheets
copy)
Con::;truction Hec;uL~itioll
A0surter1 ot:hpr ra~"":::",!~·...'~l'l~

Customer Envelope
l.

(rLw?

s;.o'~l:

::CJ.C!1 L'"~~C) : ,L,c",;: ur,j" \,111
Lens

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~.

Pi nk copy of ;·.ar,;in
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l'Jhen complc tc r:.....~·.
rop +.1.Q"/ ~~ar<i!~.:·.

Copy of Key Sh('et

.j.

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-1 r;V :;u

~jljccts

+ c,

to[':c·+.:

:I.CCCpt~J.llC·-'.

Sheet
Status (white copy)
;';argin Sheets (\'jili le copy)

REV

DEC FORM NO /6-/022
ORA 108

SHEET ~ OF

_c,_

DEC FORM NO /6-/022
ORA 108

SHEET _ _ OF - - -

MASTER DRAWING LIST

-;:;",

i:
0.2

u ..

DWG. NO .

.. .0

E co

.~£

REV.

NO OF

LET.

SHEETS

RE:F

TITLE
MT II :1'1 -STAT ION 'J'ELr:1',(H':

CON~'ROL

~i
65
-

TELETYPE r:O;,JT'HOL UNIT CIlANNEL 1
D-BS-LT19-E-l
1
R
D-BS-LT19-E-2
TELETYPE CmJTROr. UNIT CJfAW"I:L 2
1
B
~~ .~~D~--B-S--~L~'~1'~1~9--~E---)--------~-~--r-~-r----~~~~~~~~~~~~~~------------;
TCLE1'\PE ('ONTROf, UNIT CHANN[':L 3
H
1
~:g §
D-BS-L'1'19-E-'+
1
TELETYPE CO'~'l'ROL UNIT C) !N.;t;'JL 4
~: ~ ~~L;""--13;"'S~-L;::.:;..T...::l..:..9--..:..;E---S---------r'l'ELETYPE CO;-;TROL UN!'I' ·~'I!Al~NL 5
1
B

£~&~--------------------_4----~----r_------------------------------------------_;

$~~~----------------------~----r_---r--------------------------------------------,

~i~~----------------------~-----~---+--------------------------------------------,

~~~~----------------------4-----r----+--------------------------------------------~

ji;~----------------------4---·--r----+--------------------------------------------~
~eo~----------------------~----r---_r--------------------------------------------;
~ ~~

~~~~----------------------~----r_--~---------------------------------------------,

~~o~----------------------~----r_--~--------------------------------------------,
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~~~~----------------------4_--.--r_--~--------------------------------------------~
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~~~~----------------------~----~---+--------------------------------------------~

~~-----------------+--~--~-----------------------------------~~

~~r.~~RETV-;:IS~IO;;;N-S~T.~~~DR:ENR.fllJ.l:JiC·l1L~I~~T:~' ~D~nD~D E QUI P MEN T
REV.

DATE

CHG. NO.

APP'D.

CHK'D

~~
A-+I.L,.....~
...
!j.,..,·b,...,,9...
- ......,'.!....
r'T"l.?;-;::
9.D~-...--.L~-;:R:-.-;:D~.--i AT, PFVFFER

7/70

'LT19D-2

R.D. EN~I i .'

8/.
1 )/t", )

DAtE

D/,~,E

.:/

L!J

CORPORATION

M"YN .. RD ....... ,. .. CHu.IlTT.

TITLE
']'j':LETYP/,: INTFRFA<:l:

~IRST USED ON

~-j,-'J'-1-':!_--n--------_1SlzE1CODEl
SCALE
A ML
SHEET

]

DIST.

NUMBER

T.']'.19-F

r.Tl C)-i':

REV.

I I 1 1 1 1 1 1 1 1

------,
I
I

1_..J

o
CLR lOT

CLR !Oi

I CONTROL

S':E tJuTE 2

SEE NOTE 2

--=o~::"'---'-_""""''-1-_ _ _''':''':''''P--_-'---'r-' 2 CONTROL _R.~,--_ _.,..-J

w ¢¢ ":> -0"'1"l1V---=-lI....
MT R:

DI4

F"LG \

',,---<>plG

lOT 4~~1

XMTR

~
CK

INT RQ

rOT

SEE NOTE I

DE:
OF

T/::J BUS 13(13)

TT,(

+3.(0'"
__ ..

I
lOT

.7~~'(1)

PROG lN, RQ

--<> REC.IIR

a-r'JTp
D':>, ___ DH

... _ .. _ ._

';,:~ ~~

IP au" \e.

TSO\ C F

IP BU5 \3

F"LG I

RR£:.I

l/J PWR ClR (B) ov
OM

"lP BUS IlOtB) J:>L
-rp 13uS 17lB) ~

1PB\J';,14

C.U

rP 8U'=> IS

It:> au,;; \CD

C:R

-rj::J BUS 17

RCLt:1

("\.J

DL.

'N7l/J& eN
CDI8

1b BU'O 14 tB) 01-1
J./J BUS ISlS) Of

t>K

TP Bl)~ 1"2.\B) ~p

D'S
WI!Z>3
COl? 1

01-1

DSIS

rp BUS I'll lB)
1.f:J BU':> 1\ (B)

410~ I\)

API 03 RQ (B) CH

r LG 1

W PWR CLR (B)
PJI..

W00S
01+

RE.CVR

+ 3.r:cV

lOT "1\'60<1-

DS3 B

DS3

--{> XMTR

RECVR
rlG 1

CM_ _~P5M 1

TOP

TO T,,( UtHT

DS4B

D54

ossa os.

~~,;", ~~~ , ~_
;;~;~r-

I I

________________~D~V~-LJLJ

()(.M'~ 05)

NOTES:

\. APPROPRlil.TE

(I\ECVR us)

DIODES

MUST

REMOVED FRO""
W 103 DE.VICE
S'ElE.CTOR MODULES TO 08TA1N

P~OPL~

.5E..U:C,\Ci\. ~ODES.
2.5E.'i:. eAUDRATE TABLE (DWG~ A-CP-LTIQ-D-S)

FOR 'OELECTION Or EXTERNAL RESISTOR
(RX) AND TIMING C.o..PACliOR JvMPE~ PIN(,()'

PART NO.

ITEr.'!
NO

PARTS LIST
~~~-'- -"~-:iI E QUI P

UNLESS OTMERWISE SP£CI'IED

TOLERANCES
DICI.aAli
~

fRACTIONS

oos

1'64

AMalU
:!: 0'30

~~~i-~;;;'_f,TmITjL~=Iw:;~~;;~-~y=:.s:':~~~~o~~-=:·~~-~~·~~~~··R~~~<~.:. :vl.O':"' ' ' :~1 A

,u ..o:t:~~~ff::~( :-~~r;~l.p

UNIT

eo_N(R$

MATERIAL

t1NISH
DEC FORM NO
DRD IQl

MEN T

CHANNEL

,
•
2

-------.......... '---_ ......
.............................
....................................

- ... -

Ii - -

-----,

W!!~,

I DZZ

o
C~IM

~RI~

ICONTROL~D~~~~~~------~~~~~ZC~TROL~~~~~~
~OT 4~ZI

RX
SEE NOTE '2

WQlQl5

IJZZ

CI-I

w~rt.> ~D'V2V2---"R...EC VR

HC,2

HG 2

'IOT .. 12. \

lOT 4j11l1

XMTR

top 1
TOT 402.C!.

1(1T41Z1

'II MS---''''O2'V2~-'l.-'-I.I
..TR

.7."
C023

G"--:PROG

T'TY

lOT 412~ (I)

IN' RQ

P~M2

)(MTR

rLc, 2

+-3.10'"

)(MTR

TOT41za
+3.<OY

Ij:>eu'5 \Ib\~\

WI1II1I'5

D22

0'5
WI~3

SEE NOTE I

If)

~~:B ;~JI

Of'

OS 3 B 0,",

DS3 ~
DS48 ~

Dsa.B -.esC!. OL

054

-..

DSS

~~r-

1j) BUS 1'-

If:> BUS IStS)

RCU:' ,2

IP 8\J5 IS
IP 8u~ 17

05
W~,tJ /mf;70D/wt78 A

-L

021

::~ ~

OS5B~

SOl

1P BU,," 14

rP BU5 12..(8)
rp BUS 1'3(8)

tlR.D'S

St'l.z,p,--"'~

1P BUS II (B)

t'lK

~
tl-v' ......

t)\)

______________________~O~v~~~

NOlES:
\ APPROPRI/:).'E
DIODES MUST BE
REMOv£.D F"RO)ll
W 103 DEVICE
S~LE.CTOR
MODULES TO O~TA1~ P~oPL~
.5t.U:C'OR COO~S.

(~E.CYR D5)

(Y-"'iTP-. 05)

I/) BU~ 12.

lP BUS \"3

TSOcCI'

"IP BU~ 17 la) C ,

0 ...

CLR ~c) DV

PWR

IP BUS l~lBI ...!>L.

¥J BU~ 14(6)

C025

D~ ¢ B DE

rp BU~ IllS
1P 'DU~ II

RCL·:C>

RR£2

lOT4IZZ(1)

Ij:) PWR CLR (B) DU
IOT4924

PROC, INT RQ
RE.C.VR .LG 2

RECVR API (p3 RQ (B)

2. SE£ BAVD RATE i ABLE FOR SE,-t:C TION OF
EXTERNAL RE 51STOR (R'X) AND TIMlNG
C APACIT OR JU MPER Pl N (Y). (1\- CP- L Tly -0-8)

IRS T USEDON OPTIO",,",OOEL qTY.

I____________
PART NO.
l'TEM
~NO~.

DESCRIPTION

~_~I________________~~~~u.n~~

LT19-0

TTY CONTROL
MATEIIlAI.

UNIT
CHANNEL 2

I-jEX T HIGNER ASSY

A-ML- LTI9-E

h~~N=~~------------~~~'~E---/~--.~·-----1[)iBSI
SHEET

D;ST.

NUM~R

I I

LTI9-E-2
I

"""'

..........

............. ...

..., .. ~Ictu......... ~ ........... ..
~orc....-

.. VWII .......... ~..,. ..

. . tIn4 ............ ,,~ ...... ~ ...... ........

.....

o
CL~ lOT

CI..R rOT

I CONTROL .....;;D:.p..=-=-.:.-:.c::...:..'-r-l'---____-=--tlI-=c.::....:.--=-:2.:...-J? COI'ITROL. -'-'-11:1'-------r---'

RCLE3]

IOT 4'1>41

R'fW0CZ1S

BI)3

w¢ ¢s ...--"",,"""":::...1

SEE. NOTE ~

SEE "'OTE 2

903

Rt:C"R
FLG 3

-IT
H

c
lOP 1

r~ PA

X MTR

3
FLG

R[(VR

API 03 RQ

:=>

PROG INT RQ

(Sl

+3.c..v

I,b 13U~ \I!!
+ 3.CoV

rp BUS 1'1> li!.)
1P BU'5 i I (8)
r.P BtJ~ la (8)
rtJ BUS 13(13)

lOT 414 2 (I)

m PWR CUi. (51 BU
Pili

W00S
6c)3

SEE NOTE I

os(t> B

PS0

~------------------------~:~:~~

IJO PWR ClR (B) BV
TS03 A"

W 'aU"'- II

IP BU':> Ie

I? BUS 13

iP BU';, 14
- rp B\J5 I""

~ 8U~\<O

rP BUS 17

J./O BU~ 14 te)
IP au::, ISli?)

RCLt: 3

IP aus Ho(13\
IP 'BU'5 17 tB'J

O'5IS
I

OS3B

I-'-'-'-'----P~M

IOT 404a

lOT "9144

DS 1

API

XMTR

TOP 2.

DS2.B
DSc

lOT 4142 (I)

PROG INT RQ

TOT '1-141

lOT 4{l141

~______________________~~

DS3
OS4B

054
BS

DSSB

DSS

5P¢

SDIB

I I

NOlES;

I. APPROPR1.o.TE

(l'\E.CVR os)

DIODES

MUST 8E
W 103 DE.VICE

REMOvED FROM
S'LLE.CToR MODuLES TO 013'TA1N PROPLl1.
SE.L£C'O" CODCS.
2.St:T BAUD RATE TABLt'. f"OR. 5~\..E.CT1CN
CI:" EXTr:RNAL Rt::SISTOR (RX) AND nM1NG

CAPAClTOR ,J UM PE~,P1N (Yl. (A-C:P-LTlq-D-S)

fiRST U5EDONOPTIO~"ODEL OTY

UNLESS OTHERWISE SPECIFIED
oalUNIIQN IN INCHU

TOLERANCES
DlCIMAli

'IACTtQNS

001

s .,...

ANGlU
%

.l~~.:fI~( ~~~~~
CGa'U . .

flNISH_,.,., _ _-...,"--_

PART NO.

,;;-~
I':

I~M

-"~""''lEQU I PM E NT

'\:'. CORPORATION

~~~~~T~rr~F~~~~;~--~C~O~·N~T~R~O~C~IA

VlO'

MATERIAL

DESCRIPTION

~-+------------------~AUrr~~S~U~~~-L------------~~

LTI9-D

UNIT

CHANNEL

-----,
i

'/V005
BII

.!!.._ -l
CloR rOT
, CONT~OL

RX
W00S
lIT1

SEE WTE 2

'l.OT 4l&<:'1
'II ~~ ..-./VV---"~

''FE NOTE 2

611

PROG

lOT 4fb" 1

)(MTR APlfl)3 RQ

TC.L 4

TOP I

XMTR

TOT 41'2 (Il

'N7tfi~ AN

PROG

R[CVR API cll3RQ (B)

AB1.5 AP

RECVR FLG 4

TTY

RRt: 4

IN. RQ

~~--P'5M

(8)

+3.r..V

FLC,4

RCL4
lOT 41c> Z (I) B"
J/) PWR :"LR~c)6V

IOT40"'~

TOT 40102.
lOP 2.

R.E:CVR ~lP BU'" 10
BF-<> 'I,b 'S\l'5 \ \

~£---<> -rp BUo:, \'2.
BD
J,h BUS \3
AT
1,b eu'O. 14
AU
r,b B\!'5 I"S

TS04 A F

~
AV

SEE

1 Nl

!/:J BU'5\<O

J,b BUS \7
~RC.Lt:4- .
AR

NOTE 1

os rb B

DS 0
0'516

D51

DSaB
DS 2.
DS 3 B'

OS3
DS4B

DSS

au
BV

SPI

NOTE5:

I. APPR.OPR1.ATE.

DIODES MUST BE
REMOvED FRO'""
W 103 DEVICE
SELE.CTOR MODULES TO OBTA1N PROPLl1..
.5E.L£C,Oi\ COD~S.

(~E.CVR DS)

2. st.t. BAUD RAiE. TABLE FOR 5t.\..E.CilCN

OF EXTERNAL ReSISTOR (~')() ANO
"T1MING> CAPACITOR JI.JMPER PIN (Y).
(A-CP-LTI9-D-8
~1~5T USEOONOPTION/"ODEL

PART NO.

DESCRIPTION

LTl9-D

ITEM
NO

'ARTS UST

""--;"'-3 E a U I P MEN T

~
t:~~~~-4~~~nTI~":~~~;'''~''~~=':'~~~''~''~~;o~~,~,,~,~C"~u~,'~"~'-1A
TTY CONTROL
'U.~.~NZ~:.EA. IH~"
UNIT
CHANNEL
4
I
.1 " ' - . ' CORPORATION

D'MINAfOH IN IHeWU

TOLEW.CES

OltlMALI
:t ,001

FIIIIACTION'
::I:

11M

ANGUI

:: 0-10'

FINAL &WtFAC( QlJAL.rrw

ttMOYI

MATERIAL

A-ML-LTI9-E

FINISH

-+--~J"--

~E
~m

_.. _.__ .... -.....-.
-----_
_.....~

.. c.ro.e .................. .

... " " , ... tN~ . . . . . ~ . . . . .

o
CLR lOT
CLR lOT
CONTROL --=O~~....;..;::..:::...;.,......L_ _ _--..!:!....(:j~..:........:=~ Z COIfTROL-'-'oO------.-'
10" 421'.

R)c

I{ I/)

SEE NOTE 2

BI9

819

XMTIi'
F LG 5

RECVR

HG5

lOT 4311Z (I)

PROG INT RQ

lOT 4ZIZ'I

05 __.AIV---'~

XMTR

RECVR

1-=-'.!.....--P5M5
XMTR

lOP I

F"LG!)

IIC

PROG INT RQ
RECVR FLG 5

(8)

~3."V

RRt:. ~

RCL c::.

ro BUS \10

lOT 43"2 (I) ~"T
PWR ClR (B,) BY

Pili

W00'S
B..1.Q

05
SEE NOTE

O~¢ B

1fJ BU"" 14

. r,6 BU'" \':,

~~:~:~~

WI03

-Ip '\3V~ II
I/J au':. 1"2
1/0 8uS 13

TSO 5 AF

lOT 42""

API 03 RQ

~RCLt:'='

"aE2

OS0

Btl

DSIB
DS \

BJ
f'.J

Bl<

DS2.B

HL-

osa

BM
RN
BP

R
DSS

@v~ ~ :~._________________B=~~~

~r-----------------------~~~~~
(~M1R os)

(~ECVR

DIODES MUST BE
fROM
W 103 DE.vICE

I. APPR.OPR1.Il."TE

t)s)

REMOVi:D
Sl:L£"c'TOR

TO O~TA1N PROPt.~
coDes. IOT D£VIC!

MODULES

.5E.L £:C"TOR

SELECTION COD£S .ARt o'PTIONALL. Y
ASSIGNABLE FROM STANDARD PD?-9
DESI~NATION

.... SSIGNABLE

UST. (SEE L. T I '-D F'O'R
LlSTlN~)

SUB DEVICE SELECTION CODE IS NOT
ASSIGNEO TO
UNIT AND MUST 8E
JUM'PERED IN IF" R£QUI'REt>.
2 SEE ~AVDRAiE iASL£ FOF:. SeLECTION
OF ExTERNAL RESISTOR (R.)() ANt> TIIV1tNG
CAPAClTOR JUMPER PIN (Y) (A-CI'-L Tlq-D-8)

nus

FIRST

US(~ONOPTIO~M()DEL
LT19-0

DESCRIPTlON

FINISH

PART NO.

~~----------------~P~ART=S~US=T--L-----------~~

5
z.,

MASTER DRAWING LIST

I!:S
&~

0.2

u ..

REV.
LET.

DWG. NO.

Ell
~:S

.,.'"
..,-1::

Pi·'F

A-ML-LT19--D

r.~

D-BS-LT19-F-l

O.S

NO. OF

MULTI-~TATION

TP..LETYpr: CONTROL UNIT ClIAN"Ni::I~ 1
TELETYPE cor:rrrROL UNIT Cl!A.J"fNEL 2
Tt:LETYPE CO:'TROL UNIT CIA;';N!',L 3

D-BS-LT19-F-2

D-BS-LT19-F-1

':'

,~-

o..~

D-BS-LT19-F-4
D-BS-LT19-:'-:;,

...g
e1 ";
&10

TITLE

fsHEETS

Tf:LETYJ-,': CONTROL

TeLETYPE CONTROL UNIT CIlANNLL 4
TELETYPE CO!(TROL UNIT CllANm:r. 5

£"28.
l!!::> C

;o~
~~ !

110.::>

&.00

~~~

~~ E

Uull

~:J~

~~o

~~ (;

bOO It

~~ ~

~~~
~"'C C
:c.c'"
~.E

t--.

DATE

l~h~'1

CHG. NO.
I.U!' .L '11)-.L

LT19D-2

APP·D.
K.D.
R.D.

~r.ATr

!('P"

REVISIONS
REV.

'J'_ERGU~ON

8/6/69

CHK'D

DATE d/

I.-/v)

l'\L PFYFFt:R
E.NG.
(

, \

PR9J"ENG.,,: ,

D~~E ,

~g~nn~gEQU
•

IPM ENT

=~~~:?a~A~:!"uI.c;.~

TITlE

DATE
Tr;:T,ET',r'I'~

TNTFRFAc'j

To',] 'J-F

PRCZ/(}ltl D~
.~ 116'1
FIRST USED ON

UJ'l ':i-D
SCALE
~HFET

gEC fORM NO
RA 103

NUMBER

SIZE rODEI

A ML.
1

DIST.

T.T19-F

REV.

I I I 1 1 1 I J 1 J

""'
...........
...

.............
....
............ ...

,.,

,......,~",.VMIIII""

1-.;l611l

....... .. ........ -- .....
-~

"tJotaw-~c:c.r..-

1IIII1, .. n'-l

............... .

-----,

; -w~i'Ti

0\4

I
I

~ _ _ .J

I-,:':-~-=--t--!:°~~--o RCL 1 ..n. 40~ N S

::.

~
W 7es':!

+3.(P VOL1"~

CI",

~ -

- -

CLR IOi

I CONTROL

10, 4~f1) I

WCO:'~v'

I W00S
I
~5>1"l. __ .J

DI4

XM R
FLG I

R[CIIR

-...-,--.rvv ~ ~1!J;!fJ ')

FlG I

L'I<I

OPI\

W7D7 C~ PROG tN1 RQ
COl5 ~--<>PSM'
TTY CL

XM1R

1"-11
ReC VR API 1l'3 RQ (8)

R£CVR

RR£. I

TTY

XM,R rLG I

lOP I

FLG'

"""ltH ~Lb

lOT

"I/:J au.
'S\)~ \.
II
-If, BU~ 1'2.

J/:J SUS 13

1P BU",- '4

eLI

rp Bllo;, 1'5

1/:> BUSlCO
rP BUS 17
RCL~\

r-____________________

f"OR L T \'3-c
UNIT ONLY
,

W,,70! 1\¢76L'/W¢78A

~~~~
DJ

013

Of'

l::'O~

~D~N~

IH
1"5,,",1

________________~D~S~~
D"T
tlv

RREI

(~ECVR

us)-

;- ~..1~- - ~2-~ ~

NOTES:

APPROPR1!:>.TE
DIODES MUST BE
REMOVED FRO""" W 1(2)3 D£.vILE
S't:LE.CTOR MODULES 1"0 OeT"'lN PRopt.~
5E.L£C'O",,"

• A0!lS
014

~------------------~O~v.LJLj
(~M'R OS)

TO TTY UtHT

v,,!;2j

__ t ~~

CODE-So

~* THESE. CLAMPED LOADS ARt: JUMPERED
IN r-OR:F·UNli5 ONLY WH;::~~ CA~L[ ',C: ',r·J"'r\~TCD.
A '\.
SET f)A'JD RATE TABL'C. (uwG .;:"/h. Y .. _-lq-[-S)

OPGI"'-~~

FOR SELE..CTION OFEXiERNAL RESISTOR (RX~

QTY.

PARTS LIST

~<l

0;\

; ~I ;::
:J::

c;]
u »1

:'::

MATERIAL

=1
FINISH

PART NO.

DESCRIPTION

L Tlg-O

At'lD TlMING CAj)AClTOR. JIJM?£.R P1N (Y),

ITEM
NO.

2 -.a.;n~ III

-----,

1- -Wi=5~

022,

_ _ .J

IOO~ J~ 2

:!>

~
W 7ef:5 J

+3-(" VOLT~

ClR. lOT

C2"2

CL.R lOT
~...,....I------!.>.~----=--::";"T"'"'"'Z CONTROL. ~~::...;.....:....:::..=,....J

I CONTROL--.P

W005

r---

Dec?

R)(

~OT 4{!1Z1

IWC'lQlS

lOT4121
VI\i}' .__"""

N00S~

LIJ~

D22

XIIAT R

C22 RECVR

HG2

FLG 2

DPI ;:

W7~7 ~CDPROG INT RQ

CD2'3 CH'JPSM2

)(MTR

TTY

TOP 1

XMTR

lOT

[",ROG

1N1 RQ

RKVR API

R[CVR

>LG 2

HG 2

XMTR

RRt:. 2

+3.foV

IP BU~ 116

RCLZ

'I/J 'aV5 \I

10-"4122(1)

II:> au"" 12-

tP aU!:> 1'3
-rp au"" 14
tP B\J~ ,':,

-r.p BUS IgJ (B)
1j:J BU~ I I (S)

rp BU5 lC!.lB)
r.b

-l.p 'BU~ 14 (B)

D£
OF

D'5~ B

OS III

1/J BU'!>ICO
IP BU5 17

E.US 13 (B)

J)J

BUS I~(BI ~l.

!j:J Bu5 17 (B) C T

O~
D~

RC.L~ (?

I/:J BUS 1St'S)

W~"70/wr;;76D /W¢78A
D21.

TSOC.~H

ON
OP

psMc

R-RE.2
O"T

~-------------------~

SOl

NOTES:
APPR.OPR1."'-TE
DIODES MUST BE
REMOVED mo,""
W 1~3 OEVICE
SEl.E.CTOR MODULES TO OBTA1N P~OPE.~
SE..U:C,O,," COO{:S.

(R.E.CVR t>5)
l!.lf< THESE. CLAMPED LOAD
ARE
jUMPLR~D IN FoR
"'F' U Nl T S
ONL.Y WHEN CAS,LE IS INSERT~ \)_

'" ll" SEE BAUD R ATE TABLE FOR St::LE.CTION OF

_.J
TSOC

l)Po2

EXTERNAL RESISTOR (RX) AND TIMING CAP AClTOR
JUMPE~ P1N (Yl.

:,l\-CP-LTlq-D-S)
fiRST USED ON OPT IO'I/MOOEL OTY-

LTI9-D

DESCRIPTION

MATERIAL

FINIS~

-f------_+_

PART NO_

M
I1b

~~----------~~~--~~~R~TS~L~IS~T--~----------~~1

-- ...... ----

.." .. O'-I..........-~~ ........ ..

...............

~.,~ . . . . . . . oA . . . . . . . . . . . . . . . .

E: ......._ -__....

C!.R rOT

C~~T

I CONTROL ~~:..:....:......:...:::~..J----~4~~~.....JZ COI'ITROl ~---:...,.....J
r- -

-"L'"

I
IWfHiJS

~o'T ~~41

Rj<

L ~~~ __ .J

ICfl 414a.

W~(/J5. --"-".A~---='"

'" rt; 05 .---'V'J\r-.-C!--I

803

B03

AMTR
FLG '3

RECVR
FlC, 3

OP"I.3

RX
r-

II I~

W023 I

-'":F-':': J

L
AH

PROG

IN1 RQ

AL----{) XMTR

T(")P I

lOT

<; W(/J¢5

l 'tAn REC VR API

PSM 3

XMTR API

FlG 3

PROG

INT RQ

RECVh:

FLG:3

RRL3

rp suo;, \0

TOT 4142.
+3.<DV

Ito

¥> 'BV~ \I

1)0

PWF.

ClR (8) SU
r,b BUS 19) \B) B

1./J BUS 11 (B)' 8M

r,.b BUo l2..lB) ~n;-

TP BUS 1"3 (~, B K
'l,b 'BUS 14 (8)

B 1-\

rj::) BUS Is\a) B f
8f"

!"''St!>

:tP BuS 10(BI ...!' L

lP Bus 17lB'l ~

os's
DS 2.8
OS Co

r-______________________~B~L~~A

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NOTES:
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FRO.....
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St:LE.CTO~
MODULES TO 08TA1'" PI\O?t~

--'

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CLAMPE.D LOAD ARC JUMPt.R£.D
IN tOR ·F~~ UNIT5 ONLY Wf-iE:rJ eM:!>1 F IS Ik\S'LRTED.
SEE E>AUD RATE TA~LE FOR S'E\"~CT10N OF
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CAPACl"TOf'\ ,JUMPER, PI N (YJ.

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LT/9-F

... 123 1

NOlES:
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* 5[\: BAUD RATE TABLE. FOR 5E\..ECT10N OF
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JUMPER,PlN(Y). 1--_I-'-:"'119-D-6)
I'IRST USED ON OPTION/MODEL

If;!,

PARTS LIST

17
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LT19-0

ITEM
NO.

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'lW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ......

.............................. "" ..... .....
~ . . ~., . . . . IfII . . . . . . . . . . . . . -

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S£LECTION COC£S JlR£ OPTIONALL. Y
ASSla.N}lBL£ F"ROM STIlI"lDAl<O PD~-9
DESl~NATION UST. (SE.E L T 19-D F'OR
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PART NO

DESCRIPTION

LTI9-D

t;.;:'l"'iri-----;=~_I

ITEM
NO

MASTER DRAWING LIST
REV. NO. OF

DWO. NO.

TITLE

LET. ' ~HUTS

C-IA-7OQ5891-0-0

-U

DATA COMMUNICATIONS CABLE

A-SP-LT19-H-l

DATA COMMUNICATIONS INTERFACE LT19H

.
0

.
c:

C
D

DATE

CHG. NO.

CATE

DRN.

REVISIONS
REV.

PFRr.US()N B/5i69

APP'D. CHK'D.

DAT~

12/69

PFYFFER

~[ill~lITIlliJ~ffI E QUI P MEN T
cOO n' (~ ~~~~M~~!~~~~

DATI; •
EN9'1 tf', .
lim} ~;i~\f-i
LT19D-2 "*~t:l-',;.. /; ,i ',;,1'1, '/"1/'6, TITLE

R.D.

...J-

6/71

00002

R.D.

PR~~r~'
{ , J.,"1'""1 o~;tJ6'
't 'P. ~'1

DATA COMMUNICATIONS
INTERFACE

P~/J(j£t DATt~
~/// ~~
FIRST USED ON

LT19-D

B~i

f8!M NO.

A Ml

3/4

SCALE
SHEET

SIZEICODEJ

DIU.

l-:'

NUM8ER

LT19-H

I I I I , 'I I I I '1
'X

. .-----,

------------=--~~--~~~~~~~~~~~~~~~~~-n:CGH!TAL IJQUIPI.IENT CORPORATIOI-f

f:JAYNARD, MASSACHUSETTS

.,.'

c"~r' ~-;:;::-·"'"G S~':CtFICATION

II-E_N_e_~_N_r.;_e_~_r~_':G_£_·~_E_C_Ci_!I_CA_T_~O_N__c::::::J
____'t:_o_t:_n_NU_fj._In_ON...C_H_;:t_'T_.l
TITLE

~~~~------.-~-'-~----~----~--~------------~--------------------~------1
TITi~E

Data Communications Interface - LT19B

DATE 9-3-69

Data Cc :7:':l~::ications Interface - LT19B

1.0

LT19 Data Communications (Type L'l'19B).
The LT19H is primarily a special cable. Wbich, When
added 'to the LT19P (Level Converter option), provides
communications capabilit}· with another L'l'19B (.for PDP-9)
or PT0BF (for PDP-B) .•

1.1

The timing and operational characte~istics for the L'l'19E
and F also apply to tbe LT19H.

1.2

The option designation suf!~x letter defines the data comcuhications cable length:

~EVISIONS
DE~t:;IPTION

---

OQ~tQI

lTl9D-

APPD 8V

DATE

1-10-(,0 DIETER

I-t..·?~

DATE

ORIG

:HG f\O
LTISu-

00002

8-4!7O

160 '8"-5'''}0

7005891-1 .

The LT19Hconsists of a special cable and a method of providi.ng
low-cost dat.a communications between a PDP-9 and a PDP-B or
another PDP-9'

LT19-~

,,-2

LTl9-~

-3
" -4
7005891- 5

LT19-HC
LT19;;..Hi)

1.1

LT19-~

SO' Cable
100' Cable
150' Cable
200' Cable
250' Cable

1.3

l:n operation the LT19B appears to itscontl:,ol to be an
EIA level'device, e.g. a DataPhone.

1.4

The LT19H plugs into slots in the LT19D and has as prerequisites, the LT19E and F. The specificiltions for
the LT19 D, ~, & F also apply to the LT19B., .

1.5

There are two independent communications cl~nnels in
each LT19B. In each link the transmitt and receive Baud
rates must be identical.

l _________~~--______~~~~~~~:Q
IAPP~ J ,if") \ +~
I' . . .,::.:--y.;~.!_I_ET_'_ER
...._ _-:._.....~/.-..:'-I_oIiIIIIIll..J...L.:~....,IiiI'
. . .».~,~
...____....I\
...,.........s_p-.lI__L_T.1.9.-.H.-.1_ __
SIZE ICODEI

L:i"

NUMBER

.11

rSEV

SHEET _1_ OF

!!, _

~---------------------------------~l-S~AIZ~E~I~c~sOp--D--E~'--·~~N~U~U~C~E~R--~,-r-----~'~
_
•
• L'!'19-B-l
~ \:_.J
DE:: FOR.A NO

DR.' 108

,,:

~F~C!f!CATION

r:7u:r

ENG~Nt:iEnING SPECI~ICATION

CONTINUATION SHEET

Dat.a Co:::::-,,;mic.::tions Interface - LT19H

TI'TLE

SHEET _2_ 0:: __4_'_

.,,''-, .... ...
.h

COelnNUAnON SHC!T

Datil CommunicctiOUs ·lnterfa.ce • LTl9H

~-----------------------------------------------------------------------I
2.0

10.0

?;:1$re i.s no vendor .supplied equipment for the LT19H

....
3.0
7.0

Same ~~'cpccfication for LT19D

3.0

d:~ckout T~st

System Verification
To verify system operation in the field. the· followi~D8 lnfcttlatioo
may be used.

Procedure

Insur"e that the channel works, both directions all outlined in
section 8.0
..

Insure that the cbaimel on the "otherend" elso lI'orks, tbls should
be another LT19H or PT08...p (uaeaeindec -OS-DSPA.).

Verify that the baud· rates for bOth ends are identicAl.

Plug the LTlg·Heable into 'eaebend. of tbe cOlll:mlnicaUOU

Load the latest version of the LT09/19 Diagnostic lnto tte PDr-~/lS
and prepare to check the chauoel en docerlhcd in £ec~ion
To
add the output to input "Jumper'\' a '7urn&rcr.:n4 Prc:;r_" £111 be
reql'.lred in the "otherend". S~tC8 of 'Turcaro:mll pro&ri1m3" fer
the PDP·8 ~DdPDP~9/15 ere given below:

~h3 LT1~!I will be

cbecked out in two parts. Part one
it: to c]:::ck each channel as an LT19F (EIA Level Converter)
'·'i.'!:h ct:t~';lt j u:::pered to input and program run according
t.el r!"c:-:::~-;;;=~s in "mindec - 09-DSCC-DN ( Addendum to
t!rr;:/:.'i.LS V::'z:gnostic). See LTl9D Eng •. Spec. Section B.O.
:-':. :-:t ·::::0 i::; to insert oDeond of the LT19H Cable (length
Il, L, C, 1), or E) in appropriate output slot for the
(':.~ : -'"
': "1c; .... ~stcd then insert the other end into the
_.~
... _ i:. t l-~32. RemOve the outr:utto input j urr.per used
_.. ,,_ _ ,: l.e ;:':lS. inctall bet\-loen pins 1\.3213 and A32P, rerun
t:: ",:: ,-::; ;'.r. fnr\:. one.
i-'::". ~::~;. -- :.:~c one ~nd two for each ~T19H channel using
·~~,o ............ l.-.:..:cc called for ':111 the plirchase order.Const;. ReC}.
~ 00

2016401

:'.:::CC:"lt::.::-;e '.-fest procedure'
'.i.=~o a:::;::::~:tc~(:e Test operator .must

21/5C20
22/6401)
23/3040
24/1040
25/7000
26/6416
27/5020

successfully rerun the
Tc::·t l'roccc:!ures stated in Section 8.
'"-:he follc\,:il:g docU%:ents and tapes are required for acceptan~e:
t:'1::C]:Ot:::

fl.

b.
c.

9.J.

r·:air..dec-9A"'D8CS-rH
1:3i:::.:lec-9A-DSCC-D
l~indec~¢9-D8CC-DN

PrQ9ram Tape
Writoa--up

11*.

a.o.

Skip on R Flag
JII!}'. - 1

. -Reed
DCA 40
TAD 40
NOP
XMIT
JMp

. 200/104101
201/600200

Skip on R ~laa
_ . .. 1 .

202/7~112
20317l;O~OO

Read
NOP

204I7c:..006

XlllT

205/600200

Jl.iP 200

A~uc~dum·

Doth programs assume channel I, adju.t lOT cod•• a. required
by channel used.

'r:1~

purpose of theLT19B is to send/receive data to another
LT19!-l 01:' PTC8P, since tlle other device (LT19H or PT~BF)
,;;ill r<:l::c.ly be available at the time Cf checkout the
Ac\::cptance of the LT19H must be perfonned on a "stand alone"
ballio.

Nur.'C~R

LT19-H-l
SHIZET _3_ OF

I. .r:,~".L
....!.._

NUMBER
LT19-H-l
OCC F,)RM NO,
ORA 1;08

SHEET

..!:- OF ..!-