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GA21-9152-3
F i l e N o . 3 7 4 0 - 0 01 5
.




' ---"'
IBM3T4eData EntrySystem
systems i,.,L'.::i:,,:;TilXll,"1o
Physicalplanning




ilBnfi
Preface




This manual is intentjed forcompany executives, tBM 3747 Data Canverter ReferencelWarrual
ancl
systemsanalysts,dala processingmanagersand key Operator's Guicle, GA21-g11O
e n t r \ / s u p e r v i s o r si,n s t a l l a t i o ns u p e r v i s o r sp r o g r a m m e r s ,
,
and rlata station operators. IBM 3741 and 3242 Operator,s Guicle:;,
GA21
9 1 3 1a n d c A 2 1 9 1 3 6 .
T h i s m a n r . r ap r o v i d e sg e n e r a li n f o r m a t i o n a b o u t t h e
l
s y s t e m a n d i n s t a l l a t i o ni n f o r m a t i o n f o r c e n t r a l i z e 6 /BM 3740 Systetn rint Chart,GX21 9187
P
k e y r e n t r y . T h e m a r - r u a lo n t a i n sd e s c r i p t i v e n f o r ,
c i
mation about the system and each unit, available IBM 7443,2203 Forms Design Consiclerations,
functionsand features, nd the media. Programming
a GA24 3488.
i n f o r m a t i o n , s u g g e s t i o nfso r s y s t e md e s i g n i n g a n d
,
operating procedurer; are included; and information The IBM Diskette for Stanclarcl
Data lnterchange,
n e c e s s a r f o r p l a n n i n gt h e p h y s i c a li n s t a l l a t i o n f t h e
y o GA21 9182
IBM 3740 Data Entry System'
Dos/vs svstent r,forrratio, for rBM 3540Diskette
l n a d d i t i c r n , b i b l i o g r a p h yo f t e l e p r o c e s s i np u b -
a q lnpttt/Output Unit, GC21 5012.
licationss included.
i
IBM Systern/370 lnstallation Manual Physical
Planning, GC22 7OO4.
Related Publications

IBM 3747 Models 3 and 4 Programmable Work Station
IBM 3741 Data Stat,ion Reference Manual, programming Reference Manual GA21 g194.
,
GA21-9183.
IBM 3741 Models 3 ar;d 4 ProgtrantmableWork Statictn
IBM 3742 Dual DatarStation Ref erence Manual , General lnf orrnation . GA2 I ! 196.
GA21 9184.




F o u r r t hE d i t i o n ( M a 1 '1 9 7 6 1

T h i s i s a m i n o r r e v i s i o n o f G A 2 1 - 9 1 5 2 - 2 i n c o r p o r t a r i n q I ' e c h n i c a l N e w s l e t r e r C j N 2 ' l- 0 2 1 4 .


C h a n g e sa r e c o n t i n u a l l ! m a d e t o t h e i n f o r m a t r o n h e r e r n ; a n y s u c h c h a n q e sw i l l b e r e p o r t e ( l
i n s u t l s e q u { } n tr e v i s i o n s o r t e c h n i c a l n e w s l e t t e 1 5 .


A form for readers'conrments rs provided at the bacl( {)f this publication. lf the forrn
h a s b e e n r e m o v e d , c o m m e n t s m a y b e a d d r e s s e at o I B M c o r p o r a t i o n . p u b l i c a t i o n s ,
l
Department 245, Rochester, Minnesota 55901.



O C o p y r i g h t I n t e r n a t i o n a l B u s i n e s sM a c h i n e s C o r g r o r a t i o n , j g l 4 , 1 g l 6
S ' Y S T E MC O N C E P T
S'tstemOverview 1 PROGRAMMABLE WORK STATIONS
1 . 2 1
The IBM Diskette F u n c t i o n su n d e r A C L p r o g r a mC o n t r o l a1
2 Fearures vailable ith the programmable
A
lBl\,4 741 Models 1 and 2 Data
3 w Work
Station 2
I B M 3 7 4 1 M o d e t s3 a n c l4 p r o g r a m m a b l e Station
. z l
Work Station ACL Translator
. 2 . 2 1
IBM 3142 Dual Data Station S r o r a g e ,4 K A d d i t i o n a l
. . . 2 1
IBM 3147 DaraConverter
l B M 3 5 4 0 D i s k e r t eI n p u t / O u t p u t S Y S T E M D E S I G N C O N S T D E R A T I O N S.
Unit . 3 . 2 2
IBM 3713printer Job Scheduling nd Work Flow
a
A . 2 2
IBM 3715 printer DataLabeling n the Diskette
o . 2 4
I B M 3 7 1 7p r i n t e r S i n g t e n d M u l t i p l e D a t a S e t sp e r D i s k e t t e
a
. 5 Data Recovery
Wlry the Sysrem?
A . 2 4

DI\TA STATiONS PREPARINGFOR THE INSTALLATION
. %
CFIT Operator Disptay
9 C e n e r a lG u i c l e l i n e s
Entelnq Dalr 9 Events
9 . 2 5
Op,erator Guidance .
E s t i r n a t i n g i s k e t t eR e q u r r e m e n t s
D
9 . 2 5
Proqram Control . Centralized ataEntry D
10 . z o
PrograrnChaining L o c a l S o ur c e D e p a r t m e n t
10 . l o
Updatrrrq Dala 't1 RemoteSource Department
. z o
Verifyln., Pu,., E x a m p l eo f E s t i m a t i n gD i s k e t t eR e q u i r e m e n t s
11 . z o
Adding Records to a Batch . .
Summary.
11 . 2 7
Record I nsert Key Entry Programs
1',! D i s k e t t . rC o n t r o l .
Searching Data on Disk .
11 30
Search on Record Address . E x t e r n a lL a b e t s
11 30
Search on End of Data D i s k e t t eL i b r a r y .
12 30
Search on Content and Sequential C a r ea n d S t o r a g eo f t h e D i s k e t t e
Content 12 JZ
Disl 12
Second Disk S y s t e m P r o g r a m m i n gC o n s i d e r a t i o n s
12 36
128-Character Record Card Replacement
t l JO
D i s l 12 37
Prorjuction Statistics T e l e p r o c e s s i n g o g r a m m i n g u p p o r t.
pr S
12 37
Field Torals T e l e c o m m u n i c a t i o nF a c i il t i e sC o n s i d e r a t i o n s
s
I J s
Self Check U n i t B a c k u pC o n s i d e r a t i o n s
I J s
Proof Keyboard E d u c a t i o na n d T r a i n i n g
I J s
Datzr Recorder Attachment
13
l/O Adapter PHYSICALSITE PLANNING AND PREPARATION

"liifrg;;;:;:$ 14
14
't4
S p a c eR e q u i r e m e n t s
E n v ir o n m e n t a lC o n s i d e r a t i o n.s
Temperature nd Hurnidity
a
40
40
40
14.1 40
IBM 3717 Printer Tape and DisketteStorage
15 40
Binary Synchronous Communications Dirt and Air pollution
Adaptor to 41
fiynchronous Clock L i g h t in g
-fermi to 41
n a l Id e n t i f i c a t i o n F i r e P r o t e c t i o nE q u i p r n e n t
to 41
l(ey lock Electrical equirements
R
t b 41
Oper.;ror ldentif ication Card Reader Groundng i
to 41
[:xpanded Commu nications Convenience utlets O
16 41
[:xpanded Communications/Multipoint Power Supply
Drrta 41
Link Control
tb
3 1 4 ' l a n < l3 7 4 2 F u n c t i o n a n d F e a t u r eS u m r n a r y
17
D a t a C o n v e r s i o nv i a t h e 3 7 4 7
19
I n p u t v r at h e 3 5 4 O
20
u N tr s P E c t F t c A T t o t \ t s 42
T e m p l a t e. 42
129 Card Data Recorder 43
3 7 1 i 1P r i n t e r 44
3 7 1 i P r i n t e r 45
3717 Printer 46
3741 Data Station Models 1 and 2
3 7 4 1 P r o g r a m m a b l eW , c r k S t a t i o n M o d e l s 3 a n d 4
37421- Dual Data Statiorr 48
3-141t Data Converter 49
549i Data Recorder 50

3 7 4 0 S Y S T E M C A B L I I N GI N F O R M A T I O N . 51

I N C I { T O C E N T I M E T E R C O N V E R S I O NC H A R T . 52

GLOSSARY . 53

TELEPROCESSING IBLIOGRAPHY
B 56

INDIEX 57
3742 Dual Data Stations 3747 DataConverter




3741 DataStation




IBM 3740 DaraEntry System
SystemConcept




R i r ; i n g o s t s ,e x c e s s i v e r r o r s ,a n d
c l o n g d e l a y sI n t h e J u s t l i k e p u n c h e d c a r d s ,m a g n e t i ct a p e ,
o a t a e n t r y c y c l e c o n c e r na l l c o m p u t e r or other
users.The IBM f a m i l i a rm e d i a ,t h r : I B M d i s k e t t eo f f e r s :
3 7 4 0 D a t a E n t r y S y s t e mi s a n i n t e g r a t r : d
family of
d a l . a n l r y p r o d u c t s t h a t h e l p st h e u s e r
e
a n s w e rt h e s e o O f f l i n e d a t a b a t c h i n gw i t h u n l i m i t e c l
d a l a e r r t r yp r o b l e r n s . datasrorage.

. E a s e f h a n d l i n gs m a l lj o b s a s w e l l a s l a r o e o b s .
o j
SYSTEMOVERVIEW
. D a t a i n t e r c h a n g e e t w e e nd e v i c e s .
b
A k e y e l e m e n to f t h e 3 7 4 ( ) D a t a E n t r y
S y s t e n rr s a n e w
r e u s a b l e e d i a- t h e I B M d i s k e t t e .
m W h e r rc o m p a r e dt o o t h e r n r e d i a ,t h e d i s k e t t e
Thisdiskette on, hasthe
c
s i s t s f a f l e x i b l ed i s k p e r m a n e n t l y
o followingadvantaqes:
e n c l o s e dn a
i
p r o t e c t i v ep l a s t i cp a c k a g e .
The disketteis an econom-
r c a l m e a n sf o r r e c o r d i n ga n d s t o r i n g . R e u s a b i l i t y o r e d u c em e d i a c o s t s .
t
d a t a ,a n d r sa
q u r e t ,I n e x p e n s i v e ,i g h - f u n c t i o n
h m e d i af o r v o l u m e
dataentry. o E a s ye r r o r c o r r e c t i o n .


T h e r e c o r dv o l u m e c a p a c i t y o f o n e o E a s ys t o r a g e . S m a l l , t h i n , a n d l i g h t - w e i g h t ,
d i s k e t t ei s one
r o u q h l y r : q u i v a l e nt o t h a t o f a b o x d i s k e t t e u s u a l l y h o l d s t h e e n t i r e d a y , so u t p u t
of cards. Data from
w f r t t e n o n t h e d i s k e t t ec a n e a s i l y b e the typical key entry statron.
c o r r e c t e do r u p -
d a t e , d e l i m i n a t i n gt h e n e e d t o r e k e y t h e
,
r e c o r oa n o o
s c r a pt h e m e d i a o n w h i c h i t i s r e c o r d e d . P o r t a b i l i t y n c lm a i l a b i l i t y f u s e f u lq u a n t i t i e s
a o of
data.
D a t a c a n b e w r i t t e n o n a n d r e a do f f
o f t h e d i s k e t t ea t
high speed. This property of the cliskette e The ability to back up easily
greatty and re_read ata for d
f a c i l i t a t e sr e c o r d p r o c e s s t n g n d o p e r a t i o n s r e t r a n s m i s s i o nn c a s eo f c o m m u n i c a t i o n se r r o r .
i
a suchas
m a c h i n es e a r c h i n g f d a t a . l t a l s o m a k e l ;
o thc. .
d i s k e , t t e n a p p r o p r i a t em e d i u m f o r d a t a c o m m u n _
a N 4 a c h i n e - a s s i s tre d d o m a c c e s so o f f l i n e
an t batch
i c a t i o n s . S e q u e n t i aa r r a n g e m e no f d a t a r e c o r d s
l t d a t a f i Ie s .
o n t l - r e i s k e t t ep a r a l l e l s r r a n g e m e n o f
d a t Srunchecard d
r e c o r d s . T h e a d d i t i o n o f r a n d o m a c c e s s i r ro f r e c o r d s ,
g
h o w e ' v e r p e r m i t so p e r a t i o n sn o t p r e v i o u sy f e a s i b l e
, l
w i t h o t h e r m e d i a ,s u c h a s c a r d s ,p a p e r f o r m s , o r
l e d g e rc a r c l s .




System Concept
The IBM Diskette Work Station
IBM 3741 Models3 and 4 Programmable

The IBM Diskette(Figure1)permitsincreased key The IBM 3741 Programmable Work Station(Figure3) has
entry functionand greaterversatility product
in the samefunctions and featuresasthe 3741 Data Station,
applications.The disketteis about 8" l2Ocm) square
and plusa programming capability.This programmingcapa-
hasa net capacityof 1898 128-character records- bility expands existing
the and
dataentry applications
about one day's data entry activity. Eachof the diskette's provides the ability to do new applications.The 3741
73 magnetic recording tracksavailable dataentry
for Programmable Work Station comesin two rnodels;
can hold 26 sectorsof up to 128 characterseach. Model3, without binarysynchronous communications,
and Model4, with binarysynchronous communications.

CRT Display: Allows programmers
to
displaymessages includeoperator
that
DisketteDrives




Keyb,oard


Figure 1. IBM Diskette Figure 3. tBM 3741 ProgrammableWoik Station (with Second
Disk Feature)


f BM 3741 Models 1 and 2 Data Station IBM 3742 Dual Data Station

The f BM 3741 DataStation (Figure2) is a key entry The f BM 3742 Dual Data Station (Figure4) is a key
devicewith one operator station, lt hasa keyboard, entry devicewith two operatorstations. Eachstation
diskettedrive,control unit, powersupplies, a six-
and hasits own keyboardand diskettedrive. A common
line CRT display. The 3741 Data Station comesin control unit and set of powersuppliesserve both
two models: Model 1 without binarysynchronous operatorstations. The CRT display hastwo screens
communications, and Model 2 with binary synchronous so that both operatorscan haveindependent ofuse
communications. it at the sametime. Seeindex entriesfeaturesand/
or functions for more information about the station.

Diskette Keyboard CRT Display Kevboard Diskette

CRTDisplay: Allows the operator
to seethe data It is keyed DisketteDrives




:
Keyboar:d Operator'Einterface
with machine


(withSecondDisk Featurel
Figure2, IB[/l 3741 DataSta.tian Figure 4. lBM3742 Dual Data Station


2
The fBM 3747 Data0onverter \ IBM 3540 Diskete Input/Output Unit

The f BM 3747 DataConverter (Figureb) automatically
The IBM 35210 Diskettelnput/Output Unit (Figure6) is a
feeds,reads,and stacksthe diskettes,
convertsthe direct input device. With the 3540, the lgl\lt
datato a computer-compatible format, and records Oist is
supportedas a new medium on System/370.
the data on 1/2" (1.3 cm) magnetictape. The data The 3b40 has
programming supportespecially suitedfor processing
can be used by other tape systems;no programming
information createdby the 3740 Data Entry
supportother than that for normaltapeprocessing Syitem. Two
models available:ModelBi, with a single
are
is required.Optiorral
modesof operationincludetape diskettedrive,
and Model 82, with two diskettedrives.
to disk and binarysynchronous communications.
Operator,s
panel Diskette
Diskette
Hopper




Figure 5, lBM3747 DataConverter


Model 81
Diskette
Operator's
Operator's
Fanel Diskette Panel
Hopper




Model B2


Figure6. IBM 3540 DiskerteInput/Output lJnit


SystemConqept 3
!BM 3713 Printer IBM 3715 Printer

The IBM 3713 Printer(Figure7) provides 3741 with
the The IBM 3715 Printer(Figure8) provides 3741 with
the
the ability to prepare
hard copy offline with or without the ability to prepare hard copy with or without format
formatcontrol. The 37'13printsat a maxirnumrateof control. The 3715 is available two rnodels.Model 1
in
per
40 characters second. printsat a maximumrateof 40 characters secondper
and Model2 printsat a maximumrate of 80 characters
per second.The 3715 hasbidirectional printing(prints
left to right and then right to left). Other functionsinclude
comprehensive iting capabil
ed ity.




Figure 7 lBM 3713 Printer




Figure 8. IBM 3715 Printer
IBM 3717 printer

The f BM 3717-prlnter(Figure9) provides
the 3741 with
thraability to prepare
hard copy at a high print ratewith or
without format control. The 37,1 7 at a rare up to
155 linesper minutewhen usinga "un-print
g-character and
set up
to 120 linesper minute when usinga 64_character
se|
the charactersetsare interchangeable.
The SZt Z usesan
engraved font that providesimprovedlegibility. Other
functionsincludecomprehensive editinjcapabil ity.




System Concept s
WHY THE SYSTEIII? . I B M 3 7 4 1 M o d e l2 o r 4 w i t h B S C , A

K e ye n t r y o p e r a t o lra b o ri s o n e o f t h e p r o m i n e n f a c t o r s
t I B M 3 7 4 7 D a t aC o n v e r t ew i t h B S | C A .
r
in risingdataentry r;osts.Therefore, irnprovement of
o p e r a t o p r o d u c t i v i r i y e x t r e m e l ym p o r t a n t n c o n t r o l l i n g
r s i i o I B M S y s t e m s / M o d e l6 , M o d e l1 0 D i s kS y s t e mo r
3 ,
theserising costs. The 3740 systemfeaturesare aimed M o d e l1 5 w i t h B S C A .
dt.


I B M S v s t e m / 3 7v i aa n :
O
o [Vlaking
volumekl'yingin the centralized
keypunch I B M 2 7 0 1 D a t aA d a p t e rU n i t
room a high productivityoperation. I B M 2 7 0 3T r a n s m i s s i Cn n t r o U n i t
oo l
I B M 3 7 0 4 C o m m u n i c a t i o n so r r t r o l l e r
C
o Changing dataentry from puretranscription an
ro I B M 3 7 0 5 C o m m u n i c a t i o n so n t r o l l e r
C
application
orientedoperation. I n t e g r a t eC o m m u n i c a t i o n sd a p t e r( l C A ) .
d A

I n a c e n t r a l i z etd a n s c r i p t i oe n v i r o n m e n ts e e p p e rp a r t
r n ( u The 3740 conceptof an integrated amily of devices sed f u
o f F i g u r e1 0 ) ,a t y p i , c ailn s t a l l a t i oin c l u d e a n u m b e r f
n s o i n b o t h t h e c e n t r a l i z e da n d s o u r c ed a r t a n t r y e n v i r o n m e n t s
e
IBM 3742 Dual DataStations recording for dataon dis- p r o v i d e st h e s o l u t i o n , n o t o n l y t o r i s i n gc o s t s ,b u t t o
kettes. An IBM 3747 DataConverter included convert is to excessiverrors. By movingthe data entry function f rom
the datato %" i.1.3 cm) tapefor processing the host by t h e k e y p u n c h r o o m o u t t o t h e d a t a s o u r c e .d a t a c o n t r o l
processing it. un f u n c t i o n s s u c h a s p r e p a r a t i o no f k e y p u n c h w o r k s h e e t s n d
a
c o d i n g c a n o f t e n b e r e d u c e do r e l i m i r r a t e d .M o r e o v e r ,
A d e c e n t r a l i z e d s o u r c e e p a r t m e nk e y i n ga r e a( s e e
or d t e r r o r sa r e r e d u c e db y e l i m i n a t i n gh a n r l t r a n s c r i p t i o n
l o w e rp a r t o f F i g u r e 0 ) i s u s u a l l y h a r a c t e r i z e d a
1 c by o p e r a t i o n sa n d h a v i n gt h e d a t a c o m p l e t e l y h a n d l e d b y
r e l a t i v e ls m a l ln u m b e ro f k e y e n t r ys t a t i o n so c a t e d n
y l i t h o s e w h o a r e m o s t f a m i l i a r w i t h i t a n d h a v ed i r e c t r e s -
the clata source area. Source departments may be either p o n s i b i l i t yf o r i t s a c c u r a c v .
l o c a l , n t h e v i c i n i t yo f t h e d a t ap r o c e s s i n g s t e m a n o
i sy s
u s i n q e s s e n g s e r v r c o r i n t e r n a m a i lf o r d e l i v e r y f
m er e l o D a t a p r o c e s s i n g s e r sw h o p l a n t o d e c e n t r a l i z eh e i r d a t a
u t
d a t a ,o r r e m o t e r e l y i n g n m a i lo r t e l e c o m m u n i c a t i o n s
; , o e n t r y o p e r a t i o n sm u s t s t i l l c o n t r o l t h e i r c o s t si n c e n t r a l z e d
i
for clelivery data. The successful
of decentralization the of d a t a e n t r y a r e a st o d a y . T h e 3 7 4 0 s y s t e m p r o v i d e st h e
d a t ae n t r yf u n c t i o nu s u a l l y e q u i r e s p e c i afle a t u r e s o t
r n f e a t u r e sn e e d e dt o i n c r e a s e r o d u c t i v i t y i n t o d a y ' s k e y -
p
n o r n r a l l yo u n d i n k e y e n t r yd e v i c e sT h e 3 7 4 0 s y s r e m
f . p u n c h r o o m a n d a t t h e s a m et i m e , d e c e n t r a l i z e a t a e n t r v
d
p r o v i d es u c hc o m m o n l yr e q u i r e de a t u r e a sa p r t n r e r ,
f s a p p l i c a t i o n s i t h o u t c h a n g i n gt o a n e , wa n d p o s s i b l y
w
t e l e p r r e s s s 5c n t a b i l i t yo p e r a t og u i d a n c e ,n d l a r g e
lap , r a i n c o m p a t i b l ed a t a e n t r y s y s t e m .
datastorage reference entry. In a decentralized
for and
environment, several 3741sand3742sarescattered Each station in the 3740 system operates independ-
throughlargeinstallations the source in departments. ently with its own media. The 3740 Data Entry System
For instance, mi,Eht in the accounts
one be payable p r o v i d e st h e f o l l o w i n g a d v a n t a g e s :
department, wheredata is entered directlyfrom vendor
i n v o i c e sO t h e r3 7 4 1 1 i g h tb e i n t h e p a y r o l ld e p a r t m e n r
. sm I U n l i m i t e d d a t a s t o r a g ea t t h e s t a t i o n .
to enterchanges s,alaried to payroll. Diskettes sentby are
interplant mail or messenger somelocationhaving
to an o Ouiet dataentry.
IBM 3747 DataConv'erter.
. S t a t i o n i n d e p e n d e n c e n d s y s t e mr e l i a b i l i t y . ( E a c h
a
I n a i t y p i c arle m o t e n v i r o n m e n(ts e e i g u r e1 1 ) ,o n e o r
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morer 3741sarelocatedat various offsite locations.ln o f o t h e r s t a t i o n so r d o w n t i m e o f o t h e r f a c i l i t i e s . )
areas wherethe workloadis heavy,thesemight be supple-
mentedwith some3',142s. example, partsareFor if . T o t a l c o n f i g u r a t i o nf l e x i b i l i t y .
distributed from a wilrehouse several to divisions a of
company, the irrventory data is entered diskettes
on as o Smooth growth by adding exactly ils many stations
transactions occur. Periodically. data is transmitted
the a sa r e n e e d e d .
to the warehouse thr,ough 1 Model2 or 4 with binary
374
s y n c l r r o n o u s m m u n i c a t i o n s .h e r e c e i v i nd e v i c e t
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Figure '!0- PossibleConf igurations for Centrali::ed Transcription
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System Concept 7
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3741 Model2 or 4




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Figure11. Possible
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