Bell System Practices Plant Series User manual

BELL
SYSTEM
PRACTICES
Plant
Series
SECTION
512-115-100
Issue
2,
May,
1964
AT&TCo
Standard
KS-16844
RAPIDIAL
1.
GENERAL
1.
01
This
section
covers
identification,
operation,
installation,
connections,
and
maintenance
of
KS-16844,
List
1
Rapidial
and
the
KS-16844,
List
10
Rapi-
dial.
1.
02
This
section
is
reissued
to:
•Add
information
on
the
power-
driven
scan
(List
10)
•Show
connections
for
various
type
switchboards.
1.
03
List
1
units
may
be
returned
to
the
distributing
house
for
modification
to
List
10
units.
1.
04
Switchboard
connections
and
ordering
information
is
covered
in
7
and
shown
in
Table
C.
WRITING
TAPE
RELEASE
START
INSTRUCTION
2.
IDENTIFICATION
2.
01
The
KS-16844
Rapidial
(Fig.
1
and
2)
is
a
magnetic-type
repertory
dialer
used
in
conjunction
with
a
customer
tele-
phone
set.
It
records,
stores,
and
trans-
mits
dial
pulses.
2.
02
Connecting
a
Rapidial
to
the
telephone
set
will
not
affect
the
normal
oper-
ation
of
the
telephone.
For
ease
of
oper-
ation,
the
Rapidial
should
be
located
near
the
telephone
set.
2.
03
Cord
connections
are
required
be-
tween
the
telephone
set
and
the
Rapidial
and
between
the
Rapidial
and
the
low-voltage
power
supply.
The
power
supply
(List
2)
is
shown
in
Fig.
3
and
4.
2.
04
Rapidial
provides
writing
space
for
the
entry
of
290
names
and
telephone
numbers
on
a
revolving
tape.
A
scan
knob
TIME
DELAY
BUTTON
LIST
4
TELEPHONE
LIST
3 POWER
J
SUPPLY
CORD
Fig.
1 -
KS-16844,
List
1
Rapidial
~
American
Telephone
and
Telegraph
Company,
1964
Printed
in
U.S.
A.
Page
1
TCI Library: www.telephonecollectors.info

SECTION 512-115-100
WRITING TAPE
SCAN
SWITCH -----..:...::~~~ m.. .
Fig. 2 - KS-16844, List 10 Rapidial
on the right side of the machine is provided
for manual rotation of tape. The List 10
Rapidial has a motor-driven tape for rapid
scanning.
2. 05 Names and numbers are written on
the tape with a lead pencil so changes
can be made, if required, by erasure.
< Instruct subscriber to use kneadable
eraser to prevent eraser residue
from darkening tape.
The dial on the Rapidial unit is u se d
only to record numbers on the tape
and is inoperative (locked}, when the unit
is not in recording condition.
2. 07 The list numbers for the components
are:
(a) KS-16844, List 1 Rapidial includes:
Page 2
( 1)
List 3 - Power Supply Cord
(4 conductors, 8 feet long)*
(2) List 4 - Telephone Cord
(6 conductors, 8 feet long)>:'
(3) List 6 - Tape Assembly (Manual)
(b) KS-16844, List 10 Rapidial includes:
( 1) List 3 - Power Supply Cord
(4 conductors, 8 feet long)':'
(2) List 4 - Telephone Cord
(6 conductors, 8 feet long)*
(3) List 12 - Tape Assembly
(Power Driven)
(c) Housings are not included with the
List 1 or 10 Rapidial. They shall be
ordered separately as required.
(1) List 20 - 51 Housing (Green)
(2) List 20 - 58 Housing (White)
(3) List 20 - 50 Housing (Beige)
(4) List 20 -61 Housing (Grey).
TCI Library: www.telephonecollectors.info

(d)
KS-16844,
List
2
Power
Suppl
y t
(equipped
with
List
5
power
cord
t
must
be
ordered
separately.
':'
Lists
3
and
4
available
in
grey
only.
t
Lists
2
and
5
available
in
light
olive
grey.
2.
08
Example
of
a
typical
order:
1
each
-
Ra
pi
dial
KS-16844,
List
10
1
each
-
Housing
KS-16844,
List
20-51
1
each
-
Power
Supply
KS-16844,
List
2
SUPPLY
POWER CORD
Fig
. 3 -
Power
Supply
Fig.
4 -
Power
Supply
(C
ove
r
Removed)
ISS
2,
SECTION
512-115-100
3.
OPERATION
3.
01
The
operation
of
List
1
and
List
10
Rapidial
sets
are
similar
with
ex
-
ception
of
the
power-driven
scan
on
List
1
0.
3.
02
Operation
of
release
latch
and
re-
cord
bar:
•Opens
plastic
window
to
expose
writing
tape.
An
entry
is
made
on
writing
tape,
with
lead
pencil,
for
future
reference.
•Erases
previous
recording
on
magnetic
tape.
•Unlocks
dial
mechanism
for
record-
ing
telephone
number.
Dial
is
normally
locked.
Operat
ion
of
record
bar
automatic-
ally
er
ases
a
portion
of
the
telephone
number
previously
recorded
on
magnetic
tape.
When
demonstrating
Rapidial,
turn
writing
tape
to
a
blank
space
before
operating
record
bar.
3,
03
When
record
bar
is
operated,
a
small
red
button
is
exposed.
Press-
ing
this
button
injects
a
time
delay
of
three
seconds
between
digits
being
recorded.
Onl
y
one
time
delay
per
complete
record-
ing
is
possible.
An
examp
le
of
a
required
time
delay
would
be
the
pause,
after
dial-
ing
digit
9
from
a
dial
PBX
station,
for
a
central
office
trunk
connection.
Since
central
office
dial
tone
may
not
be
heard
immediately,
a
time
delay
is
provided
to
prevent
Rapidial
from
pulsing
before
cen-
tral
office
dial
tone
is
available.
3.
04
The
L
ist
10
Rapidial
(List
12
tape
cartridge)
is
equipped
with
a
scan
switch
and
limit
switches
to
prevent
run-
ning
the
tape
off
the
drums.
The
writing
tape
is
imprinted
with
a
series
of
dots
which
correspond
with
the
guide
letters
on
the
bottom
of
the
plastic
window.
Final
adjustments
to
line
up
desired
number
be-
tween
guide
lines
on
window
is
made
with
manual
scan
knob.
3.
05
To
record
a
telephone
number,
pro-
ceed
as
follows:
( 1)
Check
director
y
listing
of
number.
.
Page
3
TCI Library: www.telephonecollectors.info

SECTION
512-115-100
(2)
Locate
an
unused
space
on
writing
tape
for
new
entry
by
rotating
scan
knob,
(3)
Move
release
latch
to
right
and
slide
record
bar
down.
(4)
Use
lead
pencil
to
enter
name
and
telephone
number
on
writing
tape.
(5)
Record
new
telephone
number
by
using
dial
on
Rapidial.
Refer
to
3.
03
for
use
of
time
delay
button.
Rap-
idial
is
capable
of
recording
13
digits.
(6)
Restore
record
bar
by
releasing
latch,
3,
06
To
place
a
call,
proceed
as
follows:
(1)
Operate
scan
switch
and
rotate
scan
knob
until
desired
telephone
number
appears
between
horizontal
black
lines
on
plastic
window.
(2)
Lift
telephone
handset.
(3)
Wait
for
dial
tone.
(4)
Depress
start
bar.
(
5)
If
there
is
a
delay
in
dial
tone
and
Rapidial
has
started
pulsing
before
central
office
dial
tone
is
heard
(for
example,
when
dialing
a
central
office
from
a
dial
PBX
station),
customer
should
hang
up
immediately.
Rapidial
will
continue
pulsing
through
a
complete
cycle
with
an
on-hook
condition
of
the
associated
telephone
set.
(6)
When
placing
call
from
a
key
tele-
phone
set,
caution
customer
not
to
answer
an
incoming
call
on
another
line
while
Rapidial
is
pulsing.
Rapidial
cir-
cuitry
is
common
to
all
lines
in
the
set
and
hence
the
pulsing
will
be
carried
over
to
the
answered
call.
3.
07
To
remove
a
recorded
telephone
number
from
Rapidial:
(1)
Position
the
number
between
hori-
zontal
black
lines
on
plastic
window.
(2)
Operate
latch
and
record
bar
(see
3.
).
Page
4.
(3)
Remove
entry
from
writing
tape
with
an
artists
rubber
kneadable
eraser
such
as
Faher-Castell.
(4)
Restore
record
bar.
4.
INSTALLATION
4.
01
Before
choosing
a
location
for
Rapidial
and
power
supply
refer
to
C
Section
entitled
Separation
and
Mechan-
ical
Protection
for
Wire
and
Cable.
4.
02
Select
a
convenient
location
near
customer
telephone
set
and
115-volt
ac
receptacle.
To
avoid
placing
Rapidial
in
a
magnetic
field,
do
not
locate
it
adja-
cent
to
electric
typewriters,
desk
calcu-
lators,
etc.
4.
03
Complete
Rapidial
assembly
is
shipped
in
three
separate
cartons
as
follows:
•
Carton
1
(Fig.
5)
List
1
Rapidial
List
3
Power
Supply
Cord
List
4
Telephone
Cord
List
6
Tape
Assembly
or
List
10
Rapidial
List
3
Power
Supply
Cord
List
4
Telephone
Cord
List
12
Tape
Assembly
(Fig.
11)
•Carton
2:
List
20-(
)
Housing
•Carton
3
(Fig.
2)
List
2
Power
Supply
List
5
Power
Cord
4.
04
Assemble
Rapidial
housing·
and
scan
knob
in
the
following
manner:
(1)
Place
housing
on
Rapidial,
(After
re-
moving
fill
washers
at
scan
knob
open-
ing
in
housing,
if
provided)
positioning
front
portion
of
housing
first;
then
lower
into
place.
(2)
Invert
Rapidial,
place
the
four
housing
screws
into
holes
provided
in
base,
and
tighten
(Fig.
6),
TCI Library: www.telephonecollectors.info

/
!SS
2,
SECTION
512-115
-
100
Fig.
5 -
KS-16844
Rapidial
(Housing
Removed}
(3)
With
Rapidial
inverted,
insert
scan
knob
into
position,
making
certain
it
properly
engages
tape
assembly
(Fig.
6
and
9).
(4)
To
lock
scan
knob
to
tape
assembly,
insert
locking
screw
through
hole
provided
in
base
and
tighten
(Fig.
6).
Avoid
plugging
power
cord
into
ac
receptacle
until
local
wiring
is
completed.
4.
05
Telephone
and
power
supply
cords
are
eight
feet
long.
The
free
ends
are
not
spade-tipped
to
facilitate
cutting
the
conductors
to
meet
local
conditions.
Power
supply
cord
is
a
gray
vinyl-
jacketed
4-conductor
cord.
Tele-
phone
cord
is
a
gray
vinyl-jacketed
6-conductor
cord.
Interchanging
these
cords
may
damage
Rapidial.
4.
06
The
power
cord
is
8-3/4
inches
long
which
necessitates
mounting
the
power
supply
in
close
proximity
to
115-volt
ac
outlet.
If
necessary
to
mount
power
supply
at
a
distance
from
Rapidial,
terminate
power
supply
cord
on
a
42A
~-
--
HOUSING
SCREWS--
---~
~SCAN
KNOB
SCAN
KNOB
LOCKING
SCREW
~-
-
--HOUSING
SCREWS---~
Fig.
6 -
Rapidial
Inverted
connecting
block
and
run
4-conductor
inside
wire
to
power
supply.
Total
dis-
tance
from
power
supply
to
Rapidial,
including
the
8-foot
power
supply
cord,
should
not
exceed
38
feet.
Page
5
TCI Library: www.telephonecollectors.info

1::)
Ill
(l'Q
~
O'
TABLE
A
TELEPHONE
SET
CONNECTIONS
300
Series
400
Series
500
Series
Rapidial
All
300
All
400 440
and
460
All
500
Tel
series
series
series
series
532B
565H
Cord
except
except
462AC
except
SOOF
5110
332C
334C
306G
(
4-
and
6-
533B
SOOS
565L
556G
those
those
button
466AC
those
50lF
535B
5580
566MB
listed
listed
sets)
listed
to
right
to
right
to
right
Remove
Remove Remove
F
Remove
Rernove
BR-Y
lead
of
BL
dial
Remove
BR-Y
Remove
Y
lead
G
lead
mounting
lead
W
lead
Remove
BL
dial
lead
from
F
lead
from
Y
lead
from
from
L2Y
from
term.
on
network
and
term,
on
dial
Y
term.
on
from
Y
cord
from
from
F F
term.
term.
term.
on
LI
on
term.
or.
and
dial
and
induction
on
network
on
dial
coil
and
term.
network
and
p
BL
and
strip
and and
u
1-o------'-
____
,
_
___
,
______
----
___
,
____
,_
------
---------
L
Connect
to
BL
of
Rapidial
Connect
to
BL
of
Rapidial
s
telephone
cord
with
telephone
cord
with
Connect
to
BL
of
Rapidial
tele-
I
phone
cord
with
0-161488
connector.
N
0-161488
connector.
D-161488
connector.
G
y
L2Y
Ll
term.
term.
term.
G Y
terminal
on
dial
on
F
terminal
on
network
on
in
due
tion
in
dial
coil
set
0
E
w
F
GN
term.
post
bN
term.
GN
term.
w
~N
term.
F
on
on
terrn.
term.
w
on
on
GN
term.
on
network
induction
on
induction
on
term
induction
on
151B
N
coil
coil
coil
dial
network
0
strii:
amplifier
R
M w R
terminal
R
terminal
on
induction
coil
R
terminal
on
network
A
on
induction
coil
L
s
Term.
1
Term.
11
p
Tape
and
store
in
telephone
Tape
and
store
in
telephone
Tape
and
store
ON
term.
on
ion
term.
on
term.
y
term.
strip
E
set.
set.
in
telephone
set
strip
in
strip
in
A
set
set
in
set
K
E
Connect
R
ONl
to
0-W
p
Term.
6 G
term.
mounting
H
Tape
and
store
in
telephone
Tape
and
store
in
telephone
Tape
and
store
Pn
term.
term.
on
cord
y
0
set.
set.
in
telephone
set
strip
in
on
term.
conductor
N
set
network
strip
with
E
in
set
0-161488
connector
*
Increase
depth
of
housing
mounting
cord
entrance
hole
1/16
inch,
using
3-1/2
inch
half
round
file.
) ) ) )
600
Series
All
600
series
610A
except
6JOA
Remove
Remove
BL
dial
lead
Y
dial
lead
from
from
F 6
term.
term.
on
of
TS
2
network
and
and
----
-------
Connect
to
BL
of
Rapidial
telephone
cord
with
D-161488
connector.
F
Term.
term.
6
on
of
network
TS
2
GN
Term.
term.
l
on
of
network
TS
2
R
Term.
term.
2
on
of
network
TS
2
w
Tape
and
stare
term
in
on
dial
telephone
set
BB
Tape
and
term.
on
store
in
dial
telephone
set
)
700
Series
701B
7010
7 l
lB*
Remove
BL
dial
lead
from
F
term.
on
network
and
cun-
nect
to
BL
of
Rapidial
telephone
cord
with
D-161488
connector.
F
term.
on
network
GN
term.
on
network
R
term.
on
network
Tape
and
store
in
telephone
set
Tape
and
store
in
telephone
set
(/}
M
()
1-j
H
0
z
U1
......
N
I
......
......
U1
I
......
0
0
TCI Library: www.telephonecollectors.info

~·--
4.
07
Power
supply
may
be
mounted
with
three
No.
6
or
8
wood
screws.
Two
retaining
screws
hold
cover
in
position
{Fig.
3).
Power
supply
cord
is
fed
through
cutout
in
cover
and
secured
under
cord
clamp.
4.
08
Rapidial
is
shipped
with
List
3
power
supply
cord
terminated.
Cut
free
end
of
cord
to
desired
length,
strip
outer
jacket,
twist
stranded
conductor
ends,
and
terminate
on
power
supply
terminal
strip.
4.
09
Power
cord
shall
plug
into
a
115-volt
ac
receptacle
not
under
control
of
a
wall
switch.
The
low
voltage
power
supply
consists
of
two
voltages:
19.
5
and
2
6.
5
volts
ac.
Rapidial
is
protected
by
a
24C,
2-ampere
fuse
located
on
terminal
strip
in
power
supply
{Fig.
4).
4.
10
Rapidial
is
shipped
with
List
4
tele-
phone
cord
terminated.
{
1}
Cut
free
end
of
cord
to
desired
length.
{2}
Strip
outer
jacket
and
twist
stranded
conductor
ends.
ISS
2,
SECTION
512-115-100
{3}
Terminate
conductors
in
telephone
set
as
outlined
in
Table
A
or
B.
{4}
Secure
cord,
inside
telephone
set,
under
cord
clamp
or
by
taping
it
to
telephone
set
mounting
cord.
(5)
Make
certain
conductors
are
properly
dressed
so
as
not
to
interfere
with
normal
operation
of
telephone
set.
4.
11
After
assembling
Rapidial,
it
is
necessary
to
adjust
start
bar
for
operation.
This
is
accomplished
in
the
following
manner:
(
1}
Connect
to
power
outlet.
(2)
Position
Rapidial
upside
down.
(Be
sure
to
protect
cover
from
scratches.)
(3)
Start
bar
adjustment
screw
can
be
reached
through
base
of
Rapidial
by
aligning
hole
in
the
instruction
card
with
hole
in
base
(Fig.
6).
(4)
Using
a
3-1/2
inch
screwdriver,
turn
screw
clockwise
and
revolve
scan
knob
until
a
clicking
sound
is
heard.
TABLE
B
200
SERIES
TELEPHONE
SETS
-
CONNECTIONS
Connections
Made
in
Subscriber
Set
Rapidial
Telephone
Cord
Type
of
Inside
Wire
Service
Pulsing
Off-Normal
Speakerphone
R G y
BL
G
w w
y y
Individual
Tape
or
Ground
L2-Y
and
Ground
Ll
Tape
Tape
Bridged
store
and and
GN
R
store store
Ring
Ll
Connect
L2-Y
in in
Party
Connect
1
r;round
elephone
telephone
BL
of
BL
of
set
set
Tip
Rapidial
L2-Y
Rapidial
Ll
Party
telephone
telephone
211
cord
to
R
cord
to
R
Telephone
of
inside
Ll
G
of
inside
L2
GN
B 1 G
with
wire
with
on
on
wire
with
on on
on on on
685A
D-161488
term. term.
D-161488
term.
network
network
term.
network
subscriber
connector.
strip
strip
connector
strip
strip
set
Page
7
·--------
TCI Library: www.telephonecollectors.info

SECTION
512-115-100
(5)
Back
off
on
screw
approximately
one
to
one
and
a
half
turns
so
that
clicking
sound
disappears.
On
power
driven
scan
model,
also
check
that
scan
switch
is
free
in
both
directions.
4.
12
Test
operation
of
Rapidial
by
recording
and
calling
the
telephone
number
usually
called
for
job
completion.
5.
CONNECTIONS
5.
01
Rapidial
pulsing
contacts
(BL
and
G
telephone
cord
conductors)
are
placed
in
series
with
the
ring
side
of
the
line
for
200-type
telephone
sets
and
in
series
with
dial-pulsing
contacts
in
all
other
type
sets.
5.
02
Two
sets
of
off-normal
contacts
(Fig.
5,
7,
and
8)
are
provided.
Their
function
is
the
same
as
the
off-
DRAW
TAPE
RECORDING
HEAD JACK
BASE
LOCKING
CL.AMPS
----<.
Kl RELAY
normal
contacts
in
a
con
v
enti
o
nal
dial,
to
reduce
receiver
clicks
during
oper
a
ti
on
of
Rapidial.
•White
off-normal
leads
are
pla
ce
d
across
recei
v
er
contacts
in t e l e -
phone
set.
•Yellow
off-normal
leads
are
placed
across
loudspeaker
contacts
(P3
an
d
P4
leads)
in
speakerphone
installa
-
tions.
6.
MAINTENANCE
Disconnect
power
cord
before
remo
v
ing
h o
using.
Power
should
remain
disconnected
w
hen
not
re-
quired
for
immediate
maintenance
operations.
RECORD BAR
LEAF
SPRING
TAPE
ASSEMBLY
RETAIN
ING SCREW
START
BAR
ADJUSTMENT
SCREW
Fig.
7 -
KS-16844
Rapidial,
List
6
Tape
Assembly
Removed
(Front
View)
Page
8
TCI Library: www.telephonecollectors.info

/
ISS 2, SECTION 512-115-100
RECEPTACLE FOR RECORDER PLUG
Fig. 8 - KS-16844 List 2 with List 12 Tape Assembly Removed
6. 0 l Maintenance on Rapidial is limited
to items covered herein.
6. 02 Housing is removed from Rapidial
in the following manner:
•Invert Rapidial, loosen scan knob
locking sere~ and remove scan
knob (Fig. 6).
•Loosen four captive housing screws.
•Turn Rapidial right side up and
remove housing.
6. 03 Should Rapidial fail to operate after
depressing start bar, check the
following:
•AC power source.
• 24C, 2-ampere fuse located on
terminal strip in power supply
(Fig. 4).
•Voltage between terminals 2 and 1,
and 2 and 3 on terminal strip in
Rapidial with v oltmeter (Fig. 5).
•Burnish Kl relay contacts (Fig. 7
and 8).
•Start bar travel with housing rn
place (see 4. 04 and 4. 11).
6. 04 Replacement of parts in List 1 or
List 10 Rapidial is limited to tape
assembly. To remo v e tape assembly,
proceed as follows:
( 1) Disc onnect recording head plug from
jack (Fig. 10). On List 12 cartridges
disengage scan motor power lead plug
from jack (Fig. 11 ).
(2) Release three base-locking clamps by
turning screws 1/4 turn in counter-
clockwise direction (Fig. 7, 8, and 10) .
(3) Loosen retaining screw on front right
side of tape assembly (Fig. 7, 8,
and 9).
Page 9
TCI Library: www.telephonecollectors.info

SECTION
512-115-100
(4)
Grasp
tape
assembly
with
right
hand
on
either
side
of
writing
tape
window
frame.
Lift
slowl
y,
carefully
disengaging
recording
head
carriage
pin
from
hole
in
draw
tape
tab
(Fig
.
7,
8,
and
10)
.
6.
05
To
insert
tape
assembly
in
Rapidial;
proceed
as
follows:
( 1)
Make
certain
start
bar
mechanism
is
not
operated.
If
operated,
plug
in
power
cord
momentaril
y
until
Rapi-
dial
has
rec
y
cled.
(2)
Grasp
tape
assembl
y
as
explained
in
6.
04.
C
arefully
lower
tape
assembly
into
p o
sition,
makin
g
certain
recording
head
carriage
pin
properly
engages
hole
in
draw
tape
tab
(Fig.
7,
8,
and
10).
ASSEMBLED
POSITION
OF
RECORD
BAR
LEAF
SPRING
WITH LATCH
RETAINING
SCREW
RECORD
BAR LATCH
(3)
L i
ft
front
of
tape
assembly
sufficiently
to
allow
record
bar
leaf
spring
to
clear
record
bar
latch
.
Hold
spring
up
with
3-1/
2
inch
screwdri
ve
r
and
lower
front
of
tape
assembly
into
position,
al
-
lowing
record
bar
leaf
spring
to
rest
upon
record
bar
latch
(Fi
g.
7,
8,
and
9).
(4)
Grasp
in
right
hand
and
position
tape
assembly
over
unit.
(5)
Place
wiring
from
motor
around
the
front
and
left
side
of
the
cartridge
assembly.
(6 )
Lower
tape
assembly
onto
base,
carefully
engaging
recording
head
pin
in
hole
in
draw
tape
tab
.
Fig.
9 -
List
6
Tape
Assembly,
Front
View
Pa
ge
10
TCI Library: www.telephonecollectors.info

~ .
ISS 2, SECTION 512-115-100
RECORDING HEAD
PLUG----'
RECORDING HEAD
CARRIAGE PIN
Fig. 10 - List 6 Tape Assembly Rear View
(7) Line up tape assembly so all four
lugs fall in base slots.
(8) Lift front of tape assembly approx-
imately 3/ 4 inch and push record
bar leaf spring back (with 3- 1/2 inch
screwdriver) about 1/2 inch.
(9) Lower tape assembly, allowing
spring to rest on latch (Fig. 9).
(10) Be sure all lugs on tape assembly
are engage d with base slots.
(11) Secure base locking clamps
(Fig. 7).
( 12) Secure tape assembly retaining
screw.
( 13) Place scan locking lever on shaft.
Line lever with slot in scan switch
(vertically) with top edge of scan lock-
ing lever approximately 1/32 inch be-
low scan switch (see Fig. 2, 11,
and 12). Operate the start lever and
verify that scan switch will not operate
in either direction. Operate release
(Fig. 2). Hold scan switch operated to
ri gh t and verify that start lever will not
operate. Repeat with scan switch oper-
ated to left . Verify that spline screws
in scan locking lever are tight.
( 14) Connect recording head plug to jack
and connect motor leads to recepta-
cle placed in Step 6. Dress wires be-
hind large capacitor to clear recording
head travel.
(15) Replace housing [ 4. 01 (l)] and scan
knob.
( 16) Readjust start bar per 4. 11.
(17) Remind cust o mer to record num-
bers on ne w tape (recording instruc-
tions are on base and in 3. 03).
6. 06 Should Rapidial operate but fail to
reach called number, make the
following check:
(1) Select a blank space on writing tape
and record a known telephone number
(see 3. 02 and 3. 03).
(2) Place lOllB test set (with button in
monitoring position) across BL and
G leads of Rapidial telephone cord
(Fig. 5).
(3) Initiate call, listen for pulsin g clicks;
if pulsin g clicks are not heard or if
heard and wrong number is reached (and
telephone set operation is normal), re-
place Rapidial.
Page 11
TCI Library: www.telephonecollectors.info

S
ECTION
512
-
115-100
RECORD
BAR
CONNECTOR PLUG \
BASE
LOCKING
CLAMP
SLOT
SCAN LOCKING
LEVER
SLOT
SCAN
SWITCH
SCAN SWITCH CONTACTS
Fig.
11 -
List
12
Tape
Assemb
l y
1/
32
IN.
CLEARANCE
Fig.
12
-
KS-16844
List
10
Start
Lever
Mechanism
Page
12
TCI Library: www.telephonecollectors.info

,
'-- ~----
ISS 2, SECTION 512-115-100
6. 07 Should Rapidial require replacement due to electrical or
mechanical failure, proceed as follows:
( 1) Order List 1 or List 10 Rapidial unit, as required.
(2) Remove tape assembly from new Rapidial and replace
with tape assembly from defective unit. This is done to
avoid re-recording customer entries to new tape assembly.
(3) Place new tape assembly in defective Rapidial and return
for repairs.
6.08 Fig. 13 is provided to show the KS-16844 Rapidial circuit.
7. SWITCHBOARD CONNECTIONS
7. 01 The KS-16844 Rapidial may be connected to the various
type switchboards listed in Table C.
7 .OZ The following conversion equipment should be ordered:
eStrip terminal 10-141.
•Unit telephone key l 7B.
eBox apparatus 105B.
•Connector D-161488.
Page 13
TCI Library: www.telephonecollectors.info

POWER
CORD
115V[~
60N
-UJ
Tl
POWER
SUPPLY
Fl
24C
TERM.
STRIP
3
19.5
VAC
2
4
POWER
SUPPLY
CORD
(BR)
(BL)
(0)
(G)
NOTE
1:
5WITCllE5 59, 510,
ANO
'11
AH[
DIAL
OPERATED.
NOTE
2:
SWITCllES
513,
'14,
llf10
'15
MH.
TIM[
l<ESPON51VE.
NOTE
3.
VALUE
f
UH
Cl
SllALL Lt.
15
UF
FOR
GLDOE
i40TOfl
Al<D
2&
UF
FOR
TA
EDl50ll MOlUR.
TERM.
STRIP
3
26.
5VAC
2
4
NOTE
3
Cl
B
G
PART
OF
Kl
4
5
Cll
0.IUF
(BR)
RI
RECEPTACLE
(BK)
C2
1000
UF
+
3
PLUG
Rl2
12K
S9
RECORD
DIAL
SWITCH
NOTE!
PUI
RS
6.2K
R5
4.7K
C5
GBUF
Rl7
4.7K
S2
RECORD
C4
+
47UK
R7
3.3K
R9
IK
RAPID
I
AL
5
4
Rll
3.GK
T2
RIO
2.2K
510
ADVANCE
START
NOTE I
ca
IOOUF
3
RIB
3.3K
Sl2
INTERDIGITAL
L2
ADVANCE
SOL
2
A•
3
Sii
MOTOR
START
NOTE!
--+Z
SCAN SWITCH
(MANUAL)
(G)
Z
LIMIT
SWITCHES
(MECHANICAL)
PART OF
Kl
S7
ACCESS
LIMIT
3
S5
2
ACCESS
START
3
(W)
Sl3
RESET
NOTE 2
3
10
2
!SS
2.,
SECTION
512-115-100
SS
PULSE
MUTE
I 3
TERM.
STRIP
TELEPHONE
CORD
II
12
56
3
JOG
53
SWITCH RESET
203
2
PART
OF~___.,,,.:..._.._
____
_._
___
...
Kl
3
L----~--------l'---l
SI
DIAL
SW
I
2 3
L4
PULSE
ENABLING
SOL
Rl9
IK
L3
DIAL
RELEASE
SOL
IE4
IE4
L5
BAIL
SOL
54
PULSE
I 3
514
4 5
BL
G
y
(BL)
(G)
(Y)
~~E-2--~--0----~
y
(Y)
0
OFF
NORMAL
Sl5
7 B
w
(W)
~o-2----~---
w
(W)
el
TO
TEL
SET
Fig.
13 -
KS-
168
44
Circuit
Page
15
TCI Library: www.telephonecollectors.info