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Bell KS-19245 List 1 User manual

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TCI Library www.telephonecollectors.info
BELL
SYSTEM
PRACTICE
AT
&TCo
Standard
SECTION
514-155-100
Issue 3,
July
1977
KS-19245,
LISTS
l
AND
13
TELEPHONE ANSWERING
SETS
CONTENTS
PAGE
CONTENTS
PAGE
1.
GENERAL
2.
IDENTIFICATION
Design
Features
Optional
Feature
s
Ordering
Guide
3.
COMPONENTS
AND
ACCESSORIES
DESCRIPTION
KS-
19245
,
Li
st
Telephone
Answering
Set
KS-19245,
List
13
Telepho
ne
Ans
wering
Set
Optional
Equipment
4.
OPERATION
Announcement
Record
Announcement
Check (Using
Hand
set)
Announcement
Check (Using
Speaker
)
Automatic
Answer
and
Record
Automat
ic
Answer
Only
Forward
or
Rewind
Erase
Messag
e
Message
Playback (U
sing
Handset
)
Message
Playback (Using
Speaker
)
14
2
Message
Indicator Dial
14
2 Tur
ning
Telephone
Answering
Set Off
3 14
4
Cart
ri
dge
Installation
14
4
Cartridge
Removal
14
ACCESSORIES
14
4 Foot Switch,
KS
-
19245
,
List
8
14
4
Earphone
, KS-19245,
List
9 15
Backspace Unit, KS-19245,
List
12
15
5
5.
OPTIONS 16
5 Voice Control Disable 16
8
9 Calling
Party
Control 16
Speak
-
up
(Ta
lk-down
) Tone Disable 17
9 Ring Delay
Option
17
9
Message
Recording
Capacity
Option 17
9
Announcement
Recording Time
Option
19
10
11 ·
6.
INSTALLATION
21
11
Location 21
14
Power
21
NOTICE
Not for use or disclosure outside the
Bell
System except under w
ri
tten agreement
Printed
in
U.S.A
Page
1
TCI Library www.telephonecollectors.info
SECTION
5
14
-155-100
CONTENTS
PAGE
Connections, Line
22
Te
st
at
Time of Installation
22
1.
GE
NERAL
1.01 This section covers identification, installation,
operation, and connection information
on
the
KS-19245,
List 1
(M
D) (Fig.
1)
and List
13
(Fig.
2)
telephone answering set.
1.02
This section
is
reissued
to:
• Show the
KS-19245,
List 1
(MD)
• Add the
KS-19245,
List
13
-
r,
Since this reissue covers a general revision,
ar
rows
ordinarily used to indicate changes have been
omitted.
1
.03
This section contains information formerly
contained
in
Sections
514-155-101
and
514-155-200.
2.
IDENTIFICATION
2
.0
1 The
KS-19245,
Lists 1 and
13
telephone
answering sets (Fig. 1 and
2)
are automatic
answering sets for either answer and record, or
answer only service.
•T
his answering
set
is used with individual
lines,
PBX
extension lines, 2-party selective
flat or message
rate
lines, and key telephone
systems
•Use
of
the
telephone answering
set
in
installations
that
have Dial Long Lines
FOOTSWITCH -
BACKSPACE~Q
RECEPTACLE-----
EARPHONE JACK
COVER RETAINING SCREWS
(4)
FUNCTION SELE
CTO
R
Fi
g.
1-KS-19245
, List 1 Tele
phone
Answering Set
Page
2
TCI Library www.telephonecollectors.info
(DLL)
circuits
is
nonstandard
and
not
recommended. The de calling
party
control
features of the
set
are
n
ot
co
m
patib
le wi
th
a DLL circuit sin
ce
DLL circuits
do
not
regenerate disconn
ect
signals towards the
subscriber.
•T
he KS
-1
9245,
Li
st
13
telephone answering
set
replaces
the
KS-19245,
List
1
set
and
provides the
sa
me operational
features
plus
ca
ll
ing
party
contr
ol
(CPC) options, ring
delay, and
an
input jack
fo
r modul
ar
mounting
cord in
sta
ll
ations.
Note: Li
st
13
set
is recommended
at
locations
where 3
0H
z ringing cu
rr
ent is used.
2.02
Design
Features:
• Announ
ce
ment recording on magnetic tape
with capacity of 3 minutes
• Adjustmentfor limiting announcement recording
interval
RECE
PTACLE,
FOOTSW
ITCH ·
BACKSPACE,
COVER
RETA
INING
SCR
E
WS
(4)
ISS
3, SECTION
514-155-100
• Handset, for recording announcements,
and
for
checking recorded announcements
or
playback of reco
rd
ed incoming messages
•
Earphone
jack,
fo
r use
with
KS-19245, L
ist
9
earphon
e,
fo
r playback of recorded incoming
messages
• Tape
cartri
dge, for recording of incoming
messages, with maximum recording
ti
me of
2
hours
•
Ad
j
ust
ment for incoming message recording
time for 1 or 2
hours
• Voice control
operation
during
incoming
message recording
•
DC
calling
pa
r
ty
co
n
tro
l du
ri
ng
automatic
answer cycle
• Answer only operation
o
Foot
switch
recepta
cle to be used
with
KS-19245,
List
8 foot switch for oper
at
ion
SPEAKER
CONTROL
MESSAG E
INOI
CATOR
01
AL
Fig. 2-
KS
-
19245
,
List
13
Telephone
Answering
Set
Pa~e
3
TCI Library www.telephonecollectors.info
SECTION
514-1
55
-100
during
playback
of
recorded
incoming
messages
• Message indicator dial to show position of
message tape
• Calling partycontrol options provide selection
of interrupt time from
0.5
to
450
milliseconds
(List
13
only)
• Ring delay. Answer on
first
ring or
after
approximately
12
seconds of ringing (List
13
only)
• Modular connections (List
13
only)
• Housed in a metal case. The cover has a
light olive gray textured finish and the
front panel has a blue-gray enamel finish.
Di
mensions of the Lists 1 and
13
sets are
shown
on
Fig.
1.
Weight of List 1
set
is
31
pounds and L
ist
13
set
is
24
pound
s.
2.03
Op
tional
Fea
t
ure
s:
•
Voice
Control Disable
• Calling
Party
Control (CPC)
• Speak-up (Talk-down)
To
ne Disable
• Ring Delay (List
13
set only)
Note:
Options are implemented
by
so
ldering
or removing a
strap
in the L
ist
1
set
or
repositioning a jumper plug in the L
ist
13
set.
• Message Recording Capacity
•Announcement Recording Time.
2.04
Ordering
'G
ui
de:
(a) KS-19245,
List
13
(D4BU mounting
co
rd
must be ordered separately).
(b) The
KS-19245,
List
13
replaceable components
may be ordered as follows:
•
A3
Power Supply, KS-
19245,
List
19
•
A4
Amplifier Board,
KS-19245,
List
15
Page 4
•
A5
Deck Control Board,
KS-19245,
Li
st
16
•
A6
Logic Board, KS-
192
4
5,
List 17
•
A8
Tape Deck,
KS-19245,
List
21
• Cartridge,
KS-19245,
List
6.
Not
e: The List
13
set
comes equipped with
power cord.
(c) The KS-1
9245,
L
ist
1 replaceable components
may be ordered as follows:
• Recorder (Announcement), KS-
19245,
L
ist
2
• Recorder (Message),
KS-19245,
L
ist
3
• Amplifier,
KS-19245,
List 4
• Amplifier,
KS-19245,
List 5
• Cartridge, KS-1
9245,
List 6
•Cord, Power, KS
-1
9245,
List 1
1.
(3)
The following optional equipment may be
ordered separately as required:
• Earphone,
KS-19245,
List 9
• Tape Cartridge, KS-
19245,
L
ist
6
• Foot Switch, K
S-19245,
L
ist
8
•B
ackspace Unit,
KS
-
19245,
List
12
• Service Manual, K
S-19245,
List
18
(List
13
only).
3. COMPONENTS AND
ACCESSORIES
DESCRIPTION
3.01
KS-19
24
5,
List
1
Te
lephone
Answering
Set:
(a)
KS-19245,
List 2 Recorder (Fig. 3 and
4)
is
the
announcement recording mechanism. It
provides a maximum recording capacity of 3
minutes, and incorporates a variable cycle feature
th
at
limits the reproduce cycle to the duration
ofthe recorded announcement only. This recorder
is equipped with 1/4-inch wide plastic base
magnetic recording tape installed
on
special
reels. The tape and reels form an integral pa
rt
TCI Library www.telephonecollectors.info
of
the
recording mechanism and
cannot
be
changed
by
the
customer since replacement of
either
requires
partial
disassembly
of
the
mechanism. Facilities are provided for limiting
the
maximum
recording
time
to
15-second
increments (from
15
seconds to
90
seconds) or
30
-second increments (from
90
seconds to
180
seconds). This is done
by
adjusting
the
variable
limit switch assembly. The adjustment may
only be made
by
the installer.
(b) KS-19245, List 3 Recorder (Fig. 5 and
6)
is
the
incoming message recording mechanism.
It
provides a maximum recording capacity of 2
hours on 1/4-inch wide plastic base magnetic
recording tape. This tape is contained in the
KS-19245,
List
6
cartridge
which
may
be
conveniently changed
by
the customer. Facilities
are provided for limiting
the
message recording
time to 1
or
2 hours. This is done by adjusting
the limitswitchactuator (Fig.
6).
The adjustment
may only be made
by
the installer.
(c)
KS-19245, List 4 Amplifier (Fig. 7) is a
printed circuit wiring board transistor amplifier
for recording and reproducing. The amplifier
incorporates
an
automatic volume control feature.
It
also contains the
1400
-cycle oscillator and notch
rejection filter.
(d) KS-19245, List 5 Amplifier (Fig. 8) is a
printed circuit wiring board.
It
contains
the voice-operated circuit and the calling
part
y
control circuit.
(e) KS-
19245,
List 6 Cartridge (Fig.
9)
provides
a 1/4-inch wide plasticbase magnetic recording
tape with a capacity for 2 hours of incoming
message recording time.
(f)
KS-19245,
List
11
Power Cord is
an
8-foot
light
olive
graycolored cord.
It
is
plug-connected
to the answering
set
and provides for connection
to a 3-wire, 110-volt ac outlet.
3.
02
KS
-
19245,
Li
st
13
Te
l
ep
hone
Answering
Set:
(a)
KS-19245,
List
21
Tape Deck,
A8,
(Fig.
10
and 11) is the combined announcement and
message recording mechanism. The announcement
record mechanism (Fig.
10)
provides a maximum
recording capacity of 3 minutes and incorporates
a variable cycle feature
that
limits the reproduce
ISS
3, SE
CTI
ON
51
4-155-100
cycle to the duration of the recorded announcement
only. This recorder is equipped with 1/4-inch
wide plasticbase magnetic recording tape installed
on special reels. The tape and reels form an
integral
part
of the recording mechanism and
cannot
be changed by
the
customer since
replacementof either requires partial disassembly
of
the mechanism. Facilities
are
provided for
limiting
the
maximum recording time to 15-second
increments (from
15
seconds to
90
seconds) or
30-second increments (from
90
seconds to
180
seconds). This is done by adjusting the timer
cap. The adjustment may only be made
by
the
installer.
The
incoming message recording
mechanism (Fig.
11)
provides a maximum recording
capacity of 2 hours on 1/4-inch wide plastic base
magnetic recording tape. This tape is contained
in
the
KS-19245,
List 6 cartridge which may be
conveniently changed
by
the customer. Facilities
are provided for limiting the message recording
time to 1
or
2 hours. This is done
by
adjusting
the limit switch actuator (Fig.
10).
The adjustment
may only be made
by
the installer.
(b) KS-19245, List
19
Power Supply,
A3,
(Fig.
12)
is a combination subchassis consisting of a
power transformer, and a printed circuit wiring
board containing
the
regulated power supply
circuitry, and line connection terminals.
(c) KS-19245,
List
15 Amplifier Board, A4,
(Fig.
13)
is a printed circuit wiring board
containing the record/playback amplifier, automatic
gain control, tone generator, and relay driver
circuitry.
(d)
KS-19245,
List
16
Deck Control Board,
A5,
(Fig.
14)
is a printed circuit wiring board
containing
the
necessary control circuitry for
operating
the
tape
recording
and
playback
mechanism.
(e) KS-
19245,
List 17 Logic Board,
A6,
(Fig.
15
)
is a printed circuit wiring board containing
the
line seizure, ring-up circuitry, and installer
options.
3.03
Optional
Equipme
nt:
(a) KS-19245,
List
8
Foot
Switch (Fig. 16)
provides for foot control operation during
playback of the recorded incoming messages.
The foot switch pedal has two active positions,
P
age
5
TCI Library www.telephonecollectors.info
SECTION
5
14-155
-
100
SUPPLY AND TAKE-
UP
SPOOL
Pag
e 6
PRESSURE
PAD
REWIND
SHAFT
TAPE
GUIDES
CAPSTAN
TAPE
DECK
COVER
REMOVED
FOR
CLARITY
Fig. 3-
KS
-
19245
,
Li
st 2 Recorder (Reel Side)
FORWARD
SOLENOID
FORWARD
LIMIT
SW
I
TCH
==---T
I
MER
SPRING
Fig
. 4-
KS
-
19245
,
Li
st 2 Recorder (Motor Side)
TCI Library www.telephonecollectors.info
CARTRIDGE
INTERLOCK
SWITCH------
CARTRIDGE
HUB
DRIVE
MOTOR
ISS
3,
SECTION
514-155-100
•
-------TAKE
-
UP
Fig.
5-KS-19245
,
List
3
Rec
order (Reel Side)
MESSAGE
I
NDICATOR
DI
AL
___
__....
Fig
. 6
-KS-
19245
,
List
3 Recorder (Motor Side)
HUB
ACTUATOR
LOCKING
SCREW
LI
MIT
SW
ITCH
ACTUATOR
Page
7
TCI Library www.telephonecollectors.info
SECTION
514-155-100
Fig
.
7-KS-19245
,
List
4 Amplifier
GR
EE
N
DO
T
RED
DOT
BLUE
DOT
Fig.
8-KS-19245
,
Li
st 5 Amplifier
one for control of playback and the other for
rewind.
(b)
KS-19245,
List 9 Earphone (Fig.
17)
enables
listener to play back the recorded incoming
messages; for example, during transcribing. The
plastic holder on the ear piece may be of eit
her
version as shown in Fig.
17.
(c)
The
KS-19245, L
ist
12 Backspace
Unit
(Fig.
18),
allows automatic back
spa
cing of
the message tape a few words each time
the
Page 8
playback activated control on
the
foot switch
pedal is released. The user can
co
ntrol
the
amou
nt
of backspace (up to approximately
12
words) by
adjus
ting
the
backspace control.
Automatic backspacing
may
be disabled by
turning
the
backspace control to its zero position.
4. OPERATION
4.01 Refer to Fig. 1
or
2.
TCI Library www.telephonecollectors.info
Fig.
9-KS-19245,
List
6
Cartridge
Caution:
Damage
to
the
message
tape
and
its
mechanism
w
ill
result
if
the
message
tape
end
is
not
properl
y
secured
in
the
sna
p
retain
er
of
the
answering
set
.
4.02
Announcement
Record:
(1)
Set
function selector
to
ANN-REC.
(2) Lift handset, depress and hold handset button.
Commence dictating announcement when
IN-USE lamp lights.
N
ote
: As new announcement
is
recorded,
old announcement will be erased. Release
handsetbutton immediately
after
announcement
is complete.
If
announcement is too long,
IN-
USE
lamp
will
extinguish andthe announcement
must
then
be shortened
and
rerecorded. (
For
optional announcement length, see
5.06
.)
4.
03
Announcement
Ch
ec
k
(Us
ing
Handset):
(1)
Set
function selector to ANN-CHECK.
(2) Lifthandset, depress
and
hold handset button.
ISS
3,
SECTION
514-155-100
Note:
Announcement will be played repeatedly
as
long
as
a handset button
is
held depressed.
4.
04
Announcem
e
nt
Check
(Using
Speaker):
(1)
Set
function selection to ANN-CHECK.
(2)
Pu
ll
out
SPEAKER
control knob.
(3) Depress and hold
handset
button (List 1
only).
(4) Ro
tate
SPEAKER control knob to
adjust
volume.
Note:
Announcement will be played back
repeatedly
as
long
as
handset button is held
depressed.
4.
05
Automatic
Answer
and
Record:
(a)
After
announcement has been recorded and
checked,
set
is ready to be placed in automatic
answer.
(1)
Set
function selector to ANS-REC:
(a) AUTO-ANS lamp lights.
(b) Ringing
current
starts
automatic answer
cycle.
(c)
IN-USE lamp lights
and
AUTO-ANS
lamp extinguishes, indicating incoming
call.
(d) A de termination which
trips
ringing is
automatically placed across line.
(e) Recorded announcement is reproduced
on line.
(f)
At
end of announcement, a single
short
beep tone will be
transmitted
to calling
par
ty
as
an indication for calling
party
to
start
talking.
(g) Message
is
recorded on message tape.
Note:
Connection of telephone answering
set
to line is under control of a voice operated
circuit and a calling
party
control circuit.
Page
9
TCI Library www.telephonecollectors.info
SECTION
514-155-100
LIMIT
SWITCH
ACTUATOR
''9"
FORWARD
LIMIT
SWITCH
PRESSURE
ROLLER
CAPSTAN
"A"
DRIVE
SOLENOID
HOUSED
SUPPLY a
TAKE UP SPOOLS
Fig
. 1O-
KS
-19245,
List
21
Recorder
(Announcement Side)
(h) The
vo
i
ce
operated circuit will allow
automatic recording of speech from line
so
long as speech of proper level is present
on line, up to the capacity of tape.
If
for
a period of approximately 4 seconds the
level of speech has been lower
than
required
for satisfactory recording, speak-up (talk-down)
tone is transmitted to calling party as signal
to speak louder. Tone is removed when
speech level
is
raised.
If
speech level
is
not raised within approximately 8 seconds,
the
set
will automatically disconnect.
(i) Installation where the central office
provides a momentary interruption of
centr
al
office battery accompanying calling
party
hang-up, the calling party control
circuit will disconnect
the
set from the line.
(j) L
ist
13
set
has Calling Party Control
(C
P
C)
in
te
r
rupt
time options
wh
ich are
Page 10
selected and
set
depending on the type of
central office.
(k) Amount of tape recorded is indicated
by
message indicator dial.
4.
06
A
utomatic
Answe
r
Onl
y:
(a) After announcement has been recorded and
checked, setis ready to
be
placed in automatic
answer.·
(1) Set function selector to
ANS-ONLY:
(a)
AU
TO-ANS lamp lights.
(b)
Ri
ngingcurrent
starts
automatic answer
cycle.