Bell System Practices 1C User manual

BEII SYSTEiA

PRACTICES

Plont Series

COINTETEPHONE

SETS

IC- AND 2C-TYPES

sEcTtoN

506-329-100

lssuel, Sepiember

1969

AT&TCoStqndord

CONTENIS

GENERAI

IDENIIFICATION

ORDERINGGUIDE

DESIGNFEATURES

OPERATING

FEATURES

INSTAITAIION .

tocATtoN

BACKBOARDSAND SECURIW

STUDS

APPlICAT!ON

COMPONENIS.

Cover Unit Assembly (lC-lype)

Door oad Foceplofe Assembly

(2C-Type)

IAA Chute .

IA Coin Chassis

Coin Recepfccle (Cash Box) . .

Instruclion Cards (lC-lype)

Instruclion Cards (2C-fype)

Number Card (TOUCH-TONE@

Only).

WIRING

OPERATION

TESISAND TROUBTE

ANATYSIS

(PREPAY

'\AODE)

OPERAIIONTESTSAND IROUBI.E

ANATYSIS

(DIAL TONE FIR,ST

MODE)

,\AAINIENANCE

Clearing Chvle

Electfical frou6les

IAA Coin Reloy

PAGE CONTENTS PAGE

I tA Coin Reloy. 31

a Coin Hopper 34

3 Return Chufe Asscmbly , , 35

_ Coin Retvrn Assembly , 35

- Ringer 35

JHondsel . . 35

9 Diot and Housing Assembly 36

9 ctllNlNc 96

" r. coNNEcfloNs 36

t0 L CONVERSTONS 36

to I. GENERAT

l.Ol This sectionincludesidentification,instal-

13 lation, operation tests and trouble anal-

r. ysis, maintenance,connections,and procedures

for converting lC- and 2C-type coin telephone

l4 setsto either the prepay (PP) or dial tone first

t5 (DTF) modeof operation.

l6 1.02 The convertible lC-type coin telephone

sets (Fig. 1) replacethe prepay-only

!o lA-type.

t7 l.o:l The convertible 2C-type eoin telephone

17 sets (Fig. 2) replacethe prepay-only

2A-type.

18 l.o4 The 1C1set can be modifiedto a 1C2by

replacing the rotary dial-equipped

P-90E400cover unit assemblywith a TOUCH-

2g TONE dial-equipped

P90E500coverunit assem-

bly. No wiring changesare necessary. No pro-

33 visionis madefor modifying a 2C1setto a 2C2.

33 l.O5 All 1C- and 2C-type coin telephonesets

22 are shippedwired for prepay servicebut

can be convertedin the field to dial tone first

33 service.Refer to Part 8.

@American Telephone and Telegtaph Company, 1969

Printcd in U.S.A. Poge I

l.o8 Overall dimensions of the 2O-type coin

telephone

set are shownin Fig. 3.

2. IDENIIFICATION

ORDERINGGUIDE

Set, Coin Telephone,

1C1*, 1C2*, 2Cl-674,

or 2C2-674

(a'1ReplaceableComponentsfor lCI (Fig. al)

. P-90E400*coverunit assembly

. P-84A852

numberplate assembly

. GBP-52

handsett

. P90D274

dial and housingassembly

. 83-52diall

o 1AA chute

1A chute

1A totalizer

. 1A coin chassis

C4A ringer

o 1AA ,coin relay

1A coin relay

P-15E717coinhopperassembly

o P-15E730

return chuteassembly

. P-21F546

coin return assembly

. 18 coin receptaclerail

(b) ReplaceableComponents

for 1C2(Fig.4)

. P-90E500*

coverunit assembly

. G3P-52

handseti

r P-90D275dial andhousing

assembly

35T3A 12-button

TOUCH-TONE dial

o 1AA chute

1A chute

1A totalizer

o 1A coin chassis

C4A ringer

for 2CI (Fig.5)

o 1AA chute

1A chute

1A totalizer

. 1A coin chassis

C4A ringer

r 1AA coin relay

1A coin relay

tss r, sEcTtoN506329.too

P-15E717coin hopperassembly

o P-15E730return chute assembly

r P-21F546

coin return assemblv

. GBP-52handsett

e 1D coin receptacle

rail

. 5A door

o P-87B052numberplate assembly

. P-90D274dial and housingassembly

85-52dialf

(d) ReplaceableComponentsfor 2C2 (Fig.5)

(1) Components for the 2C2 set, are the

sameas for 2C1with the following ex-

ceptions:

c P-90D275dial and housingassembly

. 35TgA l2-button TOUCH-TONE dial

o P-878052numberplate assembly (not re-

quired)

(el Associated Apparatus for IC-Type (order

separatelu

)

o 2A door*

! 18 or 1Ccoinreceptacle

o 1D or 1E coin receptaclecover

r 1A switch kit (alarm) (See Section

506-110-103)

c 257Aalarm switch assembly(See

Section

506-110-103)

o 3O-Type lock (cash compartment) (See

Section

506-110-103)

o 29A lock (cover unit assembly) (See

Sec-

tion 506-110-103)

* See

TableA for color selection.

i'A G13B

handset(for impairedhearing) or GBS

handset (waterproof) is availablefor usewith

the 1C/2C-type coin telephonesets but must

be ordered separately. Refer to Section

501-2ll-I02 for complete information on the

handset.

I The fingerwheel (P-21F299)

for the 85 dial is

shipped

looseand is to beinstalled in the field.

The releasinghole has been

partially plugged

(requires sharp rap on KS-16750

releaser to

pierce) to deter tampering; thus station num-

ber card should be in placebefore fingerwheel

is installed on dial. Refer to Section501-162-

100 for complete information on the finger-

wheel.

Poge 3

. 719Atool (See

Section

506-110-103)

o PIIC test cord* (Fig.6)

o Security studs

(f) AesociatedApparatus for ZC-Tgpe (order

separately)

o 18 or lC coin receptacle

o 1D or 1E coin receptaclecover

r 30-Type lock (cash compartment) (See

Section506-110-103)

. 257Aalarm switch assembly(See

Section

506-110-103)

o 29A lock (door and faceplate assembly)

(See

Section506-110-103)

. 719Atool (See

Section

506-110-103)

. P1lC test cord* (Fig. 6)

. l27A or l27B coverl (Fig. 7)

r Security studs

* Usedfor testing when access

to inside of set is

required.

t For useoverthe cointelephone

setin installa-

tions not flushmounted.

TABI.EA

COIORORDERINGGUIDE

0c-rYPEoNtY)

DESIGNFEAIURES

lC-fype

(a) All parts are contained in a high-security

steel housing; cover unit assembly has six

locking points actuated by a 719A tool and is

tss r, sEcfloN 50G329-r00

secured by a 294 lock. Cash compartment

door has four locking points actuated by a

719Atool and is securedby a 30-type

lock.

(b) Provision

is madefor use

of four security

studs. (Fig.8).

U.S.

nickels,dimes,and quarters.

(d) All sorting of coinsis doneinternally by

chute.

(e) Coin return is designedto deter stuffing.

(f) Transmission characteristics of 500-type

telephone

set.

(g) Arranged to accept 18 or 1C coin recep-

tacle. When larger lC is used,false floor

in cash compartment must be removed.

(h) lD or 1E coin receptaclecover may be

used.

(i) Electrical connections

of field replaceable

assemblies

are madeby plug and jack ar-

rangement except coin relay, ringer, and coin

chassis.

(j) Will accept

1A alarm switch kit or 2574

alarm switch.

(k) Designedfor field conversionfrom prepay

modeto dial tonefirst mode.

2C-fype

(a) All parts are contained

in a high-security

steel housing; door and faceplate assem-

bly has six locking points actuatedby a 719A

tool and is secured

by a 29A lock. Cashcom-

partment door has five locking points; three

are actuatedby a 719Atool; two are station-

ary. Door is securedby a 30-type lock.

Nofe.' Other design features are same as

listed for lC-type, except the Z0-type which

will not acceptthe 1A switch kit.

(b) Refer to Fig. 9 for location of mounting

screwand security stud holes.

OPERATINGFEATURES

(a) For prepay operation, the coin telephone

line circuit at the central office responds

to ground start control. A start circuit must

cotoR HOUSINO AND

ilOUNflNG

PIAIE

ASSEMII.Y

DOOR COVER

u1{ll

ASSE'{BlY

Black -03 taa

Chrome -44 a

Moss

Green -51 aaa

Poge 5

SEGTION

50&329-tqt

When mounting the coin telephone set,

a verticql surface must be proaided. A

tilt greater than 1-112degrees in ang

direction can cauaechute malfunction.

A aertical surface may be determined

by the following stepe:

(1) Placea spirit level vertically against the

mounting surface on which the set is to

beinstalled.

(2) When a vertical reading is obtained,the

endof the levelopposite

the point of con-

tact shall be no farther from the mounting

surface

than shownin Table B.

(3) The Ieft to right mounting axis shall also

be within 1-1i2 degrees

of true vertical.

TABTEB

AAETHOD

OF DEIERNIINING

A VERTICA]

SURFACE

Refer to Fig.8 and 9 and Tables

C and D

for security stud requirements.

aw security studs with short thread

length in the two top holes. ase bng

thread length etuds in the two bottom

holes. Top studs mwt be flush or un-

der flush with inside of backplate to

auoid interference with chute, Security

studs qre not turni.shed and must be

ordered separatelg.

APPlICAT!ON

lC-fype

(a) Refer to Table C.

Poge lO

2C-fype

(a) To fully recess

a 2C setin a wall:

(1) Ensurethat the wall will accept

the set.

(2) Refer to Fig. 3 for dimensionsof the

set.

(3) Cut a hole

in thewall

. Height-22-1/2 inches

. Width - 16-1/4

inches

o Depth-6 inches

Ensure that the lip of the faceplate

oaerlaps the wall around the hole. If

securitg studs are used, top of hole

must be enlarged approximately

112-inch and a false panel (procured

locallg) provided to close the extra

opening.

(b) Refer to Table D for all other applica-

tions.

COMPONENIS

(a) To gain access

to the coin telephoneset

mounting holes:

o Removecoaer unit assemblg (IC-tgpe)

. Open door and faceplate aesembly

(2C-tape)

o RemoveIAA chute

. Remove1A coin chaasis

CoverUnit Assembly

(lC-lype)

(a) To remove

coverunit assembly:

(1) Unlock 29A lock.

(2) Releaselocking mechanismwith ?19A

tool by turning tool 1/8-turn counter-

clockwise.

(3) Pull cover forward about 3 inches tb

gain access

to plug P1.

(4) Disconnect

plug Pl (Fig. ) by pulling

straight out as coveris carefully lifted

off.

(b)

sPtRll lEvEt

TENGTH ,rl^lxlMUfYl

AILOWABIE

DrsraNcE

out

OFP1UMB

18 inches 15/32 inch

24 inches 5/8 inch

30 inches 25132 inch

36 inches 15/16

inch

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