Bell 502-320-100 Service Manual

BELLSYSTEM PRACTICES SECTION 502-320-100
Plant Series Issue 4, November 1967

AT&TCo Standard

HAND TELEPHONE SET--220A AND 1220A

IDENTIFICATION, INSTALLATION, MAINTENANCE, AND CONNECTIONS

1. GENERAL • Dial, 80B2A (1220A)

1.01 This section is reissued to: • Form, E5002A (number card)

• Add piece part information for dial face • Lamp, 53A
cards (1220A only)

• Add piece part number for dial hub cover
(220A only) • Network, 854A (220A)

• Add ivory (-50) and red (-53) to color list
(Table A) • Network, 861A (1220A)

• Add information on 53A dial lamp • P-22F5* Card (1220A only)

• Lamp, 53B

• Show LB1 receiver unit replaces LA1 • P-25E803, Number Card Retainer

e Remove reference to 2160A dial lamp •P-28E320, Light Seal

transformer

Since this reissue covers a general revision, arrows
ordinarily used to indicate changes have been

omitted. • Receiver Unit, LA1 (early models)

2. IDENTIFICATION • Receiver Unit, LB1 (current models)

2.01 The 220A and 1220A hand telephone sets

(Fig. 1 and 2) are dial-in-handset type

telephone sets. These sets are complete telephones
except for the ringer and line switch which are (b) Associated ApparatusorEquipment (order

housed in a telephone base. separately)

ORDERING GUIDE • ACI-* Telephone Base

Set, Telephone, Hand 220A-*

Set, Telephone, Hand 1220A-*

(a) Replaceable Components transformers, see section on transformers)

• P-88E0* Cover (220A only)

• Transmitter Unit, T1

• ADI-* Telephone Base

02012A Transformer (for other suitable

• Cord, Handset H4DB-*

• Cord, Handset H5AA-*

• Dial, 10A (220A) identification)

© American Telephone and Telegraph Company, 1967

Printed in U.S.A. Page I

• Cord, Handset H4DB

• Cord, Handset H5AA (required for tip party

SECTION 502o320-100

(c) Customer Instruction Booklet

• GN-2426(220A)

• GN-2433 (1220A)

* Refer to Table A for color selection.

o ®

o •

@ •

• •

P - 8 8EO -.X-- _{ CARD_

COVER ................

IOA

FLOATING RECALL SWIT
FINGERSTOP

80B2A

/

RECALL * • • t, _ 2t

SWITCH _ _ SEE TABLE A • • • Q, • L

! :: 1::

-_ADDCOLORSUFEIX

Fig. 1--220A Hand Telephone Set

Page 2

".:::2: '\

g Ib ! I o o _/

...... i

' Fig. 2--1220A Hand Telephone Set

COLOR

ISS 4, SECTION 502-320-100

TABLE A

COLOR SELECTION AND PIECE PART INFORMATION*

HAND TELEPHONE SET,

DIAL HUB COVERt AND DIAL FACE CARD

HANDSET CORD (1220A ONLY)

STANDARD COLOR SUFFIX COLOR PIECE PART NO

Black --03 Slate P-22F570

Cinnamon

Ivory --50 Brown P-22F571

Dark

Green --51 Jade Gray P-22F5..72

Red --53 Burgundy P-22F573

Yellow --56 Gold 'P-22F574

White --58 Slate P-22F570

Rose Pink --59 Rose P-22F575

Lt. Beige --60 Sandalwood P-22F576

Lt. Gray --61 Slate P-22F570

Aqua Blue --62 Peacock Blue P-22F577

Turquoise --64 Turquoise Green P-22F578

* Refer to Section 500-120-100 for promoted colors

t 220A hand telephone set only

3. INSTALLATION (b) Installing

(a) Planning (1) Connect the 220A or 1220A hand telephone

set to a telephoile base by plugging the

5-1/2 foot H4DB cord (Fig. 3) into the jacks

• SaCety for yourself, customer, and maintenance on each component.
1__rsonnel.

(2) If tip party identification is required, an

• Location--desk, table, wall, etc. H5AA cord must be used. Check under

number card window to see that screw used
in tip party identification switch is tightened

• Space requirements, down (early models, Fig. 4). The absence of
a screw or screw hole in the identification

• Distance between associated equipment or

switch position (Fig. 5) indicates that the
connection has been made in the network at

apparatus, the factory. The H4DB and H5AA handset

cords are also available in 9- and 13-foot

• General appearance of installation, lengths.

Page 3

SECTION 502-320-100

for other than tip party identification _.,,

service, disconnect the (BL) ringer lead

from B terminal on the terminal board

If it is necessary to use an H5AA cord
in the base, insulate and store.

i

(3) The 220A and 1220A hand telephone set

is factory equipped with a 53B dial lamp;

power for lamp is supplied by a 2012A RECALL
transformer. DO NOT USE 2012B cup CONTACTS

TRA NSFORMER.

TRANSMITTER SWITCH

with increased cord lengths. In
installations where the illumination

is considered inadequate, the 53B

The illumination of the dial diminishes

lamp may be replaced by a 53A,

provided the lamp power is supplied

by a 2012A transformer and the
combined lengths of mounting and

handset cords are not less than 14-1/2 _,:
feet. Refer to Fig. 6 for dial lamp
replacement. _:

IOA DIAL

Page 4

P

I

'_o i__=_I/TELEPHONE

[, l.,!,*f BASE PLUG

- _$, [SQUARE GROMMET) ]o RECEIVER

"x HAND TELEPHONE

SET PLUG
(TAPERED GROMMET)

Fig. 3--H4DB Cord Fig. 4--854A Network

TIP PARTY

'? ,TCH

(ON EARLY

MC3DELS

DIAL LIGHT