Bell 701B User manual

r

BELL

SYSTEM

PRACTICES

S

ta

ti

on

Operat

ions

Ma

n

ual

S

tation

Sets

SECTION C38.

670

.

40

Issue 4,

February

, 1963

AT&TCo S

tandard

TELEPHONE

SETS-

7

01

B

CONNECTIONS

1.

00

GENERAL

1.01

This

section is

reissued

to:

•

Add

schematics

for

4-

and

8-party

semi-

selective service.

•

Add

"Read"

note

to

Fig.

7.

•

Add

reference

to 1635A

inductor

.

• Add long line

circuit

connections

to

Tab

le

B.

1.

02

Due to

extensive

changes,

marginal

arrows

have

been

omitted

.

1.03

The

following figures

and

tables

give

the

connec

tion

information

for

the

701B tele-

phone

set

for

the

conditions

shown

.

Fig.

Table

•

Without

Ringer,

or

Portable

1 A

2

•

With

E-Type

Rin

g

er

3 B

• 4-

Party

Selec

t

ive

and

8-

Party

Semiselec

tive

Service

(With

426A

cold

c

athode

tube)

4 C

•

Severe

Indu

ction (425A cold

cathode

tub

e) 5 D

•

With

F1A

Ringer

E

•

Wired

for 1A1 Key Tele- 6

phone S

ys

tem

•

Wir

ed for 3A

Sp

eake

rph

one 7 F

1.04

To

determine

which

type

of

identifying

ground

is

required

on

2-party

tip

stations,

refer

to section

entitled

Station

Set

s, Common

Battery

Selection

for

General

Use.

1.05

For

tip-party

identification when no

ringer

is used, a 1610A

or

1635A

inductor

is in-

stalled

in

the

telephone set.

For

information

on

installation

of

the

inductor

see section

entitled

Telephone

Sets

701

and

711,

Installation.

1.

06

To

convert

the

701B

telephone

set

from

dial

to

manual,

move

two

spade-tipped

leads

as

follows:

•

S-

W

from

terminal

F of

network

to

termi-

nal

RR.

• W dial lead

from

terminal

GN of

network

to

terminal

Rl.

The

dial

remain

s on

the

set.

The

dial

light

transformer

can

be

dam-

aged

by

lightning

if

a

sufficient

differ-

ence

in

ground

potential

occurs

be-

tween

the

telephone

plant

and

the

power

system

.

Be

sure

that

the

tele-

phone

and

power

grounds

are

bonded

in

accordance

with

the

section

entitled

Protector

and

Signaling

Grounds.

©

Am

e

ri

c

an

Telephone

and

Telegr

ap

h Comp

any,

19(;3

P

rin

ted in

U.S.

A. Page 1

l

SECTION

C38.670.40

INSIDE

WIRING

CONN

BLOCK

OR

JACK

MTG

TERM

.

CORD*

STRIPS

SWITCH

ASSEMBLY

GRD (Y ) y

(Y)

(8

L)

4

(S

- Rl

DI

AL

LIG

HT

{

T

RAN

S 8

(8K)

(S

- 8

Ll

TI

P (G) G

(G

)

Ll

(S

-G)

RING

(R) R

(R)

L2

(S

-Y)

'

(W)

g

(S)

No

te

I:

Dott

ed lines

ind

ic

at

e connecti

ons

for ma

nu

al

~

e

r

v

i

ce

.

The dial remains on

th

e set .

Note 2: Gro

und

may be

omitt

ed

if

not

req

uir

ed f

or

se

1·vi

ce;

not nece

ss

a

ry

for

prote

c

tion

of

dial lig

ht

tran

s

form

e

r.

For po

rt

able ins

tall

a

ti

ons

use

D4BA

or

D4BE

cord, omit

tin

g

BL

a

nd

W co

nd

uc

tor

s.

CL

OSE FOR

NI

G

HT

LIG

HT

e

d

k

b c

:Ja

g

DIAL

BA

(G

)

(S-

8R

)

(S

- R)

(W)

(S

- 8

K)

NETWORK

495A

GN

NOTE

I

~

Rl

HAND

SET

G3AR

Fig

. 1

-701

B Telephone

Set

without Ringer, or Portable

TABLE

A

CONNECTIONS

FOR

TELEPHONE

SET

WITHOUT RINGER

Individual Ring Tip

Party

Wire or l e

ad

or Tip

with

!d

e

nt

Grd

Bri

dg

ed

Pa

rty

Party

1000

[)

2500

!1

Line

\\'ir

e Ring R R R H R R

at

Conn

Tip

G G G G G G

Block Grd y y y y y y

Tr

ansfo

rmer

Lead

s I y y y y y

at

Conn Block 2 B B B B B

R R R R G G

G G G G H R

Mo

un

ting Cord y y y y y y

at

Co

nn

Bl

ock

BL

B B B B B

\V

R R H G G

BK B B B B B

R L2 L2

L2

L2 L2

G L l

Ll

Mo

untin

g Cord y 3 3 3 3 3

at

Se

t

BL

~

4 4 4 4

\\'

D D D D D

BK

4 4 4 4 4

RK

3 3

I

nductor

H B

TAPE

Le

ad

s

at

Set

s B B

Page 2

1000

fl

1500.Cl

BK

R

Fig. 2 - Schematic

for

1610A

or

1635A

Inductor

s

INSIDE

WIRING

EIA

RINGER

GRD

(Y)

2

DIAL

{J

LIGHT~

TRANS

TI

P

(G)

6

RING (R)

INDIVIDU

AL

GRD

DIAL

LIGHT

TRANS

TIP

RING

TIP

OR

RING

PART

Y(SEE

TABI

GRD

(Y)

2

DIAL{~

L

IG

HT

4 (BK )

TRANS

IOOOfi

7

RING ( R) 5

TIP

(G)

TIP

PARTY WITH 1000-

GRD

(Y)

2

DI

AL

{

LIGHT

TRANS

RING (R I

TIP

(G)

...

--

---

--

----

--

---

MTG

CORD TERM.

STRIPS

2

SWITCH ASSEMBLY

(S

- G)

6/

C

LOSE

FOR

N I

GHT

LIGHT

( O- W)

( y )

3~

DIAL

LAMP

( B

L)

( B

K)

'\,4

(S-R

) J

"

(5-

B

L)

K

(G ) L l (S- G)

r--

e (

-a

(R )

L2

(S

-

Y)

~~d

(W) D (S)

•R B

RIDGED

(Y)

3 (

(S- Y) •

(S)

'T

SEE

(5

- R

NOTE

I

S

-W

)

S- BRl

f

(S

(BL)

4

-BK

)

(BK

) / - g

(G

)

Ll

(S

- G)

(R) L 2 (S-

Y)

r--

<W ) D

(S

)

.E

Bl

(

Y)

3

}SEE

~NOTE

I

(

BL

) B

(NETWORK)

(G

l L l (

S-

G)

(R)

L2

(S

Y)

1--

(W) D (S )

·

OH

M I

DENT

GRD

(Yi

3 }

SEE

~

N

OT

E

I

(

BL)

B

(NE

T W

ORK

)

(

G)

Ll

(S - G)

(

R)

L2

(S - Y )

r--

(

W)

D (

S)

DIAL

SA NETWORK

495A

(W)

NOTE 2

Rj1

HAND

SET

G3AR

TABLE

B

ISS

4, SECTION C38.

670.40

N

ote

I:

To di

al

lamp c

ir

c

ui

t

as

sh

own

fo

r individ

ua

l or b

rid

ged.

N

ot

e 2: D

otted

lines

ind

ica

te

co

n-

nec

ti

ons f

or

ma

n

ua

l

se

rvice.

The

dial rema

in

s on the

set.

N

ot

e 3: G

roun

d m

ay

be om

it

ted

if

no

t req

uir

ed for

ser

vice not neces-

s

ar

y

for

pr

ote

ct

ion of

di

al lig

ht

transf

o

rm

er.

Fig.

3-701

B Telephone

Set

With

ElA

Ringer

LINE

AND

RINGER

CONNECTIONS WITH

ElA

RINGER

Tip

Part

y with ldent Grd

lnd

i- R

inger

R

evers

al

When

W

ire

or

le

ad

vi

dual

Ring Tip

No

r

mal

Con

ne

cted

to

01

Party

Conn

e

ction

s

long

Line Ckt

Bridged

1000

11

2650

!!

1000

0 I

2650

0

Line

l H

ing

H 5 5 5 5 5 5 5

at

I T

ip

G 6 6 6 6 6 6 6

Ri

nger

j Grd y 2 2 2 2 2 2 2

R 7 7 7 7 l l 2

S-H 1 1 l 1 2 7 1

Ring

er

BK

6 2 2 2 I 1 7

s 1 1 1 1 7 2 I

Capacitor

w 7 7 7 7 7 7 7

in

Ringer

y 5 5 6 3 3 3 3

Trans

fonner

1 2 2 2 2 2 2 2

Lead

s 2 4 4 4 4 4 4 4

I H 5 5 6 6 6 6 6

Moun

ting

G 6 6 5 5 5 5 5

GorJ y 2 2 2 2 2 2 2

at

BL

4 4 4 1 1 1 1

Ringer

w 3 3 3 3 3 3 3

BK

4 4 4 4 4 4 4

H L2

L2

L2 L2 L2 L2 L2

Moun

ting

G L1 L1

Ll

L1

Ll

Co

rd y 3 3 3 3 3 3 3

at

BL

4 4 4 B B B

ll

Set* \V D D D D D D D

Bl< 4 <I 4 4 4 4 4

Note:

Use

no

rm

al co

nn

ec

tio

ns on t ip-

pa

rt

y ide

nti

fyin

g gro

un

d s

tat

ions.

If

be

ll

ta

ps on

stations

conn

ecte

d

to

long

li

ne

e

qu

i

pm

e

nt,

use r in

g-e

r reversal column in Table B

to

re

tain

t

ip-par

ty gro

und

id

ent

ifi

ca

tion.

'''

Set

wir

ed

at

fa

ct

or

y

for

ind

iv

id

u

al

or

b

ri

dged,

rin

g-, a

nd

tip-par

ty

se

rvice.

Page 3

l

I

EIA

MTG

T

ERMINAL

SWITCH

I

NSIDE

WIRING

RINGER

CORD

STRIP

ASSEM

B

LY

(S-G)

NIGHT

LIGHT

SWITCH

(BL)

(

BK)

(Y)

d

RING IR)

TIP

(G)

TIP

OR

RING

NEGA

TIVE

STATION

(S

-

G)

NIGHT

LIGHT

SWITCH

(BLI

4

,-----------~(B~K~l

~

(Y)

(W )

RING

(R)

(S

-

Y)

TIP

(G) 6

IG)

(S-

Gl

SEE T

ABLED

(Sl

0

TIP

OR RING

POSITIVE

STAT

ION

No

te : D

ot

ted

li

nes indi

cat

e connec

ti

ons for

manua

l

se

rvi

ce.

Dial re

main

s in se

t.

Remove W lead f rom D

punching

in

set

and

connect

to

BK

tube

l

ead

using· D-161488 connec

tor

.

Fig.

5-701

B Telephone

Set

with

425A

Cold Catho

de

Tube

(Severe

Inductive

Noise)

e

g

ISS

4, SECTION C38.

670.40

DIAL

N

ET

W

ORK

495A

(S -

Wl

IBLl

(S-Rl

(W)

1

(

W)

NOTE I

~

'

~-o--

----~~--------~~------~RI

loca

-

tion

(S-BKl

TABLE

D

4-PA

RT

Y

AND

8-PARTY

SE

M

ISELECTIVE

SERVICE

W

ire

or

le

od

Line I

Tip

(;

I

Grd

Y

R itl

g"t

•r

Co

il

L

ead~

C

apac

itor

Leads

Mo

untin

g-

Co

rd

:lO

l:lA or

K

S-

16 184

T

ran

~

l

o u

n

ting

Cord

425A

Tube

Leadi'

H

S.

l{

s

BK

y

R

G

II

'

y

RL

BK

G

H

y

BL

BJ.:

H

y

G

Ne

gativ

e

Stat

ions

1

and

5 2

and

6

1"'

L1 L1

1,1

Ll

L2 L2

HAND

SET

G3AR

Po

sitive

Stations

3

and

7 4

and

a

L 1

1.1

L2

1.

2 L2

1, 1

1.1

Remove W le

ad

from

D

punching

in

se

t

and

connect

to

BK

tub

e le

ad

using

D-161488 conn

ecto

r.

Page 5

l

SECTION C38.670.40

c

0

·::

c

u

0

......

~

<1)

E-i

,..

Q)

bo

.5

~

'""

~

Q)

E-i

+'

<1)

w.

Wire

or

Lead

Ring

R

Line

Tip

G

Grd

y

R

S-R

Ringer

Coil

BK

s

G

BL

Network

A R

Strap

s B G

1

Dial Light

Trans

2

R

G

y

Mounting

Cord

BL

w

BK

R

G

y

Mounting

Co

rd

*

BL

w

BK

TABLE E

CONNECTIONS WITH

F1

A RINGER

Tip

Party

with

Identifying

Ground

lndi-

Ringer

Reversal

vidual

Ring

Tip

Normal

Connections

When

Connected

to

Party Party

or

Long Line

Circuit

Bridged

10000

26500

10000

2650

0

6 6 1 1 1 1 1

4 1 6 5 5 5 5

1 4 4 4 4 4 4

7 7 7 7 2 2 4

2 2 2 2 4 7 2

4 4 4 4 2 2 7

2 2 2 2 7 4 2

4 4 4 4 4 4 4

7 7 7 7 7 7 7

6 6 6 6 6 6 6

1 4 4 4 4 4 4

3 3 3 3 3 3 3

6 6 1 5 5 5 5

4 1 6 1 1 1 1

1 4 4 4 4 4 4

3 3 3 2 2 2 2

5 5 5 6 6 6 6

3 3 3 3 3 3 3

L2 L2

L2 L2 L2

L1 L1 L1 L1 L1 L1 L1

3 3 3 3 3 3 3

4 4 4 B B B B

D D D D D D D

4 4 4 4 4 4 4

The

FIA

ringer

is

not

intended

to

be

used

uith

4-party

selective

or

8-

party

semiselective

service,

or

any

other

service

where

code

ringing

u:

ould

not

be

distinguishable

in

CHIME

position.

For

schematic

drawing

and

maintenance

information

on

FIA

ringer, see C Sec-

tion

entitled

FIA

Ringer.

Note:

Use

normal

connection

s on

tip

-

party

ground

s

tations.

If

bell t

aps

on

sta

tion

s c

onn

ected

to

long

lin

e c

ir

c

uit,

u

se

rin

ge

r

rever

sa

l co

lumn

in

Tabl

e B

to

re

ta

in

tip

-

party

gro

und

identifi

ca

tion

.

*

Wir

ed at

fa

cto1·y

for

individual

or b1·idged,

ring

·-,

and

tip

-

party

se

rvi

ce.

Page 6

INSIDE

WIRING

DIAL

{

LIGHT

TRANS

TIP

{G)

SEE

NOTE 2

RI

NG

{Rl 5

A

AI

r

I

SS

4,

SECTIO

N

C38.670.40

EIA

MTG TERM. SWITCH ASSEMBLY DI

AL

NETWORK

495A

HAND

SET

R

IN

GER

COR

D STRIPS

8A

G3

AR

2

4

6

3

(S-G)

CLOSE FOR

N IGHT L IG

HT

(Y

) D

IAL

LAMP

(BK) 4

{S-

R)

{S

- B

Ll

{BL)

j

k

{

BK)

ST

RAP

GRD

{R)

L2

{

S-Yl

D {Sl

{S

- Rl

GN

{W)

{W

) NOTE

1~RI

•

(S

- BK)

{W)

*

{S-W)

g e

(G)

{S

-G)

d

~

(

~

To

pr

eve

nt

fal

se

holding

c

ondition

when

hand

s

et

.a

~

is

rest

or

ed,

swi

tch c

ontact

s cb

must

break

before

JL

de

br

e

ak

s.

Note 1:

Dott

ed lin

es

indicate

connections

for

manual

service.

The

dial

remains

on

the

set

.

Note

2:

For

individual

lin

e

ringer,

co

nn

ect

BK

to

tip

(6)

and

Y

capacitor

lead

to

ring

(

5).

F

or

co

mmon

audible

ringer,

co

nn

ect

to

signal

leads

from

equipme

nt

cabinet

using

D-161488

connec

tors.

Note

3:

Ground

may

be

omitted

if

n

ot

required

for

se

rvi

ce;

not

necessary

for

protection

of

dial

light

transformer.

" Co

nnect

with

D-161488

connecto

r.

Fig.

6-

7018

Telephone

Set

Wired

for

1A1 Key

Telephone

System

Page

7

SE

CT

ION

C3

8.

670

.

40

TO

55A

CONTROL

UNIT

Page 8

8 Pages

INSIDE

WIRING

GRD

(Y)

CONN MTG

TERM.

BLOCK CORD STRIP SWITCH

ASSEMBLY

CLOSE

FOR

NIGHT

LIGHT

DIAL

SA

NETWORK

495A

[ .

'"

DIAL

LAMP

Rl

A

OR

AG

6

(R)

(BL)

MIW

CORD

(S-

BR)

c

TO

CO

PBX

lA

,I

AI

,

'0----('-c

S

_--:-Y_)

---<~

b

(S)

a(S

-

W)

D

OR

6A

TIP

LINE

(S-RI

(W)

TO c 7 (W)

XMTR

---~~--~~-~

f

(S-BK)

g~~~~-----------------------~

(

W)

UNIT

(G)

e

~T~'-----~~-~(G~)---L~I---(~S_-~G~)~d

2

~

R

~

E

~

A

To

prevent

false

holding

condition

when

handset

is restored,

switch

contacts

cb

must

break

before

de breaks.

D

JL

Note

I:

Dotted

lines

indicate

connections

for

manual

service.

The

dial

remains

on

the

set.

Note

2:

Ground

may

be

omitted

if

not

required

for

service;

not

necessary

for

protection

of

dial

light

transformer.

···

Connect

with

D-161488

connector.

Fig.

7-

701 B Telephone

Set

Wired

for

3A

Speakerphone

TABLE

F

7018

MODIFICATION

TELEPHONE

SET

FOR

3A

SPEAKER

·PHONE

Lead From

To

BL

Mtg

Cd 4 D Conn (S-BR)

(S-BR)

Swhk

c

BL

Mtg

Cd D Conn

R

Mtg

Cd L2 F

(S-W) F c

Note:

Strap

3 to L2

term.

strip.

HAND

SET

G3A

R

,

Bell 701B User manual

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