INTERPHONE SYSTEMS-1 A (HOME) - Bell System...

1

BELL SYSTEM PRACTICES Plant Series

1. GENERAL

INTERPHONE SYSTEMS- 1 A (HOME)

CONNECTIONS

SECTION 512-51 0-400 Issue 5, August, 1964

AT&TCo Standard

1.01 This section is reissued to include the 712B, 1712B, 1558D, 751- and 1751-type tele

phone sets.

1.03 The 1A HOME INTERPHONE cannot be used with tip party_identification.

1.02 The 1A HOME INTERPHONE system is limited to two door answering units and

five stations.

1.04 Refer to Table A for index of figures and tables.

Type of Tel Set*

511C/D

1511D

558C/D

1558D

711B

712B

1712B

751A/B

751C/D

1751C/D

51 A Control Unit

TABLE A

TELEPHONE SETS CONNECTIONS

Connections and Modifications

Fig. Table

1 B

2 c 3 D

4 E

5 F

6 G

6 G

7 H

8 J

8 J

Schematic

Fig. 9

Fig. 10

Fig. 9

Fig. 11

Fig. 12

Fig. 13

Fig. 14

Fig. 15

Fig. 16

Fig. 17

Fig. 18

* See Table K for ringer connections.

© American Telephone and Telegraph Company, 1964 Printed in U. S. A.

---~~~- ~~~---- ---~- -----

SECTION 512-51 0-400

HOLD KEY

(W)

511C/D TEL SET

DI6D 759A 6-PR SIA CORD LOUDSPEAKER lW CA CONTROL UNIT

(G) T

TO CO

1+---('-"R"-) __ .:..:.R-o LINE

(Y) GRD RINGING GROUND

660A (W) XMTR

Item

Hold Key

Mtg Cord

Switch-hook

Dial

660A Xmtr

r -·

(R)

RINGING GROUND

t- (BR-Rl (BR-G)

: (BR-BK) (O-Gl

: _ _.!:(0~-::!:R'-!..l _ * _ _..:;(0"--_::Wcc_) _

t- ---:---'('-"W_,__l -,----(0-BLl

JKT QUAD

(Y)

(BK)

730A RECEIVER

KS-16184

Fig. 1- 511C/D Telephone Set, Connections to 1A HOME INTERPHONE

TABLE B

511C/D SET- MODIFICATION

Wire or From Lead Term.

[R-Y] (Y) 1 [G-Y] (BK) 2

BL E1 w E2

w 7

[S-Wl (Y) 7 s 10

[S-Gl (BR) 9 y 11

Strap R w s

To Term.

* * 1 2

* E1 E2

* 4 to 7

10 9

E2

Note 1: Connect when one 730A receiver is used.

Note 2: See Table K for ringer connections.

* Insulate and store.

( ) Indicates current color code.

[ ] Indicates MD color code.

HOLD KEY

664E XMTR

Item

Hold Key

Mtg Cord

Switch-hook

664E Xmtr

Dial

RINGING GROUND

1511D TEL SET

ISS 5, SECTION 512-510-400

759A 6- PR 51 A LOUDSPEAKER IW CA CONTROL UNIT

(G) T TO CO

}-t----"( R-'-') __ .:..:.R-o LINE

(Y) GRD RINGING

JKT QUAD

(Y)

(BK)

GROUND

Fig. 2- 1511 D Telephone Set, Connections to 1 A HOME INTERPHONE

TABLE C

1511 D SET- MODIFICATION

Wire or Lead

[R-YliY) [G-Yl (BK)

BL w w

[S-Wl IY) s

rs-Gl !BRl Strap

R Wand

Bracket s

[V-V] (V)

From Term.

1 2

El E2

7

7 11 9

12

To Term.

* * 1 2

* E1 E2

* 4 to 7

10

9

E2

*

!\'ole 1: Connect when one 730A receiver is used.


'' Insulate and store.



I

SECTION 512-51 0-400

HOLD KEY

[S- W] (Y)

[S-Gl (BR) * (W)

(S)

558C/D TEL SET

51 A CONTROL UNIT

(G) T

TO CO

\-1.------"(~R_,_) __ -'CR'-<c LINE

JKT QUAD

IY) GRD RINGING

(Y)

IBK)

GROUND

730A RECEIVER

KS-16184

Fig. 3- 558C/D Telephone Set, Connections to lA HOME INTERPHONE

TABLE D

558C/D SET- MODIFICATION

Item Wire or From

Lead Term.

BL 5 Hold [R-Yl IY) 5 Key w 6

rG-Yl !BK) 6

Switch-rs-Wl IY) 12

hook rS-Gl IBR) 9 s 10

Dial y 11 Strap

659A R

Xmtr w s

To Term.

1

* 2 *

E1

* E2

* 4 to 7

10 9

E2

Note 1: Connect witen one 730A receiver is used.





LINE KEY

664D XMTR

RINGING II GROUND

1558 TYPE TEL SET

6 PR. IW 51A CABLE CONTROL UNIT

(G)

ISS 5, SECTION 512-510-400

730A RECEIVER

MICROPHONE

(DOOR ANSWERING UNIT)

Fig. 4- 15580 Telephone Set, Connections to 1A HOME INTERPHONE

TABLE E

15580 SET- MODIFICATION

Wire or Lead From To

Switch hook Assembly

Hold

Key

664D

Xmtr

Strap

s y

0

BR

R

Terminal Board Punching l.t 4010B Network Punching Ll

TerminallloarJ. Punching 2

Terminal Board Punching E2 Terminal Board Punching 2

Terminal Board Punching El T('rminal BoarU Punching 1

Terminal Board Punching El

G Terminal Board Punching 1

G-Y Terminal Board Punching-:-:13+------,:-----1

W TPrminal Board Punching 5

R Terminal Board Punching 13

s -1010B Nehvork Punching Ll

w Terminal Board Punching 14

Bracket Terminal Board Pu!lching 14

4-8

l\'ote 1: Connect when one 730A receiver is used.

Note 2: Transmitter bracket is part of transmitter circuit and must be connected to terminal 14 of terminal strip.

Note .1: See Table K for ringer connections.

Insulate and store.

SECTION 512-51 0-400

D14H MOUNTING 759A 6-PR 51 A

CORD LOUDSPEAKER IW CA CONTROL UNIT

(W)

(BLl

(BL) HOLD KEY ~-____;c(G.::·:..cY_.__) _ *

~-----"(~R_-Y,_,)_ *

664A XMTR

DIAL LIGHT TERM. STRIP

(S-Y)

(S-BRl (S)

(5)

(W)

XMTR BRACKET (R)

NOTE 2

L2 (O-R)

RR (O-Gl

(BR-Gl

(BR-R)

RINGING GROUND

(G) T

TO CO

}-+------"(~R!._) --~R-<1 LINE

JKT QUAD

(Y)

(BK)

730A RECEIVER

Fig. 5 - 7118 Telephone Set, Connections to 1 A HOME INTERPHONE

TABLE F

711 8 SET- MODIFICATION

Item Wire or From

Lead Term.

R-Y 1 G-Y 2

Hold BL E1 Key BL E1 w E2

Switch-S-Y 7

hook s 10 S-BR 9

R w

664A Transmitter Xmtr Mounting

Bracket s

Mtg w 7 Cord

Strap

.

To Term.

* * 1 1 2

E1 E2

* 10

9

9

E2

* 4-7


Note 2: Transmitter bracket is part of transmitter circuit and must be connected to terminal 9 of cord terminal strip.

Note 3: See Table K for ringer. connections.

·:· Insulate and store.



r 7128 OR 17128 DI4L

TEL SET MTG CORD

664C XMTR NOTE 2

(S)

759A LSPK

51 A CONTROL UNIT

ISS 5, SECTION 512-510-400

~-'-'-y'----) RINGING GROUND

JKT QUAD

(8K)

Fig. 6-7128 and 17128 Telephone Set, Connections to 1A HOME INTERPHONE

TABLE G

7128 AND 17128 SETS- MODIFICATION

Wire or Lead From

R 664C s Xmtr w

Braeket Mtg- W-S 7 Cord

Strap

To

10 Ll

9 9

* 4-7

Note I: Connect when one 730A receiver is used.

Note 2: Transmitter bracket is part of transmitter circuit and must be connected to terminal 9 of cord terminal strip.



IR-Y) • EXCLUSION

{BL)

G·Y KEY • (WI

SWITCHHOOK t (O·O) (WI

* I (RI

(G-Sl 1---

6648 (G-Sl

XMTR RINGING ,, GAr~~ NO

761A LSPK

TABLE H

751AIB SET- MODIFICATION

Wire or From To Lead TB3 TB3

w 10 2 Exclusion BL 9 1

Key G-Y 2 • R-Y 1 •

Switchhook 0-0 11 • 761A G-S 8

Loudspeaker G-S 3 R 10

664B w 9 Xmtr s E2

751 A AND B TB3 N PLUG TEL SETS - CON

I (R) (BL-W)

2 {G) 2

(W-BLl

4 (Y) 4

(O-W)

nc5 (BK) 5

{W-Q)

7 {S-Y) 7

(W-sl

6 (BL) 6

(S-W)

9 (BLl 9

(W-Gl

10 (WI 10

(G-W)

8 (S·GJ 8

(BL-R)

3 (S-G) 3

(R-BL}

'""" II E2

'----

6 PR IW CABLE

{WI

BLI

(W)

(O)

(W)

(G)

(WI

SRI

(WI

(SJ

(R)

R24

ISS 5, SECTION 512-510-400

51A JKT CONTROL UNIT IW WIRE

(R) ) TO CO

}-1---J.{G!'-IL___ LINE

~J.{Y.!_)L_ __ ) RINGING GROUND

JKT QUAD

{Y)

(BK)

MICROPHONE

(DOOR

Note I: Connect when one 730A receiver is used.



Fig. 7- 751A/B Telephone Set, Connections to I A HOME INTERPHONE

Fig. 7 and Table H

Page 9

TABLE J

751C/D AND 1751C/D SETS- MODIFICATION

Wire or Lead From TB2

BR 9

w 10

BK 2

Hold y 1 Key BL 9

s 3

0 8

0 6

W-0 G

Line 0-BK 3

Key S-R L2

w 11

BL 7

s * y 11

Switchhook BR G

G L2

664B BL-R Xmtr R-BL

R 761A w Loudspeaker

s

To TB2

1

2

* * * * * * * * G

5

6

L1

7

* G

8

3

10

9

Ll

[

[

l [ [

!BK)

I y BL

HOLD KEY

(0 BK)

LINE 0) KEY

{W-Q)

-

SWITCHHOOK

J~~ --

6648 XMTR

76\A I LSPK

• • ~ * (BR) I (BL-W)

* • (Wl 2 (W·BL)

* 4 {O-W)

IW) 5 {W-0)

• IYl 7 (W-S)

• (BL) 6 (S-Wl

IWI 9 IW·G) ,

!Rl 10 (G-Wl

{BL-Rl 8 (BL-R)

{R-BU ' (R-BU

,, II {W-BR)

RINGING_ GROUND

40108

(S-R} N~K

G G

lSI Ll

• lSI

751 AND 1751 TYPE 6 PR TEL SETS IW CABLE

(BL-W) w

(W-BL) BL)

{O-W) w

w-oJ 0

(W-Sl (W)

(S-W) G

(W-Gl IWI

(G-W) BR

(BL-R) IWI

R-BL) s

R

R24

ISS 5, SECTION 512-510-400

5\A JKT CONTROL UNIT IW WIRE

R) J '1-l---'-'Gu____ ~?NE CO

,--'-I Y!J)'---) RINGING GROUND

MICROPHONE

IY)

BK

JKT 730A QUAD RECEIVER

{DOOR ANSWERING UNIT}



'' Insulate and store.

Fig. 8- 751 C/D and 1751 C/D Telephone Set, Connections to 1 A HOME INTERPHONE

Page 10

r

I

r

r

r

" '

TABLE K

RINGER CONNECTIONS FOR 1A HOME INTERPHONE

Type of Ringing

Type Set Ringer and

Leads Bridged

Ring Tip Party Party

S-R A A A 511C/D s K K K

and C4A 558C/D R 1 1 2

BK 2 11 11

S-R A A A

1511D C4A s K K K

R 1 1 2

BK 2 12 12

s • • • S-R • • •

1558D M1A R K K K

BK 2 E1 El

BLt 2

711, 712, E1A Term. 6 2§ 11§ 11§ and 1712B t Term. 5 1§ 1§ 2§

S-R A A A

751A/B DlB s K K K

R 1 1 2

BK 2 11 11

S-R A A A

751C/D D1E

s K K K 1751C/D R 1 1 2

BK 2 12 12

* Insulate and store. t Leads are straps from network. :t The ElA ringer is separately mounted, and palred wire must be run between ElA

ringer and 759A loudspeaker. § Terminals in 759A loudspeaker.

HANDSET NETWORK

... "' ~

~ " II " 1\ -

IS- c: J

I I I XMTR

~ • '-

R B

GN

6!S9A OR 660A XMTR DIAL SWITCHHOOK RINGER TERM. HOLD MTG IN TEL SET ASSEMBLY tsEE NOTE ) ON KEY

NET.

i ------;;cRi--, I i 1 •• ) r I

I '"" I I _lSI I I ."+ _[S-W)[YI I lSI I

•• : rs-GIIBRI L,.,--------:.1 * (GI Ll [S-GXG-i!K ,~..- (BLI

~~

•• !WI

~· n ... BU (G) · ....

[S•Y](G) ~L2 (S-RI

[S-BRJ !WI

[S-Rl!RI

tWI

WI ... [S-BK]IBKl f

• lm

* + y n.G

LINE KEY

IBK

• +v. (GI

(Y)[R-Y]

IBKI[G-Yl

(R)

... (Yl

!WI

+ IBL

RINGING Ill GROUND ''I

TERM. STRIP

-.10

9

J.E2 ~EI

4 ...._ 2

* *

J.l

3

~7

• II

GRD

ISS 5, SECTION 512-510-400

MTG 6 PR LEAD CORD OR IW CABLE DESIG

IO-BKl IBRI M2 (OJ !WI Ml

(BR~Y) !WI DC

IBKI (WI 2T

(G) (WI IT

'

i IRl IBLI IR

IYI IOl 2R

(BLI IGl SW

(0-BU IRl RINGING GROUND

Note I: See Table K for ringer connections.




Fig. 9- 511 C/D or 558C/D Telephone Set, Connections to 1 A HOME INTERPHONE

Fig. 9 and Table K

Page 11

I

I

I

I

JJ TERM. m. ~ IAR OR < ,g STRIP JJ G3AR

664E % !H lNOSET ~

(~~~·s"''=====ti • l A ;

2SB3 DIAL

I ' <GI l ' ~----------~--~~~~ 8

w 10 • ~ •

,.. 3 j <R-GI

I' 4--..J

• •

--

.

• (0-BK)

kl

RR

42SE ~ETWORK

,J t 9 (V} [V-V] * L--------------------+7L_ ____ 1P(~O)~N~-G~]~.---~~----------~·

i SWITCHHOOK ASSEMBLY

~ ~ (RI

IIW\ ~

I {Sl

C4A f RtNGER:¢ {SEE NOTE)

HOLD KEY

631A KEY

Gl2 y

E2

El

I IGl

I IBR-YI

l<ecl

ISS 5, SECTION 512-510-400

LEAD DESIGNATION

uo

Ml

RINGING GROUND

GRD 12 IO-Bl) ,,,~~~~~-~~~~ ..,. ... IIROUND





Fig. 10- 1511 D Telephone Set, Connections to 1 A HOME INTERPHONE

Page 12

2!5A3 DIAL TERMINAL G3AR 40108 NETWORK SWITCHHOOK STRIP HANDSET ASSEMBLY

I IG\ F

"' 10 (BK)

~ J IR·G)

R 3 • • i A \

~· l "' ~ ~

:llj[ 2 (W)I21Wl IWl ,.-- ' I ·L ... ' ..

:!1 ~ '-- XPR I ·L ~L:" ~ ,..- 4 (R) 11 (R) GN RR

•• •L '-< c IW)

" I~ .+· ' d

WI (BK)

IBLl ): B G

"' 5 '"-. IBRl

l ~

' (S)

b •

~ IR) + t ,,

~· hi

·I IBK) ' • I -~ .h t (S) Ll "''"u

(0-BK) .

L2Tto) +•. ~ ~'I 6

J 6640 XMTR

I " D

'

MIA RINGER

(SEE NOTE l (R)

(W)

BRACKET

(Yl

(G·BK)

(G)

(O•W)

ISS 5, SECTION 512-510-400

HOLD !584H TERM. 6 PR LEAD KEY KEY STRIP IW CABLE DESIG

" '""' M2

;;.14 <Wl Ml

I

7 IWI DC

(BK) 4 ''"' 2T .... }-- - IWl . .,. . IGl IT d

IY\

* • '+ • 10\

~·. + 1

ll IBRl ~ F· d ,, (BL)

* IR

~ ·t£ ! ~:~ * •• * • I

It i.JE: I ~;Y} * * i 1 ~

4 2 ~I (BL) i sw ~ R) I ~ RINGING GROUND

I j O·BK\, 5 • t i h (S·R)

""'12

t I ' ,.l j

i

i I .1

. (Y) 3 (0)

·.-:- l •• b (

= )

I I v

t!.

l ~

~ '

(0) ~· ~ ~

'+ Sl * ~ I (V) *

Wl ~s 1

mt (BL) ,-, 9 t (G)

RINGING il' El IR\ GROUND 'W '0 GRD

A I ~ 1 ' ' .. , ~ ; I Note 1: See Table K for ringer connections.


Fig. 11 - 15580 Telephone Set, Connections to 1 A HOME INTERPHONE

Page 13

HANDSET

RCVR .00

~ I

NETWORK

... 01

!r-1"1H-IH-

RR

R ·~~c ______ _

•

664A XMTR MTG IN TEL SET

DIAL SA

SWITCHHOOK ASSEMBLY

MGHT LIGHT SWITCH

HOLD KEY

LINE KEY

TERM. STRIP

~10

9

ISS 5, SECTION 512-510-400

MTG CORD DI4H Dl4l

(0-&Kl!S-Vl

101 CV-Sl

LEAD DESIG

... "'

,------;:~,;;--,

l ••) " II I IS) ,.\.E2 I (W) l b.. (S•Y) El I&R·Y)(O-Wl oc I lSI I c~~.f.J!S!:"!!!BR!!l-J~ * . IBK 4 2T IBKl IW·BR 2T

-L=I;BL~~~=-==-=====~==~~--~~--:_----1-~~--------I-JI~S-~G~l--~r~.~·v_..~ICG~l~~·~~~IT~~~I<G~Gl~~~·~·~-W~l~------~IT~----------

IGI

IS) d ••

(S·R)

(S·G)

~IBLI

I v'4+-t--I~R::!·Y~l- * (G·Y)

4 (BL)

(S·RI

IS·BLl

. IRl

4 IY)

PUSH· BUTTON

AI R

3 2R

IWl ,.,_1

+ IBLI -G 8

DIAL LIGHT TERM.

~~~~--t-~"·~-·~·~~~--------~1

IRI CBL"W) ,. IYI (W·BL) 2R

sw IBLl IW·Ol I

(G·Y)

(BR·G) !

L_~~--------J-~ICO~ll---J--------~2 (Y-G) P4

t9i. "'" IBR·R) I LAMP~--~-------i~--------~~---1--~~~

GE NO. 46



Fig. 12 - 711 B Telephone Set, Connections to 1A HOME INTERPHONE

Page 14

HANDSET

RCVR .00

~ I

NETWORK

... 01

!r-1"1H-IH-

RR

R ·~~c ______ _

•

664A XMTR MTG IN TEL SET

DIAL SA

SWITCHHOOK ASSEMBLY

MGHT LIGHT SWITCH

HOLD KEY

LINE KEY

TERM. STRIP

~10

9

ISS 5, SECTION 512-510-400

MTG CORD DI4H Dl4l

(0-&Kl!S-Vl

101 CV-Sl

LEAD DESIG

... "'

,------;:~,;;--,

l ••) " II I IS) ,.\.E2 I (W) l b.. (S•Y) El I&R·Y)(O-Wl oc I lSI I c~~.f.J!S!:"!!!BR!!l-J~ * . IBK 4 2T IBKl IW·BR 2T

-L=I;BL~~~=-==-=====~==~~--~~--:_----1-~~--------I-JI~S-~G~l--~r~.~·v_..~ICG~l~~·~~~IT~~~I<G~Gl~~~·~·~-W~l~------~IT~----------

IGI

IS) d ••

(S·R)

(S·G)

~IBLI

I v'4+-t--I~R::!·Y~l- * (G·Y)

4 (BL)

(S·RI

IS·BLl

. IRl

4 IY)

PUSH· BUTTON

AI R

3 2R

IWl ,.,_1

+ IBLI -G 8

DIAL LIGHT TERM.

~~~~--t-~"·~-·~·~~~--------~1

IRI CBL"W) ,. IYI (W·BL) 2R

sw IBLl IW·Ol I

(G·Y)

(BR·G) !

L_~~--------J-~ICO~ll---J--------~2 (Y-G) P4

t9i. "'" IBR·R) I LAMP~--~-------i~--------~~---1--~~~

GE NO. 46



Fig. 12 - 711 B Telephone Set, Connections to 1A HOME INTERPHONE

ISS 5, SECTION 512-510-400

G 3AR HANDSET 40108 NETWORK BA SWITCHHOOK HOLD KEY LINE KEY TERM IITG 1 LEAD DIAL ASSEMBLY STRIP CORD DESIG

~

__111

~

eF llll<l ~4- (W-eR) 2T

_F,

~ :..!_ _;: (G) (W-IlL) IT

\L - T lo(

] ,.

~= " ,.. ~ CVR • I (BR) .ll!_

~ \ ~~- (8~ _ill_ ..l!!_

I J l ·~ (G) _!L...ll!l / I I

•t, ...ffi d. ~ I .n& ~ I (R) t• .L~ (G·V)

.. ~ ~_!_ .;t_ .(S) -* ~!! (BK) ~. • I

-(8-R:

1~ ~· (G)

toN

fl.~ ~~· (BL) ;::~ (S·W) P3

~ ~· __W!l

~·~ (O·W) ill_ -,!, _rn_ =r:fhcl_ J (W•O) ~T _.!Q

~ IY,.•. ..l ~

664C XMTR MOUNTED IN MAKE o't. kQ:IIIC ~ ~

R

X

TELEPHONE SET 8ERlRE P4 BREAK J .s_ _!'t:Jil_

!'{,<n_ *

J LAMP TERMINAL BOARD (BL) 4 (G·tl

l'i (S·R) /~RINGING NIGHT t =GROUND LIGHT I SWITCH (G)

(0)

• OIAL ,_,3 (Y-G)

UGHT



Fig. 13-7128 Telephone Set, Connections to 1A HOME INTERPHONE

2~H4 DIAL

I G3AR HANDSET 40108 NETWORK rWITCHHOOK

1 HOLD KEY

ASSEMBLY

~ ' I 'I ~ ~1

~ t ~, ~ ,, 'J

J (Gl ~+ I

~ _!9-B><l Jl 10 f IBKI

~ :J .l!l!!l

~

(W) 3 (R·G) c' BK

'oF d'/1 o<Gl * ' .. .,. ... :!Jll* n· RCVR -~

ld* ~"' 2 ~)--__,

* Jt r-- ~ * "L jL i ( rJ-1 ~

(W) ~

[): ] ~ •L ;i r- :::Jc: :: (G) 4 XMTR

'L c RR 0

t1 v ~ u I'( R L . ~ BKl

l•• .. • BL '?!" ~ , lll'l GN (R)

BREAKS LASl + f ~ IBKl O

t- 0 e • 'I 664C XMTR MOUNTED

MAKES FIRS~ .1 I IN TELEPHONE SET

ISl Ll '• (Sl b a .' MAKE BEFORE

]~:+= ~ t I G BREAK (W-O)

j (R) • rl l " ;; '· _J!L

BR CKET :; • l

li R

,, R '• (0-BKl

v /!__

ISS 5, SECTION 512-510-400

I 838A

~-· I MTG

LEAD LINE KEY STRIP

' CORD DESIG

M2

_I!]_ i I (BK)

~

J DC

4 (W-BR) _2L ... IT

; i q (G) 3 (W-BL) I /

lit

:) .l• 2R

itBL"Wl • I IYl u 2 (BR-W)

i F< ~ G-V * sw l.o.-:' y

-• • ~j

(S-Rl I~ P3 ;: '

W) 7

SIG ~

~KEYt Y (BL) E2 . (S-W)

• . (V-Gl_

BRl ~·· (O-Wl * ' y P4

s 8 (W-0)

* lOl 9 ! m.j. (V-S)

• tc) __[ n!0~ if (S-V) " ~ o·· (0

·~ ~ I

Vkf.At<ff-wJ" :$ ·-LAMP TERM. BOARD 5 ~ /'U ~

6 v, / RIIIGING .

BL) ~:ROUND S-R + (G·Y)

NIGHT + LIGHT (G) SWITCH - (Q)

I •i

-" 2

3 (Y-G DIAL LIGHT



F. 14-17128 Telephone Set, Connections >g. to 1A HOME INTERPHONE

H G3K

., TERM. I I Iii 40108 NETWORK 664B XMTR

ANDSET

J ON 3A

CORD " IRl

;; REEL • ~·~ " ! .,

I ' ~+

' I tWl

i1 ~ • ,,..,_.; r.~ .• :·4£';ff!?*lfft'M l illf CdJIE.±( ,.,. ~

~~

• IG·S) ,~

(G-S)

''!**"'' _,._

~ '"''"' -~ 0

(iPART OF ~ I8A DIAL W) TBI

Jj

~ (RI R (W) ' -)f--.

,...... <! (Wll SWITCHHOOK

i w ... ASSEMBLY

; " "' o;: ~ IW)) ~~

,.. y1f I w ' IBL) w

• IBLLl

: r 1: ] ~ liL t IS)

':Jc : tGl •• !WI GN r.!'" ' !Gil rs-vltYJ I b

I tRl , l 1: I

..2!i (S-BRJ(BR) e .,., R

~' * l..Il: •• ~ ' * IS·GJ(G) d

" ' ~ rs-SltWl t. i rs-RJ tRl

' I •• lOKI

[S-BKJ(BKl • ' - ' i 1*_!0~)

• - * [S-BLJ(Bl}• tk I

i

i i

~

' I ' ' I ' '

i

P-24EI21 KEY (EXCLUSIO~N OR HOLD) i

IBL) (W)

(G-Yl

* IR-Y)

* '

• 4-

---

I TB3

: 10,.

' 9

• 7

3 '¥ •

' RINGING 111 I GROUND

B II %

tsl'~ ~ ~ B E2

i ~ ~ ' I

_l 2

i ~ '

i ' 4

rL ' 5

' 6 ' ~ ' 0

' SR I

' ' i '

I ~

I ' /u i TBI

-

' ' I

5840 KEY

'-+- I

"' ;; :; ::; E ~ ! '" ~ e !!!" e e

v 4tJ ' ... 4- I+

'

ISS 5, SECTION 512-510-400

cor• I I I I

!WI ! IBLI I (S·G i

~ IS·Yl l (S-G :

I iN (0-0}

: ,.,

fj~ i

i IRI

I. (G)

' : I

' tYl I

I I IBKl I

: (BL) I '

i I

i

~~

i

DIC Rl NGER OTE I) (SEE N

Not e 1: See Table K for ringer connections.

sulate and store. *In

( )

[ l

Indicates current color code.

Indicates MD color code.

Fig. 15 -751A/B Telephone Set, Connections to 1A HOME INTERPHONE

8C DIAL

(W)

(W) (BLl (G)

• (W)

GR3

CKVR ll ;:::::;- -.h: i I Tm __:_ ~~" ' •

HANDSET 1 '-4 -:"R;--l__,.,--j------

XMTR I ) (BK)

'3A CORD REEL

40108 NETWORK

RR c

F

G<tJ::

OlE RINGER

(SEE NOTE I)

~ TERM. BD I

v.

' ' ~ (W) ' ~ ~ (Sl

BL

d ·+

_..'!.

I

.J~l --'-(Yl

8 (BR) * (G) ~

~(W) :

. I ;

Lt~----------~~------+-4-h !

*****

~ . HOLD KEY (P-26E909)

TURN KEY

LINE KEY {58461

TERM. BD 2

PUSH BUTTON

(R)

(W)

(BL-RI

(R-BLI

" CONN ~ Assy· "~P-26E907

: ~

9 ; (W-G)

7 (W-S)

6 : (S-W)

0; IW-Dl ./

;j. . : (O-Wl

eJI• (W-BR) (

' (BL-W) .

ISS 5, SECTION 512-510-400

CORD D12E

71A CONN BLK

( !G·W) " 0l"IO,__ ___ _.,M.,_2 ____ _

( (W·G) • e'}r------'MBJ( ____ _

-{BL R) ,. : (W·S) + 7 oc

c{S-W) 6 --Z.T

.._tW·Ql • 5 J IT

!O-Wl • (R-BL) 3

IR

2R

/ (BR-W) 12 sw RINGING GROUND

((W-BRl"' 011

4

(W-BL) ~ 2

Sl !BL-W) I S2



Fig 16- 751 C/D Telephone Set, Connections to 1 A HOME INTERPHONE

25A3 DIAL 40108 NETWORK

~~'~' •• wa

.. ;

(Rl

,~~i~~~~6tJ~~E._'o~-BK~lt=~-c-0,_"" __ _,_~+---~ '¥ IWl ,;!vc" - F

f y : (BK) • j -----o1QL_ * k + 1 (BL) *

RCVR lJ-..., .J._ '-,i----+--+---' G3K ;l_ L~ir~IWl_~~~~;;~J--t-------~

HANDSET 1 Rl

XMTR ) IBK) I

3A CORD REEL

L-----41-+++----l--------''1

I GQ'l'

DIE RINGER

(SEE NOTE" )

I ' ~

* * * * * i

~ . HOLD KEY (P-26E909)

TERM. EID 2

!Rl

(Wl

{BL-R)

I CONN ASSY

r-26E907

~

-10 ~; {G-W)

9 I IW-Gl

8 (BL-R)

7 (W-S)

6 (S-Wl

;,--r=t~======~5J[~(W~-~O~l~ ~~ 4 !O-Wl

· (R-BL) 3 {R-BL)

• • '

I ~ 'I

f ' ;~

12 (BR-W)

(W-BL) _/

I (BL-Wl

ISS 5, SECTION 512-51 0-400

CORD 71A 012E CONN

BLK

~j

' • ( (G-W) ~ 010 MZ

E (W-Gl "e? M'

L (BL -Rl W _n&

, (W-Sl ~ 7 DC

, (S-Wl ' 6 2T

'(W-Ol ~ '<.-' 5 I IT (O-Wl ;; ~ 4

'(R-BLl : _;,,

IR

2R

,(BR-Wl 12 sw 1_ RINGING GROUND

L1_w-sf!l_' _,-,II

(W-BLl 2

Ll_BL-Y!'l_ t,l Sl 52

:; I M

ee Table K for ringer connections. Note 1: S

* Insulat e and store.

LINE KEY (584G)

Fig. 17- 1751-Type Telephone Set, Connections to 1A HOME INTERPHONE

LEAD DESI9

nr.

..

MTG CORD

t_SEE NOTE 4

759A LOUDSPEAKER

~· ::,a

:.

T

lA HOME INTERPHONE

r-- 6-PAIR IW CABLE

I!BRl , •

l1w1 I*

(WI

!tOLl

(Rl

!Bll

14--+1-'lEE NOTE I

p

Ll~ ~~1 ..J:)L_RD-------'

MICROPHON .. £ LOUDSPEAKER

; UNIT! (Rl

TO

=D=flll~ 6-8V AC FROM l05-130V 60"' (Gl TRANSFORMER

~A OR KS-16184

TRANSFORMER JKT PAIRED

SIA CONTftOL UNIT TERM. STRIP

T T

PI J ,.:~ J -~ .,-, ......

ISS 5, SECTION 512-510-400

Soil' I: For o:ets not equipped with mounting cords, run G-pair lW table directly to telephone set.

Sote 2: When G-pair IW {'able i:-; run directly tP telephone ,.:,et, use D-l!i1.J88 connector to cxlt'!HI leads to 15DA loud~peaker t room speaker).

Sole .1: Connect 1{20 \vhen one 730A receiver (door answering unit) is used.

Sote J: These leads are for 751- and 1751-type sets only.

r-----------------------------------------------,

I L- --l------- -----

-,1.- Cl2 + 1000

Rl7

RS lOOK

RO 10,000

MICROPHONE AMPLIFIER

R22 500

MICROPHONE GAIN l.g_

24,000

T 4 17 1i' !!" }] l,rn,; I

(

LOUDSPEAKER AMPLIFIER

( (

I I I I

I I I I I I I I

------------------------------- __ ...J

l

-:-okc11 .,.* 10

51A CONTROL UNIT

F. 18-51 A Control Unit-1A '9-HOME INTERPHONE

20 Pages

INTERPHONE SYSTEMS-1 A (HOME) - Bell System...

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