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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.
---~~~- ~~~---- ---~- -----
Page 1
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
Page 2
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.
Note 2: See Table K for ringer connections.
'' Insulate and store.
( ) Indicates current color code.
[ ] Indicates MD color code.
Page 3
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
Page 4
To Term.
1
* 2 *
E1
* E2
* 4 to 7
10 9
E2
Note 1: Connect witen one 730A receiver is used.
Note 2: See Table K for ringer connections.
* Insulate and store.
( ) Indicates current color code.
[ ] Indicates MD color code.
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.
Page 5
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
.Page 6
To Term.
* * 1 1 2
E1 E2
* 10
9
9
E2
* 4-7
Note 1: 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.
Note 3: See Table K for ringer. connections.
·:· Insulate and store.
( ) Indicates current color code.
[ ] Indicates MD color code.
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.
Note 3: See Table K for ringer connections.
* Insulate and store.
Page 7
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.
Note 2: See Table K for ringer connections.
* Insulate and store.
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}
Note 1: Connect when one 730A receiver is used.
Note 2: See Table K for ringer connections.
'' 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.
* Insulate and store.
( ) Indicates current color code.
[ ] Indicates MD color code.
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
Note I: See Table K for ringer connections.
* Insulate and store.
( ) Indicates current color code.
[ ] Indicates MD color code.
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.
* Insulate and store.
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
Note I: See Table K for ringer connections.
* Insulate and store.
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
Note I: See Table K for ringer connections.
* Insulate and store.
Fig. 12 - 711 B Telephone Set, Connections to 1A HOME INTERPHONE
Page 14
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
Note I: See Table K for ringer connections.
* Insulate and store.
Fig. 13-7128 Telephone Set, Connections to 1A HOME INTERPHONE
Page 15
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
Note I: See Table K for ringer connections.
* Insulate and store.
F. 14-17128 Telephone Set, Connections >g. to 1A HOME INTERPHONE
Page 16
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
Page 17
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
Note I: See Table K for ringer connections.
* Insulate and store.
Fig 16- 751 C/D Telephone Set, Connections to 1 A HOME INTERPHONE
Page 18
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
Page 19
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
Page 20 20 Pages
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