Page 1
BELLSYSTEMPRACTICES SECTION 502-543-403
AT&TCo Standardlssue 7, December 1980
SERVICE
2565GK, 2565GKM, AND 2565GKMS TELEPHONE SETS
CONNECTIONS
1. GENERAL cord conductors can be extended to the control
1.01 This section contains information for the connecting block. If control unit is located at the
2565GK (MD), 2565GKM (MD), and 2565GKMS key equipment, extend the leads through an A25B
telephone sets (Fig. 1 and 2). connector cable or inside wiring cable. Speakerphone
1.02 This section is reissued to"
. Show 2565GKM telephone set MD manufactures prior to July 20, 1979] telephone
. Add information on 2565GKMS telephone set multipled with any other set capable of furnishing
. Add D-181006 Kit of Parts (Polarity Guard) speakerphone leads must be disconnected, insulated,
e Add information on the 533K diode (or these speakerphone leads will provide a common
equivalent) which replaces KS-15724L1 diode, path between the circuits of the multipled telephone
1.03 SThe 2565GKMS telephone set is similar to Division 512.4
the 2565GKM set except the new line switch
is provided on the 2565GKMS which breaks both 2.05 Exclusion can be provided by the addition
the tip and ring side of the line instead of the ring of a D-179935 Kit of Parts which must be
side only.¢ ordered separately. Connect as shown in Table A.
unit by using a 149-type adapter or 66E-type
connections are shown in Division 512.
2.04 SWhen a 2565GK (MD) or 2565GKM [(MD)
set is not used as a speakerphone set and is
speakerphone feature, the T1 (V-G) and R1 (G-V)
and stored at the telephone set. If not disconnected,
sets. Speakerphone connections are shown in
2. CONNECTIONS 2.06 SWhen a polarity guard is required with
2.01 These sets are factory-wired for use with separately) can be installed and connected as shown
1A1, 1A2, 6A, or 6B key telephone systems in Table B.¢
(KTS), 4A speakerphone, and individual or common
line ringer. They can be used with 1A KTS by 2.07 An 812559623 (P-25E962) terminal strip
modifying as shown in Fig. 3 and 4. Hold feature assembly (ordered separately) is available
is not provided, when additional terminating points are required
2.02 Early model sets were furnished from the
factory with H1A (MD) ringer, current models 2.08 Installation instructions for the exclusion
have H1B ringer. Provision is made for buzzer, switch, polarity guard, and auxiliary terminal
ordered separately. Use spare pair and terminals strip are given in Reference Section 502-500-120.
to connect to equipment. When power failure
feature is provided in the KTS, audible signal 2.09 All convertible key positions are supplied as
must be wired with capacitor in circuit, pickup keys To convert from pickup
2.03 If 3-type (MD) speakerphone control unit is detail from key positions involved. Make necessary
located near the telephone set, the mounting wiring changes as shown in Table C.
NOTICE
Not for use or disclosure outside the
Bell System except under written agreement
Printed in U.S.A. Page 1
these sets, a D-181006 Kit of Parts (ordered
for auxiliary services such as buzzers, lamps, etc.
(locking) to signaling (nonlocking), remove the screw
Page 2
SECTION 502-543-403
__ (W) Ct (O-BK) -
(NOTE I) DSOS .........
fR (I) ^2/ L (BL-W) IR
- _ -_'"-"-_'_% I _. _ ,-,v ,, --r_,_ _)N / (V-BL).
T
R (2) 8 . (BR-W) 2R
_(_) o-__,< (w-_ e=_. v (BL-v)___.,_CH
1A1, 1A2,
6A, OR 6B .-.k
KTS LINE R (4) _ I0 < (S-R) . .(_4R v1,, ,,,. IV- O) I SH 2
C0NNS T ('4) ' <;_ 35 < !R-S) , , _4T v _. (O-W)
T (3)
CLIP NO,. (NOTE 1) (_ 6 PU
(i )
(3) _ _<..(0.-R! _3_ ,,v .,• TO
- __ 32.<. (R-O) . T _ "' (NOTE 2) - '
. (_) _ ,_< (o-_)(__oi '_"_ _ - ' _,, -}-
T (5) _ 38 < (BL_Y)' ' v R
R(6) 025>-<,6< ............. <_6 x , L2t (0)
T (6) '"_ 41 < (Y,BL) "_ ¢6T X _' (G) , (_ "
R ! : -o_.o_ 2 3 / (G -v) (NOTE $ ) ...........
SPE AKERPHONE iT _ 49 < (V- BR) (NOTE 3 )
IAI, 1A2 LG (3) i - -.,_ 34 < (R-BR) ,_ LG _ :Om;'(::)_< 47 < (2)
KT" 12 < (0- BK) L4 (O-Y)
CONNS LG (4) _ 37 / (BK-O) _ _ '7 < (BR-BK) +9
IR _ 24 < (BR-V)
" , _ ,_< (v-G,! ........ _t ....... (0,).........
/L(I) 6 . PART OF DSOS
LG (I) 5 • (W-G) (2) LG : _ CLIP NO. MTG CORD (NOTE 1)
L (2) ;_ 28< L2: _ R _ 2'< (BL-V) GER
: 6 < (BL-R) , '(_ : I::::_-_ EXCLUDED T
............ STATION
LG (2) :-:o..,Lko.._ 31< (R-BL) .j,_LG ,_ B _ 46< (V-BE) _)ET
_ _ 22 / (O-V) , ,,(_)EB
L (3) - _ 9 < (BR-R) _ L3 _ (NOTE 2) :A OR H 43 . \ (V-O} EH
L (5) _ _ 15 < (S-BK) .... (2> L5
MTG CORD {_ 5 d (V)
4
(G-W) ..._ L I '
:5.... _,_.#-- (NOTE ')
"_j¢ X ' "' _ USION
I" :' (BL-W) (ORDERED
(_3 TABLE A (W- O) SEPARATELY)
' - -- - " (o-v)
C)_Q. T v .. ..
...... @8
• ? .................. PART OF 636B KEY LS )" (G-W)
(G)
..........
7
,
TO
OR 3
L (6) 03.60__ i 8 / (G-Y) _L6_ t_ (G-R) _ 2
LG (6) : _ "43< (Y-G) ' - LG SIG GRD L_.... 19<
SPEAKERPHONE .... _ 25 < (S,-V) ................. f_) ...... a
IAI IA2 - - "
6A 'OR 6;I A-H-S-
KTS A , _ 36 / _4 v (BR) HIA RINGER
LEAD I A- H- S-_ -- 2650_
CONNS IS, (5) ; _ 39< (,BK-BR), __SH X (Y) . __
SPEAKERPHoNE "_'AG ' 49_ . / (V-S) I (NOTES 4. 5, AND 6)
BUSYLAMP_CIRCU ..... _ 44 < , ' ' Q_ Ii __ (S_Y)_RR (S)STRAP __At
LK (S)
C AI-B _ 2<, (o-w) Qb,e PU -;_ M
[ A-H (l): _ 27
A'H (2) _ _T_ ..... (BR) 'I,,. (_) _ _o t<33
I Sl (4) (BK- BL) H
-- \ (S-Y)_ RR (R) (S-R)_A
I SI (6) _ 42< (Y-O) ,(_6H (BR BK)
o_ ..... '_ ............. I
BL 37 . (Y--BR) ....I I RIB RINGER
RINGER LB-BI __ 45 \/ (Y--I - .......... L (y_,)_,, (,_j._p_,*.,o.
....
\- - ..... I/, 8 (. '(BR_Y) SG,, , G-SG
........................ b,
- IO00Q
50
.................
Lit ,,(y) .... LS
......
Fig. 1--1_2565GK (MD) or 2565GKM (MD) Telephone Set, Connections (Sheet 1 of 3)_1
Page 2
t
Page 3
ISS 7, SECTION 502-543-403
I (O-BK) I .. PART OF 35-TYPE DIAL I / ..... \
" ' w -" i
I' -I 2565GK (NOTE 7)
,_!G-W) 1, -- Svt I
_v) I - A ] I (R) Tt (R)
. .... I _3'_ '
I x w
I _ - _ I - I -_ , TRMTR
I (R-G) R f (W)
I - ' RCVR
A v .,,, , A I
I .......(BE) Bt (BK) L_
G3A- TYPE HANDSET
I ' _ ,
FROM I I (R) LS
SH I c__t I I (W-BL) t (W)
i
....
.... (w) It _ T___- "..... !1 ' -
I y z I A ,E_o,K ,
(G). I : I : _ ...... <D
I lii I F
I I G.
, , 1
(o) i I . _'_
L__ 1 c RR
Fig. 1--1_2565GK (MD) or 2565GKM (MD) Telephone Set, Connections (Sheet 2 of 3)_1
Page 3
Page 4
SECTION 502-543-403
,- PARToF3_----_YP--;-o_ ----I 256_G_<:NOTE7)
F .......
(O-BK)I" ._ I ".... -"
(G-W) ,, s /-,vt J JACK H4 DU
( 0) J i| ( R ) T t ( R ) CORD (R) HANDSET
= j 616D HANDSET GISA
,, _ . ..... _%. .
I i e, << . e-
I ,v I ,
I I (.K)
FROM I I (R) LS+_
G(_t (W) (W-BL) t' (G)
SH_ I I _s
.... i -- T 'vA" i -J'r <(, .... ./(G)
I J NETWORK
(G) J _ y z j A R
, 1
,, i v
__ v _, J : ! I
i j (R-G)
_ , 1
Rt. (W)
......
,:(!(
L ........... _] c ..
NOTES"
I 66E-TYPE CONNECTING BLOCK SHOWN MOUNTING CORD MAY BE PLUGGED
DIRECTLY INTO AN A25B CONNECTOR CABLE COLORS AND PIN NUMBERS FOR
CONNECTOR CABLE ARE SAME AS MOUNTING CORD
2. IF EXCLUSION FEATURE IS ADDED CONNECT SWITCH LEADS PER TABLE A.
3. DISCONNECT, INSULATE AND STORI_ TI (V-G) AND RI (G-V) MOUNTING
CORD LEADS WHEN SET IS NOT USED AS A SPEAKERPHONE SET. THESE
LEADS ARE INSULATED AND STORED IN 2526GKM SETS MANUFACTURED AFTER
JULY 20, 1979. WHEN A SPEAKERPHONE IS INSTALLED CONNECT TI (V-G)
MOUNTING CORD LEAD TO NETWORK TERMINAL G AND RI (G-V) MOUNTING
CORD LEAD TO TERMINAL 9
4. FOR BRIDGED RINGING ON ANY LINE USING H1A RINGER. CONNECT (R) RINGER
LEAD TO RING AND (BK) RINGER LEAD TO TIP OF LINE INVOLVED FOR
BRIDGED RINGER ON ANY LINE USING H1B RINGER, REMOVE (S) STRAP LEAD
FROM RR (KEY TERMINAL BOARD) AND CONNECT TO RING AND (BK) RINGER
LEAD TO T I P OF LINE INVOLVED
5. I F CAPAC ITOR ! S NOT REQUI RED IN RINGER C I RCUI T MOVE (S) RI NGER LEAD
TO A OF NETWORK FOR HIA RINGER AND (R) RINGER LEAD TO A OF NETWORK
FOR H1B RINGER
6. TO SI LENCE RINGER PERMANENTLY, REFER TO APPROPRI ATE SECT I ON I N
DIVISION 501
7. 2565GK SETS ARE EQUIPPED WITH A HARD-WIRED GSA-TYPE HANDSET AND
CORD. 2565GKM SETS ARE EQUI PPED WI TH A G ISA HANDSET H4DU HAND.-
SET CORD, AND 616D JACK.
/
\ < ) ) _ TRMTR
Page 4
LS - LINESWITCH
P U -PICKUPKEY
t -NETwoRKTERMINAL.UNDESIGNATEDTERMINALSAREONKEYTERMINALBOARD.
Fig. 1--1_2565GK (MD) or 2565GKM (MD) Telephone Set,_Connections (Sheet 3 of 3)i
Page 5
ISS 7, SECTION 502-543-403
IFI"ABLEA41
EXCLUSION KEY CONNECTIONS--D-179935 KIT OF PARTS (ORDEREDSEPARATELY)
EXCLUSION TEL
KEY EXCLUSION KEY LEADS
SYS BL-W W-BL O-W W-O BL-V V-BL O-V V-O
, ,
On any line ......
1A R* T* 1Bf H* ER ET EB EH
1A1, 1A2, 6A, R* T* EB H* ER ET EB Nit
........
or 6B
* Terminal of line involved.
t When other than line 1 is excluded on 1A KTS, disconnect, insulate, and store O-W
mounting cord conductor from terminal 1B" connect balance lead conductor from line
involved to lB.
Note" If exclusion feature is used, remove all B leads except one being used from key
terminal board" insulate and store.
STABLECe
POLARITYGUARD CONNECTIONS--D-181006 KIT OF
PARTS (840364376 POLARITY GUARD) SEE NOTE KEY CONVERSION 636BKEYLEADS
.................. TEL OPTIONS
LEAD POLARITY
............. 2565GK ..........
Dial BK RR T (MD) PPPPPS M M SG
....... (M:D_, (- PPPPSS M SG SG
Line Switch W C S 2565GK1_/I'8 PPPSSS SG SG SG
........ I ................
Polarity G RR PPPPP* S* M 6H t
Guard W C ....
STABLE Be PICKUP-SIGNAL KEY CONVERSION
REMOVE FROM CONNECT TO SET (NOTE) (BR) (Y) (BR--BK)
NET. NET. GUARD PPPPPP M M M
_ .....................
................
G-W C S 2565(1K_I .....
.......
..................... PPPP*P*S* 6H 6H t
Note: The 840364376 polarity guard replaces .................................
the 819040528 (P-90D052) guard assembly. Note: To convert from pickup (locking) to
signal (nonloeking), remove 811218924 (P-12A892)
screw from the plunger at key position being
converted.
* These arrangements use line switch controlled
ground for common signal key used with pri-
vate or intercommunicating lines. Common
signal should be used to operate a common sig-
nal relay. Do not wire directly to a buzzer.
t Connect with the (BR) line switch lead
using the terminal shown for proper option
and KTS required.
Page 5
Page 6
SECTION 502-543-403
_ (w) r_ct , (O-BK,).,
(NOTE,) o_os .......
fR {I) _ I < (BE-W) (_IR X , - N / (V-BE} I'SWlTCH
T
IAI. 1A2 2
QA OR 6B T (:5) _ 32< (R-O) (_3T .... (NOTE 2) . (W-O) ,
KTS _ I0 < V.._ R _/ ' "
CONNS T (4) -_ 35/x -(R-S) ___4T v ,, (O-W)('V-O).
" ' \ ,,-x-3R TO (BL-W) SHT
T (_) _ . (B,-_) __Z _ (O-V)
R
"(NOTE 3)
R I .... _ 23 ( (G-V) ::- (NOTE 3)
SPEAKERPHONE ZRiT ..... 24 ( (BR-V) .... (2)7
/L ( I) _ \ (_ L I .... PART OF DSOS MTG
- ' 3 • (G-W) (NOTE I) CORD (NOTE I )
LG (I) _ (W-G) (_ LG __E]) CLIP NO.-- 28 Z i
..LG (2) _ 3, / (R-B'L) ' (_LG _1_ STATION _ _ 46< (V-BL) (2)ET
_ \ ' ,
L (3) _18 _ 9< (BR-R) (__--.13 _ (NOTE 2) -A OR "" _ 22 z (0 V) EB
__0___,;........_ (_) oJ_-< _,< ("-_") o'_ _I_ . --_ _,.. (v-0) o
CONN - _ 37 <
KTS LAMP "LG (4) 23./ (BK-O) _(2} LG _ __ 14 < (BR- BK) rL9
L (4) _ 12< (O-B.K) @L4 _ 17/,,, (O-Y)
LG _ 40 < (BK-S) _(_ LG _ I0_ .
L (6) __ 18 • (G-Y) (_ L6 16 • (G-R) ___,i 2
CLIP NO, (2) 6 PU ---_ EXCLUSION
(i)
__ 26 < (W-BE) . ._T X • (W-BE)
' _ 7 < V__ v _ " TABLE A
o--<1--<,
(6)
""_ 16 z' (BL-Y) "(_¢bR v L2t (BL) LS (BL)
(6)
I "-_ 48 < (V-G) ::- (NOTE _) (_.,_-t ....
L (2) _ \
L (5)
""0_ 15 < (S-BK) (_L5
(5)"
SPEAKERPHONELK ,,50, _. (S)
fAI-B ,., 4,, / (O-W) ,.._ IB PU LI t (y)
',;,-.(,) __."--"-" _< (w-o)..... _-,. M......
' - _ 27 _ -
; A-H (2) _ 30 ...... (BR)
,_A-H(3), _ 33
1A1 1A?
6A OR _B : A-H-S-
, Sl (4) ,.21 / (BK-BL) _4H v.. (BR)
KTS h -- _ 36 _ ..... -..
LEAD A- H- S-
CONNS SI (5) _ 39 (' (BK- BR) , , (_SH X (Y')
SPEAKERPHoNE '_AG 49_ . (V- S)
A-H-S-
Sl (6}
....--_ 42 <- (Y-O) ..... q_¢6H v/x
................... _ ,50 • H IB RINGER
BL _BUSY LAMP ..... 4 4 < (Y- BR ) . . . (2)I
IR-_RI... _ 20< (S-Y) RR (S) STRAP I A
L_-R' _._--o--<<(Y-S) ............ K,
..... 365on
MTG CORD (_ 5 .... !V) ,
38 z
31 .
(Y-BL)
49 ( (V- BR) .... (_ 8
6z (BL-R)
, , Z (S-W)
25< (s-v) Q
............ _ ........ t
_6
Ix - - (G) (_/ v]"
L2 R _ 21 • (BE-V) _)ER
(_' EXCLUDED \
SPARES II
' ' __O'-'-Q---_ 5\
...........
(BR-BK)
....... (NOTES 4, 5 AND 6)
TPART OF 636B KEY LS (G-W)
H-
......... EPARATEL¥) TO
,
,/.-_ |
(0)
(BL-BK)
<IF-'--'-,
- SG
EH
7
o
LS
• Fig. 2--1_2565GKMS Telephone Set, Connections (Sheet 1 of 2)_1
Page 6
Page 7
ISS 7, SECTION 502-543-403
.(o__,) i----_-- -;-,,_o;-,_,,_o_ -- -- --I
(G-W) I s v t I H4DU
(V) .... 1 ,. _. , A' I I (R ) T "t (R) ..lACK CORD _LIR)7__.. HANDSET
v
_- 616D HANDSET GISA .
I i ..e . << >
I (B L) . (El, (BK) . / < _, >/_/(BK)_ ._ TRMTR
I e v I
I _' " * I °• I !("-_). ,,. (*) << __>>.*_-_,,cv,,
_ v [
F_o. I I (R) LS
I ylz A R
• (o) ,1, , ,
I I i i t"_: T I GN
I
L ............ _j _ _
NOTES.
I. 66E- TYPE CONNECTING BLOCK SHOWN. MOUNTING CORD MAY BE PLUGGED
DIRECTLY INTO AN A25B CONNECTOR CABLE. COLORS AND PIN NUMBERS
FOR CONNECTOR CABLE ARE SAME AS MOUNTING CORD
2. IF EXCLUSION FEATURE IS ADDED CONNECT SNITCH LEADS PER TABLE A.
5. WHEN A SPEAKERPHONE IS INSTALLED CONNECT (G-V) MOUNTI NG CORD
LEAD TO TERMINAL N AND (V-G) MOUNTING CORD LEAD TO NETWORK
TERMI NAL G. ALSO REMOVE (G) LEAD FROM NETWORK TERMINAL L2 AND
CONNECT TO NETWORK TERMINAL F
4. FOR BR IDGED R ING I NG ON ANY LINE US ING H IB RI NGER, REMOVE (S)
STRAP LEAD FROM RR (KEY TERMINAL BOARD) AND (BK) RINGER LEAD FROM
RT (KEY TERMINAL BOARD) AND CONNECT TO RING AND TIP RESPECTIVELY
OF L INE INVOLVED
5. IF CAPACITOR IS NOT REQUIRED IN RINGER CIRCUIT, MOVE (R) RINGER
LEAD TO TERMINAL A OF NETWORK.
6 TO SILENCE RINGER PERMANENTLY REFER TO APPROPRIATE SECTION IN
DIVISION 501
LS- LINE SWITCH
PU- PICKUP KEY
,- INSULATED AND STORED
t- NETWORK TERMINAL. UNDESIGNATED TERMINALS ARE ON KEY TERMINAL BOARD"
t
Fig. 2--1_2565GKMS Telephone Set, Connections (Sheet 2 of 2)i
Page 7
Page 8
SECTION 502-543-403
L .
LK I ,50 LI t MODIFICATIONIAI IA2 6A
C < 25 z (S-V) (_ ($) OR 6B KTS ' ' '
161,162, AI-B 4 (O-W) _ (Y) b LEAD FROM TO6A OR6B " < 2 • LS '
KT_I WIRED (SEE(BR) , M, I
FOR BUSY BL NOTE)37 (Y-BR) (BR) § (V-S) M I
LAMP 533K DIODE
C < 44 / ,,,,
AG t 49 M I TO M
/ z (V-S) § OR EQUIV
\ 50 \ _ (2) (ORDERED
SEPARATEI.Y)
• LK t 50 (S-V) (S) MODIFICATION IA KTS
.... ¢ <z5< _ a
IA KTS c / 19 ( LS (Y) 18 SG
WIRED FOR 37 t
BUSY LAMP BE (Y-BR) _ (BR)§ (BR) M I
NOTE' f NETWORKTERMINAL.UNDESIGNATEDTERMINALSAREON KEY TERMINALBOARD.
G-SG 38 (BR-Y) @ (Y) § b LEAD FROM TO
o <44( .,
AG t 49 --/ (V-S) M i
, , o < 50 .z (v-s)§
FORADDITIONALCONNECTION # 3-TYPE (MD) SPEAKERPHONELEAD
INFORMATIONONSTATIONBUSY
LAMP,REFERTO SECTION § LEADSINVOLVEDIN MODIFI CATION
502-110-100. LS- LINE SNITCH
Lit ..........
I
Fig. 3--I_Station Busy Lamp Circuit with 3-Type (MD) Speakerphone_l
I
Page 8
Page 9
ISS 7., SECTION 502-543-403
LEAD 66-1 YPI ( ) TELEPHONE
DES IG CON_ Ell I SET
(NOT! I
i LIt (S)
A, __< i (o-w) _! v , _ , - -_i a
-- 2< ,_) A, ¢W-BR) <5o" ¢W-BR)X_ S
, _ A_ (w-o,) <_< (w-o)_ ___
__ 0--< _,4 L ., ,
BL 37 " (Y-BR) /
(NOTE 2)
,, ,
MODIFICATION IAI,IA2,6A, OR 6B
(BR) M I I. 66-TYPE CONNECTING BLOCK SHOWN. MTG
(W-O) M I CONNECTOR CABLE. COLORS AND PIN
533K DI ODE
OR EQUIV I TO M AS MTG CORD.
(ORDERED 2, FOR ADDITIONAL CONNECTION INFORMATION ON
SEPARATELY) STATION BUSY LAMP, REFER TO SECTION
S-V LI -K-
v-s M 'w.
A. 1A1,1A2,6A, OR 6B KTS WIRED FOR BUSY LAMP WITH M16C (MD) OR M16H CORD TERMINATED IN TEL SET
KTS
LEAD FROM TO NOTES"
CORD MAY BE PLUGGED DIRECTLY INTO A25B
NUMBERS FOR CONNECTOR CABLE ARE SAME
502-110-100
•
oEs,G _ (( co_,_.KI m_:coRo! set
L,AOr iI 1 ' 'i6"'I''' ' 'EL' "ON'
• _ ) 50 Lit (S)
AI
I
, 2 ' : ' LS
_B L
(NOTE 2) 'I
MOOI-FI CAT I ON IAI ,IA2 6A, OR 6B
--- '# NETWORK TERMINAL,uNDEsIGNATED TERMINALS
LEAD FROM TO ARE ON KEY TERMINAL BOARD
....
(BR) M I ,:I::161A ADAPTERS REQUIRED TO CONNECT MI6C (MD) OR M16H
(V-S) M I LS LINE SWITCH
533K DIODE ITO M
OR EQUIV
(ORDERED
SEPARATELY)
B IA1,1A2,6A, OR 6B KTS WIRED FOR BUSY LAMP WITH MIBC (MD) OR MI6H CORD TERMINATED AT 66-TYPE CONN BLK
13 AI (W-BR) (W-BR)
C_ AG (W-O) (W-O) 49
.....
KTS * INSULATE AND STORE
..... _ \ I #n._-I - I_B (y, b--_
Fig. 4--)Station Busy Lamp Circuit with 4A Speakerphone (Sheet 1 of 2)41
\ , .... _.,0--<25 _ S'V) '-'' O
<_- _!! __o
' 37
CORD AT 66-T YPE CONN BLK
' (NOTE_) ! !
I 0---_44 ._
®
Page 9
M
Page 10
SECTION 502-543-403
LEAD 66-T rP ) TELEPHONE
DES IG CONN B , J SET
SEE N )T
Lit (S)
I ! " " ' 'W-BR) ' "' ' (W-BR) ";_ ' - o..... ,) < , , (Y) S
37
BL
_ _ 0-..-_,_ 4 / ,,
(
MODIFICATION IA KTS
.........
LEAD FROM TO NOTE :
(Y) I B SG 66-TYPE CONNECT I NG BLOCK SHOWN. HTG
(BR) M I CONNECTOR CABLE. COLORS AND PIN
..........
• (W-O) , M AS HTG CORD, , ,
(S-V) Lit *
(v-s) M *
........
(W-BR) Ie SG
....
Y-BR
) /
.......
.... CORD MAY BE PLUGGED DIRECTLY INTO A25B
I NUMBERS FOR CONNECTOR CABLE ARE SANE
A. IA KTS WIRED FOR BUSY LAMP WITH MI6_ (MD) OR MI6H CORD TERMINATED IN TEL SET
(w-o) <,_< ¢w-o) __ (..)
LEAD 680-TYPE D85 I i ( I ( ) 66-TYPE mososm TELEPHONE
CONNBL_! .T_CORO! SET
iO m mLit (S)
3 LK (0. *) [, I .>-<25_ ..... 1o
G-SG ....... _19 "...... (Y) ILS
Page 10
10 Pages
,0 ,,, ,,
• MODIFICATION IA KT$ * INSULATE AND STORE
I LEAD FROM TO ARE ON KEY TERMINAL BOARD
.....
(Y)
(BR) M I LS LINE SWITCH
IB
(v-s) M I
(O-W) IB SG
B. IA KTS WIRED FOR BUSY LAMP WITH MI6C (MO) OR M16H CORD TERMtNATED AT 66-TYPE CONN BLK
Fig. 4---I_Station Busy Lamp Circuit with 4A Speakerphone (Sheet 2 of 2)(I
.1
f NETWORK TERMINAL. UNDESIGNATED TERMINALS
SG 4: 161A ADAPTERS REQUIRED TO CONNECT MI6C (MD) OR MI6H
•
CORD AT 66-TYPE CONN BLK_
o-<5o_
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