Comdial Maxplus Service Manual

DIAL

Business Communications

Division

Single and Multiline

Telephones

(MAXPLUS, MAXKEY, SLENDERET DELUXE

& 256412565 SERIES)

Wiring Diagrams

IM I

.’ March, 1984

1 O-002

IMI lo-002

March, 1984

WIRING DIAGRAMS FOR THE MAXPLUS, MAXKEY,

SLENDERET DELUXE, AND 2564/2565 SERIES OF TELEPHONES

PUHLICATION INDEX

SUBJECT
INTRODUCTION

GENERAL INFORMATION.......................................l

DRAWING INDEX . . . . . . ..eeea....*.....*.*..........e......... 2

The purpose of this publjcatjon js to present wjrjng djagams for

fjeld service use. Covered herejn are wjrjng djagrams for the

MAXPLUS, MAXKEY, SLENDERET DELUXE, and 2564/2565 serjes of

telephone sets.

Additional technical literature and in depth servjce support are

avajlable by calljng (800) 446-7661, or jn Vjrgjnja: (804)
978-2288.

Comdjal telephones have a fjnal jnspectjon nameplate applied to

the bottom of the housjng. Thjs nameplate jnformatjon includes
the model number of the telephone. This model number appears jn
the drawjng jndex of this publjcatjon to cross reference to the

proper wjrjng diagram for the associated telephone set. A *

symbol js shown jn the jndexed model numbers. It. js used to

jndjcate the locatjon of an jdentjfjcatjon code jncluded jn the
actual model number found on the telephone set. This code
denotes specjal features of the telephone set.

. ..e..*.......*............................... 1

INTRODUCTION

GENERAL INFORMATION

PAGE NO.

The drawjng jndex js arranged so that the telephone model numbe

are ljsted jn ascendjng alpha-numerjc order under the varjous

functjon headjngs to aid jn jnjtjal lookup. The actual wjrjng

djagrams are fjled jn the book jn an ascendjnr
based uponhe number assjqned to the drawjng. Thjs order is

followed to ajd jn the locatjon of the desjred drawing.
To use the index, obtain the telephone model number from the

jnspectjon nameplate. Locate that number in the model number

column.

column. Locate the wjrjng djagram drawjng jn the drawjngs

section of thjs publication.

Note the specified wiring diagram in the drawjng number

-- ---

--

1

numeric order

rs

IMI lo-002

DRAWING INDEX

OLD MODEL NEW MODEL EQUIPMENT DRAWING
NUMBER NUMBER DESCRIPTION NUMBER

TELEPHONES, SINGLE LINE

*Single Ljne Slenderet Deluxe

2300-*-*-*

2354-

*Single Ljne MAXPLUS 3525 Series

3525D-C-W-*-* 3525-*-CM-900M
3525D-C-W-B-* 3525-*-CW-907~
3525S-C-w-BY-" 3525-*-CW-979s

3525D-C-W-BY-* 3525-*-CW-979M TAP, MESG.WAITING (9OV) 727220-000 Sh. 1

l

Sjngle Ljne MAXPLUS 3625 Serjes

3625-*-CW-900M STANDARD
3625-*-CW-907M TAP 727827-000 Sh. 1

I

l 5-Line 2564/2565 Serjes

2564-*-CW-900M

2564-*-CW-907M
2565-*-CW-900s
2565-*-CW-902s

*-*-*

TELEPHONES, KEY SYSTEMS

STANDARD DESK
STANDARD WALL

STANDARD 727500-000 Sh. 1
TAP 727020-000 Sh. 1
TAP, SPEAKERPHONE CONN.
MESSAGE WAITING (9OV) 727260-000

STANDARD 703510-000 Sh. 1,2

TAP 703510-200 Sh. 1,2

SPEAKERPHONE CONN. 703510-100 Sh. 1,2

SPKR. CONN., EXCLUSION 703510-100 Sh. 1,2

703021-100 Sh. 1
703021-100 Sh. 1

Sh. 1

727500-000 Sh. 1

I

l 5-Line MAXPLUS 3528 Series

3528D-C-* 3528-*-CW-900M STANDARD 703802-500
3528D-C-* 3528-*-CW-907M TAP 727427-000
3528S-C-* 3528-*-CW-900s

3528S-C-*

3528D-C-* 3528-*-CW-937M FOR SAN-BAR SB6660 KSU 703802-600 Sh. 1,2

l

5-Ljne MAXPLUS 3528 Serjes wjth Call Announce Speaker

3528-*-Cw-907s

3528-*-CW-938M STANDARD 727707-000 Sh. 1,2
3528-*-CW-939M TAP 727727-000 Sh. 1,2
3528-*-Cw-938s SPEAKERPHONE CONN. 727747-000
3528-*-CW-939s TAP, SPKR. PHONE CONN.

SPEAKERPHONE CONN. 703805-210 Sh. 1,2

TAP,

SPKR. PHONE CONN. 727467-000 Sh. 1,2,

727767-000 Sh. 1,2

Sh. 1,2

Sh. 1

Sh. 1,2

Continued

Drawing Index-continued

IMI 10-002

OLD MODEL NEW MODEL EQUIPMENT
NUMBER NUMBER DESCRIPTION

TELEPHONES,

@ MAKKEY 3519 Series

3519-lY-CT-9OOM STANDARD

TELEPHONES, HANDSFREE

l Maxplus 3644/3654 Series

3644- *-*-*
3654- *-*,* STANDARD WALL 726176-000

ELECTRONIC KEY SYSTEMS

STANDARD DESK 726176-000 Sh. 1

DRAWING

NUMBER

703801-550 Sh. 1

Sh. 1

3

COMDIAL TELEPHONE SYSTEMS
SLENDERET TONE DIAL TELEPHONE

WITH “A” LEAD CONTROL

(2300 SERIES)

CONNECTING DIAGRAM

jM4WZ;IO N

IDGED RINGING

RING k)

-- -­3ING PARTY

TIP(+) / & IG)(

-mm
TIP PARTY

Al

-7

1 C ONB;i;;OR
I

R

n

IW

1 &

--

t-

I

Y

VJ

(RI< RING (-)

(Y)

PLUG BASE

ADAPTER

I

,

t’

I

I IQ

r:

+ TAPE AND STORE

-

RINGER

BASE

LINE SWITCH

I la I

I

i I b-4

HANDSET

RECEIVER TRANSMITTER

I

RECALL

I

Ii I

IR) A I

2

I

I

!

--__-__- ---m-

I
I

m

I. GROUND t&Y BE OMMITTED IF NOT REQUlRED FOR SERVICE.

2. TO PERMANENTLY SILENCE RINGER. REMOVE RINGER LEAD FROM K, INSULATE AND STORE.

3. MOUNT CAPACITOR SUPPLIED WITH RINGER BETWEEN A AND K TERMINALS. BE SURE THE
CAPACITOR DOES NOT INTERFERE WITH RINGER GONG.

4. FOR DIVIDED RINGING, CONNECT RINGER (BK) T6 3.

5. THE STANDARD LINE CORD (IF SUPPLIED) CONTAINS (2) CONDUCTORS,R AND G;

A FOUR CONDUCTOR LINE CORD MUST BE USED IF ‘A” LEAD CONTROL IS DESIRED.

-

703c 0 ISSUE NO.

r-

I

2564 6-BUTTON KEY TELEPHONE (STANDARD)

35A-15 DIAL

h

-

I I

NETWORK

I

I

I

HOOKSWITCH

ON HOOK

I

I

. I I

I

I I

TERMINAL

BOARD

k---l

I

HANDSET

i L

-

-

-

I

SIGNAL

I

----I

I

I
I

I

I I

I

i

I

] G(T)

I

, S-Y(R)

j-G(AGI

I I

I

#5 TAPED

(1) CONNECT STATIC SHIELD TO TERMINAL 1B.
(2) BUSY LAMP OPERATION: 24 VDC - REMOVE S-G WIRE FROM TERMINAL N AND CONNECT TO TERMINAL 25. REMOVE TELEPHONE MOUNTING

CORD WIRE 44 FROM TERMINAL 26 AND CONNECT TO 25.

18 VAC - REMOVE S-G WIRE FROM TERMINAL N AND CONNECT TO TERMINAL 25.
(3) CONDUCTOR COLORS: BODY FIRST, TRACER SECOND.
(‘I) CONNECT AUDIBLE SIGNAL (USING STANDARD RINGING VOLTAGE) AS SHOWN IN WIRING DIAGRAM. EXCEPTIONS: WHEN CAPACITOR IS

NOT REQUIRED, WIRE ONE SIDE OF AUDIBLE SIGNAL TO TERMINAL "A" INSTEAD OF TERMINAL "K" (EXAMPLES:

TONE RINGERS, Q-20 BUZZERS).

(5) TO DEFEAT POLARITY GUARD, TURN SCREW CLOCKWISE UNTIL SNUG,

INSTALL CR1 (703801-034) AND CR2 (703801-034).

INSTALL DIODE CR1 (703801-034).

FREQUENCY RINGERS,

AND STORED

I

I

PAGE 1

703510-000

ISS. NO. IA

HOLD POS.

LINE I

LH G-Y
.G

Y-G Y-G

I

bMi /

G-Y >

. >43LG

ISL

26T

LINE I

27 nors
3L
2SLG

4R

LINE 2

LINE 3

LINE 4

LINE 5

*

v
A

+ e BK-G

I
I

+

a

_ ER-SK
I EK-BR

S-BK

. BK-S

G-SK

W S-R

I

DX

4T R-S R-S

I

I

30 nors
6L

S-R

I

>IOR

>35T I

LINE 4

LINE 2

TERMINAL BOARD -----+-

TELEPHONE MOUNTING CORD

I

I

I

+C TAPED AND Sl

703510-000

IS. NO. IA

2565 fj-BUTTON KEY TELEPHONE (SPEAKERPHONE, EXCLUSION OPTION )

35C-15 DIAL

n 3(RIl
u

n4
u

I I

NETWORK

I

LI

I

3

I

!
I

I

I
I

I

I

I

\

I A

HOOKSWITCH

ON HOOK

I

I
I !

I I

I I

TERMINAL

BOARD

I - I

I

I
I

i y,-. 7

I -

I

i

I I

HANDSET 1

-

I

I

I i
I

I

i I

_ I

I
I

I

i

I
I

;(TI)
m(T)

(R)
K 031)

(RI)

-BRlAG)

;-Y(AII

N (IR)

I

D-C: I

T -

NOTES:

(1) CONNECT STATIC SHIELD TO TERMINAL 1B.
(2) DESIGNATIONS IN ( ) FOR SPEAKERPHONE CONNECTIONS.
(3) TO DEFEAT POLARITY GUARD, TURN SCREW CLOCKWISE UNTIL SNUG.
(4) BUSY LAMP OPERATION: 24 VDC - REMOVE S-G WIRE FROM TERMINAL N AND CONNECT TO TERMINAL 25. REMOVE TELEPHONE MOUNTING

CORD WIRE 44 FROM TERMINAL 26 AND CONNECT TO 25.
REMOVE S-G WIRE FROM TERMINAL 26 N AND CONNECT TO TERMINAL 25. INSTALL CR1 (703801-034)

AND CR2 (703801-034).
(5) CONDUCTOR COLORS: BODY FIRST, TRACER SECOND.
(6) CONNECT AUDIBLE SIGNAL (USING STANDARD RINGING VOLTAGE AS SHOWN IN WIRING DIAGRAM.

REQUIRED, WIRE ONE SIDE OF AUDIBLE SIGNAL TO TERMINAL "A" INSTEAD OF TERMINAL "K".
RINGERS, Q-20 BUZZERS).

(7) EXCLUSION AND SPEAKERPHONE LEADS NOT ASSOCIATED WITH THESE FEATURES MUST BE DISCONNECTED, INDIVIDUALLY TAPED AND STORED

WHEN TWO OR MORE TELEPHONE SETS ARE CONNECTED IN MULTIPLE THROUGH CONNECTING BLOCKS OR BRIDGING ADAPTERS.

(8) TO DEFEAT POLARITY GUARD, TURN SCREW CLOCKWISE UNTIL SNUG.

I

i

I I

I I

INSTALL DIODE CR1 (703801-0341, 18 VAC

EXCEPTIONS: WHEN CAPACITOR IS NOT

(EXAMPLES: FREQUENCY RINGERS, TONE

REC 1

II

I
I

t

i
I

I

I

-- -I

(9) AN 8-24 VAC BUZZER (Q-20, 703015-729) CAN BE MOUNTED INTERNALLY AND CONNECTED TO RINGER LEADS OR TO SPARE (Y-0 AND

PAGE: I

0-Y) PAIR AS REQUIRED.

703510-100 ISS. NO. IB

SPEAKERPHONE

CONNECTIONS

G-W (IR)

HOLD POS

LINE I

LINE 2

LINE 3

I8L
43LG

26T

27Ao1
3L
ZBLG

29T

30 no,
6L
31LG

7R

32T

33AorS
9L

34LG

LINE I

rS

1

LINE 2

,S

1

LINE 3

1

‘AGE 2

LINE4

LINE.5

*
\r
A

TERMINAL BOARD -

TELEPHONE MOUNTING CORD

G-BK I

LINE 4

I

s,R G-BK

5T BK-G

5,H BK-BR

L_5

S-W

L& BK-S

$y+>; * TAPED 8 STORED

,-I- ! BL-BK> ,,

--- .

I

/ L

G-BK

BK-G

F38T

EK-BR>39 AO,
s-m > 15L

I BK-S

_ >4OLG

Y-BR 44

i

>13R

LINE 5

S

703510- 100 1%. NO. IB

2564 6-BUTTON KEY TELEPHONE (TAP)

358-15 DIAL

_ BL

4-l

BK

I I

NETWORK

! I

HOOKSWITCH I I

ON HOOK T&E2ZAL

I

---I--?

1 S-G -tAGI 1
I . I I

I

! t-

S-BR- 1

L---I

31

IOn

2W

I I

I
I

I

I

HANDSET

I

I

SIGNAL

I

----I

i

I I

I

.

J-W,Al,

i

S-G(AG)

i a
I

I

.

1 S-R
I - ,

I

I

REC

I

I

&I

I I

"3
u

1-i

I

I

NOTES:

(1) CONNECT STATIC SHIELD TO TERMINAL 1B.

(2) BUSY LAMP OPERATION: 24 VDC - REMOVE S-G WIRE FROM TERMINAL N AND CONNECT TO TERMINAL 25. REMOVE TELEPHONE MOUNTING

CORD WIRE 44 FROM TERMINAL 26 AND CONNECT TO 25.

18 VAC - REMOVE S-G WIRE FROM TERMINAL N AND CONNECT TO TERMINAL 25.
:3) CONDUCTOR COLORS: BODY FIRST, TRACER SECOND.
(4) CONNECT AUDIBLE SIGNAL (USING STANDARD RINGING VOLTAGE) AS SHOWN IN WIRING DIAGRAM.

NOT REQUIRED, WIRE ONE SIDE OF AUDIBLE SIGNAL TO TERMINAL "A" INSTEAD OF TERMINAL "K" (EXAMPLES:

TONE RINGERS, Q-20 BUZZERS).
(5) TO DEFEAT POLARITY GUARD, TURN SCREW CLOCKWISE UNTIL SNUG.

I

GN

B

I

I

I

b26 1

i I

INSTALL CR1 (703801-034) AND CR2 (703801-034).

INSTALL DIODE CR1 (703801-034).

EXCEPTIONS: WHEN CAPACITOR IS

FREQUENCY RINGERS,

-- -l

I

I

I
I

I
I

I

I

PAGE 1

703510-200 ISSNO.

IA

HOLD POS

LINE I

2 Al

18L

43LG

26T

LINE I

27 AorS
3L
28 LG

4R

LINE 2

LINE 3

LINE4

LINE 5

29T

LINE 2

30 AorS
6L

32T

LINE 3

33AorS
9L

I

LINE 4

LINE 5

TERMINAL BOARD .------

TELEPHONE MOUNTING CORD.+’

‘-’ >42

IU/ I #C TAPED AND STORED

STATIC SHIELDS

1 7 p3

KEYSTRlP

0

e!9

SPEAKER

NOTES:

I. FOR SCHEMATIC, SEE CS706120.

2. HEAVY LINE ,ND!CATES TRACER ASSOClATED W!TH PIN I
ON ,NTERBOARD R!SBON CABLE. OBSERVE POLAR!TY AS SHOWN.

3. USE OF COMPANLON I! SPEAKERPHONE REWIRES A JUMPER
BETWEEN TERMlNALS GZ AND Cl.

4. “SE OF AN ADJUNCT SPEAKERPHONE REWIRES CUTTING
STRAP 4A. STRAP 4A MUST SE RECONNECTED UPON
REMOVAL OF SPEAKERPHONE.

5. FOR LONG LOOP CONDITIONS. A LOCAL POWER TRANSFORMER

,COMO!AL PART NO. 703508-2531 MAY BE REG”!REO.
!NSTALL AS SHOWN. “SE OF TRANSFORMER REG”!RES C”TT!NG
STRAP LP: STRAP MVST BE RECONNECTED UPON REMOYAL
OF TRANSFORMER.

TO HANDSET

!CoMo*AL
CODE

KBXM ONLY!

r

TO AS 3+iF
TO A8 *KS
TO A7 ,5-y!!
TO AS +KC
TO AS D=%-AG

TO CZ d!.K

----------7

SPEAK%PHONE 1

ELECTRlC OR ’

PREC!S!ON 1

CO~~!M$NTS ,

!NCLUD!/IG 1

PC18ZA BLOCK ,

L------------,

!WESTERN

I
I

-TO P4.

LOWER PWB

LlNE

JACK

J

41

-J

KEYSTR!P

110 “AC TO 24 “AC
CENTER TAPPED
TRANSFORMER
(WHEN PROYlDEDl
SEE NOTE 5

1

W-BL r-----

TOA6 +TI

TO A8 -05 co~%?:i ,I ’
TO ~7 -R, SPEAKERPHONE

TO AS -MB5
TO AS $&+A,

6 TO 02 -Al

NORTHERN ,

-------7

s

<TO “I

1 KERPHONE (SEE NOTES3d41 CONNECTlONS FOR SPI

;
I

I
I

I

703801-550 ISS. I6

c TO Gl

3528D 6 BUTTON TELEPHONE

DIAL AND HOOKSWITCH
NETWORK

r--l

L-i

STATIC SHIE

1 HANDSET 1 ON HOOK 1 SIGNAL 1

SEE NOTE 4

0-W

O-Y

I ’

I I

’ hOOULAR JACKS AND

CORD WHEN SO EQUIPPED

I ! r

LEGEND

,025 SQUARE PIN

n

r--,

(PLUG COLOR); > 4-WIRE RUG

703802-500 ISSUE NO. 4

‘Y­lItI-

L-3

PWB RECEPTACLE

II

SPADE TERMINAL

>

--­SLEEVEDANDSTORED

I-

---

_

KEY

,

o-w I

O-Y
Y-O

“D
IM

:D­&GE

Y-S

.

DK a

3

----- SEE NOTE 3

@--;--:I; Y-BR j

I

a

(,PINK )

1 LINE CORD 1 CONNECTOR

I

SHUNl’S b

o-w I

Y-S I

SEE NOTES 1

I AND2

BR-Y 1

G-Y
Y-G

EXTERNAL

CABLE

I

>2 AI

I

45 B

)

I

* o-w

+ O-Y

t-- Y-O

+ R-BL
+ R-BR

+ BK-0
+ BK-S

+ W-G

+ S-Y
* Y-S

I

19 SG

>

44 BL

18 HL

>

43 HLG

I

+--- BL-@

LNI

--

” ~-::::I; -- - - - - -- - -

;4p;-----F:!----------.-

I

4-e-- ______________ ““‘““+A 1

/‘~4~--~:~-4’----------.-&-----~~;

4,-- ___ -------A

~~~~--~-__r_--------~~B /

w - - -- -- -’ - - - - -.

&---&....+ ______ --w---$8” /

- --_--

------ --­0

- -- (IVORY)

4,

_--_-____-

l

------t

-------I

I ,

I I

IC , R-O !
I

78 I

L-d

r-3 D

ia i
11,
I

I ic 1

IA

r-3 D
,?@I I

1

+ BR-W

j----- W-BF;

LN2

* w-s
+ BL-R

I

+ O-R

I

> 32 T

I

R-G I
BR-R ,

I

I

I

S-R I

R-S I
BK- BL

0-BK

> 33 A
>9 L

I

)I0 R

I

>35 T
> 36 A

1

)I2 L

+ R-O

LN3

+ R-G
>-- BR-R

1

)-- S-R

e R-S

LN4

)-- BK-B

+ 0-Bb

1

G-BK I

BK-G I

BK-BR !
S-BK /

)I3 R

I

> 38 T

1

39 A

15 L

LNS

i

J

703802 -500 ISSUE NO. 4

DIAL AND
NETWORK

3528D-6 BUTTON TELEPHONE

HOtO$W;;;H

HANDSET

I

I

H

d

S I GNAL

I

I

I

I

I

LK

lm

I

+7HtSs

AND CORD WlnW
SO EQUIPPED

REC

1 -

I

I

I

f 1

e

I

I

NOTES:
I. TO CONVERT LINE 4 PICKUP KEY TO SISRALINS.

RENOVE SCREW FROM KEY PLUNSER TO MAK2
KEY NON-LOCXINO. AN0 MOVE SHUNT ON KEY
$flN-$~4WRINS BOARD (PWB) FROM POSITION

I

j

2. TO CONVERT LINE 5 PICKUP KEY TO SISNALINS.
REMOVE SCREW FROM KEY PLUNSER TO MAKE KEY
NON-LOCXINS. AN0 MOVE SHUNT ON KEY PWB FROM
POSITION SP TO POSITION 58.

I
l 3. TO CONV2RT LINE 5 PICKUP KEY TO SROUNO

TRANSFER BUTTON. R2MOVE SCREW FROY KEY
PLUNSER TO MAKE KEY NON-LOCKINQ AND CONNECT
BLACK LEAD FROY KEY PWB TO R. STORE SHUNT 5
ON A SINSLE PIN (SO THAT NEITHER SS NOR 5P

~ A; C~@3787L CONNECT BK-BR Ll30 TO SROUND

I

4. WIRINU FOR USE WI171 A BUSY STATION NUNBER DISPLAY:

A 24 voc LAW%

I

NOVE 0 LEA0 FROY SCREW T2RWINAL 82 ON KEY PWB TO 81.

AN0 A00 DIODE 202252-138 As SHOW

I

n

.023 SOlIME PIN

EIJ
13-i

4-WIRE PLUG

I)1

L?-.J

(PLUO COLOR)

PWB REC2PTACLE

II

SPADE TERMINAL

3

m--e

TAPE0 B STORED

3

_--_

I I

703802-600 ISSUE NO. I

I

8. IS VAC MS:
REMOVE ORANSE LEAD BETWEEN TERMINAL SP AND

RECEPTACLE AS. ADO DIODE ASSEYBLY 206012-954 AS SHOWK

KEY

BL-V

o-v

I

BR-V
SL-v
V%L
v-o

V%R

v-SL t v-SL I

o-w
O-Y
Y-O

0

92 (SEE NOTE 4)

Y

LINE CONNECTOR

1 CORD 1

BL-V

I I

o-v .

BR-V 1

I

SL-V 1

V%L
v-o

I

V%R

o-w

I

O-Y
Y-O

I

O-R !

!

BR-BK

BL%K

EXTERNAL

CABLE _

)a

I --

) 24
)2s

) 46

I

, .­) 49
> 50

)e Al

I

) 17 BZ

I

> 4Z BU

)O

) 14

) II

I

b BL-V

- o-v
)-- o-v
+ BR-V
2-- SL-v

- V%L

- v-a

- v-o
j V%R
w v-SL

>- o-w

)- O-Y

WY-0

- O-R

>- BR%K

>- BL%K
>- s-w

-­)- S-Y

)- Y-S

7R

IO R

3s 1
36 A

re L

I3 R

>--- BL-W

LNI j R-O

LR4 >- R-S

I I

c

fa I 1-J I

I

L '

-

I, IA

u B S-BK 1

I

BK-BR I

1 I

703802-600 ISSUE NO. I

39 A
IS L

COMDIAL

3528s 6 BUTTON TELEPHONE

DIAL AND HOOKSWITCH
NETWORK HANDSET

r---l

ON HOOK I SIGNAL

1

I

STATIC SHIELD

,

1_

I d

E3/1

ID

I

e

I I I

I

I

I

RINGER

R

SEE NOTE 4

I

Y-S

J

LEGEND:

-025 SQUARE PIN

m

r4
II-1

*-WIRE PLUG

131

L?l

(PLUG COLOR)

PWB RECEPTACLE

ml

SPADE TERMINAL

I-

----

SLEEVED 8 STORED

I>-

----

( 1 DENOTES EXTERNAL SPEAKERPHONE
CONNECTIONS

/

I
I

(RI)

II

I I

703805-210 ISSUE NO. 3

MODULAR JACKS
AND CORD WHEN
SO EOUIPPED

I

I

I -

4

lk

NOTES*
I. TO CONVERT LINE 4 PICKUP KEY TO SIGNALING. REMOVE

SCREW FROM KEY PLUNGER TO MAKE KEY NON-LOCKING.

I

AND MOVE SHUNT ON KEY PRINTED WIRING BOARD (PWBI
FROM POSITION 4P TO 4s.

2. TO CONVERT LINE 5 PICKUP KEY TO SIGNALING. REMOVE
SCREW FROM KEY PLUNGER TO MAKE KEY NON-LOCKING.

AND MOVE SHUNT ON KEY PWB FROM POSITION 5P TO

j

POSITION 5s.

3. TO CONVERT LINE 5 PICKUP KEY TO GROUND TRANSFER
BUTTON. REMOVE SCREW FROM KEY PLUNGER TO MAKE KEY

NON-LOCKING AND CONNECT BLACK LEAD FROM KEY PWB TO R.

STORE SHUNT 5 ON A SINGLE PIN (SO THAT NEITHER 5s

NOR 5P IS CONNECTED). CONNECT BK-BR LEAD TO GROUND
AT THE KSU.

4. AN G-24 VAC G-20 BUZZER (703015-729) CAN BE MOUNTED

INTERNALLY. CONNECTIONS TO THE Y-O AND O-Y LINE CORD

I

LEADS AFtE MADE VIA TERMINALS 2 AND 3.

5. WIRING FOR USE WITH A BUSY STATION NUMBER DISPLAY:

A. 24 VDC LAMPS:

I

I

I

MOVE 0 LEAD FROM SCREW TERMINAL 22 ON KEY PWB TO SI.
AND ADD DIODE 202852-138 AS SHOWN:

SZ-SI

8. I8 VAC LAMPS:
REMOVE ORANGE LEAD BETWEEN TERMINAL S2 AND

RECEPTACLE AQ, ADD DIODE ASSEMBLY 206012-254 AS SHOWN :

OS1

1 LINE CONNECTOR EX;;;~;I

CORD

%&Y

PRECED-

ING PAGE

o-w

O-Y

Y-O

0

G

R

S-Y

Y-S

S2 (SEE NOTE 5)

C@J-

3
3

3
3

3 * INDICATES OPTION

INSTALLED AT FACTORY

SHUNTS Y-S

o-w

O-Y

Y-O

I
1

G-R
BR-Bit

I

EL-BK
s-w

I

W-G
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) 31

> 34 )- R-WI

I

> 37 >- SK-0
? 40

I

) 26 LO >- W-G

>20 R
)45 B

IS SO
44 BL
16 HL
43 HLG

26 T
27 A

3L

LN, + W-BL

1

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>- SK-S

>- S-Y
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35 T
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12 L

13 R

36 T
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1

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>- R-G
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1

>- S-R

LN4 >- R-S

: :%I?

>- G-BK

LN5 >- SK-G

703805-210 ISSUE NO. 3

TELEPHONE WIRING DIAGRAM

I

NETWORK DIAL

G

%R 1

RR

[III3

-W

\ I I

RINGER

I I-

I

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ol

J3

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S-Y

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k

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BK I

Y

I

I

C

EZ

GN

R

F

c d

BL

G

5-W

BK

BK 1

S-G ,

1 0-BK
I

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I

R-G

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726176-000 ISSUE NO. 2

3525DB TELEPHOb 4 WIRING DIAGRAM

LINE

RING

----+CuIl~

TIP GI

->---t-------------------t-c

- >BKI

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HOOKSWITCH DIAL AND NETWORK

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COMDIAL

CT 3528D 6 BUTTON TELEPHONE (WITH TAP)

DIAL AND
NETWORK

r----l

HANDSET

HOOKSWITCH

ON HOOK S I GNAL

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STATIC SHIELD

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I I

Ill ’

SEE NOTE 4

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_--_

3

----

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O-Y

Y-O

0

S-Y

Y-S

/’

LEGENDi

n

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rd

13-l

4-WIRE PLUG

IPI
L3

[PLUG COLOR)

PWB RECEPTACLE

ll

SPADE TERMINAL

I-

-G-­j SLEEVED AND STORED

_---

1 DENOTES EXTERNAL SPEAKERPHONE

:ONNECTlONS

I

727427-000 ISSUE NO. 2

AND CORD WHEN
so EQUIPPED

TO CONVERT LINE 4 PICKUP KEY TO SIGNALING. REMOVE

SCREW FROM KEY PLUNGER TO MAKE KEY NON-LOCKING.

AND MOVE SHUNT ON KEY PRINTED WIRING BOARD (PWBI
FROM POSITION 4P TO 45.

TO CONVERT LINE 5 PICKUP KEY TO SIGNALING. REMOVE

SCREW FROM KEY PLUNGER TO MAKE KEY NON-LOCKING.
AND MOVE SHUNT ON KEY PWB FROM POSITION SP TO
POSITION 5s.

TO CONVERT LINE 5 PICKUP KEY TO GROUND TRANSFER

BUTTON. REMOVE SCREW FROM KEY PLUNGER TO MAKE KEY
NON-LOCKING AND CONNECT BLACK LEAD FROM KEY PWB TO R.
STORE SHUNT 5 ON A SINGLE PIN (SO THAT NEITHER 55
NOR 5P IS CONNECTED). CONNECT BK-BR LEAD TO GROUND
AT THE KSU.

4. AN 8-24 VAC G-20 BUZZER (703015-7291 CAN BE MOUNTED
INTERNALLY. CONNECTIONS TO THE Y-O AND O-Y LINE CORD
LEADS ARE MADE VIA TERMINALS Ml AND M3.

5. WIRING FOR USE WITH A BiJSY STATION NUMBER DISPLAY:
A. 24 VDC LAMPS:

MOVE 0 LEAD FROM SCREW TERMINAL S2 ON KEY PWB TO SI.
AND ADD DIODE 202852-138 AS SHOWN8

I

s2-sr

8. IS VAC LAMPS:

I I

l

I

REMOVE ORANGE LEAD BETWEEN TERMINAL 2.2 AND
RECEPTACLE AG, ADD DIODE ASSEMBLY 206012-254 AS SHOWN:

ml

I

o-w

KEY 1 ICONNECTOR EXTERNP

CABLE

o-w

)2 Al

b o-w

“~KlF

PRECED-

ING PAGE

w

>- Y-O

>- R-BL
>- R-BN

>- BK-0
>- BK-9

R

3 Z# INDICATES OPTION

S-Y

‘----BK 1 1 1 1 1

----

SEE NOT2 3

-

I I I II I

I

,, SEE

INSTALLED AT FACTORY S-Y

SHUNTS Y-S

r-=‘>ss

:>sp* SEE NOTES

I

- > 4s
:>4p*

NOTE 5
SI @

s B G-Y I

I= IA

I

1 I AND 2
I

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W-G

BR-Y

Y-BR I
Y-G

I

I

> 28 LO
)20 R
)45 B

>I9 SO
) 44 BL
)I6 HL
)43 HLG

IR

26 T
27 A

3L

LNI

>- W-G
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>-

>-- Y-G

b BL-W

>- W-BL

O-Y

G-Y

. I

q

14

4

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m ID S-R

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WA B 0-BK ’

rmyD G-BK

m c
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W-BR

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BR-R !

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R-S

I 1

BK-G

iA BK-BR 1

I I

4R

)29 T

30 A
61

:

7R

32 T

>33 A
)9 L

>I0 R

>35 T
)36 A

>I2 L

>I3 R

I

>3B T
>39 A

>I5 L

>- BR-W

)- W-BR

LN2

>- w-s
>- EL-R

>- O-R

>- R-O
>- R-G

>- BR-R

>- S-R

>- R-S

LN4

1

>- G-BK

>- BK-G

INS

1

727427-000 ISSUE NO. 2

CT 3528s 6 BUTTON TELEPHONE

DIAL AND HOOKSWITCH
NETWORK

i---l

I-

STATIC

HANDSET ON HOOK S I GNAL

I

I

1

EC

I! -I

:

r

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1

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M2

M3

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AND CORD WHEN

SO EOUIPPED

I
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I =

I

I

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a

1 b1

tk

I

G

I

I

LEGEND:

m .025 SQUARE PIN

rd
12-I

4-WIRE PLUG

I

IPI
L3

(PLUG

COLOR)

PWB RECEPTACLE

un

SPADE TERMINAL

I-

---_

SLEEVED AND STORED

I-

----

~O)N;~gfg;sEXTERN~L SPEAKERPHONE

R

S-Y

Y-S

I

I NOTES:

TO CONVERT LINE 4 PICKUP KEY TO SIGNALING. REMOVE

SCREW FROM KEY PLUNGER TO MAKE KEY NON-LOCKING.
AND MOVE SHUNT ON KEY PRINTED WIRING BOARD (PWBI
FROM POSITION 4P TO 45.

TO CONVERT LINE 5 PICKUP KEY TO SIGNALING. REMOVE

SCREW FROM KEY PLUNGER TO MAKE KEY NON-LOCKING.

AND MOVE SHUNT ON KEY PWB FROM POSITION 5P TO

POSITION 5s.

TO CONVERT LINE 5 PICKUP KEY TO GROUND TRANSFER

BUTTON. REMOVE SCREW FROM KEY PLUNGER TO MAKE KEY
NON-LOCKING AND CONNECT BLACK LEAD FROM KEY PWB TO R.
STORE SHUNT 5 ON A SINGLE PIN (SO THAT NEITHER 5s
NOR 5P IS CONNECTED). CONNECT BK-BR LEAD TO GROUND
AT THE KSU.

4. AN S-24 VAC G-20 BUZZER l703015-729) CAN BE MOUNTED
INTERNALLY. CONNECTIONS TO THE Y-O AND O-Y LINE CORD

LEADS ARE MADE VIA TERMINALS M2 AND M3.

5. WIRING FOR USE WITH A BUSY STATION NUMBER DISPLAY:
A. 24 VDC LAMPS:

MOVE

I AND ADD DIODE 202852-138 AS SHOWN:

I I

0 LEAD FROM SCREW TERMINAL S2 ON KEY PWB TO 2.1.

s2- SI

8. IS VAC LAMPS:
REMOVE ORANGE LEAD BETWEEN TERMINAL SZ AND

RECEPTACLE AG, ADD DIODE ASSEMBLY 206012-254 AS SHOWN:

727467-000 ISSUE NO. I

6. REMOVE STRAP BETWEEN TERMINALS KC AND KB WHEN
EXTERNAL SPEAKERPHONE IS USED.

KEY 1 LINE [CONNECTOR EXTERN,

CORD CABLE

o-w o-w

O-Y

?RNorMD

PRECED-

ING PAGE

Y-O

0 (SEE NOTE 5)

*’ “(P’NK) ’

4

SEE NOTE SEE NOTE 3 3

I I I I I II I

O-Y

Y-O

I I

BL-W

)2 Al

>I7 BZ >- O-Y

> 42 BZI >- Y-O

31
34

37
40

28 LG
20 R
45 B

19 SG
44 BL
18 HL
43 HLG L> 43 iLG

)I R

26 T
27 A

3L

>------- o-w

>- R-BL
>- R-BR

>- BK-0
>- BK-S

>- W-G
>- S-Y
>-Y-S

>-

>- Y-G

\

+- BL-W

L,,, +--W-W

: 1:;

1

G-Y

4R

29 T
30 A

6L

I I I I

O-R

\

,I

I4
I

4

(GREEN) 1 7 1 c R-O

r7 A R-G

-4 B BR-R ’

L”-l

I I

)7 R

)32 T
)33 A

)9 L

>- BR-W

LN2 - W-M

)- w-s

1

1

>- BL-R

>- O-R

LN3 >- R-O

>- R-G
>- BR-R

>- S-R

LN4 )-R-S

: :r;;

1

)------ G-BK

LNS >p BK-G

1

727467-000 ISSUE NO. I

3525D.3625D TELEPHONE WIRING DIAGRAM

COMDIAL TELEPHONE SYSTEMS

HOOK

:ONNECTOR , RINGER, HANDSET , SWITCH , NETWORK

TIP ?. 6 I

I

I

DIAL 35A-12

p!!W?
L--J

GRD IAl) ?.Yt

! I I

I I I I I

FOR ‘A’ LEAD CONTROL: CONNECT GREEN LEAD (AND BK RINGER LEAD)

TO *I ON TONE DIAL. BLACK LINE LEAD TO LI. AND SLATE-WHITE
HOOKSWITCH LEAD AND SHIELD LEAD TO ‘G’.

WARNING

THIS TELEPHONE TONE-DIAL@ GENERATES AND USES RADIO FREOUENCY

ENERGY. IF NOT INSTALLED PROPERLY. IT MAY CAUSE INTERFERENCE TO
RADIO OR TELEVISION RECEPTION.

THIS DIAL HAS BEEN TYPE TESTED AND FOUND TO COMPLY WITH THE LIMITS

FOR A CLASS B COMPUTING DEVICE IN ACCORDANCE WITH THE SPECIFICA­TIONS IN SUBPART J OF PART I5 OF FCC RULES, WHICH ARE DESIGNED TO
PROVIDE REASONABLE PROTECTION AGAINST SUCH INTERFERENCE IN A
RESIDENTIAL INSTALLATION. HIGHER LEVELS OF INTERFERENCE ARE
PERMISSIBLE IN BUSINESS INSTALLATIONS THAN IN RESIDENTIAL

INSTALLATIONS.

THERE IS NO GUARANTEE THAT INTERFERENCE WILL NOT OCCUR IN A
PARTICULAR INSTALLATION. IF THE DIAL SHOULD CAUSE INTERFERENCE TO
RADIO OR TELEVISION RECEPTION. INTERFERENCE WILL BE PRESENT ONLY
WHILE DIALING IS IN PROGRESS. IF THIS IS DETERMINED TO OCCUR, THE
USER IS ENCOURAGED TO TRY TO CORRECT THE INTERFERENCE BY ONE OR
MORE OF THE FOLLOWING MEASURES:

I

--REORIENT THE RECEIVING ANTENNA

--RELOCATE THE RECEIVER OR THE TELEPHONE

--USE A DIFFERENT BRANCH POWER CIRCUIT FOR THE RECEIVER

FOR FURTHER ASSISTANCE. CONTACT COMDIAL OR AN EXPERIENCED
RADIO/TELEVISION TECHNICIAN.

727500-000 ISS.NO.2

I

CTS 35280 - 6 BUTTON TELEPHONE

DIAL AND
NETWORK 1 HANDSET 1 ON HOOK SIGNAL

r---l
I I

STATIC SHIELD

Al

i

I
I I If I

I

l +q

HOOKSWITCH

I
I

I

I I

9 I

I

SEE NOTE 4

O-Y

r

I
I

I

I

MODULAR JACKS AND
CORD WHEN SO EQUIPPED

LEGEND

,025 SQUARE PIN

n

r--,

(PLUG COLOR)’

I

727707 -000 ISSUE NO. t

% 4-WIRE PLUG

i*
l--J

PWB RECEPTACLE

iin

>

SPADE TERMINAL

---

TAPED

I-

---

& STORED

AG

6. REF. CS706065

I-------

ONT’D

FROM
IECED­IG PAGE

KEY

,

o-w

O-Y O-Y I

Y- 0

s2 (SEE NOTE 5)

x oj-

w “,-\

!JdL

X INDICATES OPTION INSTALLED AT FACTORY 1

I

SEE NOTE 3

lb-------

(,PINK)

1 LINE CORD 1 CONNECTOR
I

I

I
1

I
I

I

I

o-w ,

Y-O I

G-R I

BR-BK 1

BL-BK 1

s-w I

W-G 1

S-Y

I
I

I

!
I

>2 Al

> 17 BZ
> 42 BZI

> 31
> 34

> 37
> 40

> 28~G

> 20 R
> 45 B

> 19 SG
> 44 BL

>I8 HL

> 43 HLG

EXTERNAL

CABLE

+-- o-w

t-- O-Y

L Y-O

+ R-BL
+ R-BN

+ BK-0
+ BK-S

+ W-G

+-- S-Y

* Y-S

+ G-Y

+ Y-G

,,_= ______ ----_---___---_- [:I”

v

h;*:---2! ____ -_--_- _.___ -----‘+IIC

I

4t _____ -._-_--__- ____ !??--$A

ry----------------------II”;R;)---iQi

”

&

.

I _____ ----------.--~

-- -

--

4)

4D

I

L-:

r-3 D

+ BR-W

+ W-BR

LN2 + w-s

+ BL-R

;

]
/

I

O-R !

R-O !
R-G I

BR-R ,

>7 R

> 32 T

I

>33 A
>9 L

+ O-R

LN3 ---’

)--- R-G
>-- BR-R

I

S-R I

BK-G 1

>I0 R

I

+ S-R

LN4 2-- R-s

>-- BK-BL
+ 0-BK

+Gc-BK

I

> 38 T

727707-000

ISSUE NO. I

o-w

M3

alD ’

DIAL AND ’
NETWORK

l--1

STATIC SHIELD

I

CT 3528D BR 6-BUTTON TELEPHONE

(WITH TAP 8 CALL ANNOUNCE1

H 0;;s;; ;;H

HANDSET

I

I

I I

I_

9

th

SIGNAL 1

0

I

I

1

l-----

I

\

o-w

O-Y

Y-O
0

I I

I I

1 I

(KM)

ml4
ml

(KC) uII

SEE NOTE 5

I

I

I

--(-g4D+;pil ’

MODULAR JACKS
AND CQRD WHEN

I

SO EQUIPPED

I

I -

If

d

0

I

I

R

S-Y

I -

Y-S

I

A

NOTE3

TO CONVERT LINE 4 PICKUP KEY TO SIGNALING. REMOVE

SCREW FROM KEY PLUNGER TO MAKE KEY NON-LOCKING
AND MOVE SHUNT ON KEY PRINTED WIRING BOARD (PWBI
FROM POSITION 4P TO 45.

TO CONVERT LINE 5 PICKUP KEY TO SIGNALING. REMOVE

SCREW FROM KEY PLUNGER TO MAKE KEY NON-LOCKING.
AND MOVE SHUNT ON KEY PWB FROM POSITION SP TO
POSITION 5s.

TO CONVERT LINE 5 PICKUP KEY TO GROUND TRANSFER

BUTTON. REMOVE SCREW FROM KEY PLUNGER TO MAKE KEY
NON-LOCKING AND CONNECT BLACK LEAD FROM KEY PWB TO R.
STORE SHUNT 5 ON A SINGLE PIN (SO THAT NEITHER 5s
NOR 5P IS CONNECTED). CONNECT BK-BR LEAD TO GROUND
AT THE KSU.

I

4. WIRING FOR USE WITH A BUSY STATION NUMBER DISPLAY1
A. 24 VDC LAMPS:

MOVE 0 LEAD FROM SCREW TERMINAL S2 ON KEY PWB TO SI.

AND ADD DIODE 202852-138 AS SHOWN:

I

S*- SI

8. 18 VAC LAMPS*
REMOVE ORANGE LEAD BETWEEN TERMINAL 52 AND

RECEPTACLE AG, ADD DIODE ASSEMBLY 206012-254 AS SHOWN :

--

LEGEND

m .025 SOUARE PIN

EJ

III-1

4-WIRE PLUG

IPI

L3

(PLUG COLOR)

PWB RECEPTACLE

El

SPADE TERMINAL

I-

_-_-

SLEEVED AND STORED

>

----

1 1 DENOTES EXTERNAL SPEAKERPHONE
CONNECTIONS

,

II’ 1

I

727727-000 ISSUE NO. I

l I

5. REMOVE STRAP BETWEEN TERMINALS KC AND KB WHEN

~;$yc@sl

--- -l

EXTERNAL SPEAKERPHONE IS USED.

%J

PRECED-

ING PAGE

Y-O

0

---- BK

(SEE NOTE 41

I I I

I > 5s
I i>sp*

> 4s I

1 LINE CONNECTOR

CORD

Y-O

G-R

EiDNo2TEs

I

)42 BZI
> 31

I

EXTERNA

CABLE

>- Y-O
>- R-BL

>- R-M

- SK-0

I
>- BK-S

>- W-G

>- S-Y
)- Y-S

BR-Y ,

>iS GG

)- Y-G

LNI

1

>- BR-W

)- W-BR

LN2

I

>- O-R

LN3

>- R-O
>- R-G

)- BR-R

>- S-R

62

VI

LN4

>- R-S

j E”-,“K

)- G-BK

)- BK-G

LNS

+

I 1 ’

I

I L -1

z B S-BK ’

IY I

BK-BR 1

)39 A
)I5 L

I I

727727-000 ISSUE NO. I

CT 3528s B 6 BUTTON TELEPHONE

(CALL ANNOUNCE1
DIAL AND
NETWORK HANDSET ON HOOK SIGNAL

HOOKSWITCH

I
I

O-Y

Y-O

o-w

’

\

STATIC SH’IELD

+ -

4

(KC1 ia,

fLK1 I -

I

LJ J

-I-

“?

\ s

t g I

I

S-Y

c

I

I

m .025 SQUARE PIN

r-9
12-1

4-WIRE PLUG

IFI
L)_I

IPLUG COLOR)

PWB RECEPTACLE

llll

SPADE TERMINAL

I-

----

SLEEVED AND STORED

3-

_---

[ I DENOTES EXTERNAL SPEAKERPHONE
CONNECTIONS

e

I

1 NOTES:

TO CONVERT LINE 4 PICKUP KEY TO SIGNALING. REMOVE

SCREW FROM KEY PLUNGER TO MAKE KEY NON-LOCKING.
AND MOVE SHUNT ON KEY PRINTED WIRING BOARD (PWG)
FROM POSITION 4P TO 4s.

TO CONVERT LINE 5 PICKUP KEY TO SIGNALING. REMOVE

SCREW FROM KEY PLUNGER TO MAKE KEY NON-LOCKING.
AN0 MOVE SHUNT ON KEY PWB FROM POSITION 5P TO
POSITION 5s.

TO CONVERT LINE 5 PICKUP KEY TO GROUND TRANSFER

BUTTON. REMOVE SCREW FROM KEY PLUNGER TO MAKE KEY

NON-LOCKING AND CONNECT BLACK LEAD FROM KEY PWB TO R.

STORE SHUNT 5 ON A SINGLE PIN (SO THAT NEITHER 5S
NOR 5P IS CONNECT’iD). CONNECT BK-ER LEAD TO GROUND
AT THE KSU.

d

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(RI)

UIl

727747-000 ISSUE NO. I

I I

MODULAR JACKS
AND CORD WHEN
SO EQUIPPED

4. WIRING FOR USE WITH A BUSY STATION NUMBER DISPLAY:
A. 24 VOC LAMPS:

MOVE 0 LEAD FROM SCREW TERMINAL S2 ON KEY PWB TO SI.

I

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tk

AND ADD DIODE 202852-138 AS SHOWN:

s2-SI

6. IS VAC LAMP?+
REMOVE ORANGE LEAD BETWEEN TERMINAL S2 AND

RECEPTACLE AG, ADD DIODE ASSEMBLY 206012-254 AS SHOWN :

@HI

5. REMOVE STRAP BETWEEN TERMINALS KC AND KB WHEN
EXTERNAL SPEAKERPHONE IS USED.

KEY

1 tg~;~ ICONNECTOR EXTERNI

CABLE

“%TMD

PRECED-

ING PAGE

o-w

O-Y

Y-O I

R

&I INDICATES OPTION

S-Y

Y-S

INSTALLED AT FACTORY

SHUNTS

o-w

O-Y

Y-O

I

W-G

S-Y
Y-S

I

)2 Al

)I7 BZ

I

; 42 BZI

I

) 28 LO

)20 R
>45 9

IS SO

44 BL

18 HL

43 HLG

>- O-Y

>- Y-O

>- R-EL

}- R-BN

>- BK-0

>-- BK-S

>- W-G
>- S-Y
>---- Y-S

>-a EL-W

LNI - W-BL

( zi

1

>-- BR-W

LN2 k-- W-M

>- w-s
>- BL-R

1

>- O-R

LN3 >-- R-O

: ii”-,

1

)-- S-R

LN4 >- R-S

: r2

i

1

”
“r

I

4

.

Tzyy

la

1, IA

z B

L”_I

G-BK

EIK-G .

BK-BR
S-BK ’

)I3 R

I

>3G T
)39 A

)I5 L

>- G-BK

LN5 )- BK-G

>- BK-BR
>- S-BK

I I

727747-000 ISSUE NO. I

CT 3528s BR 6 BUTTON TELEPHONE

(CALL ANNOUNCE AND TAP1

I

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R

C

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e

1

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j a.

NOTES:

TO CONVERT LINE 4 PICKUP KEY TO SISNALINS. RtT.MDVE

SCREW FROM KEY PLUNSER TO MAKE KEV NON-LOCKINQ
AND YOVE SHUNT ON KEY PRINTED WIRINS BOARD LPWBI
FROM POSITION 4P TO 48.

TD CONVERT LINE 5 PICKUP KEY TO SMALINS. R2BDVE

SCREW FROM KEY PLUNOER TO BAKE KEY NON-LOCKINS,
AND WVE SHUNT ON K2Y PWB FROM POSITION 5P TO
POSITION 58.

I

TO CONVERT LINE S PICKUP KEY TO SROUND TRANSFER

BUTTON. REMOVE SCREW FROM KEY PLUNOUI TO MAK2 KEY
NON-LOCKINQ AND CONNECT BLACK LEAD FROY KEY PYR) TO R.
STORE SHUNT 5 ON A SIN&E PIN (SO THAT NEITHER IS
yTR;; ~uCONNECTED). CONNECT BK-BR LEAD TO SROUND

I

r

I

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I

.

LEOENP

w -025 SOUARE PIN

EJ
13-t

4-WIRE PLUS

131

L3

LPLUS COLOR1

PWW RECEPTACLE

II

SPADE Ta?YlNAL

3-

---_

> SLEEVED AND STORED

-m-w

1 1 DENOT25 ETTERNAL SPEAKERPHONE
CONNECTIONS

/

m 1

I

727767-000 ISSUE NO. I

‘YODULAR JACKI)

ANDCORDWEN
so EOUIPP2D

I

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tk

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I

4. WIRINS FOR USE WITH A BUM STATION NUYBER DISPLAY:
A. 24 VDC LAWS~

YOVE 0 LEAD FROM SeREW TERYINAL 82 ON K2V Pm) TO 81.

I

I

AND AOD DIODE 202S52-138 AS sRow@

w-s1

8. IS VAC UUPS:
REYOVE ORANSE LEAD BETWEEN TERYlNAL 52 AND

RECEPTACLE AS. ADD DIODE ABSEUBLY 206012-254 A5 5ROWR

OS1

5. REUOVE<iiRAF BETWEEN TERUINALS KC AND KB WHEN
EXTERNAL SPEAKERPHONE IS USED.

KEY

LRI

1 LINE Ic~NNECT~R EXTERN,

rbfi”F.

CABLE

>- o-w

(SEE ROTE 4)

17 02

4s Bzl
81

84

37
40

ml LB
so R

45 0

IS 88
44 BL
I0 HL
41 HLO

IR

)-- Q-Y

--r-o

>- R%L
>- R%W

>- BK-0

9-

-w-e
9-

>- Y-S

>- BL-w

1

BK-8

S-Y

Ia

IO R

>- BR-W

9-

9-

R-O

R-3

727767-000 ISSUE NO. I

3625, TAP TELEPHONE WIRING DIAGRAM

COMDIAL TELEPHONE SYSTEMS

ONNECTOR , RINGER HANDSET , SWITCH , NETWORK DIAL

TIP 4. G 1

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I I I

HOOK

$HJE_LD1
L---l

+k FOR UNITS WITH MESSAGE WAITING LAMP.

FOR “A” LEAD CONTROL: CONNECT BLACK LEAD TO E2

WARNING

THIS TELEPHONE TONE-DIAL* GENERATES AND USES RADIO FREQUENCY
ENERGY. IF NOT INSTALLED PROPERLY, IT MAY CAUSE INTERFERENCE TO
RADIO OR TELEVISION RECEPTION.

THIS DIAL HAS BEEN TYPE TESTED AND FOUND TO COMPLY WITH THE LIMITS
FOR A CLASS B COMPUTING DEVICE IN ACCORDANCE WITH THE SPECIFICA­TIONS IN SUBPART J OF PART I5 OF FCC RULES, WHICH ARE DESIGNED TO
PROVIDE REASONABLE PROTECTION AGAINST SUCH INTERFERENCE IN A
RESIDENTIAL INSTALLATION. HIGHER LEVELS OF INTERFERENCE ARE
PERMISSIBLE IN BUSINESS INSTALLATIONS THAN IN RESIDENTIAL

I NSTALLATI ONS.

THERE IS NO GUARANTEE THAT INTERFERENCE WILL NOT OCCUR IN A
PARTICULAR INSTALLATION.

IF THE DIAL SHOULD CAUSE INTERFERENCE TO
RADIO OR TELEVISION RECEPTION, INTERFERENCE WILL BE PRESENT ONLY
WHILE DIALING IS IN PROGRESS. IF THIS IS DETERMINED TO OCCUR, THE
USER IS ENCOURAGED TO TRY TO CORRECT THE INTERFERENCE BY ONE OR

MORE OF THE FOLLOWI NG MEASURES:

--REORIENT THE RECEIVING ANTENNA

--RELOCATE THE RECEIVER OR THE TELEPHONE

--USE A DIFFERENT BRANCH POWER CIRCUIT FOR THE RECEIVER

FOR FURTHER ASSISTANCE, CONTACT COMDIAL OR AN EXPERIENCED
RADIO/TELEVISION TECHNICIAN.

727827-000 ISS.NO.3

COMDIAL

Business Communications Division
1180 Seminole Trail

P.O. Box 7266
Charlottesville, Virginia 22906-7266
[phone]

In Virginia: [phone]

711000-200

Printed in U.S.A.