bell system technical reference

• • II

Bell System

TECHNICAL REFERENCE

PUB 47102

MINIATURE PLUGS AND JACKS

DECEMBER 1982

• 326-143

• • • • • • • • • • -• • • • • • • •

TECHNICAL DESCRIPTION

Bell System

Miniature Plugs And Jacks

DECEMBER 1982

PUB 47102

DIRECTOR • DISTRIBUTION SERVICES, INSTALLATION & MAINTENANCE

©American Telephone and Telegraph Company, 1982

Printed in U.S.A .

NOTICE

This Document is published by American Telephone and Telegraph Company for use

by designers, manufacturers, and consultants of communication systems and

equipment. The descriptions contained in this document are to be considered

functionally equivalent to similar descriptions contained within Part 68, Chapter 1 of

Title 47 of the Code of Federal Regulations or in the current issue of Documentation

on file with the FCC entitled "Descriptions of Standard Registration Program

Connection Configurations Supplementing Configurations described in subpart F of

Part 68 of the FCC Rules and Regulations." The limits of responsibility and liability of

the Bell System with respect to the use of customer-provided systems and equipment

are set forth in the appropriate tariff regulations.

If further information is required, please write:

Director- Distribution Services, Installation and Maintenance

American Telephone & Telegraph Company 295 North Maple Avenue Basking Ridge, New Jersey 07920

L~~--------------------~~~==~----------------------~

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TECHNICAL DESCRIPTION BELL SYSTEM MINIATURE PLUGS AND JACKS

TABLE OF CONTENTS

Page

1. GENERAL ............................................................ .

1.1 Introduction ...................................................... 1 1.2 Bell System Miniature 6-Position Plug .............................. 1 1.3 Bell System Miniature 6-Position Jack .............................. 2 1.4 Bell System Miniature a-Position Plug .............................. 2 1.5 Bell System Miniature a-Position Jack .............................. 2 1.6 Bell System Miniature a-Position Series Jack ....................... 3 1.7 Bell System Miniature a-Position Keyed Plug ....................... 3 1.a Bell System Miniature a-Position Keyed Jack ....................... 3 1.9 Contact Requirements ............................................ 4

2. ADDENDUM 1 -Bell System Modular Connecting Blocks and Adapters for Voice and Permissive Data Equipment ............... 4

Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 7 Fig. a Fig. 9 Fig. 10 Fig. 11 Fig. 12

Fig. 13

Fig. 14 Fig. 15 Fig. 16 Fig. 17 Fig. 1a Fig. 19 Fig. 20 Fig. 21 Fig. 22 Fig. 23

Fig. 24

Fig. 25 Fig. 26 Fig. 27

TABLE OF CONTENTS (CONTINUED)

LIST OF FIGURES

Page

Miniature 6-Position Plug .......................................... 5

Miniature 6-Position Plug- Specification .......................... 6

Miniature 6-Position Plug -Specification (Continued) .............. 7

Miniature 6-Position Plug- Maximum Plug Size Go Gauge ......... 9

Miniature 6-Position Plug- Minimum Plug Size No-Go Gauge ..... 10

Miniature 6-Position Jack (Equipped with 4 contacts) .............. 11

Miniature 6-Position Jack- Specification ......................... 12

Miniature 6-Position Jack- Specification (Continued) ............. 13

Miniature a-Position Plug Unkeyed ................................ 16

Miniature a-Position Unkeyed Plug- Specification ................ 17

Miniature a-Position Unkeyed Plug- Specification (Continued) .... 1a

Miniature a-Position Unkeyed Plug- Maximum Plug Size

Go Gauge ....................................................... 20

Miniature a-Position Unkeyed Plug- Minimum Plug Size

No-Go Gauge ................................................... 21

Miniature a-Position Standard Jack ............................... 22

Miniature a-Position Jack- Specification ......................... 23

Miniature a-Position Jack- Specification (Continued) ............. 24

Miniature a-Position Series Jack .................................. 27

Miniature a-Position Series Jack- Specification ................... 2a

Miniature a-Position Series Jack- Specification (Continued) ...... 29

Miniature a-Position Keyed Plug .................................. 32

Miniature a-Position Keyed Plug- Specification ................... 33

Miniature a-Position Keyed Plug- Specification (Continued) ...... 34

Miniature a-Position Keyed Plug- Maximum Plug Size

Go Gauge ....................................................... 36

Miniature a-Position Keyed Plug- Minimum Plug Size

No-Go Gauge ................................................... 37

Miniature a-Position Keyed Jack .................................. 3a

Miniature a-Position Keyed Jack- Specification .................. 39

Plug/Jack Contact- Specification ................................ 42

TABLE OF CONTENTS (CONTINUED)

LIST OF NOTES

Page

6 Position Plug Specification Notes ....................................... 8 6 Position Jack Specification Notes ...................................... 14

8 Position Unkeyed Plug Specification Notes ............................. 19 8 Position Jack Specification Notes ...................................... 25

8 8 8

Position Series Jack Specification Notes Position Keyed Plug Specification Notes Position Keyed Jack Specification Notes

................................ 30 35 40

Plug/Jack Contact Specification Notes ................................. 43

1. GENERAL

The plugs and jacks described in this section represent the standard connectors to be used for connections to the telephone network. The plug and jack designs shown are representative of generic types. and should not be interpreted as the only designs that may be used. Design innovation and improvement is expected; but for interchangeability to be maintained, alternative designs (the "or equivalent" permitted in Section 68.104 subpart F of Part 68 of the FCC Rules and Regulations) must be compatible with the plugs and jacks shown. The interface dimensions between mating plugs and jacks must be maintained.

Hardware used to mount, protect. and enclose standard jacks is described in Addendum 1. The only requirernent on connecting blocks, housings, dust covers. outdoor boxes, and the like that contain standard network jacks is that they accept standard plugs.

For special purpose applications, plugs may be made longer than shown or adapted for direct use on equipment or apparatus without cordage. The sliding modular plug used on the back of many modular wall telephone sets is an example of such a special purpose applicatiol'. It 1s the responsibility of the designers and manufacturers of communication equipment whJ use such plugs to assure that they are r:o•npatible witt: the hardware used to mo1;nt ::~tandard jacks with which they plan to interface.

1.1 Introduction

This Techni:::a! Heference illustrates certain Bell System Min •ature PI'JQS and Jacks. The anginal issue datecJ August 1976. provided the product Information required by the Federal Comrnunicatio;·,s Cornrni~,sion in its Report and Order, 'Jacket No 20T14 released July 12, 1976, adopting standard plug and jack designs for connedion of a!l telephone terminal equipment to the nationwide switched net-

work. This document is being reissued to provide minor corrections to some of the original material, add the 8-position jack, add Addendum 1, and to include those changes recently proposed for inclusion to subpart F of Part 68 of the FCC Rules and Regulations. The descriptions in tilis document are to be considered functionally equivalent to the descriptions contained within subpart F of Part 68, Chapter 1 of Title 47 of the Code of Federal Regulations. These descriptions represent the Bell System design intent to assure proper interface for the miniature plugs and jacks.

1.2 Bell System Miniature 6-Position Plug

A Bell System miniature 6-position plug (see Figure 1) consists of an injection molded thermoplastic plug body equipped with slots for accepting contact blades ("6-position" identifies the max1mum size capacity of the plug, although not all positions may be equipped with contacts).

The plug body is normally affixed mechanically to the cord with each conductor located under the correct slot. Contact blades are then inserted into each slot. Each contact blade includes features that lock it in place and tangs that pierce the insulation making electrical contact with the conductor located under the associated slot. This Bell System 6-position plug was designed for assembly to flat cordage to facilitate conductor location during the assembly operation, although it could be designed to accept round cordage.

The dimensions shown in Figures 2 and 3 should permit ali 6-position plugs to work with all mating 6·· and 8-position standard jacks. Plug size. front stop, and locking tab dimensions shown are critical since departure from them can lead to plugs which will not fit or latch into standard jacks. Plugs longer than specified in Figures 2 and 3, or plugs with adaptive features or oversize cordage, must be capable of mterfacing with the modular connect1ng blocks and adapters described

F

in Addendum 1 to be compatible with Bell System standard hardware. In general, adaptive features on plugs that are within the size envelope of the 267A adapter shown in Addendum 1, Figures 27 A and 28A will interface with standard Bell System connecting blocks used for voice and permissive data equipment but will inhibit the protective features of connecting blocks designed for use in high contaminant and high condensate level locations (e.g. see 625S connecting block shown in Addendum 1, Figure 6A).

The Bell System plugs include dielectric barriers between contact blades and across the ends of the conductors to help prevent electrical breakdown failures.

The gauges shown in Figures 4 and 5 are essential for determining if assembled plugs meet maximum and minimum size requirements. The 0.264 X 0.384 maximum height and width Go Gauge dimensions should not be exceeded over a minimum length of 0.460, measured from Datum -A-, shown in Figure 2.

1.3 Bell System Miniature 6-Pos!tion Jack

The Bell System miniature 6-position jacks consist of an assembly of an injection molded thermoplastic frame containing a plug-receiving cavity and a jack top containing multiple holes for up to 6 contact springs. These contact springs are spliced to stripped individual insulated conductors. Bell System jacks may be molded as an integral part of the apparatus or the apparatus might be designed to accept a snap-in version of a jack assembly and/or jack top assembly. One such connecting block assembly with a standard jack is illustrated in Figure 6.

Dimensions shown in Figures 7 and 8 permit all 6-position plugs to mate with this jack. Figure 8 defines the spring wire location coordinates for the 6-position jack. Plugreceiving cavity and plug stop dimensions shown are critical since departure from them

2

can lead to jacks which wili not properly accept standard plugs.

The gauges specified in Note I 0 e:n rage 15 are essential for determinir.;· 1f c.s~:r:;n-ro~E-d

jacks meet maximun1 and rn1nw1ur.' ~;;·c.f requirements.

1.4 Bell System Miniature 8-Position Plug

The Bell System miniature 8-pos1tion :)lug (see Figure 9) is similar in ::o 1s -v;tirr: t· ''1~

6-position plug shown in Figure l. r:xr:-s~: !~c, it can be equipped With up to 8 con~2:~ts The Bell System a-position p!ug VIaS dt:Sit,;r:.~c.J for assembly to round twisted-pair corc1e.ge to reduce potential crosstalk probiems. aitr.uug~ it can be designed to accept fla! cordage.

The dimensions shown ir Fi;; J· es ; ~ q; d 11 permit all 8-position plugs to 'VCrK with a!i

mating 8-position standard 1acks ;:ir;ci con· necting blocks. Pi~.J9 s1ze. ~:':y-,t 'c>tc~~ ·lei locking tab dimens1ons shown 'ire crr~t:_:::~.

since departure from them can lead to plugs that will not fit or latch into 8-position standard jacks. The .264 X .464 maximum height and width Go Gauge dimensions should not be exceed over a length of not less than .467 inches measured from Datum -A-, shown in Figure 10.

The Bell System plugs include dielectric barriers between contact blades and across the ends of the conductors to help prevent electrical breakdown failures.

The gauges shown in Figures 12 and 13 are essential for determining if asserr':)led p!ugs meet max1mum and minimum size requirements.

1.5 Bell System Miniature a-Position ,Jack

The Bell System miniature 8-position jack (Figure 14) is similar 1n construction to the 6-position jack except that each jack may be equipped with up to 8 contact springs.

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Dimensions shown in Figure 15 and 16 permit all 6-position and a-position non-keyed plugs to work with this jack. Plug-receiving cavity and plug stop dimensions shown are critical since departure from them can lead to jacks which will not properly accept standard plugs.

The gauges specified in Note 10 on Page 26 are essential for determining if assembled jacks meet maximum and minimum size requirements.

1.6 Bell System Miniature a-Position Series Jack

The Bell System miniature a-position series jack (see Figure 17), is similar in construction to the a-position jack except that with no plug inserted. conductors 1 and 4 are bridged as well as conductors 5 and a. When a miniature a-position plug is inserted into the jack. the bridges are removed from these conductors and a series connection can be made to both sides of the line. The bridge connection remains unbroken when a standard 6-position plug is inserted.

Dimensions shown in Figures 1a and 19 should permit all 6 and non-keyed a-position plugs to work with this jack. Plug-receiving cavity and plug stop dimensions shown are critical since departure from them can lead to jacks which will not properly accept these standard plugs.

The gauges specified in Note 10 on Page 31 are essential for determining if assembled jacks meet maximum and minimum size requirements.

1.7 Bell System Miniature a-Position Keyed Plug

The Bell System miniature a-position keyed plug (see Figure 20) is the same as the aposition plug except for the addition of a

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protrusion to prevent insertion of the keyed plug into an unkeyed jack.

The dimensions shown in Figures 21 and 22 permit all a-position keyed plugs to work with all mating a-position keyed jacks. Plug size. front stop key protrusion. and locking tab dimensions shown are critical since departure from them can lead to plugs that will not fit or latch into jacks. The .264 X .464 maximum height and width Go Gauge dimensions should not be exceeded over a length of not less than .467 inches measured from Datum -A-. shown in Figure 21.

The Bell System keyed plugs include dielectric barriers between contact blades and across the ends of the conductors to help prevent electrical breakdown failures.

The gauges shown in Figures 23 and 24 are essential for determining if assembled plugs meet maximum and minimum size requirements.

1.a Bell System Miniature a-Position Keyed Jack

The Bell System miniature a-position keyed jack (see Figure 25) is similar in construction to the a-position jack, except that it contains a recess to accommodate the protrusion on the a-position keyed plug.

Dimensions shown in Figure 26 permits all 6-and a-position plugs and a-position keyed plugs to work with this jack. Plug-receiving cavity, key recess, and plug stop dimensions shown are critical since departure from them can lead to jacks which will not properly accept standard plugs.

Gauges shown in Note 10 on Page 41 are essential for determining if assembled jacks meet maximum and minimum size requirements.

1.9 Contact Requirements

Specific requirements are shown in Figure 27. A gold interface surface (or equivalent) should be used to provide a connection having a high degree of resistance to corrosion and contamination with a minimum contact force of 100 gms. A smooth non-porous contact surface is required to avoid corrosive activity and excessive abrasive wear at the plug-jack interface.

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2. ADDENDUM 1 - BELL SYSTEM MODULAR CONNECTING BLOCKS AND ADAPTERS FOR VOICE AND PERMISSIVE DATA EQUIPMENT

Addendum 1 (attached) includes specification sheets depicting the front face topography for all the major Bell System Network Connecting Blocks and Adapters. All internal jack and external plug dimensions are controlled by the specifications on these topography sheets as well as the applicable specifications referenced in the Figures of this Technical Description. Dimensions given are critical for assuring proper interface of modular hardware with standard plugs and

jacks.

- - ------- -~====--iOiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii _________ _

MINIATURE 6 POSITION PLUG

(Note: This plug is depicted equipped with 4 contacts; it may be fabricated with its full 6 contact capability.)

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FIGURES4 & 5

NOTE: ALL NOTES FOLLOW FIGURE 3

SEE FIGURE 3

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MINIATURE 6 POSITION PLUG, SPECIFICATION (CONTINUED)

f EX P.t9NDE D PL VG

PERMITTED S££ NOTE 4-

S£CT 8-8

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-6-POSITION PLUG, SPECIFICATION NOTES

NOTES: (Notes apply to Figures 2 & 3)

1. All plugs must be capable of meeting the requirements of the plug go and no-go gauges.

2. Section BB applies to any jack contact receiving slot which does not contain a plug contact.

3. The preferred major cordage cross section is .1 00 inch max. thick by .200 inch max. wide, with rounded corners. It should exit the plug on the plug centerline. Other cordage configurations are permitted but may inhibit the special features of some network jack enclosures.

4. The standard plug length is .460 inch max. Plugs may be made longer than standard or adapted for direct use on special cords, adapters without cordage, and on apparatus or equipment subject to the limitations described in the general paragraph of this document. Plugs longer than standard may inhibit the special features of some network jack enclosures.

5. A .474 inch minimum tab length is required. It is preferred that a maximum tab length be no longer than .520 inch. Longer tabs may be used with the same limitations as described in Note 4.

6. To obtain maximum plug guidance when 6-position plugs are inserted in aposition jacks, it is desirable to extend the front plug nose to the .092 inch maximum.

7. These dimensions apply to the location of jack contact receiving slots. It is desirable that plug contacts be centered axially in these slots, but centering is not required.

8. The .238/.243 dimension is preferred to obtain maximum plug guidance in jacks with more than 6 conductors. A tolerance range of .233/.243 is permitted, but may create targeting problems in 8-position jacks.

9. The center rib centerline shall be coincident with the plug width (.380 Ref.) centerline within ± .003 inch.

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MINIATURE 6 POSITION PLUG MAXIMUM PLUG SIZE

.092 .MAX J . 2600 1'1A X -+-----.1

.460

.5 EC T. /1-/l

Notes:

R.0/5 T0.02~ /9LL /1ROtiNO

GO GAUGE

.012.0 MAX

1. The plug shall be capable of insertion and latching into the gauge with S pounds or less insertion force. Plug latching bar shall be depressed so as not to interfere with the plug entry. After insertion and latching, plug shall be capable of removal, with the latch depressed, with a removal force of 10 pounds or less applied at an advantageous angle.

2. Dimensions given to three decimal places shall be within ±.002 inch.

3. Dimensions (A) and (B) to be centrally located with respect to .3840 max. jack opening width within ±.001 inch.

4. Do not scale drawings for external configuration.

9

f-4------f-.. 3840 N7/1X.

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MINIATURE 6 POSITION PLUG MINIMUM PLUG SIZE

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GAUGES WIDTH

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GAUGES HEIGHT

84 Ml N •

NO- GO GAUGE

I. The plug shall not be capable of entering the gauge more than .070 inch beyond datum -A- (see figure 2 with 2.0 pounds insertion force.

2. Non-toleranced dimensions given to three places shall be within± .002 inch.

3. *.260 Dimension to be centrally located with respect to .384 minimum and .3755 minimum within ±.002 inch.

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MINIATURE 6 POSITION JACK (EQUIPPED WITH 4 CONTACTS)

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(Note: This jack is depicted equipped with 4 contacts; it may be fabricated with its full 6 contact capacity.)

FOR REQUIREMENTS OF CONTACTS MATED WITH PLUGS SEE CONTACT INTERFACE SPEC/FICA T/ONS FIGURE 27

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MINIATURE 6 POSITION JACK, SPECIFICATIONS (CONTINUED)

.035 MIN. SEE NOTE 9

JACK CONTACT

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NOTE: ALL NOTES FOLLOW THIS FIGURE

13

6-POSITION JACK, SPECIFICATION NOTES·


1. Front surface projections beyond the .050 min. shall be configured so as not to

prevent finger access to the plug release catch (Reference Figures 2 & 3, 6-

Position Plug, Specifications). A catch length greater than .050 is beneficial in

providing greater breakout strength.

2. Surface Z need not be planar or coincident with the surface under the plug

release catch. Surface Z projections must not prevent insertion, latching, and

unlatching of the standard 6-position plug described in Figures 2 & 3.

3. The preferred plug stop surface is indicated. If some other internal feature is

used as a plug stop, it must be located so that the axial movement of a latched

plug is not greater than 0.045 inch.

4. To prevent mistargeting between the plug and jack contacts, the jack contacts

should be completely contained in their individual contact zones (.028 inch max.

wide) where they extend into the jack openings. There is no location requirement

for jack contacts below these zones (.230 inch max.), but adequate contact

separation must be maintained to prevent electrical breakdown. These shaded

contact zones should be centrally located (include all locating tolerances) about

the jack opening width .389 Ref. (Datum -W-). Contacts located outside of these

zones may result in mistargeting between the jack and plug contacts.

5. All inside and outside corners in the plug cavity to be .015 inch radius max.

unless specified.

6. These surfaces shall have 0°15' maximum draft.

7. Relief inside the dotted areas on 3 sides of the jack opening is permitted. The .269

Ref. and .389 Ref. Gauge Requirements must be maintained in each corner (Ref.

0.040 inch min) to assure proper plug/jack interface guidance. A .32 ± .005 relief

on the top side (opposite plug catch) is required on jacks in connecting blocks

which mount and connect portable wall telephones so as to assure interface with

the special purpose sliding modular plug used on many wall telephone sets.

8. 0.160 and .257/.270 inch dimensions to be centrally located to jack opening

width -W- within± 0.007 inch.

9. Minimum acceptable jack contact length. When contact guide slots are used, the

contacts must always be contained inside the guide slots and the contacts must

move freely in the slots so as not to restrain plug insertion or damage jack

contacts.

14

6-POSITION JACK, SPECIFICATION NOTES

NOTES: (Continued)

10. Gauge Requirements:

GO: The jack shall be capable of accepting a 0.3840 X 0.2640 inch gauge and the gauge shall be capable of being removed with a maximum force of 2 pounds.

NO GO: The jack shall not accept either a 0.3940 X 0.254 inch horizontal width of opening gauge of a .2740 X .376 inch vertical height of opening gauge. However, if either gauge is accepted, the force necessary to remove the gauge shall be minimum 3.0 ounces.

Removal forces do not include forces contributed by contact springs nor shall external forces be applied to the jack that will affect these removal forces.

Gauges shall have a 0.030 inch radius on the nose and a 0.015 inch radius on all edges with clearance provided for contacts.

15

---MINIATURE 8- POSITION PLUG, UNKEYED:

(c) Miniature 8 -Position Plug, Unkeyed:

16

....,

FuLL R.A...DitJS Pe:R.r-J'\ITTED ON ~ ..... L SLOT.S

Note: This plug is depicted with its full 8 contact capacity. It may be fabricated with less than 8 contacts.

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MINIATURE 8 POSITION UN KEYED PLUG, SPECIFICATION (CONTINUED)


18

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~--SEE NOT£ 2--==.t-~

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8-POSITION UNKEYED PLUG, SPECIFICATION NOTES



2. The standard plug height in the area shown in .315 inch maximum. The standard plug length is .910 inch maximum. Plugs may be made longer than standard or adapted for direct use on special cords, adapters without cordage, apparatus or equipment subject to the limitations described in the general paragraph of this document. Plugs longer and/or higher than standard may inhibit the special features of some network jack enclosures.


4. To obtain maximum plug guidance in jacks, it is desirable to extend the front plug nose to the .092 inch maximum.


6. The center rib centerline shall be coincident with the plug width (.460 Ref.) centerline within± .003 inch.

19

--

MINIATURE 8 POSITION UN KEYED PLUG, MAXIMUM PLUG SIZE

t----.ot---'---:. to ,q

SECT. A-A I

~---+--.2.440 Mh'X. 8

.4640 M~XJ

GO GAUGE

Notes:

1. The plug shall be capable of insertion and latching into the gauge with 5 pounds or less insertion force. Plug latching bar shall be depressed so as not to interfere with the plug entry. After insertion and latching, plug shall be capable of removal, with the latch depressed, with a removal force of 10 pounds or less applied at an advantageous angle.

2. Dimensions given to three decimal places shall be within ± .002 inch.

3. Dimensions (A) and (B) to be centrally located with respect to .4640 max. jack opening width within± .001 inch.


20

MINIATURE 8 POSITION UNKEYED PLUG, MINIMUM PLUG SIZE

VIEW /1-/9 G/11/GE 5 W!OTH

.005 MAX

NO- GO GAUGE

VIEW B-B 6AI/GES HEIGHT

1. The plug shall not be capable of entering the gauge more than .070-inch beyond datum -A- (see Figure 10 with 2.0 pounds insertion force.

2. Non-toleranced dimensions given to three places shall be

within ± .002 inch.

3. * .248 dimension to be centrally located with respect to .464 minimum and .4560 minimum within ± .002 inch.

21

MINIATURE 8 POSITION STANDARD JACK

'1' -

22

1\) (,.)

Note: This Jack Is Depicted With 8 Contacts. It May Be Fabricated With Less Than 8 Contacts.

• CONTACTS SHOWN AT RE.ST S££ /r'OTE 9

• f'ol< REQU!RE/'1EN TS OF CONTACTS /'1ATED \..II TH PLUG5 SEE CONTACT !NrERFAC£ SPECIFIC II TION F16UI?E 27

4.J v

,PRE.FER,&/£0 PLU6 rSTOP SEE NOTE 3

3"30 'M,t;X. DRIIFT SURF/ICE 2\ PERMITTED fsEE NOTE 2.

~ ()I ~~ ,; ") ~ 0' l"r)~ ~ "),..., '

~~ ~~ii· ~ I II lo £>-?-' ....... ~ ... -0.. 4.:~ " . "" ~ ~

~ q. ct

~ ~ ~~ ~ ~ ' " .... ~v-, ~ ~ COh_ () ~ (\J~ • 1.1') 0--.; C)

'!.(_ ' t"_ l

.092 "''"'j SEE NOTE 3 ~ .058 1'1/NIMU/'1 SEE NOTE 3

-A-SECT /1-/9 5££ NOT£ S


...... !"\ 4.J 0\'!) \D::::, !'\.l't

'\1 en \)

·I.J

t4J . 4.J

~

\0

~ C)

< ~ ltJ V')

Figure 15

,&/.005 MAX. TYP 2 PLACES

---- RE .fiR CONTACT --- GUIDE SLOTS

REQUIRED

SEE NOTE 6 TYPE BOTH SIDES

l=-~ 06DMIIY. TYP.

' SE.£ NOTE 7 fl ~ I '--.....___ SEE NOTE I

j 1.. ..j 1 .;io:r. oos . 248 !. 003~SE E NOTE 8

SEE NOTE 8

1-W-1 .469 REF.

5£ £ 6/ll/6£ NOTE 10

3: -z -,. -t c: :::D m (X)

"tJ 0 en --t -0 z '-,. 0

"' . en "tJ m 0 "'TI -0 ,. -t -0 z

MINIATURE 8 POSITION JACK, SPECIFICATION (CONTINUED)

. 0 2 8 M /1 X. -----tO~

~--+---+-+--. I 20 REF

~+-+--- . 04 0 REF .

5 E E NOTE 4 ----41f.U_...L-t+t-t-t--+--

J/ICK OPENING

DIMENSIONS /fRE NOMIN/9L CONT/iC T CENTERLINE LOC/ITION

S£ E. ['lOT£ 4

CONT_qc T ZOIV£ 5££ NOTE 4-

~--~------ . 4 6 9 REF. L.......--_.J

VIEW Or CO/VT/?CT ZONE


24

I i

I

8-POSITION JACK, SPECIFICATION NOTES


1.

2.

3.

4.

5.

6.

7.

8.

9.

Front surface projections beyond the .055 minimum shall be configured so as not to prevent finger access to the plug release catch (Reference Figures 10 & 11, 8-Position Plug, Specifications). A catch length greater than .055 is beneficial in providing for greater breakout strength and improved guidance when interfacing with a 6-position plug.

Surface Z need not be planar or coincident with the surface under the plug release catch. Surface Z projections must not prevent insertion, latching, and unlatching of the standard 8-position plug on Figures 10 & 11.

The preferred plug stop surface is indicated. If some other internal feature is used as a plug stop, it must be located so that the axial movement of a latched plug is not greater than 0.045-inch.

To prevent mistargeting between the plug and jack contacts, the jack contacts should be completely contained in their individual contact zones (.028 inch max. wide) where they extend into the jack openings. There is no location requirement for jack contacts below these zones (.230 inch max.), but adequate contact separation must be maintained to prevent electrical breakdown. These shaded contact zones should be centrally located (include all locating tolerances) about the jack opening width .469 Ref. (Datum -W-). Contacts located outside of these zones may result in mistargeting between the jack and plug contacts.

All inside and outside corners in the plug cavity to be .015 inch radius max. unless specified.

These surfaces shall have 0°15' maximum draft.

Relief inside the dotted areas on both sides of the jack opening is permitted. The .269 Ref. and .469 Ref. Gauge Requirements must be maintained in each of the corners indicated (Ref. 0.060 inch min.) to assure proper plug/jack interface guidance.

0.160- and .248-inch dimensions to be centrally located to jack opening width -W- within± 0.005-inch.

The contact lengths shall be such that the contacts will always be contained inside the guide slots, and the contacts must move freely in the slots so as not •o restrain plug insertion or damage jack contacts.

25

r

a-POSITION KEYED JACK, SPECIFICATION NOTES

NOTES: (Continued)


GO: The jack shall be capable of accepting a 0.4640-inch X 0.2640-inch gauge and the gauge shall be capable of being removed with a maximum force of 2.0 pounds.

NO GO: The jack shall not accept either a 0.4740-inch X 0.254-inch horizontal width of opening gauge or a 0.2740-inch X 0.456-inch vertical height of opening gauge. However, if the gauge is accepted, the force necessary to remove the gauge shall be minimum 3.0 ounces.


Gauges shall have a 0.030-inch radius on the nose and a 0.015-inch radius on all edges with clearance provided for contacts.

26

--MINIATURE 8-POSITION SERIES JACK

r---

27

1\) CX>

Note: This jack is depicted with 8 contacts. It may be fabricated with less than 8 contacts.

• CONTACTS SHOWN ATREST SEE NOT£ 9

• FOR REQUIREMENTS OF CONTACTS MATEO 'WITH PLU65_ 5£E CONTACT INTERFACE .5PE(' /F/t!/?T/ON r/GV!i'E -::? 7

•BRIDGING CONTAC!S S££ NOT£S /" IZ

~· ~ ~ ~ ~ ~

!"'REFERRED PLUG rSTOP t;EE NOTE 3

R.O/S 3"30

1

M/!X.ORI9FCSURF/IC£ z\ \M...9X. TYP. PERM/TTEO S££ /VOTE B. \ 2 PLACES

~ I A ~ ~1-:- ":'\

~~ ~=11~~ ~ R.OOS M19X.

TYP 2PLACES

j~~~~---,~~~~-~ ~~ ... \_l.j ~ llj~

9:: 't Q:~

RE/IR CONT RC T GUIDE SLOTS REQUI/?£.0

~ ~__l_ CJ\~ II ) I 7~ ,. ~~--+-~ J I I I

-¥ ~~, . TIll

-A-.SE CT. /1-./9 S££ NOT£ 5

l\1 ~ ~ .

~

\o

~ ~ liJ li.J U)

.060 M//ll. TYP. SEE NOT£ 7

SEE NOTE I

1- .. , .16or.oos .Z4Br.oog~SEE NOTE 8

SEE /VOTE 8

1- w-1 .469 REr. SEE GNUGE NOT£ 10


Figure 18

s:: -z -)> -t c: ::J:J m co "'tJ 0 en --t -0 z en m ::J:J -m en c.. )> C')

" . en "'tJ m C') -., -C') )> -t -0 z

MINIATURE 8 POSITION SERIES JACK, SPECIFICATION (CONTINUED)

.028 M/1X.---~

1-4--...-.!--+-~-.120

REF. '-1---+-l----.040

REF.

SEE NOTE 4- ---++-W--1,.....14+-t-1-+--

v/IC H OPENING

DIMENSIONS .-919£ NOMIN/9L CONT,t:;CT

CENTERLINE LOCnTION SEE NOT£ 4-

CONT.-c;cr ZONE SEE NOT£ 4-

1--~-.46 9 REF. ._ _ __.

VIEW OF CO/VT/?CT ZONE


29

0\ -

r

8-POSITION SERIES JACK, SPECIFICATION NOTES


1. Front surface projections beyond the .055 minimum shall be configured so as not

to prevent finger access to the plug release catch (Reference Figures 10 & 11,

8-Position Plug, Specifications). A catch length greater than .055 is beneficial in

providing for greater breakout strength and improved guidance when inter

facing with a 6-position plug.

2. Surface Z need not be planar or coincident with the surface under the plug

release catch. Surface Z projections must not prevent insertion, latching, and

unlatching of the standard 8-position plug on Figures 10 & 11.

3. The preferred plug stop surface is indicated. If some other internal feature is

used as a plug stop, it must be located so that the axial movement of a latched

plug is not greater than 0.045-inch.

4. To prevent mistargeting between the plug and jack contacts, the jack contacts

should be completely contained in their individual contact zones (.028 inch max.

wide) where they extend into the jack openings. There is no location requirement

for jack contacts below these zones (.230 inch max.), but adequate contact

separation must be maintained to prevent electrical breakdown. These shaded

contact zones should be centrally located (include all locating tolerances) about

the jack opening width .469 Ref. (Datum -W- ). Contacts located outside of these

zones may result in mistargeting between the jack and plug contacts.

5. All inside and outside corners in the plug cavity to be .015 inch radius max.

unless specified.


7. Relief inside the dotted areas on both sides of the jack opening is permitted. The

.269 Ref. and .469 Ref. Gauge Requirements must be maintained in each of the

corners indicated (Ref. 0.060 inch min.) to assure proper plug/jack interface

guidance.

8. 0.160- and 0.248-inch dimensions to be centrally located to jack opening width

-W- within± 0.005-inch.

9. The contact lengths shall be such that the contacts will always be contained

inside the guide slots, and the contacts must move freely in the slots so as not to

restrain plug insertion or damage jack contacts.

30

8-POSITION SERIES JACK, SPECIFICATION NOTES

NOTES: {Continued)


GO: The jack shall be capable of accepting a 0.4640-inch X 0.2640-inch gauge and the gauge shall be capable of being removed with a maximum force of 2.0 pounds.




31

MINIATURE 8- POSITION KEYED PLUG:

(c) Miniature 8-position keyed plug:

32

VJ VJ

FuLL R,a.....DIUS Fk:-R.~ITIE D ON

P.......LL OL-0-..s

l(

Note: This plug is depicted with its full 8 contact capacity.

It may be fabricated with less than 8 contacts.

R ~osrrp .01~

(

~--~, ~ I I ,..

C:ENTE!9 RIB" 1\J SEE NOTE 6 1:::,

1:1 ~· ~ ~·C) '1-\ \Q

..., 1:::, " 1:::, I --; ; ~ . I

R .00!> .025 TYP

SEE NOTE 5] CONTACT SEE

FIGURE 27

R

R :_ooo ry fJ .ozs- ·

3 "5o' /Yln'X. · fDR/9FT /-SECT. /9-/9

PE/?MITTEO/ _r-R. 015 :!t,OOS

~~ ~~"' r ::::: <::; c::j • 04~ " / I I I

~ :::,:i .ot5R ::f.o-.;j

*'.,." * * ~'-'J ,OJS" MIN. CEIVTER RIB * *

CENTERLINE .0~ M>9X' SEE NOTE 6 _/

SEE NOT£ 4

/TIS ?h'EFERREO TH/lT NO CONOL/C TO/'? BE EXPOSED OIY T#/S SURF/9CE

~ . Z40~CKJ.3 011'1ENSION TO BE CENTtf'ALL.'I' LOCATED ABOUT f>Lt/G C£NTER WITHIN I.003

X.* SEE Gc'9t/6E REQUIREMENTS SEE FIGURES 23 & 24


Figure 21

><

~

_,--- C0/10/IGE

~~REF.~

~00.8

• Lc:ENTER RIB CENTERLINE SEE NOTE 6

3C -z -)> -4 c: :a m CD

"tJ 0 en --4 -0 z :::-:; m -< m c "tJ rc: C) . en "tJ m 0 -"TT -0 )> -4 -0 z

MINIATURE 8 POSITION KEYED PLUG, SPECIFICATION (CONTINUED)

-A-


34

8-POSITION KEYED PLUG, SPECIFICATION NOTES



2. The standard plug height in the area shown in .315 inch maximum. The standard plug length is .910 inch maximum. Plugs may be made longer than standard or adapted for direct use on special cords, adapters without cordage, apparatus or equipment subject to the limitations described in the general paragraph of this document. Plugs longer and/or higher than standard may inhibit the special features of some network jack enclosures.


4. To obtain maximum plug guidance in jacks, it is desirable to extend the front plug nose to the .092 inch maximum.


6. The center rib centerline shall be coincident with the plug width (.460 Ref.) centerline within± .003 inch.

35

MINIATURE 8 POSITION KEYED PLUG, MAXIMUM PLUG SIZE

SECT. A-A

GO GAUGE

Notes:

1. The plug shall be capable of insertion and latching into the gauge with 5 pounds or less insertion force. Plug latching bar shall be depressed so as not to interfere with the plug entry. After insertion and latching, plug shall be capable of removal, with the latch depressed, with a removal force of 10 pounds or less applied at an advantageous angle.

2. Dimensions given to three decimal places shall be within ± .002 inch.

3. Dimensions (A) and (B) to be centrally located with respect to .4640 max. jack opening width within ± .001

inch.


36

MINIATURE 8 POSITION KEYED PLUG, MINIMUM PLUG SIZE

VIEW A-~ G/ll/GES WIOTH

R.OIS MAX.

NO- GO GAUGE

VIEW B-B 6At1GES HEIGHT

I. The plug shall not be capable of entering the gauge more than .070-inch beyond datum ~A~ (see Figure 21 with 2.0 pounds insertion force.

2. Non-toleranced dimensions given to three places shall be within± .002 inch.

3. * .248 dimension to be centrally located with respect to .464 minimum and .4560 minimum within± .002 inch.

37

.050 M!IY.

MINIATURE 8 POSITION KEYED JACK

38

w (!)

Note: This jack is depicted with all 8 contacts. It may be fabricated with less than 8 contacts.

• CONT/1CTS SHOWN /tT REST SE£ NOTE 9

• FOR REQUIREMENTS OF CO# T/TC TS M/ITEO WITH PLUGS SEE CONT/7C 7 !IVTER,C,qCE SPECIF/CrrTIONS F/GL/If'E Z7

PREFERRED PLUG STOP

SEE NOTE .3

(/)

~ ~ \o~ 4.J lJ..J h. h.~ <0

R.030 PREFERRED R.O{)S MAX ~'\) ~ SURF,ITCE z GTYP Q) ~

SE£ NOTE 2l SEE N0TE6 ~~ ~ ~\)); ~ ~ '\)

CONTACT ZONE SAME AS SHOWN ON FIGURE 19 SEE NOTE 4 ()I \ A \1) h. ~ ~

~(\)"' ' "" '\) ~ ·~~~ ~ ~~·--RE/1R CONT/9CT

4: ~ ·>-1() Gt/!De SLOT£ , .. ~ ~ ~ REQU/RED '-'J\.tJ I -

_l 1:{ \:) ll\::5

'0:

~~~~ ~ ; ~ t$- .J v t 'r~ T ~ ~ I .. , , --- ?'t ~ ~~ ~

L ~5££ NOTE I

R.0/5" MfiX.

SECT. /9-.R SEE NOTES"


"" ~ ~ ~~: ~ l<J ~

<0 ~ ~ \..0 V) <;:

<09-,: ~ -~ ~ " ~

Figure 26

.o5o ~.oos

1- •l .160 :t.oos I 5££. NOTE 8

248 :t_(J03 f-.-SEE NOTE 8

-W I •I .469 REr.

5££ G/i't/6£ /VOTE 10

~ -z )> -4 c: ::0 m Q)

"tJ 0 en --4 -0 z

" m -< m c c.. )> 0

" . en "tJ m 0 , 0 )> -4 -0 z

8-POSITION KEYED JACK, SPECIFICATION NOTES

NOTES: (Notes apply to Figure 26)

1. Front surface projections beyond the .055 minimum shall be configured so as not to prevent finger access to the plug release catch (Reference Figures 21 & 22). A catch length greater than .055 is beneficial in providing for greater breakout strength and improved guidance when interfacing with a 6-position plug.

2. Surface Z need not be planar or coincident with the surface under the plug release catch. Surface Z projections must not prevent insertion, latching, and unlatching of the standard a-position plug on Figures 21 & 22.

3. The preferred plug stop surface is indicated. If some other internal feature is used as a plug stop, it must be located so that the axial movement of a latched plug is not greater than 0.045-inch.

4. To prevent mistargeting between the plug and jack contacts, the jack contacts should be completely contained in their individual contact zones (.028 inch max. wide) where they extend into the jack openings. There is no location requirement for jack contacts below these zones (.230 inch max.), but adequate contact separation must be maintained to prevent electrical breakdown. These shaded contact zones should be centrally located (include all locating tolerances) about the jack opening width .469 Ref. (Datum -W-). Contacts located outside of these zones may result in mistargeting between the jack and plug contacts.

5. All inside and outside corners in the plug cavity to be .015 inch radius max. unless specified.


7. Relief inside the dotted areas on both sides of the jack opening is permitted. The .269 Ref. and .469 Ref. Gauge Requirements must be maintained in each of the corners indicated (Ref. 0.060 inch min.) to assure proper plug/jack interface guidance.

8. 0.160- and .248-inch dimensions to be centrally located to jack opening width -W- within± 0.005-inch.

9. The contact lengths shall be such that the contacts will always be contained inside the guide slots, and the contacts must move freely in the slots so as not to restrain plug insertion or damage jack contacts.

40

8-POSITION KEYED JACK, SPECIFICATION NOTES

NOTES: (Continued)


GO: The jack shall be capable of accepting a 0.4640-inch X 0.2640-inch gauge and the gauge shall be capable of being removed with a

maximum force of 2.0 pounds.


Removal forces do not include forces contributed by contact springs nor shall external forces be applied to the jack that will affect these

removal forces.


41

PLUG/JACK CONTACT SPECIFICATION

--, r--. 018

II 5EE.'>c?Tc2

I ~ .//.0( CONTACT

u~ /

URAS SIIALL NOT PROJECT ------- ~.as Jtl/tl 80<[ TOP o,c CON T.-IC T

w nos AI{ E A

II II - ~ ~-.01/MIN

I --- --.022 ~ .002

SE~ Nt?TE w

SECT. C-C P,llE,.,-ERitFO CONTACT C~#F/6UfiA T /0/11 !iE~ /tbrEs ~3 3

.237 :t..PO'!f

I

SEE N7iE5

011 +.007_---t-~.-. -.010

c .. I

f-4-----;-. I 10 N}l/\1 -----

. OS 7 RE F--t-o>-----1 ------- .I!J>Z MIN -----oo--1 • 0'35

SECT. A-//


42

t

PLUG/JACK CONTACT SPECIFICATION NOTES

NOTES: (Notes apply to Figures 2, 3, 10, 11, 21 & 22)

1. The plug/jack contact interface should be hard gold to hard gold and should have a minimum gold thickness of 0.000050 inch on each side of the interface. The minimum contact force should be 100 grams. Any non-gold contact material must be compatible with gold and provide equivalent contact performance. A smooth, burr-free surface is required at the interface in the area shown.

2. The jack contact design is based upon .018 inch spring temper phospher bronze round wire in the modular plug blade and jack contact interface. Other contact configurations that provide contact performance equal to or better than the preferred configurations and do not cause damage to the plug or jack are permitted. The preferred jack contact width is .0177/.0195 inches. Deviations from the preferred jack contact width are permitted for round contacts as well as noncircular cross sectional shapes but they must be compatible with existing plug configurations. The requirements of Note 1 apply to all possible contact areas.

3. The configuration of the plug contact and the front plastic of the plug should prevent jack contacts from being damaged during plug insertion into jacks.

4. This is the suggested nominal contact angle between plugs and jacks with the plug latched into the jack. If this angle becomes greater than 24 degrees, loss of electrical contact may occur between the plug and jack. If the nominal contact angle becomes less than 13 degrees, interference between jack contacts and the internal plastic in the plug may occur.

5. To avoid loss of electrical contact, the preferred dimension from datum B to the highest point "x" should be .200 inch max. A dimension greater than .211 inch may result in loss of electrical contact between plugs and jacks. The .211 inch max. shall be considered an absolute maximum.

6. The 24 degree min. angle applies only to plugs with front plastic walls higher than .190 inches.

43

ADDENDUM 1

(ISSUE 2)


MINIATURE PLUGS AND JACKS

BELL SYSTEM

PUB 47102

MODULAR CONNECTING BLOCKS AND ADAPTERS

FOR VOICE AND PERMISSIVE DATA EQUIPMENT

December, 1982

DIRECTOR - DISTRIBUTION SERVICES, INSTALLATION & MAINTENANCE

@ ©American Telephone And Telegraph Company, 1982

Printed In U.S.A.

ADDENDUM


BELL SYSTEM MODULAR CONNECTING BLOCK AND PLUG FOR VOICE AND PERMISSIVE DATA EQUIPMENT

TABLE OF CONTENTS Page

2.1. Introduction .................................................... 1

TABLES

TABLE A Connecting Block and Plug- Description and Applicable USOCs .......................................... 2 & 3

LIST OF FIGURES

Fig. 1A 625A, 725A, Connecting Blocks .................................. 4

Fig. 2A 625A, 725A, Connecting Blocks- Specification .................. 5

Fig. 3A 625F, 725F, Connecting Blocks with Round and Rectangular Faceplates ......................................... 6

Fig. 4A 625F, 725F, Connecting Blocks with Round and Rectangular Faceplate Specification ............................. 7

Fig. 5A 625S, 625S6, 625SA, 625TD, 625TD2, 725S, Connecting Blocks ............................................. 8

Fig. 6A 625S, 625S6, 625SA, 625TD, 625TD2, 725S, Connecting Blocks- Specification .............................. 9

Fig. 7A 625FS, 725FS, 725SA, Connecting Blocks ....................... 10

Fig. 8A 625FS, 725FS, 725SA, Connecting Blocks-Specification .................................................. 11

Fig. 9A 625H Connecting Block ........................................ 12

Fig. 1 OA 625H Connecting Block- Specification ........................ 13

Fig.11A 630A, 630B, 730A, 730B, 830A4, Connecting Blocks .............. 14

LIST OF FIGURES (CONTINUED)

Page

Fig. 12A 630A, 630B, 730A, 730B, 830A4, Connecting Blocks-Specification .................................................. 15

Fig. 13A 635B Connecting Block ........................................ 16

Fig. 14A 635B Connecting Block- Specification ......................... 17

Fig. 15A 625D6 Connecting Block ....................................... 18

Fig. 16A 625D6 Connecting Block- Specification ....................... 19

Fig. 17A 625WP4 Connecting Block ..................................... 20

Fig. 18A 625WP4 Connecting Block- Specification ...................... 21

Fig. 19A 74D Connecting Block (Manufactured Discontinued) ............. 22

Fig. 20A 74D Connecting Block- Specification (Manufactured Discontinued) ................................... 23

Fig. 21 A 225A Adapter with 4-Pin Jack ................................... 24

Fig. 22A 225A Installed in a 4-Pin Jack ................................... 24

Fig. 23A 225A Adapter- Specification .................................. 25

Fig. 24A 224A Adapter with 12-Pin Jack ................................. 26

Fig. 25A 224A Adapter Installed in a 12-Pin Jack ......................... 26

Fig. 26A 224A Adapter- Specification .................................. 27

Fig. 27A 267 A "T" Adapter .............................................. 28

Fig. 28A 267A "T" Adapter- Specification .............................. 29

Fig. 29A 1A Converter with 4-Pin Jack ................................... 30

Fig. 30A 1A Converter Installed in a 4-Pin Jack ........................... 30

Fig. 31 A 1A Converter- Specification .................................. 31

BELL SYSTEM MODULAR CONNECTING BLOCKS AND ADAPTERS FOR VOICE AND PERMISSIVE DATA EQUIPMENT

2.1 Introduction

The purpose of this Addendum is to provide certain additional dimensional information on the standard Bell System modular connecting blocks used for the Uniform Service Order Codes (USOCs) associated with voice or permissive (-9 dBm) data equipment. This document supplements the information contained in Appendix 1 Issue 1 "Technical Description Miniature Plugs and JAcks" dated August 1980, by providing dimensional information which describes those features of the Bell System mountings that surround and in some cases cover the standard modular jacks. This information is provided for those designers or manufacturers of communication equipment who plan to affix miniature modular plugs directly to their equipment or apparatus without line cords and are concerned with interfacing with the Bell System hardware used to mount the standard jacks.

The American Telephone and Telegraph Company reserves the right to make whatever changes it deems necessary in the dimensions, tolerances, and requirements of the connecting blocks and adapters as covered in this Addendum, and in the associated product

1

in manufacture. Such changes may be necessary for any reason, including, but not limited to, ongoing technological or operational innovations that may be required to meet manufacturing and/or operating environment conditions.

Pictures of each of the connecting blocks are provided to assist in visualizing the physical appearance of the hardware. Table A provides a description of each of the connecting blocks and adapters and a list of the applicable USOCs.

The electrical w1nng arrangements for the apparatus illustrated are not provided in this document. This information is available in Technical Reference PUB 47101 titled "Bell System Voice and Data Communications Technical Reference - Standard Plugs and Jacks."

It should be noted that this Addendum describes the modular connecting apparatus standardized for use in the Bell System for voice and permissive data equipment. The Bell Operating Companies at their own discretion may be using other connecting apparatus to provide the USOCs discussed.

r

TABLE A

CONNECTING BLOCKS AND ADAPTERS- DESCRIPTION AND APPLICABLE USOCS

Connecting Block or Adapter

625A, 725A Connecting Blocks

625D6 Connecting Block

625F, 725F Connecting Blocks

625S, 625SA, 625TD, 625TD2, 725S Connecting Blocks

625FS, 725FS, 725FSA Connecting Blocks

625H Connecting Block

625WP4 Connecting Block

630A, 630B, 730A, 730B,830A4 Connecting Blocks

Description

Surface Mounted- Bridged Tip and Ring. See Figures 1 A and 2A

Flush Mounting- Dual Jack Outlet for Dual Telephone or Ancillary Device. All six pin positions in each jack are wiredBridged Tip and Ring. See Figures 15A and 16A.

Flush Mounted- Bridged Tip and Ring. See Figures 3A and 4A.

Surface Mounted with protective rotating cover- Bridged Tip and Ring. See Figures SA and 6A.

Flush Mounted with protective rotating cover- Bridged Tip and Ring. See Figures 7 A and 8A.

Flush Mounted- Bridged Tip and Ring on jack positions 1 and 6- for use in hospital critical care areas with equipment conforming to Article 517 of the 1981 National Electrical Code. See Figures 9A and 1 OA.

Outdoor Mounting- Bridged Tip and Ring. See Figures 17A and 18A.

Surface Mounted- for use with Modular wall telephone sets- Bridged Tip and Ring. See Figures 11A and 12A.

2

usoc

RJ 11 C, RJ 12C, RJ 13C, RJ14C, and RJ16X

No USOC Assigned

RJ11C, RJ12C, RJ13C, RJ14C, and RJ16X

RJ11C, RJ12C, RJ13C, RJ14C, RJ16X, and RJ25C


RJ17C


RJ11W, RJ12W, RJ13W, and RJ14W

Connecting Block or Adapter

6358 Connecting Block

740 Connecting Blocks (Manufactured) Discontinued)

625S6 Connecting Block

224A Adapter

225A Adapter

267 A "T" Adapter

1A Converter

TABLE A (CONTINUED)

Description

Surface Mounted- for use with series connected equipment such as exclusion sets, alarm dialers, and automatic dialers. The equipment is placed in series with the telephone line and other station sets when it is connected with an a-position modular plug. See Figures 13A and 14A.

Surface Mounted- Modular jack is wired in all 6-Pin positions- Bridged Tip and Ring. See Figures 19A, and 20A. See Figures 5A and 6A.

Used to adapt a modular telephone set or ancilliary device (up to six positions) to a 12-pin non-Modular jack- Bridged Tip and Ring. See Figures 24A, 25A, and 26A.

Used to adapt a modular telephone set or ancilliary device to a 4-pin non-modular jack- Bridged Tip and Ring. See Figures 21 A, 22A, and 23A.

Tee adapter used to adapt a single modular jack to two Modular jacksprovides a bridged connection to the telephone line in both jacks. See Figures 27A and 28A.

Used to permanently convert a 4-pin nonmodular jack to a 4-position modular jack -Bridged Tip and Ring. See Figures 29A, 30A, and 31 A.

*Subject to effective Tariffs and/or rulemaking.

3

usoc

RJ31X, RJ32X, RJ33X, RJ34X, RJ35X, RJ36X, RJ37X, and RJ38X*

RJ18C*, RJ19C*, and RJ25C

RJA3X

RJA1X

RJA2X

RJA1X

CJ) ~ 0 0 ...J m (!J z 1-0 w z z 0 0 ct ll) N 1'-

c z ct ct ll) N (0

4

A ddendum 1 Issue 2

<( ~

w 0:: ::::> (.!)

LL

I

01

625A AND 725A CONNECTING BLOCK -SPECIFICATION

~F.,o~s

.IW :!; .010 I

I !

2.. 2/0 "!. 015 t---------.1----.1-88 :r. 025"

* f-..- . 387 -----1 I REF I I . !

!:-1

SCIRFAC€' Z ----+----

.,.. .269

[ PEF

SURFACE Q I I . ~00 rt,, II ~

.65"3/f!N IOOS"MIN

~PLUG LfiTCH SURFRCE

l ~~I ~ \ 1

- _ --~- // -._j ~ .tJ~S" b£PTII OF ~IVSeO 7 / /7/ /// / 7

/ /// /~ /BAIEBbAR{)) v / / 7

f()KrtoN

NOTICE: THE AMERICAN TELEPHONE AND TELEGRAPH COMPANY RESERVES THE RIGHT TO MAKE WHATEVER CHANGES IN DIMENSIONS, TOLERANCES, AND REQUIREMENTS ON THIS DRAWING, AND IN THE ASSOCIATED PRODUCT IN MANUFACTURE, THAT MAY BE NECESSARY FOR ANY REASON INCLUDING, BUT NOT LIMITED TO, ONGOING TECHNOLOGICAL OR OPERATIONAL INNOVATIONS THAT MAY BE P.EQUIRED TO MEET MANUFACTURING AND/OR OPERATING ENVIRONMENT CONDITIONS. IF FURTHER INFORMATION IS REQUIRED. PLEASE CONTACT: MANAGER -INSTALLATIOrJ AND MAINTENANCE, FIELD OPERATIONS, AT&T COMPANY, 295 N. MAPLE AVE., BASKING RIDGE, N.J. 07920.

A. *.269 REF, *.389 REF,AND ALL OTHER INTERNAL JACK DIMENSIONS ARE AS SHOWN ON AT&T TECHNICAL DESCRIPTION FIG. 1 AND 8.

B. THIS DRAWING SHOULD NOT BE SCALED. C. "".653 MINIMUM DIMENSION APPLIES TO THE 625A MOUNTED ON A 42A BLOCK AND THE 1.005 MINIMUM DIMENSION

APPLIES TO THE 725A MOUNTED ON A 420 BLOCK.

FIGURE 2A

)> c. -c.

~ CD c: ::::J CDC. NC:

3 .....

m

625F AND 725F CONNECTING BLOCKS WITH ROUND AND

RECT ANGULAR FACEPLATES

FIGURE 3A

)>

-8: = ft) r:::: ~ me. Nr::::

3 ....

-..J

625F AND 725F CONNECTING BLOCK· SPECIFICATION

PLUC LATCH -SuR .FACE

R.CI90

RO'lO

~·~

SECT A-A

r---1

R 030

.158:!..()()5

F"ACEPLillF TI'P

f. •I .ZSB~.o!S !v'bl

SE/ T. . !8.0 r oz> OLD (.. . 8-B - OZ3

NOTICE: THE AMERICAN TELEPHONE AND TELEGRAPH COMPANY RESERVES THE RIGHT TO MAKE WHATEVER CHANGES IN DIMENSIONS, TOLERANCES, AND REQUIREMENTS ON THIS DRAWING, AND IN THE ASSOCIATED PRODUCT IN MANUFACTURE, THAT MAY BE NECESSARY FOR ANY REASON INCLUDING, BUT NOT LIMITED TO, ONGOING TECHNOLOGICAL OR OPERATIONAL INNOVATIONS THAT MAY BE REQUIRED TO MEET MANUFACTURING AND/OR OPERATING ENVIRONMENT CONDITIONS. IF FURTHER INFORMATION !S REQUIRED, PLEASE CONTACT: MANAGER • INSTALLATION AND MAINTENANCE, FIELD OPERATIONS, AT&T COMPANY, 295 N. MAPLE AVE., BASKING

RIDGE. N.J. 07920. A. *.269 REF.* .389 REF, AND ALL OTHER INTERNAL JACK DIMENSIONS ARE AS SHOWN ON AT&T TECHNICAL DESCRIPTION

FIG. 7 AND 8. B. THIS DRAWING SHOULD NOT BE SCALED. C. **NEW DIMENSION APPLIES TO Pr.ODUCT MANUFACTURED AFTER JULY, 1978

FIGURE 4A

...., ·-1 - - , •.

6255 , 62556, 6255A, 625TD, 625TD2, AND

7255 CONNECTING BLOCKS

Addendum 1 Issue 2

<( 1.0

w a: ::::> (.!)

lL

c.o

6255, 62558, 6255A, 625TD, 625TD2, AND 7255 CONNECTING BLOCK

3.530 MAX.

.480r.OZI-

1

DOOR CLG5£D

15.

I I PLUG LATCH / SUR~ ACE.

S' ALL A'.OUIVD

L 350~ Oil

~

DOOf<----OPEN

2.415 :!.D3S

I

14

r- .690 I <.0/0

' ----+----_

®

! :

,, -~ 38~· -

I REF l ,.. .550-

"!".010

2. 315 MAX

A 1.080!.015

I'

i I

J NOTICE: THE AMERICAN TELEPHONE AND TELEGRAPH COMPANY RESEIWES THE RIGHT TO MAKE WHATEVER CHANGES IN

DIMENSIONS, TOLERANCES, AND REQUIREMENTS ON THIS DRAWING, AND IN THE ASSOCIATED PRODUCT IN MANUFACTURE, THAT MAY BE NECESSARY FOR ANY REASON INCLUDING, BUT NOT LIMITED TO, ONGOING TECHNOLOGICAL OR OPERATIONAL INNOVATIONS THAT MAY BE REQUIRED TO MEET MANUFACTURING AND/OR OPERATING ~NVIRONMEtH CONDITIONS. IF FURTHER INFORMATION IS REQUIRED. PLEASE CONTACT: MANAGER -INSTALLATION AND MAINTENANCE, FIELD OPERATIONS, AT&T COMPANY, 295 N. MAPLE AVE., BASKING RIDGE, N.J. 07920.

A. *.269 REF, *.389 REF, AN~ ALL OTHER INTERNAL JACK DIMEN::IONS ARE AS SHOWN ON AT&T TECHNICAL DESCRIPTION FIG. 7 AND 8.

B. THIS DRAWING SHOULD NOT BE SCALED. C. ** .895 MINIMUM DIMEN~ION APPLIES TO THE 625S MOUNTED ON A 42A BLOCK AND THE 1.232 MINIMUM DIMENSION

APPLIES TO THE 725S, 625TD, 625TD2, 6253A, AND 625S6 MOUNTED ON ANY OF THE FOLLOWING BASES (42B4, 42B6, OR 42E).

FIGURE 6A

)> a.

;;;-a. .,. (!)

c: ::1 (!) a. NC:

3 ......

625FS, 725FS, AND 725FSA CONNECTING BLOCKS

10

Addendum 1 Issue 2

<(

""'" LU a: ::;) C)

LL.

.... ....

625FS, 725FS, AND 725FSA CONNECTING BLOCKS- SPECIFICATION

PLUG LATCH SURFACE

-DOOR CLOSED

'" .~ .. l.0/0

:!'010

---~~I

WALL :I II

1 ; PLUG LATCH 5URt:ACE

.Ror.ot6 ~ ...

ll-.3S11t". 011

L . .,?Or.ov

1 ,.273~.011'

r .. 063

I

WHL L

l -1 so'

llLL AROuND

'~

DOOR OPEN

~.075

j

~ JJ /.()5)

.. [_ i

I

, I l.210r 012

1--.nsr.o~ .160!.010

'HSr oos

.690 t.OIO

.4-+2

I

l- -tLJJ~6:9 .. - _j I REf"

.550 --1

-- 2. 765 MAX.

NOTICE: THE AMERICAN TELEPHONE AND TELEGRAPH COMPANY RESERVES THE RIGHT TO MAKE WHATEVER CHANGES IN DIMENSIONS, TOLERANCES, AND REQUIREMENTS ON THIS DRAWING, AND IN THE ASSOCIATED PRODUCT IN MANUFACTURE, THAT MAY BE NECESSARY FOR ANY REASON INCLUDING, BUT NOT LIMITED TO, ONGOING TECHNOLOGICAL OR OPERATIONAL INNOVATIONS THAT MAY BE REQUIRED TO MEET MANUFACTURING AND/OR OPERATING ENVIRONMENT CONDITIONS. IF FURTHER INFORMATION IS REQUIRED, PLEASE CONTACT: MANAGER -INSTAllATION AND MAINTENANCE, FIELD OPERATIONS, AT&T COMPANY, 295 N. MAPLE AVE., BASKING RIDGE, N.J. 07920.

2.6!i0 ! 017

<f..S/5 1"1AX

A. *.269 REF, *.389 REF,AND ALL OTHER INTERNAl JACK DIMENSIONS ARE AS SHOWN ON AT&T TECHNICAL DESCRIPTION FIG. 7 AND 8. B. THIS DRAWING SHOULD NOT BE SCALED.

FIGURE BA

)>

;;;§: "' CD c: ;:, CD Q. Nc:

3 ....

625H CONNECTING BLOCK

12

Addendum 1 Issue 2

.

.... w

PLUG LATCH-

SURFACE

625H CONNECTING BLOCK- SPECIFICATION

--DOOR CLOSED

l r-.l73:!:.010

:- I"" I

-- ~

so" I<LL AHOUNO

-~

DOOR OPEN

,.075

1_

~--.--__i I ~ 1 :390

--Fo~o . 26q

_j REF

---~--.205 ~.ozo ---.- H5!: oos

-.690 _ _, .#2 t.OIO

'

-~-r I

l.6!i"O ~.017

•. 515 1'1AX

.!i"!i"!i"~.ow

PLUG LATCHSURFACE

1.05S"

----1-1---+----+ ___l

WALL

."-Zo:!: .016 ~ oi..l

l.l-.3Sl1t". 011

L . .,?Or.ou

WALL rio ___ -

11

1 RAISEO.OSO Fl<o/'1 so T""7W1

I I 5V~~ACE

~.210~.012

I.--.Z75:!:.0~ .160t.()IO L----- ~~ u~-389~- __ j I Rue

.550 -.I

-- 2.765 MAX -

NOTICE: THE AMERICAN TELEPHONE AND TELEGRAPH COMPANY RESERVES THE RIGHT TO MAKE WHATEVER CHANGES IN

DIMENSIONS, TOLERANCES, AND REQUIREMENTS ON THIS DRAWING, AND IN THE ASSOCIATED PRODUCT IN

MANUFACTURE, THAT MAY BE NECESSARY FOR ANY REASON INCLUDING, BUT NOT LIMITED TO, ONGOING

TECHNOLOGICAL OR OPERATIONAL INNOVATIONS THAT MAY BE REQUIRED TO MEET MANUFACTURING AND/OR

OPERATING ENVIRONMENT CONDITIONS. IF FURTHER INFORMATION IS REQUIRED, PLEASE CONTACT: MANAGER -

INSTALLATION AND MAINTENANCE FIELD OPERATIONS AT&T COMPANY 295 N. MAPLE AVE. BASKING

RIDGE, N.J. 07920. ' ' ' '

A. *.269 REF. *.389 REF. AND All OTHER INTERNAL JACK DIMENSIONS ARE AS SHOWN ON AT&T TECHNICAL DESCRIPTION

FIG. 7 AND 8. B. THIS DRAWING SHOULD NOT BE SCALED.

FIGURE 1 OA

)> a.

~g. c :::J (t) a. Nc

3

...&

~

~II

630A, 6308 , 730A, 7308, AND 830A4 CONNECTING BLOCKS

Note: The 730A And B Connecting Blocks Have a Plug Ended Cord Egressing From The Bottom Edge Of The Faceplate

FIGURE 11 A )> c. - c.

1:: CD r::: ::::J CDC. 1\)r:::

3 · ...&

.... C1

630A, 6308, 730A, 7308 , AND 830A4 CONNECTING BLOCKS - SPECIFICATION

,!"15 MAl

A

c 1 rJ··R" + -JOtO NIAX -----

Z.fS" -- r

0-ooJ.

't>'''

- 11Z~ -

")f,[,!'.A:J

[_

I: c===-~ I ,.-

.... 'V

(§) l 16)

@J 06<; ~ :J<.;<;

PU)I;. LA Tc H ~uR.FAI:E

~~ f·', . H\

,-.;·

I ~ l6'1

"" VI[W A-A

.; s -'

~

-0

?,)·

; '15~

WALL

•• }If:" 4520 000 4,..,-.,..I'IJA~O

;-[,Y/-1.:. ,. LJ,. \- I I ) . I I

.1 '-. ~

14; ,, r 1 no i"fAot

03!l~.oos TYP

__ L 27,

___j T- .,.----__ 8

'" ....

11'1£....,· c

1:¢?1 I I ~-,, - __!;--->~ SEE .r>rE 0

' J 1 I I ' I I

,_,,_, ~ !- "' ~

pd -SUilFACl •,,nRC E(;J{ESS

~ .,,,,;, .. eoo - ~,., .. oo-r

8ACiff'/0i1Rf_.

VIEW 8-B

L1 ~"=P70 IJ '"'-

L ' l

________ ";~.; - ___ _j ~K«<f/4K~ .c2o'"rM~

o.o· ooc 'l j • - ~~=- ~ I ~ HO j J 1- '""'

NOTICE: THE AMERICAN TELEPHONE AND TELEGRAPH COMPANY RESERVES THE RIGHT TO MAKE WHATEVER CHANGES IN DIMENSIONS, TOLERANCES, AND REQUIREMENTS ON THIS DRAWING, AND IN THE ASSOCIATED PRODUCT IN MANUFACTURE, THAT MAY BE NECESSARY FOR ANY REASON INCLUDING, BUT NOT LIMITED TO, ONGOING TECHNOLOGICAL OR OPERATIONAL INNOVATIONS THAT MAY BE REQUIRED TO MEET MANUFACTURING AND/OR OPERATING ENVIRONMENT CONDITIONS. IF FURTHER INFORMATION IS REQUIRED. PLEASE CONTACT: MANAGER -INSTALLATION AND MAINTENANCE, FIELD OPERATIONS, AT&T COMPANY, 295 N. MAPLE AVE., BASKING

VI[ Y.... ( L h-"\C£ S

RIDGE, N.J. 07920. A. *.269 REF, *.389 REF;AND All OTHER INTERNAL JACK DIMENSIONS ARE AS SHOWN ON AT&T TECHNICAL DESCRIPTION

FIG. 7 AND 8. B. THIS DRAWING SHOULD NOT BE SCALED. C. PL\NE "A" IS DEFINED AS THE TOP SURFACE OF THE MOUNTING PLATE. THE TOLERANCE SHALL APPLY AT A DISTANCE OF

0.1120 % 0.0001 INCH FROM THE CENTER OF THE STUD. D. ON THE 730A AND B A PLUG ENDED CORD EGRESSES THROUGH THE BOTIOM EDGE OF THE FACEPLATE.

FIGURE 12A

,, ~M A

)> a.

~~ c :::s CD 0. Nc

3 .......

~ 0 0 .J al

" z -~ 0 w z z 0 0 m Lt) ('I) CD

16

Addendum 1 Issue 2

<( ('t) T"""

w a: ::> (!)

~

_. -...!

6358 CONNECTING BLOCK- SPECIFICATION

.8S5:.

,----- PLUG LATCH 5ui'II'IICE

(I 'p, ___j 210!.010

l _______ ~==----r- ~o---r '1 _l..J.._ __ ~ <. 020

--.4C(Jr.oz.t~

gJ

.86ot.OIO

-I 078

*.46' If£.

9 -r

.b35 M

. 51'J fl, /!.) /J&'l<* NOW

__ t

NOTICE: THE AMERICAN TELEPHONE AND TELEGRAPH COMPANY RESERVES THE RIGHT TO MAKE WHATEVER CHANGES IN DIMENSIONS, TOLERANCES, AND REQUIREMENTS ON THIS D!1AWING, AND IN THE ASSOCIATED PRODUCT IN MANUFACTURE, THAT MAY BE NECESSARY FOR ANY REASON INCLUDING, BUT NOT LIMITED TO, ONGOING TECHNOLOGICAL OR OPERATIONAL INNOVATIONS THAT MAY BE REQUIRED TO MEET MANUFACTURING AND/OR OPERATING ENVIRONMENT CONDITIONS. IF FURTHER INFORMATION IS REQUIRED. PLEASE CONTACT: MAto!AGER -INSTALLATION AND MAINTENANCE, FJELD OPERATIONS, AT&T COMPANY, 295 N. MAPLE AVE., BASKING RIDGE, N.J. 07920.

A. *.269 REF, *.469, REF, AND ALL OTHEP. INTERNAL JACK DIMENSIONS ARE AS SHOWN ON AT&T TECHNICAL DESCRIPTION FIGURES 18 & 19.

B. THIS DRAWING SHOULD NOT BE SCALED. C. ""*NEW DIMENSION APPLIES TO PRODUCT MANUFACTURED AHER APRIL , 1981, WHICH DEPICTS THE CONNECTING BLOCK,

MOIJNTED ON A NEW ENCLOSED 42C PLASTIC BASE.

FIGURE 14A

l> a. -a.

~ CD c: :::J CD 0. NC:

3 _.

62506 CONNECTING BLOCK

555

18

Addendum 1 Issue 2

.... tO

62506 CONNECTING BLOCK -SPECIFICATION

-1 ,.063e 004

~~~

V} f '

~ALL-~ ll I TYP I I

r 2.76S MAX=! l-----15"18,003! I

hr1[ I l111( z .61! ()I)

1 1111 ~III- -. I

I 15§!.010

PL VG LATCH --- t:t-'SURFAC~- '5{1r f5»1 i _T__t

-217 REF

1'8

'~' OIO I II II II I

~ ~~~ /'1AX

1

1

l j

I II~+

I

. '

~I

- -. .. . •1e9 u• Z' TYP

-j 1?7 1'0

! -~ ~ ~ 't22Z_ 0zs-__j 1 I 328,014

' 'I ~ ~ .16Z~* ::~

_J L.28J:.o0'1

NOTICE: THE AMERICAN TELEPHONE AND TELEGRAPH COMPANY RESERVES THE RIGHT TO MAKE WHATEVER CHANGES IN DIMENSIONS, TOLERANCES, AND REQUIREMENTS ON THIS DRAWING, AND IN THE ASSOCIATED PRODUCT IN MANUFACTURE, THAT MAY BE NECESSARY FOR ANY REASON INCLUDING, BUT NOT LIMITED TO, ONGOING TECHNOLOGICAL OR OPERATIONAL INNOVATIONS THAT MAY BE REQUIRED TO MEET MANUFACTURING AND/OR OPERATING ENVIRONMENT CONDITIONS. IF FURTHER INFORMATION IS REQUIRED, PLEASE CONTACT: MANAGER -INSTALLATION AND MAINTENANCE, FIELD OPERATIONS, AT&T COMPANY, 295 N. MAPLE AVE., BASKING RIDGE, N.J. 07920.

A. *.269 REF, *.389 REF, AND ALL OTHER INTERNAL JACK DIMENSIONS ARE AS SHOWN ON AT&T TECHNICAL DESCRIPTION FIG. 7 AND 8.

B. THIS DRAWING SHOULD NOT BE SCALED.

FIGURE 16A

)>

u;-8: en CD c: ;:, CDC.. "'c: 3 ....

625WP4 CONNECTING BLOCK

20

Addendum 1 Issue 2

w a: ::J ~ u..

N ....

625WP4 CONNECTING BLOCK - SPECIFICATION

.,.;ALL.

CXIrLEr BOt OR IN'ALL

-GASKET APPRO X. TNC~£~5 .. CI60

- OVTLET SOt. oR WN...L

~-~~;, THJC}(E.Ss >=,060

.23/!.0iq

3.250 :.005

CORD I~ I. 000- 16 TNO-/

Ill

WALL'- I !.-.--. 350:!. oos-

--~~1>00~ SH~ AP,ROX APP!l'OX

~ I

I

~j ~.· ~- -t -~i -- _t __ 4' -·· __ -+- __ _ _ _ r ,_'£4D

! ~

i 121~.003

i I I

---+--J-1 -@

44148 MAX

I

[ b~ ~ ~ L .. ~. ~--J (]()3----! REF I

/.87o~ .00~ - ;-------44-0.!.008

Z. 760 MAK I

NOTICE: THE AMERICAN TELEPHONE ANO TELEGRAPH COMPANY RESERVES THE RIGHT TO MAKE WHATEVER CHANGES IN




OPERATING ENVIRONMENT CONDITIONS. IF FURTHER INFORMATION IS REQUIRED, PLEASE CONTACT: MANAGER

INSTALLATION AND MAINTENANCE, FIELD OPERATIONS, AT&T COMPANY, 295 N. MAPLE AVE., BASKING

RIDGE, N.J. 07920.

A. *.269 REF, *.389 REF, AND ALL OTHER INTERNAL JACK DIMENSIONS ARE AS SHOWN ON AT&T TECHNICAL DESCRIPTION


C. THIS DIMENSION AND THE COMPLIANCE OF THE SPLIT RUBBER GROMMET MUST ALLOW INSERTION AND LATCHING OF

A STANDARD &-POSITION MODULAR PLUG AS SHOWN ON AT&T TECHNICAL DESCRIPTION FIG. 2 AND 3.

D. **FRONT VIEW IS SHOWN WITHOUT THE PLASTIC SCREW-ON CAP AND SPLIT RUBBER GROMMET. THE 1.500 AND

.865 DIMENSIONS WILL VARY ACCORDING TO HOW TIGHT THE PLASTIC SCREW-ON CAP IS ASSEMBLED.

FIGURE 18A ___ .. __ _ l> c.

~g. c: :I Ctl c. .....,c:

3 ....

22

Addendum 1 Issue 2

N w

SI0£7 ~~·

.710

740 CONNECTING BLOCK (MD)

2. 750~.030

.12/~.007

.880 .111/N

J

P/..U{;

LATCH SVRFA~E







RIDGE, N.J. 07920.

A. *.269 REF, *.389 REF, AND ALL OTHER INTERNAL JACK DIMENSIONS ARE AS SHOWN ON AT&T TECHNICAL DESCRIPTION


FIGURE 20A

--·--

)> c.

-c. ~ ~ c ::l CD C. Nc

3 ~

II

N .;:..

225A ADAPTER WITH 4-PIN JACK

FIGURE 21 A

225A ADAPTER INSTALL ED IN A 4-PIN JACK

FIGURE 22A

-

)> c.

ig. 1:: :I CI)C. Nl::

3 ....

1\,) (11

225A ADAPTER - SPECIFICATION

4 f'RON6 CONNECTOR

R ':1=:1 I

O~IENTATI0/11

FEATuRE

R

162'1 ~ OZO OLD

t.+++f015 NCW

Pt.vr; I.A1Df j I "269

5URFAC E =:--:t1-1= i REF

<::: •

.07of.O~OLO .llo::.tJt7NEW-

r-- li '73 .,_ ()ti.!J:JLO

.:S3;.0zz NEJ' zos~o16 01.0

.·116.!' Ol!" NEW






INSTALLATION AND MAINTENANCE, FIELD OPERATIONS DISTRIBUTION SERVICES, AT&T COMPANY, 295 N. MAPLE AVE.,

BASKING RIDGE, N.J. 07920. A. *.269 REF, *.389 REF,AND ALL OTHER INTERNAL JACK DIMENSIONS ARE AS SHOWN ON AT&T TECHNICAL DESCRIPTION

FIG. 7 AND 8. B. THIS DRAWING SHOULD NOT BE SCALED. C. BODY SHOWN DEPICTS NEW ADAPTER. D. **NEW DIMENSION APPLIES TO PRODUCT MANUFACTURED AFTER FEBRUARY, 1980.

FIGURE 23A

-~ -1 -1 ., -~ •·

)> a.

~g-c ::l CD Q. Nc

3 ~

N 0)

224A ADAPTER WITH 12-PIN1 JACK

• •

• • '... . .

..._

FIGURE 24A

224A ADAPTER INSTALL ED IN A 12-PIN JACK

FIGURE 25A )> c..

-c.. ~ CD c: ;::, CD C.. NC:

3 .....

n,

N

"

__ , _,

224A ADAPTER - SPECIFICATION

6 PJI?tW6 CONIIIEC!IJR

//

PLUG t.ATCH SUI( FACE

R--~

.CJZ>.!'.OZ9/ L f.-

I?

.92.3 '0/9 --~..,






INSTALLATION AND MAINTENANCE, FIELD OPERATIONS, AT&T COMPANY, 295 N. MAPLE AVE., BASKING RIDGE, N.J. 07920.

A. *.269 REF, *.389 REF, AND ALL OTHER INTERNAL JACK DIMENSIONS ARE AS SHOWN ON AT&T TECHNICAL DESCRIPTION FIG. 7 AND 8.

B. THIS DRAWING SHOULD NOT BE SCALED.

FIGURE 26A _, ~ - - _, _, ~ ~ ~ ~ -~ ., ., - - • I

)> a. -a.

~ CD s:::: ::I CDO. NS::::

3 .... .:

a: w ~ c. < c < ... ... ~ .. .. < ..... CD N

28

Addendum 1 Issue 2

<( ,..._ N

w a: :::::> C)

u.

I

~

I

N c.o

267A ''T'' ADAPTER -SPECIFICATION

PLOG LATCI-I-+--r-

SvR.f:AcE .ZJ/1".009 I .. ~

.316f.007- I• ~

-[SNAP-IN SLIDE WITH TRAVEL (y) ADEQUATE TO

RELEASE PLUG CATCH WHEN IN JACK.

(y) .4/0i:OZO 1?.~0 TYP







RIDGE, N.J. 07920.

A. *.260, .380, .269, .389, AND ALL OTHER PLUG AND JACK DIMENSIONS ARE AS SHOWN ON AT&T TECHNICAL DESCRIPTION

FIG. 2, 3, 7, & 8. B. DEVIATION FROM THESE DIMENSIONS CAN INHIBIT INSTALLATION INTERFACE WITH SOME OF THE BELL SYSTEM PLUGS AND

JACKS. C. THIS DRAWING SHOULD NOT BE SCALED.

FIGURE 28A -· -· -· -· ~ -1 - ., ~ )> 0..

~g. c: ::l CD 0.. .....,c:

3 _.

w 0

1A CONVERTER WITH 4-PIN JACK

FIGURE 29A

1A CONVERTER INSTALLED IN A 4-PIN JACK

FIGURE 30A )> c..

;;;-c.. "' CD r:::: :::s CDC.. Nr::::

3 ~

w ....

1A CONVERTER -SPECIFICATIONS

4 !'ffON& CONNECTOR

I? /7H I PLI/6 LATCH /I I .J 51/RFAf.£

l

ORJENniT!ON R"ATW?E

~

.A• .703:!.022---~





OPERATING ENVIRONMENT CONDITIONS. IF FURTHER INFORMATION IS REQUIRED, PLEASE CONTACT: MANAGER

INSTALLATION ANO MAINTENANCE, FIELO OPERATIONS, AT&T COMPANY, 295 N. MAPLE AVE., BASKING

RIOGE, N.J. 07920. A. *.269 REF, *.389 REF, AND ALL OTHER INTERNAL JACK DIMENSIONS ARE AS SHOWN ON AT&T TECHNICAL DESCRIPTION


FIGURE 31 A

)> _§: ~ CD c: ::I co a. Nc:

3 .... -·------J-1 _____ _

bell system technical reference

Documents