background image

BELL  SYSTEM  PRACTICES 

Plant  Series 

SECTION  503-550-1 01 

Issue  3,  December  1970 

AT&TCo  Standard 

TELEPHONE SETS-2671 B 1M 

Call·a·matlc® 

IDENTIFICATION,  ASSEMBLY,  CONNECTIONS,  OPERATION,  AND  MAINTENANCE 

1. 

GENERAL 

1.01 

This  section  is  reissued  to: 

eAdd  information  on  635A5  key,  P-23F503 

collar,  and  E-5837 key designation  tabs. 

eChange  index  space  color  on  cartridge  tape 

from  light to  dark  color,  Fig.  1,  3,  5,  and  8. 

Fig.  142671B1M  Telephone Station  With Speakerphon ... 

2. 

IDENTIFICATION 

Purpose 

2.01 

This  set  provides  for  automatic  dialing  of 

up to 500 prerecorded,  fourteen  digit telephone 

numbers  on  CO  or  PBX  line  circuits. 

Application 

2.02 

The  2671B1M  telephone  set  can  be  equipped 
as  follows: 

eSingle  line  s e r v ice- w ith  or  w it h out 

speakerphone,  A  lead  control,  and  station 
busy  lamp. 

eFive  line  pickup  and  hold-in  lA,  1A1,  1A2, 

or  6A  KTS  with  or  without  speakerphone 
and  station  busy lamp. 

Note: 

Speakerphone  can  be  either  internal 

or  external. 

Ordering  Guide 

Note: 

When  ordering  a  2671B1M  telephone 

set,  depending  on  the  services  required  as 

shown  in  Table  A,  coded  apparatus  listed  as 

modular  items  must  be  separately  ordered 

and  installed 

to 

furnish  a  complete  telephone 

station  as  shown  in  Fig.  1. 

eSet,  Telephone,  2671B1M-Consists  of  a 

3 5 S 3 A   T O U CH -T O N E ®   d i a l,  5 1 B  
(CA1L-A-MATIC® set) dial, 635A2 or .635A541 
key,  425K  network,  PIA  ringer,  165A 
adapter,  and  P-90D212  cord  assembly. 

(a) 

Modular  Items  (see  Table  A) 

eCord  Mounting,  D10S-*,  D10T-*,  D20 1-*, 

D20M-*,  or  D50AB-* 

eCartridge,  1B1  (250  entries)  or  1B2  (500 

entries}-includes an alphabetical designation 
strip  (KS-2016614  on  the  1B1  cartridge  and 

KS-2016611 on  the  1B2 cartridge). 

eSet, Hand,  G12A-*  and  Cord, H4DB-* 

American  Telephone  and Telegraph Company,  1970 

Printed  in  U.S.A. 

Page  1 

BSP 

S03-550-101-i03_1970-12·0LJP&  Scanned by  Frank Harrell, (Cowboy  Frank) Castle Rock, Colorado  Apr 29,2012  21:35:53 

Summary of Contents for Call-a-matlc 2671B1M

Page 1: ...1A2 or 6A KTS with or without speakerphone and station busy lamp Note Speakerphone can be either internal or external Ordering Guide Note When ordering a 2671B1M telephone set depending on the servic...

Page 2: ...5081 FACEPLATE Page 2 39A POWER UNIT MOUNTING CORDS Fig 2 Station Modular Arrangement 2671B1M Telephone Set BSP S03 550 101 i03_1970 12 02 jpg Scanned by Frank Harrell Cowboy Frank Castle Rock Colorad...

Page 3: ...er e1oudspeaker 760A phone e Unit Control 5 5 B or modified5 5A eTransformer 2012 B eSix service configurations by addition of modular and optional items to 2671B1M telephone set Table A eChoice of ca...

Page 4: ...Requires a P 90D234 relay assembly and external 6668 transmitter Relay assembly is in stalled in place of 6748 transmitter Operating Features a 518 Dial eRECORD button when pulled places 518 dial in r...

Page 5: ...front of the network Fasten guard with two screws supplied with the telephone set and connect leads as shown in Table G 3 Mount the KS 8109L2 buzzer if required to the plastic block on left side of 35...

Page 6: ...ided the collar buttons and caps must be removed from the 63 5 type key before installing the250 type faceplate Note 63 5 type key is left in place but is electrically inoperative Rewire set as shown...

Page 7: ...e in Typewriter and that the plug is placed in the proper receptacle Either error will cause circuitry problems and extreme difficulty in removing the plug 3 06 When selecting a location for installin...

Page 8: ...portion island between YZ and 1 appears 4 Peel off existing designation strip starting at island 5 Start new strip at island and apply while rotating thumbwheel 6 Replace faceplate which should resto...

Page 9: ...one is heard depress CALL button again to complete dialing ISS 3 SECTION 503 550 101 Note If it is desired to bypass the access code for example with night service push CALL button before lifting hand...

Page 10: ...replacing set install customer s indexed cartridge in new set to avoid necessity of entering listings on new cartridge 5 04 If51B dial is not operating properly 1 Check power supply to set 2 Look for...

Page 11: ...store BR V key lead from 8 of front terminal board Connect stored V 0 key strap to 8 of front board When internal speakerphone is furnished disconnect insulate and store Y G G Y hold lamp leads from...

Page 12: ...PHONE LEAD SUPPLY MTG CD CONDUCTOR SET TERMINAL DESIGNATION TERMINAL PIN COLOR J2 AC AC 41 Y BL 16 AC AC 16 BL Y 14 COM GRD 25 S V 17 Caution Proper supply connections must be made as shown in Table F...

Page 13: ...HONE AI LEAD AT EQUIPMENT 4 IF POLARITY GUARD IS REQUIRED SEE TABLE G r IJ I WI R SI 5 R IS YI GJ BL R T q FRONT TERMINAL BOARD NOTE II 0 0 0 6 NOTE 5 NOTE 1 0 7 L RO R4 R2 K RS Ql w A a_ R7 R3 H RB l...

Page 14: ...CONNECTOR 4 IF POLARITY GUARD IS REQUIRED SEE TABLE G 5 LEADS ARE INSULATED AND STORED AND MUST BE TERMINATED AS SHOWN INSULATE AND STORE OPTIONS lA KTS IAI OR IA2 KTS 20128 TRANSFORMER FRONT TERM BOA...

Page 15: ...AND P 900212 CORD ASSEMBLY ARE OENTICAL 2 LINE SWITCH OPERATING SEQUENCE abBREAKS be MAKES de MAKES lq BREAKS WHEN RESTORING HANDSET d MUST BREAK BEFORE be BREAKS INSULATE AND STOR t SPARE TERMINAL OR...

Page 16: ...BLI S V REAR TERMINAL BOARD 900212 CORD SSEMSLY 050A8 MT G CORD EXTERNAL I SEE NOTE I FIGIMI I 1 I I 45 2021 4644 41 16 25 49 47 17 22 42 I 23 26 27 28 3 4 29 5 50 31 6 1 32 8 33 54 9 10 35 H 36 3712...

Page 17: ...8244318 H 1 ___ h 50 2 23 26 27283 4 Jfujuj _ j J f _j_lj _fJ J 11 u 1 I 1 1 I t 11 RINGER 39A POWER SPEAKERPHONE IA II I OR IA2 LEADS SUPPL1 LINE CKT 29 5 30 31 6 7 32 833 34 9 10 35 II 36 37 1213 19...

Reviews: