Total files: 18868 Total size: 29.10 GB
Division Title
000Documentation General Information and Specifications (94 files / 397.56 MB)
001Reserved for Company - Issued (16 files / 10.30 MB)
002Administrative Practices (93 files / 142.05 MB)
004Number Assignments to be Made Locally (3 files / 0.34 MB)
005Abbreviations, Definitions, Drawing, Requirement Tables, Specifications, and Symbols (51 files / 174.49 MB)
006Graphic Media Systems and Standards (17 files / 13.15 MB)
007Information Systems (141 files / 147.00 MB)
010General Methods (266 files / 327.07 MB)
015Work Units (26 files / 32.13 MB)
020General Information (6 files / 0.60 MB)
024Amplifiers, Controllers, Control Units, Regulators, Electron Tubes (146 files / 84.33 MB)
026Circuit Breakers, Compensators, Contactors, Control Panels, Fuses and Mountings, Magnetic Switches, Selectors and Starters (116 files / 163.83 MB)
028Autotransformers, Bells, Buzzers, Dials, Dial Adapters and Mountings, Gongs, Head Telephone Sets, Headsets, Potentiometers, Rheostats, Ringers, and Sounders (83 files / 86.49 MB)
030Calculagraphs, Call Timing (221 files / 304.34 MB)
032Capacitors, Connectors, Cords, Core Reels, Diodes, Drops, Jacks, Keys, Lamps, Plugs, Resistors, Signals, Sockets, Thermistors, Transistors, and Varistors (263 files / 133.95 MB)
034Distributors, Regenerators (29 files / 69.41 MB)
040Relays (240 files / 282.24 MB)
065Miscellaneous Equipment and Materials (64 files / 27.89 MB)
067Concentrators (72 files / 50.43 MB)
069Apparatus and Equipment Cabling, Wiring, Cleaning, Treating, etc. Methods (100 files / 91.46 MB)
074Tools (376 files / 48.20 MB)
075Tools and Materials (Common Usage) - Maintenance (51 files / 27.24 MB)
076Tools and Materials - Switching Systems and Power Maintenance, Selection and Use (10 files / 11.44 MB)
080Tools and Materials - Customer Equipment (78 files / 45.67 MB)
081Tools and Materials - Outside Plant (283 files / 260.13 MB)
084Gauges, Electrical Indicating Instruments, and Meters (10 files / 1.53 MB)
085Gauges (Common Usage) - Maintenance, Selection, and Use (4 files / 1.32 MB)
100Test Equipment, Electrical Indicating Instruments and Meters (Common Usage) Maintenance, Selection, and Use (42 files / 82.84 MB)
102Test Equipment, Electrical Indicating Instruments and Meters (Switching Systems and Power) - Maintenance, Selection and Use (1 file / 0.05 MB)
103Transmission Test Equipment (102 files / 154.79 MB)
104Radio Test Equipment (21 files / 12.37 MB)
105PBX and Station Test Equipment (10 files / 9.21 MB)
106Electrical Test Equipment - Outside Plant (22 files / 12.82 MB)
107Data and Teletypewriter Testing (2 files / 5.63 MB)
155Alternators, Engine-Alternators, Gas Turbine Alternators, Tone Alternators, Tone Machines, Ringing and Coin Control Generators, Charging Generators, and Motor-Generators (43 files / 41.05 MB)
157Batteries (73 files / 77.63 MB)
159Engines and Engine Sets, Motors, Dynamotors, and Drives (19 files / 57.88 MB)
161Speed Reduction Units, Converters, Inverters, Air Dryers, Compressors, Compressor-Dehydrators, Waveguide Dehydrators, Exhauster Sets, Fans, Tube Cooling Systems, Ventilating Equipment, Call Announcer Machines (24 files / 26.57 MB)
163Interrupters, Ringing Machines, and Pole Changers (9 files / 4.88 MB)
164Powerware (Post-Divestiture) (2 files / 6.57 MB)
167Power Plants, Power Units, and Power Supplies (134 files / 209.93 MB)
169Rectifiers and Filament Supplies (204 files / 149.08 MB)
171Miscellaneous Power Circuits and Equipment (26 files / 15.77 MB)
179Signaling Circuits and Associates Ringer Circuits (142 files / 193.43 MB)
190Operations Support Systems Operation, Maintenance, and Administration (185 files / 405.15 MB)
193Computer Applications Software Support Products (3 files / 5.25 MB)
200Switching Systems (3 files / 1.57 MB)
201Central Office Supplemental Information (489 files / 715.59 MB)
205Automatic Data Test Circuits (3 files / 0.63 MB)
210Service Observing and Plant Traffic Desks (30 files / 15.37 MB)
211No. 1, 3, 5, and 6 Toll Offices, No. 1, 3, 5, and 6 Toll Switchboards and No. 6A Teletypewriter Switchboards (5 files / 3.50 MB)
212No. 4A and 4M Toll Switching Systems (36 files / 39.11 MB)
213No. 1 Accounting Center - Automatic Message Accounting System (2 files / 0.64 MB)
215Panel Offices (78 files / 454.17 MB)
216No. 1 Crossbar Offices (261 files / 236.92 MB)
218No. 3, No. 5, and No. 5A Crossbar Offices (474 files / 313.84 MB)
220Crossbar Tandem Offices (16 files / 3.24 MB)
225Testing Information Applying to Specific Step-By-Step and Community Dial Offices (28 files / 7.73 MB)
226Equipment Common to More Than One Type - Step-By-Step and Community Dial Office (318 files / 140.74 MB)
227General and Testing Information Applying to Intertoll Dialing, CAMA, AMA, ANI, TOUCH-TONE Calling and Common Control Equipment - Step-by-Step Offices (56 files / 57.57 MB)
2311 and 1A ESS Switches (208 files / 310.11 MB)
2322ESS (240 files / 353.79 MB)
2333ESS (131 files / 498.77 MB)
2344ESS (193 files / 725.65 MB)
2355ESS-2000 Switch Digital Switching System (21 files / 107.94 MB)
241Nortel Switches (19 files / 35.91 MB)
250Operator and Traffic Service Positioning Systems (1 file / 0.30 MB)
252Traffic Management Systems (59 files / 78.85 MB)
254Stored Program Control (90 files / 257.49 MB)
255Processor Controlled and Ancillary Systems DATAKIT 10A Remote Switching, 1 Packet Switching, And Database Systems (49 files / 64.03 MB)
256Common Channel Signaling System (CCSS) (13 files / 31.82 MB)
270Advanced Intelligent Network (A-I-Net)/Advanced Network Services (ANS) Products (1 file / 0.35 MB)
300Transmission Systems and Testing Cross-Reference List (6 files / 2.65 MB)
301Transmission Performance Measurement Plans (41 files / 18.87 MB)
302Transmission Test Line Directories (16 files / 6.08 MB)
304Transmission Data (203 files / 51.72 MB)
309Switched Services Networks (25 files / 21.57 MB)
310Non-switched Special Services Systems (123 files / 118.85 MB)
311Switched Special Services Systems (28 files / 40.60 MB)
312Private Line Data Systems and Services (73 files / 98.50 MB)
313Voice, Data, and Video Transmission Systems (14 files / 22.01 MB)
314Digital and Analog Data Transmission Systems (230 files / 181.05 MB)
318Television Systems (18 files / 14.78 MB)
320Program Transmission Systems and Services (25 files / 14.72 MB)
330Cable and Open-Wire Testing and Trouble Location Methods (25 files / 18.92 MB)
331Transmission and Noise Testing, Central Office PBX Customer Lines and Equipment (21 files / 17.71 MB)
332Voice-Frequency Telephone Repeaters, Pilot Wire Regulators, Echo Cancellers/Suppressors, Composite Sets, and Associated Equipment (249 files / 176.27 MB)
333Interoffice Signaling Systems and Testing (7 files / 19.26 MB)
356Broad Band Carrier - Common Equipment Components Type J, K, and L Carrier Telephone Systems, Analog Multiplex Terminal Equipment (205 files / 98.55 MB)
357Wire Line Entrance Links and Broadband Entrance Links and Interconnection (1 file / 4.08 MB)
359L3, L4, L45, L5, and L5E Carrier (1 file / 2.28 MB)
361Service Center Tests Type N, O, and ON Carrier Systems (1 file / 3.25 MB)
362Type N, O, and ON Carrier Telephone Systems and Associated Equipment Components (271 files / 276.10 MB)
363Loop Transmission Systems (396 files / 641.08 MB)
365Digital Transmission Systems (453 files / 1921.45 MB)
400Radio Administration (62 files / 42.12 MB)
402Antennas, Transmission Lines, and Waveguide (84 files / 70.31 MB)
403Coastal Harbor, High Seas, Overseas, And Emergency Point-to-Point Radio (53 files / 55.24 MB)
404Manual Mobile Radio (8 files / 1.48 MB)
405MJ, MK, and ML Mobile Radiotelephone (2 files / 0.46 MB)
408Narrowband Auxiliary Channel And Other Non-Lucent Technologies Radio Equipment And TV Off-The-Air Pick-Up Services (1 file / 0.15 MB)
409TE, TJ, TL, and TM Microwave Radio (53 files / 75.98 MB)
410TD-2 Microwave Radio (2 files / 2.81 MB)
411TD-3 Microwave Radio (107 files / 73.39 MB)
415TD-3D Microwave Radio (7 files / 16.65 MB)
4173A-Radio Digital Systems (1 file / 0.04 MB)
420Microwave Radio - Common Equipment (4 files / 1.06 MB)
422Common Microwave Radio (8 files / 18.14 MB)
460General Information, Customer Information, Customer Equipment (70 files / 198.25 MB)
461Wiring and Cabling Customer Equipment (175 files / 319.26 MB)
462Drop and Block Wiring Dedicated Plant and C Rural Wire (158 files / 206.95 MB)
463Miscellaneous Station Apparatus for use With Station Installations Customer Equipment (128 files / 503.01 MB)
469Administrative Information, Customer Equipment (20 files / 10.03 MB)
471Other Common Carriers (4 files / 6.65 MB)
473Intra-PBX Protection of Service, Code Calling, Customer Training, Dispatching, Emergency Reporting, Interface Trunks, Message Waiting, Recorded Telephone Dictation, Telephone Answering Systems, and Transmitter Transfer Customer Equipment (28 files / 34.12 MB)
475Call Distributing Systems, Information Desks, and Order Turrets Customer Equipment (1 file / 1.29 MB)
476Force Administration Data System (FADS), Automatic Call Distributing Systems (ACD) No. 2A, 2B, and 3A, and Call Distributing System No. 4A Customer Equipment (2 files / 0.13 MB)
480Private Service Systems Customer Equipment (61 files / 73.16 MB)
481Teleconferencing Services (3 files / 5.14 MB)
500General Considerations for Station Installations Customer Equipment (52 files / 36.78 MB)
501Business Systems and Station Equipment Station Set Components, Customer Equipment (203 files / 231.79 MB)
502Common Battery Station Sets (691 files / 883.98 MB)
503Modular Station Sets (145 files / 519.51 MB)
504Selector Consoles, Telephone Consoles, Apparatus Units (7 files / 14.07 MB)
506Small business Systems and Station Equipment, Public Telephone Sets (150 files / 347.23 MB)
508Public Telephone Enclosures and Miscellaneous Accessories (168 files / 450.16 MB)
510Station Sets and Coin Collectors Local Battery and Magneto (69 files / 29.79 MB)
512Automatic Dialers, Station Keys, Key Equipment Interphone Systems, Modular Units, Speakerphone Systems and Conference Sets (169 files / 193.92 MB)
514Telephone Answering Sets and Systems and Announcement Sets and Systems (43 files / 170.94 MB)
518Key Telephone Systems, Communications Systems, and Switching System No. 400 (408 files / 1030.08 MB)
529Station Apparatus and Equipment Intended Solely for Specially Engineered Lines Not For General Telephone Use (27 files / 57.53 MB)
533Large Business Systems (PBXs) Customer Premises Systems and Customer Services Provided by ESS Switches (2 files / 3.00 MB)
534Sections Applying to More Than One PBX - Series 500, 600, 700, and 800 Series Manual and Dial PBX (15 files / 21.30 MB)
536500 Series PBX (33 files / 36.30 MB)
538600 Series PBX (1 file / 3.14 MB)
540Sections Applying to More Than One 700 Series PBX (9 files / 12.15 MB)
546740 Type PBX (1 file / 5.43 MB)
548750A PBX (10 files / 6.12 MB)
550755A PBX (11 files / 22.57 MB)
551756A, 757A, 758A, 58B, 758C, 761, and 770 PBX (9 files / 32.84 MB)
552Non-Bell Type PBX (2 files / 0.25 MB)
553800 Series PBX (4 files / 19.58 MB)
554Business Communications Systems - DIMENSION PBX (52 files / 360.85 MB)
555Definity Communications Systems 25, 75, 85, Merlin Legend and Common Systems, Information Systems Network, and Premises Distribution System (1249 files / 3737.81 MB)
560Data Systems Production, Cross Production (8 files / 11.63 MB)
562StarServer (1 file / 3.13 MB)
570Teletypewriter General Information - Misc. Apparatus and Auxiliary Equipment (76 files / 102.01 MB)
57214, 15, 19 and 20 Type Teletypewriters (7 files / 6.66 MB)
57328-Type Teletypewriters (318 files / 757.60 MB)
574Teletypewriter 30 Series and Teleprinters (279 files / 532.59 MB)
578Miscellaneous Data Terminals (81 files / 164.03 MB)
579Teletypewriter Field Maintenance/Field Installation Practices (3 files / 30.93 MB)
580Teletypewriter Switching Systems (2 files / 0.29 MB)
582Data Communications Equipment Systems, Services, and Components (54 files / 111.08 MB)
585Computer Products Adjunct Processors and Services For Business Communications Systems (897 files / 1684.11 MB)
590Data Systems - General Information (7 files / 10.10 MB)
591100 Series Data Sets and Associated Services (107 files / 201.12 MB)
592200 Series Data Sets and Associated Services (179 files / 445.44 MB)
594400 Series Data Sets and Associated Services (6 files / 11.38 MB)
595500-Type Service Units and Sets for Digital Systems/Services (16 files / 18.33 MB)
598800 Series Auxiliary Equipment (5 files / 29.61 MB)
620Outside Plant, General (97 files / 106.43 MB)
621Pole Lines (37 files / 14.63 MB)
622Conduit, Manholes, and Cable Vaults (5 files / 0.92 MB)
623Open Wire (11 files / 4.62 MB)
624Multiple Wire (27 files / 6.99 MB)
626Cables, Wire, and Apparatus (18 files / 8.59 MB)
627Aerial, Block, and House Cable (56 files / 29.92 MB)
628Underground Cable (14 files / 25.61 MB)
629Buried Plant (39 files / 38.49 MB)
631Cable Terminals (96 files / 252.70 MB)
632Cable Splicing (39 files / 33.91 MB)
633Splice Closures (21 files / 23.28 MB)
634Electrical Cable Testing and Identification (32 files / 32.35 MB)
636Main Frame Terminations and Connectors (4 files / 12.16 MB)
637Cable Pressure Systems (39 files / 26.31 MB)
638Electrical Protection and Bonding (5 files / 0.66 MB)
640Outside Plant Carrier Apparatus (13 files / 43.54 MB)
642Dedicated Plant (4 files / 4.19 MB)
644Upkeep (11 files / 36.69 MB)
649Outside Plant Construction Equipment (32 files / 17.35 MB)
650Converged Stackable Switch (Post-Divestiture) (2 files / 1.12 MB)
660Test Center Operation (210 files / 254.41 MB)
662Cable and Local Test Desks and Local Test Cabinets (25 files / 53.60 MB)
664Testboards for Other Than Special Services (9 files / 22.22 MB)
666Testboards and Test Positions For Special Services (31 files / 43.88 MB)
667Switched Maintenance Access and Servicing Systems (6 files / 12.87 MB)
668Data Test Centers (4 files / 1.05 MB)
670VPNmanager (Post-Divestiture) (20 files / 29.71 MB)
680Loop Assignment Distribution Service (78 files / 75.91 MB)
682Plant Assignment Trunk Plant and Special Services (9 files / 4.80 MB)
701Bogen Communications Products (Post-Divestiture) (30 files / 9.46 MB)
720Motor Vehicles and Construction Equipment (37 files / 26.30 MB)
740Materials Management and Supplies General Information (4 files / 3.42 MB)
741Products, Supplies, Systems and Services Supporting Functions (6 files / 8.97 MB)
742Supply Controls (16 files / 11.14 MB)
743Supply Ordering (4 files / 1.95 MB)
744Supply Distribution (3 files / 5.03 MB)
745Material Returns (10 files / 8.85 MB)
746Supply Functions, Miscellaneous (1 file / 0.42 MB)
747Shipping Logistics (13 files / 17.73 MB)
748Stocking Procedures (9 files / 16.19 MB)
749Plug-In Inventory Control (8 files / 15.98 MB)
750BISP General (1 file / 2.17 MB)
751Business Information Systems - COMMON LANGUAGE (108 files / 57.59 MB)
752Software Product Specifications (3 files / 105.69 MB)
753COSMOS Software (1 file / 0.14 MB)
759Business Information Systems - Time Share Program (7 files / 13.51 MB)
760Building Engineering (182 files / 115.09 MB)
770Building Operation (101 files / 53.22 MB)
780Network Services Methods (6 files / 34.21 MB)
781Technical Planning (2 files / 3.87 MB)
790Engineering Administrative Practices (48 files / 32.02 MB)
795COMMON LANGUAGE (713 files / 226.28 MB)
800Cross-Reference Lists, Floor Plan Data Sheets, Administrative Information, General Equipment Requirements For Installation and Manufacturing, And General Performance Raquirements (135 files / 132.86 MB)
801Equipment Design and General Requirements - Engineering Information - Common Systems (37 files / 31.97 MB)
802Equipment Design and General Requirements - Engineering Information - Power Systems (13 files / 23.63 MB)
803Grounding Systems (1 file / 8.82 MB)
804Equipment Design and General Requirements - Engineering Information - Toll Systems (15 files / 10.44 MB)
809Equipment Design and General Requirements - Engineering Information - Private Branch Exchange Systems (7 files / 7.87 MB)
812Equipment Design and General Requirements - Engineering Information - Station Systems (15 files / 12.34 MB)
814Equipment Design and General Requirements - Engineering Information - Step-by-Step Systems (61 files / 31.23 MB)
815Equipment Design and General Requirements - Engineering Information - Panel Systems (9 files / 5.47 MB)
816Equipment Design and General Requirements - Engineering Information - No. 1 Crossbar System (104 files / 57.88 MB)
817Equipment Design and General Requirements - Engineering Information - Tandem Crossbar System (31 files / 24.59 MB)
818Equipment Design and General Requirements - Engineering Information - No. 4 Type Toll Switching Systems (5 files / 1.90 MB)
820Equipment Design and General Requirements - Engineering Information - 1, 1A, 2, 2A, 3 and 4ESS and 5ESS 1A Processor (12 files / 10.44 MB)
821Equipment Design and General Requirements - Engineering Information - Traffic Service Systems (2 files / 2.61 MB)
824Equipment Design and General Requirements - Operations Support Systems (9 files / 47.40 MB)
846AT&T Pay Phones (2 files / 2.72 MB)
851Special Services Systems - Engineering Design Information (4 files / 4.72 MB)
852Exchange Area and Operator Services Transmission (22 files / 26.49 MB)
853Toll Transmission (2 files / 0.07 MB)
855Carrier Engineering (9 files / 19.09 MB)
876Electrical Protection Practices (9 files / 17.75 MB)
900Outside Plant Engineering - General Information (1 file / 16.00 MB)
915Outside Plant Engineering - Facility Design - Systems (1 file / 7.36 MB)
918Outside Plant Engineering - Facility Design - Applied Protection (2 files / 1.26 MB)
936Outside Plant Engineering - Management - Controlling (1 file / 8.55 MB)
940Radio Engineering (59 files / 80.78 MB)
953Switchboards, Desks and Associated Equipment - General Descriptive Information (1 file / 0.04 MB)
955Step-By-Step and Community Dial Offices - General Descriptive Information (6 files / 7.43 MB)
970Transmission Systems - General (1 file / 1.04 MB)
972Teletypewriter and Data Systems - General Descriptive Information (6 files / 15.63 MB)
975Signaling Systems - General Descriptive Information (7 files / 17.82 MB)
981Equipment on Customer's Premises (Special Services and Private Branch Exchanges) - General Descriptive Information (18 files / 56.91 MB)
982Private Service Systems - General Descriptive Information (13 files / 8.89 MB)
999Product Documentation - User (144 files / 417.43 MB)