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000 Division - General Info and Numeric Index
000-000 Cross Reference Indexes
001-004 Division - Company Issued Practices
005 Division - Abbreviations, Definitions,...
006 Division - Microfilm Systems
007 Division - Electronic Data Processing
010 Division - General Methods
020 Division - General Info for Divs 020 - 178
024 Division - Amps, Controllers, Tubes ...
026 Division - Electrical Components
028 Division - Bells, Dials, Headsets, Sounders
030 Division - Call Timing & Registers
032 Division - Capacitors, Cords, Plugs, ...
034 Division - Distributers, Regenerators,
040 Division - Relays
065 Division - Furniture, Fixtures & Materials
067 Divsion - Concentrators
069 Division - Misc Methods - Cabling, Cleaning
074 Division - Catalogue Info - Tools
075 Division - Tools & Materials - Common Use
076 Division - Tools and Materials
080 Division - Tools & Materials - Customer Equip
081 Division
081 Division - Tools & Materials - Outside Plant
084 Division - Catalogue Info - Gauges
085 Division - Gauges (Common Usage)
100 Division
100 Division - Test Equipment
103 Division - Transmission Test Equipment
105 Division - PBX & Station Test Equipment
106 Division - Electrical Test Equip
1500-series
155 - 178 Divisions - Power
155 Division - Alternators, Generators, Tone Mach
157 Division - Batteries
15A-23A-Key-Systems
167 Division - Power Plants & Supplies
169 Division - Rectifiers and Filament Supplies
171 Division - Misc Power Circuits
179 Division - Signaling & Ringing Circuits
190 Division - Operations Support Systems
1A and 1A1 Key Equipment
1A2 Equipment
1ESS
200 Division - Switching Systems
201 Division - Supplemental Information - Central
205 Division - Automatic Data Test Circuits
210 Division - Service Observing, Plant & Traffic
211 Division - No. 1,3,5 & 6 Toll Offices ...
212 Division
215 Division - Panel Offices
216 Division - No. 1 Crossbar Offices
218 Division - No. 5 Crossbar Offices
220 Division - Crossbar Tandem Offices
225 Division - Testing Information
226 Division - Step-by-Step, Community Dial Office
227 Division - Gen'l & Testing Info
231 Division - No. 1 ESS
232 Division - No. 2 ESS
233 Division - No. 3 Electronic Switching System
234 Division - No. 4 Electronic Switching System
241 Division - DMS-10 Digital Multiplex System
250 Division - Traffic Service Systems
250 Series Desk Telephones
2500-series
252 Division - Traffic Mgmt Systems
252 Series Wall Telephones
254 Division - Stored Program Control
255 Division - Processor Controlled Anciliary Sys
256 Division
256 Division - Common Channel Signaling System
294 Fiddleback
2A-Farm-Interphone
300 Division - Transmission Systems and Testing
300-series
301 Division - Transmission Noise
302 Division - Transmission Test Line
304 Division - Transmission Data
309 Division - Switched Services Networks
310 Division - Private Line Tel Systems & Services
311 Division - Switched Special Services Systems
312 Division - Private Line Data Systems and Serv.
313 Division - Voice and Voiceband Data Channels
314 Division - Digital and Analogue Data Trans.
318 Division - Television Systems
320 Division - Program Transmission Systems & Serv
322 Elevator Telephones
330 Division - Cable & Open-Wire Testing
331 Division - Transmission Noise Testing
331A and 331B Portable Telephone Sets
332 Division - Voice-Frequency Equipment
333 Division - Interoffice Signaling Systems
3500-series (AUTOVON)
356 Division - Analog Multiplex Terminal Equipment
362 Division - Type N, 0, and ON Carrier
363 Division - Pair Gain Systems
365 Division - Digital Transmission Systems
3C-and-3CL-Switchboard
3XB - SD-CD
400 Division - Radio - Administration
400-series
400d ktu
402 Division - Antennas, Trans. Lines & Wave Guide
403 Division - Marine & Emergency Radio
404 Division - Manual Mobile Radio
409 Division - TE, TJ, TL, and TM Microwave Radio
417 Division - 3A - Radio Digital Systems
460 - 489 Wiring, Special Services
460 Division - Customer Equipment, General Info
461 Division - Wiring and Cabling
462 Division - Drop and Block Wiring
463 Division - Misc. Apparatus (Installation)
469 Division - Admin Info - Customer Equipment
471 Division
473 Division
473 Division - Intra-PBX Services
476 - Coin Telephone Sets and Associated Apparatus
478 Division
480 Division - Private Service Systems
489 Division
491 Division
4ESS
500 Division - Station Sets - General
500 Series Multi-Line Telephones
500 Series Wall Telephones
500-series
501 Division - Station Set Components
502 Division - Station Sets - Common Battery
503 Division
503 Division - Station Sets - Modular Common Bat.
504 Division - Selector Consoles, Telephone Cons.
506 Division - Coin Telephone Sets, Common Battery
508 Division - Booths, Shelves, Signs...
50A1 Conference Set
510 Division - Station Sets and Coin Collectors
512 Division - Automatic Dialers, Speakerphones...
514 Division - Answering and Announcement...
518 Division - KTS, Video, Switching...
529 Division - Station Apparatus for Specially Eng
530 - 559 Private Branch Exchanges
533 Division - Customer Premises Systems
534 Division - PBX - Common Sections
536 Division - 500 Series PBX
540 Division - More Than One PBX Series
548 Division - 750A PBX
550 Division - 755A PBX
551 Division - 756A, 757A, 758A-B-C, 761, 770 PBX
570 Division - Teletype Gen'l Info
574 Division (TTY 30 Series Teleprinters)
592 Division - 200 Series Data Sets
5XB - SD-CD
620 Division - Outside Plant - Gen'l
621 Division - Pole Lines
622 Division - Conduit, Manholes, and Cable Vaults
623 Division - Open Wire
624 Division - Multiple Line Wire
626 Division - Cables, Wire, and Apparatus
627 Division - Areial, Block & House Cable
629 Division - Buried Plant
631 Division - Cable Terminals
632 Division - Cable Splicing
634 Division - Electrical Cable Testing and Ident.
638 Division - Electrical Protection & Bonding
640 Division - Outside Plant - Carrier Apparatus
642 Division - Dedicated Plant
660 - 984 Vehicles, Supplies, Gen'l
660 Division - Test Center Operation
660 Series Card Dialer Telephones
662 Division
664 Division - Test Boards for Other than Spec Svc
666 Division - Testboards Test Positions Spec Svc
667 Division - Switched Maintenance and Access
668 Division - Data Test Centers
680 Division - Customer Plant
682 Division - Trunk Plant and Special Services
6A-Equipment
720 Division - Motor Vehicles and Construction App
740 Division - Supplies, General Information
740 PBX - All Documentation*
741 Division - Supporting Functions
742 Division - Supply Controls
743 Division - Supply Ordering and Computer Cont.
744 Division - Supplies, Distribution
745 Division - Material Returns
747 Division - Supplies, Plut-In Equipment
748 Division - SWBT Procedures
749 Division - SWBT Procedures
750 Division - Business Information Systems, Gen'l
750 PBX - All Documentation
751 Division - Common Language
752 Division - Bellcore Practices (1990s)
755 PBX - All Documentation
759 Division - Time Share Programs
760 Division - Building Engineering
770 Division - Building Operation
780 Division - Engineering Planning
790 Division - Eng. Administrative Practices
795 Division - Common Language
800 Division - Equipment Design & Requirements
801 Division - Common Systems
802 Division - Power Systems
804 Division - Toll Systems
812 Division - Station Systems
820 Division - No. 1, 1A, 2, 2A, 3, and 4 ESS
824 Division - Operations Support Systems
851 Division
852 Division - (500-series Performance)
876 Division - Protection Practices
900 Division - Outside Plant Engineering
918 Division - Facility Design, Applied Protection
940 Division - Radio Engineering
950 Division (8 Digits Series)
953 Division - Switchboard, Desks
955 Division - Step-byStep & Community Dial
971 Division (8 Digits Series)
972 Division - Teletypewriter and Data Systems
975 Division - Signaling Systems
981 Division (8 Digits Series)
981 Division - Equip on Customers' Premises
982 Division - Private Service Systems
986 Division (8 Digits Series)
991 Division (8 Digits Series)
993 Division (8 Digits Series)
997 Division - Subscriber Equipment
A1 or B1 Handset Mountings
AA-Series - Equipment Engineering
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AE Catalog 11,000 - 1965-75
AE Catalogs
AE Circulars and Brochures
AE Switching Documents
AE Technical Bulletins (by Doc #)
AETJ - AE Technical Journal
Allen Tel Products
Altec
American Electric
American Telecommunications (ATC)
American Telecommunications Corporation (ATC)
Ancillary Devices
AT&T
AT&T Chester Telephone Pole Farm
AT&T Practices
AT&T Radio Notes - 1959 (vol. 14)
AT&T Radio Notes - 1960 (vol. 15)
AT&T Radio Notes - 1961 (vol. 16)
AT&T Radio Notes - 1962 (vol. 17)
AT&T Radio Notes - 1966 (vol. 21)
AT&T Specifications (pre-BSP) (by Doc #)
ATC/DecoTel
ATEA
Automatic Electric
Automatic Electric / GTE
AUTOVON
Avaya
B-Series - PBX Installation and Maintenance
B1 and D1 Handset Mountings
Battery Labels
Bell System
Bell System History Reference Books
Bell System/WECo - General Publications
Bell Telephone Company of Canada
Bell Telephone Quarterly / Bell Telephone Magazine
BK Precision
BLR
BLR Collections
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BNR
Bohnsack
Booth Cards
British
British Ericsson
Bruce Crawford Library
BSP - Bell System Practices (by Doc #)
BSP Categories by early Letter Code (by Doc #)
BSP Index Documents (by Doc #)
BSRS - Bell System Repair Specifications
BSTJ - Bell System Technical Journal
BTMC
BTMC Antwerp
Bulletins
C Series - Station Installation and Maintenance
C*NET documents
C00 - C29: Index, General, Apparatus, Wiring
C1 Handset Mountings
C30 - C31: General Apparatus, Subsets, Components
C32 - Telephone Sets
C33 - C38: Dials, Transmitters, Receivers, Cords
C39 - Coin Stations
C40 - C99: Magneto, Public Tel, Special Uses, etc.
Calculagraph
Canadian Practices
Catalogs (by Date)
Catalogs, Manuals, Educational Docs (by Company)
CD-81719-01 404 405 Dial Tone Generator
CD-SD-1C297-01 Coin Station Test Line
CDs, SDs and T-drawings
Civil Defense
CMP - Crafts Manual Practices
CO Maintenance Docs
Coin Collectors
Colin Chambers Files
Colors
Comdial
Component Specifications
Composite Telephones
Connecticut
Connecticut Telephone and Electric
Cook Electric
Cortelco Practices
D-series - Recovery and Repair
DASA-Magicall
Design Line
Desk Stands
DeTeWe
DFMP - Dial Facilities Management Practices
Dials
Distributors and Retailers
Document Archive
E and H Reference Docs
E Type Handset Mountings
ED-65720 Line Finder Schematic & Sequence Chart
Edition Comparison
EE-8 Field Telephone
Electronic Secretary Industries
Electronic Switching System (ESS)
Emil Møllers Telefonfabrikker Denmark
Ericsson Sweden
Ericsson UK
Extracts
Facility Locations
Foreign Market
G Type Handset Mountings
G-Series - Outside Plant
Garford North Sumpter
Garford Telephones
General Textbooks (by Title)
Gray
GSP - General Tel System Practices (by Doc #)
GTE - AE
GTE Handbooks and Indices
H-18781 A-1 Toll Transmission Selector
H-18838 A-1 Ring Back Switch Circuit
H-18876 A-1 Ring Back Relays & Int
H-18898-A-1 Test Distributor Selector Cir
H-18899 A-1 2-Wire Repeater Circuit
H-28318-A 2-Wire Repeater Circuit
H-35868 - 200 Point Linefinder
H-51297- Ringing Converter
H-51301
H-51303
H-580056
H-580059
H-580089- Reverse_Battery_Switch_Through_One_and_Two_Digit_Trunking_Connector
H-580260_Conn_Ckt_Local_or_Toll_Trk_Lev_Htg
H-580288
H-580294
H-580298
H-580361
H-580364- TRK and LEV hunting Conn
H-580368 LineFinder Ckts
H-58952
H-610010 - Outgoing Trunk Circuit
H-610035 Coin Tel Adpt. Ckt
H-610075
H-610144-A_Two_Way_Repeater
H-61293 Paging Transfer Circuits Selective Ringing
H-61350 AE Coin Trunk
H-61847_Timer_Ckt_for_Permanents_Conversations_Trunks
H-61876 - Pre-Pay Paystation Repeater Trunk Booster Bat 4th Wire Metering
H-720946 - CAX Selector Marker P
H-75159 10 Line Isolated PAX 24 Volts Circuit Exp
H-75311
H-75592 - Two Way PABX Tie Trunk Ckt - 2 or 4 Wire Operation
H-75607 Fire Reporting Firemans Conference Circuit
H-83242 i1 Apr62 - End Office Test Trunk
H-850061 - 40 Cycle Ringback Tone Generator TG-1
H-850215 - Register Sender Circuit
H-850603-A I1 Jun65 CAX Selector Marker
H-850665
H-850678-A
H-85075
H-851053 - Cross Point Switch Circuit
H-85175 Dial Speed Spotter Pulse Testing Ckt
H-85289 - LINEFINDER SWITCH TEST STAND
H-85500- A Intercept Trunk Circuit
H-856252 - Rev Call Sw10 pty coded
H-85919 - Type 26A Switch Tester Portable Routine Test Set Ckt
Handbooks - Bound BSP Compilations
Historian's Corner
Homebrew
Humor
Industry Publications
International Telephone and Telegraph Company
ITEC
ITT
ITT Practices
Kellogg
Kellogg & ITT
Kellogg Switchboard and Supply Company (includes ITT & Cortelco)
Kellogg TIMM Handbooks
Key Equipment
Key Systems
Keystone Telephone Company of Pittsburgh
KX-T61610 Easa-Phone - Electronic Modular Switching System
Left Column
Leich
Links to other sites of interest.
Lists of BSPs compiled from various sources
LM Ericsson
Lorain Products
Lynch B325 Manual
Lynch Communications
M-Series - Plant
M168
Magazine Covers
Magneto Telephones
Manuals (by Date)
Marketing Documents (by Date)
Melco
Method of mounting N-205 Mini Network inside of a
Military German
Military Telecom
Military United States
Miscellaneous Procedures
Miscellaneous Textbooks and Publications
Miscellaneous Topics
Mobile and Cellular Telephone
Modular Plug and Jack Wiring
MOO and X- Docs - 1920s
MS Visio Files
N1-Carrier
News
No. 5 Crossbar - Wire Spring Relay Circuit - Vol 1
No. 5 Crossbar book
No.2-Local-Test-Cabinet
Norelco
North Electric
Northeast Electronics
Northern Electric / Northern Telecom
Northern Electric / NT
Northern Electric/Northern Telecom
Northern Telecom / Northern Electric Practices
Number 5 Toll Testboard
Number Cards
Other Makers
Other Manufacturers
Other On-line Document Sources
Other sources of BSPs
Outdoor Type Telephone Sets
Outside Plant
Pagers
Panasonic
PATENTS: Telephones and Components
Pay and coin phone instruction cards etc.
Pay phone / booth
Philips Telecommunication
Phones in Movies
PMG Australia
Practice 356
Practice 380
Practice 720
Princess
Printable Documents
PTT France
PTT the Netherlands
Publications and Educational Documents (by Date)
Railroad Communications
Railway Telephones
Ralph Meyer References
REA - Rural Electrification Administration
REA Documents
Reference - Catalog Extracts
Revertive Ringing Trunk
RFT Fernmeldewerk Nordhausen VEB
Right Column
RTT Belgium
Russia
San Bar Practices
SC Catalog 1967
SC Catalogs
SC Wiring Diagram Books
SD-CD-1a246-01_MF_Receiver
SD-CD-25791-01_No-Such-Number_Tone.pdf
SD-CD-30200-Step-by step systems no.1 or 350A Loca
SD-CD-30228 Toll and Local Connector
SD-CD-30243-TestConn-350-355A
SD-CD-30903-35-E-97-Local-Connector-One-Ring-Gen-Co
SD-CD-30976-01_3_4_Wire_Selector
SD-CD-30978-8PtyRevCallSel-350-355-360A
SD-CD-31088
SD-CD-31592-CoinTrkCkt350-355-360A
SD-CD-31637-J34719A-ConnTstSet
SD-CD-31739-01_No1_350A_355A_Comb_Conn_Ckt
SD-CD-32133-01-SubLineCkt350-355-360A
SD-CD-33013-i4D-No1_350A_355A_360A_35-E-97_200_Point_Linefinder_Trunk_Finder_3-Wire
SD-CD-56134_2B_Signaling_Test_Set
SD-CD-59070
SD-CD-62440-01 I29 Nos. 3 Toll and Tandem Switchbo
SD-CD-63394-Broadband Carrier Systems
SD-CD-64800-01 Toll Systems - Switchboard No. 3C o
SD-CD-65680-505-506-507-Switchboards
SD-CD-65714-557A-General-Ckts
SD-CD-65715-555-557A-CO-TrunkCkt
SD-CD-65721-Sel-Conn
SD-CD-65727-557A-SecLineAndLineLampTstCkt
SD-CD-65729-557B-TAS-SWBD
SD-CD-65731-557B-TAS-SWBD
SD-CD-65773_701B_BatCutOff
SD-CD-66037-01-Tst-Line-701A-701B-711A-711B-Conn-S
SD-CD-66073-01-Tst-Set-J54701B-701-A-B-711-A-B-740
SD-CD-66144-012_Connector_701B
SD-CD-66520-555-General-Ckts
SD-CD-66537-555-StationLineCkts
SD-CD-69105-01_KTS No. 1A, Private Line
SD-CD-69286-01 6A Key Telephone System
SD-CD-69513-1A2LineCkt
SD-CD-69556-4WPrivateLineTerminatingStationCkt
SD-CD-73094-911NA-Tst-Set
SD-CD-95259-KS16617Amp
SD-CD-96335-01_Dial_Testing_Circuit_LTC_No-3
SD-CD-99706-24A_Loop_Checker
SD-CD-99707-24B_Loop_Checker_Generator
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Section 23
Section 30
Section 55
Section 57
Select-O-Phone
Shanghai Telecommunications Factory (Formerly IT&T
Siecor Half-Ringer unit
Siemens (Telecomunicazioni AUSO) Italy
Siemens und Halske Germany
site info
SS-400 Crossbar
Standard Telephones and Cables Limited
Stromberg Carlson
Stromberg Carlson Practices
Subscriber's Sets
Sumter Telephones
SWBT Service and Equipment Manual
SxS CO TEOs
Tales from Vienna
TCI Library Info
TCI-Sites
Tele-Norm
Telefon Fabrik Automatic
Telephone Answering Machines
Telephone Dials and Pushbuttons by Stanley Swihart
Telephone Directories
Teletype
Tellabs
Teltone
Terryphone
Tesla
Test Set Phones
The Vincent Rare Gas Relay
To Be Deleted
Tools
TOP - Traffic Operating Practices
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Valcom
Wall Telephone (Hotel) Sets
WEco Components
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WECo Step by Step (SxS)
WECo Switching - General and Training Documents
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Western Electric - Fundamentals of Telephony
Western Electric Card Catalog
Western Electric/Bell System
Wilcom
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X-75509_Specification_for_Wire_Spring_Relays
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