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Folder Western Electric

Categories

Folder 15A-23A-Key-Systems

Folder 1A and 1A1 Key Equipment

Folder 1A2 Equipment

Folder 2A-Farm-Interphone

Folder 3XB - SD-CD

Folder 5XB - SD-CD

Folder 6A-Equipment

Folder 740 PBX - All Documentation*

*BSPs are located in the BSP section

Folder 750 PBX - All Documentation

Note that applicable BSPs can be found in the BSP section under the 748-xxx-xxx division.

Folder 755 PBX - All Documentation

Note that applicable BSPs are filed under the "BSP" section in the 550-xxx-xxx division.

Folder CDs, SDs and T-drawings

CDs and SDs are currently located in several categories in the Library. Hint: search using the first five numeric digits of the document number.

Folder ED-65720 Line Finder Schematic & Sequence Chart

Folder N1-Carrier

Folder No.2-Local-Test-Cabinet

Folder Number 5 Toll Testboard

Folder SD-CD-1a246-01_MF_Receiver

Folder SD-CD-25791-01_No-Such-Number_Tone.pdf

Folder SD-CD-30200-Step-by step systems no.1 or 350A Loca

Folder SD-CD-30228 Toll and Local Connector

Folder SD-CD-30243-TestConn-350-355A

Folder SD-CD-30903-35-E-97-Local-Connector-One-Ring-Gen-Co

Folder SD-CD-30976-01_3_4_Wire_Selector

Folder SD-CD-30978-8PtyRevCallSel-350-355-360A

Folder SD-CD-31088

Folder SD-CD-31592-CoinTrkCkt350-355-360A

CD-31592-02 and SD-31592-02 Coin Trunk Circuit

Folder SD-CD-31637-J34719A-ConnTstSet

Folder SD-CD-31739-01_No1_350A_355A_Comb_Conn_Ckt

Folder SD-CD-32133-01-SubLineCkt350-355-360A

Folder SD-CD-33013-i4D-No1_350A_355A_360A_35-E-97_200_Point_Linefinder_Trunk_Finder_3-Wire

Step-by-Step Systems, No.1, 350A, 355A, 360A, or 35-E-97 200 Point Line or Trunk Finder 3 Wire

Folder SD-CD-56134_2B_Signaling_Test_Set

Folder SD-CD-59070

Folder SD-CD-62440-01 I29 Nos. 3 Toll and Tandem Switchbo

Folder SD-CD-63394-Broadband Carrier Systems

Folder SD-CD-64800-01 Toll Systems - Switchboard No. 3C o

Folder SD-CD-65680-505-506-507-Switchboards

Applicable BSPs can be found in the 536-xxx-xxx Division

Folder SD-CD-65714-557A-General-Ckts

Folder SD-CD-65715-555-557A-CO-TrunkCkt

Folder SD-CD-65721-Sel-Conn

Folder SD-CD-65727-557A-SecLineAndLineLampTstCkt

Folder SD-CD-65729-557B-TAS-SWBD

Folder SD-CD-65731-557B-TAS-SWBD

Folder SD-CD-65773_701B_BatCutOff

Folder SD-CD-66037-01-Tst-Line-701A-701B-711A-711B-Conn-S

Folder SD-CD-66073-01-Tst-Set-J54701B-701-A-B-711-A-B-740

Folder SD-CD-66144-012_Connector_701B

Folder SD-CD-66520-555-General-Ckts

Folder SD-CD-66537-555-StationLineCkts

Folder SD-CD-69105-01_KTS No. 1A, Private Line

Folder SD-CD-69286-01 6A Key Telephone System

Folder SD-CD-69513-1A2LineCkt

Folder SD-CD-69556-4WPrivateLineTerminatingStationCkt

Folder SD-CD-73094-911NA-Tst-Set

Folder SD-CD-95259-KS16617Amp

Folder SD-CD-96181-No3-Tst-Cabinet

Folder SD-CD-96335-01_Dial_Testing_Circuit_LTC_No-3

Folder SD-CD-99706-24A_Loop_Checker

Folder SD-CD-99707-24B_Loop_Checker_Generator

Folder WEco Switching Documents

General and introductory info on topics including Manual, Step-by-Step (SxS), Panel, Crossbar (Xbar) and ESS.

Documents

pdf SD-69488-01 I1 Mar63 255A KTU Popular

By 1183 downloads

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SD-69488-01_i1_Mar63_255A_KTU.pdf

SD-69488-01 I1 Mar63 255A KTU

Contributed by John Novack.

pdf SD-69529-01 I10D - Type 247B TouchTone adapter Popular

By 1148 downloads

Download (pdf, 2.72 MB)

SD_69529_01_I10D_247B_TouchtoneAdapter.pdf

SD-69529-01 I10D - Type 247B TouchTone adapter

Used in the 6A Business Interphone system and in many 1A2 KTS intercom systems.  Contributed by Bruce Lane.

pdf SD-69559-01 I11D Tie Line Popular

By 1137 downloads

Download (pdf, 5.11 MB)

SD_69559_01_I11D_TieLine.pdf

SD-69559-01 I11D Tie Line
400-series tie-line circuit KTU's, including the 415, 416 and 461.  Contributed by Bruce Lane.

pdf SD-69561-01 I2 Conference Circuit Popular

By 999 downloads

Download (pdf, 422 KB)

SD_69561_01_I2_ConferenceCircuit.pdf

SD-69561-01 I2 Conference Circuit
Standard CO line conferencing circuit used in 1A2 key systems, including the 417A KTU. Contributed by Bruce Lane.

pdf SD-69567-01 Dial Selective Intercom Line Circuit Popular

By 1168 downloads

Download (pdf, 6.56 MB)

SD_69567_01_DialSelectiveIntercomLineCt.pdf

SD-69567-01 Dial Selective Intercom Line Circuit

Dial-selective intercom KTU's used in 1A2 systems, primarily with the 640-series modular panels and 7A thru 27A Com Key (ComKey) systems (not the 416 series). It includes details on the 407B and C, 420A, 422A and B, 423A, 424A, B and C, 425A and B, 444A, 491A and 494A and B KTU's.  Contributed by Bruce Lane.

pdf SD-69595-01 I10D Touch Tone Adapters Popular

By 1013 downloads

Download (pdf, 2.04 MB)

SD_69595_01_I10D_TTAdapters.pdf

SD-69595-01 I10D Touch Tone Adapters

Touchtone adapters for the 426A and 427A KTU's, which are early TouchTone adapters for dial intercoms in 1A2 gear. Contributed by Bruce Lane.

pdf SD-69610-01 Western Electric 301A Switching System FAA tci ocr Popular

By 586 downloads

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SD-69610-01 - Western Electric 301A Switching System - FAA tci -ocr.pdf

Contributed by Steve Cichorsky.

pdf SD-69627-01 I2B 109A110A Audio On Hold Popular

By 1093 downloads

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SD_69627_01_I2B_109A110A_AudioOn Hold.pdf

SD-69627-01 I2B 109A110A Audio On Hold

Voice Connecting Arrangements - 109A and 110A Audio-on-Hold KTU's. They're normally used in a 642-series auxiliary panel, in conjunction with 400G series line cards. It may be possible to use them with 400D's or earlier/later line cards. I've not tried it.  Contributed by Bruce Lane.

pdf SD-69651-01 I5D 400G Line Card Popular

By 1013 downloads

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SD_69651_01_I5D_400G_LineCard.pdf

SD-69651-01 I5D 400G Line Card
400G CO/PBX line card.  Contributed by Bruce Lane.

pdf SD-69652-01 I4D1 7A Communications System - Comkey718 Popular

By 1135 downloads

Download (pdf, 14.00 MB)

SD_69652_01_I4D1_7ASys_Comkey718.pdf

SD-69652-01 I4D1 7A Communications System - Comkey718
86 pages.  Contributed by Bruce Lane.

pdf SD-69654_01 i3D1 - 7A Comm System - Com Key Phones Popular

By 1025 downloads

Download (pdf, 2.87 MB)

SD_69654_01_I3D1_7A_Phones.pdf

SD-69654_01 i3D1 - 7A Comm System - Com Key Phones

Phones used with the ComKey 718 systems (7A communications system). 832, 2832, 575AM and 2575AM.  Contributed by Bruce Lane.

pdf SD-69658-01 I5B 6xxPanels Popular

By 1254 downloads

Download (pdf, 2.35 MB)

SD_69658_01_I5B_6xxPanels.pdf

SD-69658-01 I5B 6xxPanels
620 and 640-series modular panels used in late-issue 1A2 key systems.  Contributed by Bruce Lane.

pdf SD-69900-02 Popular

By 1104 downloads

Download (pdf, 1.32 MB)

SD-69900-02.pdf

SD-69900-02
Bell System /  Western Electric 50A Conference Set

pdf SD-69909-01 i8D1 Aug79 - 4A Speakerphone Popular

By 1246 downloads

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SD_69909_01_I8D1_4ASpkr.pdf

SD-69909-01 i8D1 Aug79 - 4A Speakerphone

Full set of schematics for the type 4A speakerphone system, including connections to compatible phones.  SD-69909. See BSP 512-700-100. Contributed by Bruce Lane.

pdf SD-69931-01 I8D1 478A Touch Tone Adapter Popular

By 1107 downloads

Download (pdf, 2.08 MB)

SD_69931_01_I8D1_478A_TTAdapter.pdf

SD-69931-01 I8D1 478A Touch Tone Adapter
Type 478A TouchTone adapter, as used in late-issue 1A2 intercom systems.  Contributed by Bruce Lane.

pdf SD-69942-01 I4B1 400H Line Card Popular

By 1239 downloads

Download (pdf, 780 KB)

SD_69942_01_I4B1_400H_LineCard.pdf

SD-69942-01 I4B1 400H Line Card
400H CO/PBX line card, the last such card Western Electric made.  Contributed by Bruce Lane.

pdf SD-70256-01 Testing and Maintenance 163A1 Test Unit Circuit for Use with Telegraph Repeaters 1938 tci ocr Popular

By 416 downloads

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SD-70256-01 Testing and Maintenance 163A1 Test Unit Circuit for Use with Telegraph Repeaters 1938 tci-ocr.pdf

Contributed by Steve Cichorsky.

pdf SD-80700-01 POWER SYSTEMS KEY SHEET DWG ISSUE 13 08 17 61 tci ocr Popular

By 526 downloads

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SD-80700-01 POWER SYSTEMS - KEY SHEET - DWG ISSUE 13 08-17-61 tci-ocr.pdf

Contributed by Steve Cichorsky.

pdf SD-80700-01 POWER SYSTEMS KEY SHEET ocr op r tci ocr Popular

By 1189 downloads

Download (pdf, 10.60 MB)

SD-80700-01 POWER SYSTEMS - KEY SHEET ocr op r tci-ocr.pdf

Contributed by Steve Cichorsky.

pdf SD-82227-01 I1 79B1 Power Supply Popular

By 1076 downloads

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SD_82227_01_I1_79B1_PowerSupply.pdf

SD-82227-01 I1 79B1 Power Supply
79B1 power supply, used with 1A2 modular key systems.  Contributed by Bruce Lane.

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Recent Contributors

Thanks for new documents from Bruce Patterson, Jon Kolger, Paul Ivester, Len Hicken, Paul Fassbender, Fred Haynes, Kurt Rudolph, Wade ("Kellogg KITT"), the Connections Museum, Rick Walsh, Jeff Lamb, Jeremy Walters, Mark Cuccia, Alan David, Harry Joseph, Charlie Terry, Karl Brose, Dennis Hock, Tim Griffin, Remco Enthoven, and Steve Cichorsky.

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