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Folder No. 5 Crossbar - Wire Spring Relay Circuit - Vol 1

VOLUME I - WIRE SPRING No. 5 CROSSBAR SYSTEM

Section 1 — General Description of the Wire Spring No. 5 Crossbar System (129p)
Section 2 — Dial Tone Job (38p)
Section 3 — Dialing the Called Number (13p)
Section 4 — Pretranslation (22p)
Section 5 — Intraoffice Call (68p)
Section 6 — Outgoing Calls Using Senders (30p)
Section 7 — Incoming Calls (24p)

Folder No. 5 Crossbar book

This is a digital reproduction of a book published by Bell Labs containing a number of articles from 1949 to 1951 that detail most aspects of the No. 5 Crossbar. The articles were all publised in the Bell Laboratories Record.

The entire book is 150 pages. Due to the large number of images the book is presented with each article in a separate PDF. This makes the file sizes more manageable. Scanned and converted to PDF by Sam Etler.

Folder SS-400 Crossbar

Documents

pdf Crossbar Systems - Ch. 1 & 2 - Principles Of Xbar Switching & No. 1 Crossbar and Crossbar Tandem Systems Popular

By 850 downloads

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Crossbar Systems ..pdf

Crossbar Systems - Ch. 1 & 2 - Principles Of Xbar Switching & No. 1 Crossbar and Crossbar Tandem Systems

Telephone Communication Systems 1970 - V 2 issue 2 - Crossbar Systems, Western Electric Corporate Education Center. Ch. 1 - Principles of Crossbar Switching and Ch. 2 - No. 1 Crossbar and Crossbar Tandem Systems.

pdf Crossbar Systems - Ch. 1 - Principles Of Xbar Switching Popular

By 2082 downloads

Download (pdf, 1.35 MB)

Principles of Xbar Switching ~ Vol II, Ch I ..pdf

Crossbar Systems - Ch. 1 - Principles Of Xbar Switching

Telephone Communication Systems 1970 - V 2 issue 2 - Crossbar Systems, Western Electric Corporate Education Center. Ch. 1 - Principles of Crossbar Switching.

pdf Crossbar Systems - Ch. 2 - No. 1 Crossbar and Crossbar Tandem Systems Popular

By 1041 downloads

Download (pdf, 3.40 MB)

No. 1 and Crossbar Tandem - Vol. II, Ch. II.pdf

Crossbar Systems - Ch. 2 - No. 1 Crossbar and Crossbar Tandem Systems

Telephone Communication Systems 1970 - V 2 issue 2 - Crossbar Systems, Western Electric Corporate Education Center. Ch. 2 - No. 1 Crossbar and Crossbar Tandem Systems. (Also see a separate document for Ch. 1 - Principles of Crossbar Switching.)

pdf No 5 Crossbar System Circuit Description - SCD-10-01 ocr Popular

By 992 downloads

Download (pdf, 18.42 MB)

No_5_Crossbar_Circuit_Description_SCD-10-01_r_OCR_r.pdf

No 5 Crossbar System Circuit Description - SCD-10-01 ocr

WE 5 XB Switching System - OCR / Size reduction by Clint Gilliland.

pdf No 5 Crossbar System Circuit Description - SCD-10-01 [LARGE FILE] Popular

By 989 downloads

Download (pdf, 30.20 MB)

No_5_Crossbar_Circuit_Description_SCD-10-01.pdf

No 5 Crossbar System Circuit Description - SCD-10-01 [LARGE FILE]

WE 5 XB Switching System - Contributed by Chris Mattingly - Scanned by Paul Wills

pdf No 5 Crossbar System Functional Drawings - SFD-10-01 Popular

By 1032 downloads

Download (pdf, 71.83 MB)

No_5_Crossbar_System_Functional_Drawings_SFD-10-01.pdf

No 5 Crossbar System Functional Drawings - SFD-10-01

WE 5 XB Switching System - Contributed by Chris Mattingly - Scanned by Paul Wills

pdf WE 1 XB - Completion Of A Call Bulletin 2.5-1 Oct39 Popular

By 532 downloads

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WE_1_XBAR_Completion_of_a_call_Bulletin_2.5-1_Oct39.pdf

WE 1 XB - Completion Of A Call Bulletin 2.5-1 Oct39

October 1939, reissued July 1953.  Contributed by John Novack.

pdf WE 1 XB - NO.1 XBAR Plant Training IL Bell Oct52 Popular

By 567 downloads

Download (pdf, 572 KB)

NO.1_XBAR_Plant_Training_IL_Bell_Oct52.pdf

WE 1 XB - NO.1 XBAR Plant Training IL Bell Oct52

Contributed by John Novack.

pdf WE 1 XB - Plant Training Practices - 1939 Popular

By 664 downloads

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WE_1XB_Plant_Training_Practices_1939_tci-ocr.pdf

WE 1 XB - Plant Training Practices - 1939

360 Pages. Contributed by the Connections Museum. Processing by Remco Enthoven and Paul Fassbender.

pdf WE 4 XB - TFMS - Trunk And Facilities Maintenance System, No.4 Crossbar Popular

By 800 downloads

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Trunk and Facilities Maintenance System.pdf

WE 4 XB - TFMS - Trunk And Facilities Maintenance System, No.4 Crossbar

Marked for internal use within the Bell System.

pdf WE 5 XB - Completion Of A Call Bulletin 2.5 B1 Sep48 Popular

By 571 downloads

Download (pdf, 664 KB)

WE_5_XBAR_Completion_of_a_call_Bulletin_2.5_B1_Sep48.pdf

WE 5 XB - Completion Of A Call Bulletin 2.5 B1 Sep48

September 1948, reissued April 1954.  Contributed by John Novack.

pdf WE 5 XB - No. 5 Crossbar - V1 Equipment Applications May63 Popular

By 672 downloads

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No_5_Crossbar_V1_Equipment_Applications_May63_tci-ocr.pdf

WE 5 XB - No. 5 Crossbar - V1 Equipment Applications May63

400 pages. Equipment Arrangements and Elements, The Talking Path, Connectors, Common Control Equipment, Pulsing Paths, Maintenance Equipment. Contributed by the Connections Museum. Processed by Paul Fassbender.

pdf WE 5 XB - No. 5 Crossbar Master Test Frame 1951-73 Popular

By 456 downloads

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No_5_Crossbar_Master_Test_Frame_1951-73_tci-ocr.pdf

WE 5 XB - No. 5 Crossbar Master Test Frame 1951-73

Contributed by the Connections Museum. Processed by Paul Fassbender.

pdf WE 5 XB - No. 5 Crossbar Sketches Dec48 Popular

By 689 downloads

Download (pdf, 19.01 MB)

No_5_Crossbar_Sketches_Dec48_tci-ocr.pdf

WE 5 XB - No. 5 Crossbar Sketches Dec48

Contributed by the Connections Museum. Processed by Paul Fassbender.

pdf WE 5 XB - No. 5 Xbar ETS (Electronic Translation System) Popular

By 982 downloads

Download (pdf, 2.87 MB)

No. 5 Xbar EKTS (complete).pdf

WE 5 XB - No. 5 Xbar ETS (Electronic Translation System)

2-page brochure and 7-page description.? Marked for internal use within the Bell System.

pdf WE 5 XB - No. 5 Xbar ETS (Electronic Translation System) Popular

By 947 downloads

Download (pdf, 2.23 MB)

WECo_No._5_Xbar_ETS_ocr_r.pdf

WE 5 XB - No. 5 Xbar ETS (Electronic Translation System)

Contributed by Steve Cichorsky.  OCR by Clint Gilliland.

pdf WE 5 XB - No.5 Xbar EKTS Bc Popular

By 1232 downloads

Download (pdf, 2.87 MB)

No.5_Xbar_EKTS_bc.pdf

WE 5 XB - No.5 Xbar EKTS Bc

pdf WE Educational Bulletin No 2.5 1947 - No1 Crossbar Dial Tel Sys - Photographs Popular

By 697 downloads

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WE_Educational_Bulletin_No_2.5_1947_No1_Crossbar_Dial_Tel_Sys_Photographs_tci.pdf

WE Educational Bulletin No 2.5 1947 - No1 Crossbar Dial Tel Sys - Photographs

Contributed and scanned by John Novack. Processed by Paul Fassbender.

pdf WE Tel Sys Training 1959 - No1 Crossbar Dial Tel Sys - CO Equip No. 5 Popular

By 1292 downloads

Download (pdf, 11.91 MB)

WE_Tel_Sys_Training_1959_No1_Crossbar_Dial_Tel_Sys_CO_Equip_No5_ocr_tci.pdf

WE Tel Sys Training 1959 - No1 Crossbar Dial Tel Sys - CO Equip No. 5

Contributed and scanned by John Novack. Processed by Paul Fassbender.

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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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