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.

Documents

pdf 00-Contents Popular

1130 downloads

00-Contents

Western Electric No. 5 Crossbar book.  BLR reprint, 1950.  Contributed by Sam Etler.

pdf 01-Introduction Popular

855 downloads

Download (pdf, 145 KB)

01-Introduction.pdf

01-Introduction

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 02-PictoralSummary Popular

852 downloads

Download (pdf, 14.36 MB)

02-PictoralSummary.pdf

02-PictoralSummary

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 03-DesignPatterns Popular

723 downloads

Download (pdf, 1.93 MB)

03-DesignPatterns.pdf

03-DesignPatterns

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 04-TrunkingPlan Popular

739 downloads

Download (pdf, 1.32 MB)

04-TrunkingPlan.pdf

04-TrunkingPlan

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 05-Marker Popular

822 downloads

05-Marker

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 06-EquipmentArrangements Popular

638 downloads

Download (pdf, 1.90 MB)

06-EquipmentArrangements.pdf

06-EquipmentArrangements

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 07-Frames Popular

698 downloads

07-Frames

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 08-OriginatingDPRegister Popular

661 downloads

Download (pdf, 340 KB)

08-OriginatingDPRegister.pdf

08-OriginatingDPRegister

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 09-TrunkSelection Popular

597 downloads

Download (pdf, 1.47 MB)

09-TrunkSelection.pdf

09-TrunkSelection

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 10-TrafficDistribution Popular

593 downloads

Download (pdf, 1.33 MB)

10-TrafficDistribution.pdf

10-TrafficDistribution

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 11-Connectors Popular

632 downloads

Download (pdf, 2.37 MB)

11-Connectors.pdf

11-Connectors

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 12-Senders Popular

642 downloads

12-Senders

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 13-SenderLinkFrames Popular

601 downloads

Download (pdf, 1.87 MB)

13-SenderLinkFrames.pdf

13-SenderLinkFrames

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 14-IncomingRegisterLink Popular

607 downloads

Download (pdf, 1.05 MB)

14-IncomingRegisterLink.pdf

14-IncomingRegisterLink

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 15-IncomingRegisterCircuits Popular

602 downloads

Download (pdf, 1.81 MB)

15-IncomingRegisterCircuits.pdf

15-IncomingRegisterCircuits

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 16-RegisterAndSenderFrames Popular

544 downloads

Download (pdf, 3.03 MB)

16-RegisterAndSenderFrames.pdf

16-RegisterAndSenderFrames

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 17-NumberGroupFrame Popular

595 downloads

Download (pdf, 1.93 MB)

17-NumberGroupFrame.pdf

17-NumberGroupFrame

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 18-RingingSelection Popular

708 downloads

Download (pdf, 1.02 MB)

18-RingingSelection.pdf

18-RingingSelection

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 19-MessageRegisterOperation Popular

552 downloads

Download (pdf, 1019 KB)

19-MessageRegisterOperation.pdf

19-MessageRegisterOperation

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

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Thanks for new documents from Ed Palazzo, 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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