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Folder Bruce Crawford Library

Click here for the Bruce Crawford Memorial Switching Documentation Library list view. (note: please be patient, this will take some time to show: about 1 minute)

The Bruce Crawford Memorial Switching Documentation Library

Bruce Crawford

Bruce Crawford - Founder of Switchers' Quarterly

Categories

Folder American Telecommunications (ATC)

Folder Automatic Electric

Folder Avaya

Folder Bell System Practices

TCI Library BSP page: Bell System Practices

For links to other sources: BSP - Bell System Practice Library

Folder Bell System/WECo - General Publications

Folder BTMC Antwerp

Folder Cook Electric

Folder ITEC

Folder ITT

Folder Kellogg

Folder Leich

Folder Lorain Products

Folder Lynch Communications

Folder Melco

Folder Miscellaneous Textbooks and Publications

Folder North Electric

Folder Northeast Electronics

Folder Northern Electric / Northern Telecom

Folder Other Makers

Folder Panasonic

Folder San Bar Practices

Folder Stromberg Carlson

Folder Switching Special Applications

Specialty topics, such as AUTOVON, Homebrew Circuits and Railway Switching.

Folder Tele-Norm

Folder Tellabs

Folder Teltone

Folder Valcom

Folder Wescom

Folder Western Electric

Folder Wilcom

Documents

Tagged in: SxS

Showing documents tagged with SxS. Show all

pdf CD-30228-01 Combination Toll and Local Connector Popular

By Tagged in SxS 181 downloads

Download (pdf, 2.42 MB)

CD-30228-01_Combination_Toll_and_Local_Connector.pdf

CD-30228-01 Combination Toll and Local Connector

Circuit Description for 30228 Local and Toll Connector. Issue 6-D.

COMBINATION TOLL AND LOCAL LOOP DIALING TOLL TRAIN; SELECTIVE OR 1 RING SEMI-SELECTIVE RINGING

Scanned by Steve Cichorsky, Contributed by Tim Griffin

pdf CD-30228-01 Combination Toll and Local Connector Popular

By Tagged in SxS 139 downloads

Download (pdf, 2.42 MB)

CD-30228-01_Combination_Toll_and_Local_Connector (1).pdf

CD-30228-01 Combination Toll and Local Connector

Circuit Description for 30228 Local and Toll Connector. Issue 6-D. COMBINATION TOLL AND LOCAL LOOP DIALING TOLL TRAIN; SELECTIVE OR 1 RING SEMI-SELECTIVE RINGING

Scanned by Steve Cichorsky, Contributed by Tim Griffin

pdf SD-30228 Combination Toll and Local Connector Popular

By Tagged in Northern Electric, SxS 245 downloads

Download (pdf, 18.67 MB)

SD-30228_Combination_Toll_and_Local_Connector (1).pdf

SD-30228 Combination Toll and Local Connector

SD-30228 Combination Toll and Local Connector; 5 sheets, Issue 39, 23-APR-1971

Scanned by Paul Axman, Contributed by Tim Griffin.

New User?

Read the articles under "Introduction" in the black menu bar above.

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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