Check our website for upcoming telephone shows

You are here: Home > Browse the Library > BC Switching Library > All BC Library Topics > Western Electric > WEco Switching Documents > WECo Crossbar > No. 5 Crossbar - Wire Spring Relay Circuit - Vol 1

Check out the TCI YouTube channel here. Please subscribe!

Check here for the 2024 Telephone Shows

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)

Documents

pdf ATT 5XB vI Mar55 Wire Spring Sec1 - General Description Popular

Published on 25 September 2020 Modified on 05 October 2020 By Paul F 695 downloads

Download (pdf, 24.07 MB)

ATT_No_5_Crossbar_Switching_System_vI_Sec1_Mar55_Wire_Spring_Relay_Circuit_General Description_tci_ocr.pdf

ATT 5XB vI Mar55 Wire Spring Sec1 - General Description

From: No. 5 Crossbar Switching System - Wire Spring Relay Circuit
Volume 1 - Wire Spring No. 5 Crossbar System
Section 1 - General Description of the Wire Spring No. 5 Crossbar System

Scanned and Contributed by Steve Cichorsky

pdf ATT 5XB vI Mar55 Wire Spring Sec2 - Dial Tone Job Popular

Published on 25 September 2020 Modified on 05 October 2020 By Paul F 369 downloads

Download (pdf, 5.18 MB)

ATT_No_5_Crossbar_Switching_System_vI_Sec2_Mar55_Wire_Spring_Relay_Circuit_Dial_Tone_Job_tci_ocr.pdf

ATT 5XB vI Mar55 Wire Spring Sec2 - Dial Tone Job

From: No. 5 Crossbar Switching System - Wire Spring Relay Circuit
Volume 1 - Wire Spring No. 5 Crossbar System
Section 2 - Dial Tone Job

Scanned and Contributed by Steve Cichorsky

pdf ATT 5XB vI Mar55 Wire Spring Sec3 - Dialing the Called Number Popular

Published on 05 October 2020 Modified on 05 October 2020 By Paul F 358 downloads

Download (pdf, 1.58 MB)

ATT_No_5_Crossbar_Switching_System_vI_Sec3_Mar55_Wire_Spring_Relay_Circuit_Dialing_the_Called_Number_tci_ocr.pdf

ATT 5XB vI Mar55 Wire Spring Sec3 - Dialing the Called Number

From: No. 5 Crossbar Switching System - Wire Spring Relay Circuit
Volume 1 - Wire Spring No. 5 Crossbar System
Section 3 - Dialing the Called Number

Scanned and Contributed by Steve Cichorsky

pdf ATT 5XB vI Mar55 Wire Spring Sec4 - Pretranslation Popular

Published on 05 October 2020 By Paul F 291 downloads

Download (pdf, 3.20 MB)

ATT_No_5_Crossbar_Switching_System_vI_Sec4_Mar55_Wire_Spring_Relay_Circuit_Pretranslation_tci_ocr.pdf

ATT 5XB vI Mar55 Wire Spring Sec4 - Pretranslation

From: No. 5 Crossbar Switching System - Wire Spring Relay Circuit
Volume 1 - Wire Spring No. 5 Crossbar System
Section 4 - Pretranslation

Scanned and Contributed by Steve Cichorsky

pdf ATT 5XB vI Mar55 Wire Spring Sec5- Intraoffice Call Popular

Published on 05 October 2020 By Paul F 476 downloads

Download (pdf, 10.45 MB)

ATT_No_5_Crossbar_Switching_System_vI_Sec5_Mar55_Wire_Spring_Relay_Circuit_Intraoffice_Call_tci_ocr.pdf

ATT 5XB vI Mar55 Wire Spring Sec5- Intraoffice Call

From: No. 5 Crossbar Switching System - Wire Spring Relay Circuit
Volume 1 - Wire Spring No. 5 Crossbar System
Section 5- Intraoffice Call

Scanned and Contributed by Steve Cichorsky

pdf ATT 5XB vI Mar55 Wire Spring Sec6 - Outgoing Calls Using Senders Popular

Published on 05 October 2020 By Paul F 296 downloads

Download (pdf, 4.20 MB)

ATT_No_5_Crossbar_Switching_System_vI_Sec6_Mar55_Wire_Spring_Relay_Circuit_Subscriber_Outgoing_Calls_Using_Senders_tci_ocr.pdf

ATT 5XB vI Mar55 Wire Spring Sec6 - Outgoing Calls Using Senders

From: No. 5 Crossbar Switching System - Wire Spring Relay Circuit
Volume 1 - Wire Spring No. 5 Crossbar System
Section 6 - Outgoing Calls Using Senders

Scanned and Contributed by Steve Cichorsky

pdf ATT 5XB vI Mar55 Wire Spring Sec7 - Incoming Calls Popular

Published on 06 October 2020 By Paul F 311 downloads

Download (pdf, 3.56 MB)

ATT_No_5_Crossbar_Switching_System_vI_Sec7_Mar55_Wire_Spring_Relay_Circuit_Incoming_Calls_tci_ocr.pdf

ATT 5XB vI Mar55 Wire Spring Sec7 - Incoming Calls

From: No. 5 Crossbar Switching System - Wire Spring Relay Circuit
Volume 1 - Wire Spring No. 5 Crossbar System
Section 7 - Incoming Calls

Scanned and Contributed by Steve Cichorsky

New User?

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

Recent Contributors

Thanks for new documents from Jim Hurtle, Ed Palazzo, Paul Fassbender, Bruce Patterson, Remco Enthoven, Jon Kolger, Paul Ivester, Len Hicken, Fred Haynes, Kurt Rudolph, Wade ("Kellogg KITT"), the Connections Museum, Rick Walsh, Jeff Lamb, Jeremy Walters, Alan David, Dennis Hock, and Tim Griffin.

Please send a file to add your name to this list!