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Folder 179 Division - Signaling & Ringing Circuits

Signaling Circuits ans Associated Ringer Circuits

Documents

pdf 179-000-000 I66 Popular

Published on 16 January 2012 By Anonymous 1041 downloads

Download (pdf, 194 KB)

179-000-000_I66.pdf

Contributed by Sam Etler .

pdf 179-306-101 I1 Popular

Published on 09 February 2012 By Anonymous 973 downloads

Download (pdf, 995 KB)

179-306-101_I1.pdf

Contributed by Russ Kirk.

pdf 179-306-101-h-se Popular

Published on 15 November 2009 By Anonymous 1196 downloads

Download (pdf, 5.06 MB)

179-306-101-h-se.pdf

Multichannel Tone Test Unit - SD-7C004-01 - Description,
Issue 1, Oct. 1975

"1.02 The MTTU has the capability of monitoring a maximum of 100 trunks
for the presence of unauthorized 2600-Hz tone signals."

pdf 179-306-101-se Popular

Published on 15 November 2009 By Anonymous 1120 downloads

Download (pdf, 995 KB)

179-306-101-se.pdf

Multichannel Tone Test Unit - SD-7C004-01 - Description,
Issue 1, Oct. 1975

"1.02 The MTTU has the capability of monitoring a maximum of 100 trunks
for the presence of unauthorized 2600-Hz tone signals."

pdf 179-399-901PT iA Jun71 - Wescom 457-FSA - FX Inband Signaling System - Circuit Desc Op Maint Popular

Published on 15 March 2020 By Paul F 499 downloads

Download (pdf, 2.72 MB)

179-399-901PT_iA_Jun71_Wescom_457-FSA_FX_Inband_Signaling_System_Circ_Desc_Op_Maint_ocr_tci.pdf

179-399-901PT iA Jun71 - Wescom 457-FSA - FX Inband Signaling System - Circuit Desc Op Maint

Used in the WESCOM 45-type Station Terminating Assemblies. Contributed to the TCI Library by Steve Cichorsky. OCR by Jeff Lamb. Processed by Paul Fassbender.

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Recent Contributors

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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