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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 1078 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 1002 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 1227 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 1149 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 538 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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