Folder 179 Division - Signaling & Ringing Circuits

Signaling Circuits ans Associated Ringer Circuits

Documents

pdf 179-000-000 I66 Popular

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179-000-000_I66.pdf

179-000-000 I66
Contributed by Sam Etler .

pdf 179-306-101 I1 Popular

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179-306-101_I1.pdf

179-306-101 I1

Contributed by Russ Kirk.

pdf 179-306-101-h-se Popular

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179-306-101-h-se.pdf

179-306-101-h-se

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

By 364 downloads

Download (pdf, 995 KB)

179-306-101-se.pdf

179-306-101-se

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."

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