[GreenKeys] TTY Patch Panel Suggestion

Jeffrey D Angus jdangus at att.net
Wed Nov 27 16:16:13 EST 2013


For those of you with WAY too much free time...and a bucket
of switched 3 circuit (stereo) 1/4" phone jacks, I present this
as a suggested patch panel.

For a single local loop, no patch cables are required.

Two "patch in" a second local loop, run a patch cable from
loop-1 Additional Equipment to loop-2 External Terminal.
I suggest ALSO putting a shorting plug in loop-2  External
Loop Supply. This will disconnect both the loop-2 Terminal
Unit and Loop supply. Readjust the loop current as needed.

This will run both loop-1 and loop-2 off of the loop-1
Terminal Unit.

Depending on your creativity, you can cross connect
various pieces depending on how much you want to
impress visitors.

Unfortunately, use of the patch cables will disrupt things
as the jacks do NOT have the additional bypass switching.

The correct switched connectors from Switchcraft would
be the MT357 with schematic XXXVII. Good luck finding
those.

Jeff-1.0
wa6fwi



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