[GreenKeys] M28ASR wiring

Duncan Brown duncanancy at earthlink.net
Fri Apr 7 14:58:49 EDT 2023


Jeffery,

Thanks, but I l have that document and it is very hard to follow.

I did find some schematics at 
http://rtty.com/development/teletype/model28ASR/index.html which look 
more helpful. (although there are rfreferences to "Notes" which are not 
there.)

Duncan
K2OEQ


On 07-Apr-23 14:50, Jeffrey Golas wrote:
> I got you fam!
>
> navy-radio.com <https://www.navy-radio.com/manuals/tty/wd/ugc48a-wd.pdf>
> 	<https://www.navy-radio.com/manuals/tty/wd/ugc48a-wd.pdf>
>
> <https://www.navy-radio.com/manuals/tty/wd/ugc48a-wd.pdf>
>
> Jeff KC3GJX
>
>
>> On Apr 7, 2023, at 2:24 PM, Duncan Brown <duncanancy at earthlink.net> 
>> wrote:
>>
>>  I'm trying to set up a M28ASR and I need to find the rear terminal 
>> strip connections for the printer, keyboard, tape reader and aux 
>> reperf. The unit was from a civilian installation, but is referred to 
>> as a "UGC-6" on the patch panel.
>>
>> I've tried to find a basic connection diagram from the documentation 
>> on Nick's site, but as Nick once said:
>>
>>     /"Sometimes I think the Teletype publications group was run like
>>     a super-secret govt project - each group wrote about its own
>>     little piece, but no one knew how it all got connected
>>     together.......except for the document package shipped with each
>>     machine which was always discarded within two weeks."/
>>
>>
>> Can someone just give me the rear panel terminal strip connections 
>> for the i/o's to/from the cabinet?
>>
>> I will be wiring everything on separate loops.  When I switch from 
>> "LINE" to "TEST", does everything get put into the one local loop?
>>
>> Thanks,
>>
>> Duncan
>> K2OEQ
>>
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