[GreenKeys] Model 28 signal lines

[Virgil Bierschwale]

I would be interested in seeing some pictures of the LESU as I'm facing a
similar situation.

Thanks,

Virgil
N5IVV


On Wed, Oct 16, 2019 at 5:10 PM B M <iamvirtual at gmail.com> wrote:

> Many thanks to all that replied. Now that I know it is necessary to
> confirm the options that might be in place, I can look closely at my
> machine and compare against the manuals to determine what I need to do.
>
> Thanks!
>
> --barrym
>
> On Tue, Oct 15, 2019, 12:28 B M, <iamvirtual at gmail.com> wrote:
>
>> I took a look through the theory & operation manual for the Teletype
>> Model 28 KSR (floor standing model), but I am still confused on where the
>> signal lines in and out are located.  I do see the 2 terminal strips at the
>> back of the cabinet with labels from 1-20 and 21-40.
>>
>> I have a few questions
>> 1. which terminals are for the signal lines in?
>> 2. which terminals are for the signal lines out?
>> 3. how do I determine that the unit is still set to use 60ma loop?
>> 4. will 48v @ 60ma be sufficient to drive the model 28 KSR?
>>
>> As you can see, I am not familiar with Teletypes.
>>
>> Any help would be greatly appreciated!
>>
>> Thanks
>>
>> --barrym
>>
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