[chbot] TTL to Line driver

Martin Towers tinytowers at xtra.co.nz
Fri Sep 11 11:44:21 BST 2020

Hi Wallace,
You might try looking for TTL to RS485 converters. 
This is a bad example - it's expensive and in India, but it shows they


On Fri, 2020-09-11 at 16:12 +1200, Marshland Engineering wrote:
> My encoder has become intermittent on my CNC mill. I have found that
> my Liner
>  scale from Aliexpress has the correct resolution to work with the
> controls.
>  The problem I have is the linear scale is TTL output and the
> connection I
>  require is differential equivalent to a SN75183.
> https://www.ti.com/lit/ds/symlink/sn75183.pdf
> Anyone know of an off the shelf TTL to differential unit. My searches
> don't
>  yield much other than discrete components.  Maybe there is another
>  workaround? 
> Thanks Wallace.
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