On Wed, Aug 9, 2017 at 1:49 PM, <biggran...@tds.net> wrote:

> Yes, you're right. I just took a quick look at the T200 schematic and saw
> few gates sitting at the RS232 connector, I didn't notice the VEE at the
> bottom (plus the image is very pixelated too).
>
>
Well, also the TPDD cable itself has active electronics in it that do level
shifting.

-- John.

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