Re: Digest Number 197

If its really a teletype serial port, its a current loop, not like
RS232, which is a voltage swing interface. Its been way too long since I
looked at a tty interface to remember what the current levels are, of
course one of them is "zero".

Bill Martin

PTENGIN@... wrote:

>
> From: PTENGIN@...
>
> In a message dated 10/10/1999 8:47:41 AM Hawaiian Standard Time,
> drewid@... writes:
>
> << [What I find on my diagram is something called "TTY", >>
> I don't know what the voltage levels or other protocals are but I'm sure this
> is "teletype". A serial connection similar to rs-232.
> Peter
>
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> bill,
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