Hahn, Ron wrote:
Thank you for these helpful advises. I am recalling many years ago there were
such things as line transceivers that converted the signals from TTL-RS232 and
backwards. Do these still exist in the world and have you perhaps these part
numbers? I am thinking this is the only thing left to try. Except possibly
changing the PPS pulse width. Maybe with the Fat PPS board? This is reminding
me of the old days. Printers and Terminals! :)
1488 and 1489, with various prefixes, are, in some order, drivers and
receivers for use with +/- 12V supplies.
MAX232 is the standard 5V based driver.
I rather imagine they still exist, as UARTS and ASICS don't directly
produce RS232 levels.
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