help finding chip
Steve Smith email (remove spam text)
Try MAXIM they do all maner of protocol converters or use a MAX232 + LTC485
this does 232 to TTL then TTL to 485 and not very expensive.
Another thaught We buy a PLC from Cuttler Hammer in the UK but its made by
Samsung and supplied with the software is a RS232 / RS485 converter in one of
those tiny boxes that takes just two 9 pin D type connecters about 25mm *
12mm not entirly sure what configuration it is but it does contain both of
the above chips and is line powered.
See also: www.piclist.com/techref/index.htm?key=help+finding+chip
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