[Elecraft] [KX3] RS232 xcvr control when serial ports are occupied

[Walter Underwood]

I never really understood RS-232 until I read “Technical Aspects of Data Communication” by John McNamara. Very clear. Not sure it is worth getting the book just for that, but you might check a library.

https://smile.amazon.com/Technical-Aspects-Data-Communication-McNamara-ebook/dp/B01H5GQK78/
https://www.oldcomputerbooks.com/pages/books/M460/john-e-mcnamara/technical-aspects-of-data-communication

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Jul 9, 2018, at 6:45 PM, Don Wilhelm <donwilh at embarqmail.com> wrote:
> 
> Bill,
> 
> No, DCE is Data Communications Equipment and that means Modem which does connect to a phone line or other communications carrier medium.
> DTE means Data Terminal Equipment and connects to a modem.
> 
> Those designations have been in place since 1960 or earlier.
> 
> 73,
> Don W3FPR
> 
> On 7/9/2018 5:12 PM, Bill Frantz wrote:
>> I think the correct acronym expansion of DTE is "Data Carrier Equipment". Remember, this whole area was designed by telephone companies who thought they would be a part of every connection.
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