[Elecraft] KIO3 Pinout

[Dr. Werner Furlan]

hi David, 

David Christ schrieb am 19 Oct 2009 um 15:13:

>  From my professional experience TxD and RxD may be more common, but 
> RX and TX are used often enough that I would not call them unusual. 
> Certainly using RX and TX should not cause any confusion.

my mail below was not clear in this respect, I did not find the expression TX and RX unusual, 
but it was the fact that a transmitting line is called RX(D) and a receiving line TX(D). But Don 
W3FPR enlightened me that this is correct because the K3 is a Terminal Device and transmits 
on RXD, where the DCE device (computer) is receiving on RXD and transmits on TXD. 

> >Btw, the naming of RX and TX is "unusual" in the manual. I think a 
> >transmitting line is called
> >TXD and a receiving line is called RXD, no matter on which device it is
> >located. Data from the K3 = TXD -> RXD on the PC, Data from PC -TXD -> RXD
> >on the K3. (ANSI/EIA/TIA-232-F-1997)


73! de Werner OE9FWV




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