[Elecraft] RS-232 Cable Question

[Jack Brindle]

The computer cable for the K2 requires only three wires connecting  
pins 2, 3 and 5 on each end. The other pins must not be connected  
since the KIO2 signals on these pins are not RS-232 capable.  
Connecting them to an RS-232 connector will cause damage in the K2.

The K3 can use a standard RS-232 cable. A standard 9-conductor  
straight-through cable will work just fine.

AD5SS is correct. While the KRC2 and Transverters can connect to the  
K2 using a short straight-through cable, you need a two conductor  
cable connected to the K3's Aux IO port to use these devices with the  
K3.

Hope this helps.

Jack Brindle, W6FB
Elecraft Engineering

On Mar 18, 2010, at 2:25 PM, K. Edwards wrote:

> I have a K2 and a K3. I clearly see in the K2 manual that a special  
> cable is
> needed but it appears the K3 is a standard RS232 pinout.
>
> 1, I want to confirm the K3 does use a regular RS232 cable (before I  
> fry
> something!)
> 2. Does any manufacture K2 RS232 cables? I didn't see anything on the
> Elecraft site or a quick web check...
>
> TIA!
>
> 73...
>
> --Ken WA4SQM
>
> -- 
>
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>
> The Lord's Prayer is 66 words, the Gettysburg Address is 286 words,  
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