[Elecraft] [K2] Using KUSB with KIO2?

[Don Wilhelm]

Do *NOT* plug the KUSB directly into the K2 AUX I/O connector.  You must 
use the intervening 'special cable' that is detailed in the KIO2 
instructions.  That cable can be short or long, but it must be installed 
to protect the K2 from damage.
The AUX IO connector has internal K2 signals that are used for other 
Elecraft accessories such as the KAT2 and XV series transverters.

The AUX IO is *not* an RS-232 port even though it contains 2 RS-232 
signal lines.

73,
Don W3FPR

On 6/8/2014 7:21 PM, Matt VK2RQ wrote:
> I just installed the KIO2 serial port in my K2. When I ordered the KIO2, I also ordered a KUSB USB-to-serial adapter cable. Is it safe to plug the KUSB cable directly into the KIO2 port, or do I need to connect it via the DB9-DB9 serial cable to ensure that only pins 2/3/5 are connected between the KIO2 and the KUSB?
>
> 73,
> Matt VK2RQ
>