[Elecraft] Use of DB9 Switch with K3?

[Joe Subich, W4TV]

I unplug the microHAM RS-232 cable and connect a standard
cable from COM1 (the serial port on the motherboard) of
my test system when I need to upload firmware.  However,
I know of several others who are using a serial A/B switch
without problems.

For safety reasons make sure the switch is a break before
make (non-shorting) type.

73,

    ... Joe, W4TV

On 12/17/2010 10:45 PM, Georgek5kg at aol.com wrote:
> At times, my microHam CW Keyer is connected to my K3 via the P3.   However,
> when I want to download new firmware for the K3, I have to disconnect  the
> CW Keyer from the RS232 port, and connect the DB9 from the computer's serial
>   port to the K3 via the P3.
>
> Can I use a DB9 A/B switch to switch between the the two DB9 cables without
>   creating any problems?
>
> 73, George
>
> George  Wagner, K5KG
> Sarasota, FL
> 941-400-1960  cell
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