Hi

When I build a K2 I always solder all of the pins except pin 4 then pull out 
pin 4 with pliers. If you have already soldered pin 4 then you could reheat 
pin 4 and pull gently to remove it. You could also just cut off pin 4 as 
instructed in the manual. The female connector has a little plastic plug 
that fills the hole in pin 4 on both ends of the KPA100 ribbon cable. If you 
lost the little plugs or don't have them you could use a tooth pick to stick 
into pin 4 and then break it off or clip it with your flush cutters. This 
all relates to the aux I/o connector on the control board not the 9 pin on 
the back of the K2.

On the 9 pin connector on the back of the K2 you should build the connector 
out of the parts supplied with the KPA100 or KIO2 and not try to use a 
commercially built RS232 cable. Only three pins relate to RS232 the rest are 
for control of Elecraft options like the KPA100 or KAT100 . Using a standard 
RS232 cable will destroy several components on the control board or KPA100 
if it is plugged into a computer RS232 port.

Don Brown
KD5NDB


----- Original Message ----- 
From: "Nigel" <[EMAIL PROTECTED]>
To: <elecraft@mailman.qth.net>
Sent: Tuesday, November 29, 2005 4:49 PM
Subject: RE: [Elecraft] K2 AUX I/O connector


> Thanks Don, for the reminder.
>
> I know in the past it has been posted to insert a pin in terminal 4 on the
> K2 and remove the same from the corresponding plug to make them unique to
> the K2.
> How's the easiest way to do this?   Can you pull the pin from the male 
> plug
> and insert it into the female one or do you need to wreck another one?
>
>
> 73,  Nigel ZL2DF
>
>
> > ------------------------------ 
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