[Elecraft] KIO2 "Gotcha's" and "Trip Wires"?

Fri Dec 26 17:19:00 2003

Hi Paul,

If you just want to control the K2 via a computer and  you're not interested
in the other remote features that use the RF and AUX signals, you can
isolate these pins on J1 on the KIO2 card.  Only pins 2, 3 and 5 of J1 (the
9 pin
D connector) need to have signals for RS232 control.

I cut the etch going to pins 1, 4, 7 and 8 on mine and clipped one end of
L1 and R1, since I had already assembled the board.    If  the other
features are ever needed, these mods can be easily reversed.

73/ Bob - AG5Q

----- Original Message ----- 
From: "Paul Clay" <[email protected]>
To: <[email protected]>
Sent: Friday, December 26, 2003 12:10 PM
Subject: [Elecraft] KIO2 "Gotcha's" and "Trip Wires"?

> As I'm about to embark on building and installing
> a KIO2 in my K2, all of this "wrong serial cable"
> traffic has got me a bit worried.
>
> I'm assuming that the same disastrous consequences
> arising from the use of a standard serial cable
> might arise from an accidental "mis-wiring" of
> the KIO2 or its custom serial cable.  (I seem to
> recall a poster a while back lamenting that he'd
> blown his K2 as a result of an incorrectly
> installed part or sloppy solder joint on his
> KIO2).
>
> Are there some steps or connections in the
> assembly process that I need to be extra careful
> about?  Any possible "gotcha's" I need to be
> aware of?  Can I assume (that can be dangerous)
> that if my KIO2 and cable pass their resistance
> and continuity checks OK, the unit still may not
> work but it won't fry my K2?  :=)
>
> I plan on triple checking my work as I go, as
> usual for me, but think a little extra insurance
> in the form of this List's sage advice is a wise
> investment.
>
> Happy holidays,
> Paul N6LQ
> _______________________________________________
> Elecraft mailing list: [email protected]
> You must be subscribed to post to the list.
> To subscribe or unsubscribe see:
http://mailman.qth.net/mailman/listinfo/elecraft
> Elecraft Web Page: http://www.elecraft.com
> Also see: http://www.elecraft.com/elecraft_list_guidelines.htm
>