Cable for the K3 Aux I/O
I found a source for cables for the K3 AUX I/O connector, which uses all
15 pins of a HD-15 connector. You can find many cables for the HD-15,
but almost all of them are for video extension cables. I found a source
of cables. They are made by L-Com (www.l-com.com <http://www.l-com.com>)
. They are available from Newark, and directly from L-Com. The part
numbers of concern are for a male to male cable. And why a male to male?
So you can cut the cable in half and have two cables, one for you and
one for your buddy, or your second K3!
The part number from L-Comm is CS2H15MM-5, for a five footer, (Newark #
is 88M8465), and the CS2H15MM-10, which is ten feet. (Newark # 30M8735).
I bought the five footer as Newark had those in stock. The cost is
around $ 27.00 each. L-Comm’s website shows their very own checkout
system. I called them and they do not have a minimum order, and they
take most credit cards.
So I cut my five foot cable into a four and one foot length. I found the
15 conductors surrounded by a foil shield, a drain wire for the shield,
and an overall woven out shield. The 15 conductors are all there. I
ohmed out the colors, and while they should be the same from cable to
cable, you might want to check out the color codes of your cable before
committing to these wires to your K3.
Pin # Color
1 Black (solid color)
2 Brown (solid color)
3 Red (solid color)
4 Orange (solid color)
5 Yellow (solid color)
6 Green, dark (solid color)
7 Blue (solid color)
8 Violet (solid color)
9 Gray (solid color)
10 White (solid color)
11 Pink (solid color)
12 Light Green (solid color)
13 Black with white strip
14 Brown with white strip
15 Red with white strip
I connected my cable to a captive wire barrier strip, plugged it into my
K3, turned off, but with 12 VDC power. I shorted the Violet wire, pin 8
(power on) to the light green, pin 12 (ground). My K3 turned on. This is
good news for me as my second K3 is at my 6 meter SSB remote site, and
these wires will be wired into a relay controller that comes off my
computer located there. Now, if there is a power bump, I don’t have to
make a trip up there!
Now, to convince L-Com to make a breakout HD-15 connector with captive
wire screws on it, like they do for the DB-9!
Tom Bosscher K8TB
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
