[time-nuts] Power connectors continued

Chris Albertson albertson.chris at gmail.com
Thu Jun 22 16:06:51 EDT 2017

I think they call these "16mm aviation plugs" in the CNC machine tool
world.  They are common for connecting servo or stepper motors to their

they have any number of poles from 2 to 6 or more and screw rings that
secure them.   Usually really good quality even from Chinese eBay vendors.
But they are really used only for a cable to chassis and only up to a few
amps.  here is one

Why so many connecter types?   So you don't cross stuff up.

Power poles are great for low-tech 12 volt buss systems that don't need any
kind of engineering and are tolerant of connecting "anything to anything."
 Amateur radios and lead acid batteries are OK.  Not good for high tech
battery or their chargers or loads.

Th XT60 or if you need 90  amps, the XT90 is ok because it is gendered and
you can't accidentally connect two sources.

The aviation type are perfect for cabling four or six lead motors.

I would not use 3-pin XLR for anything but audio.  Don't make it easy to
connect line level audio to a battery.

A really dumb idea was this guy, I heard this story secondhand.  He used
A/C extension cords for speaker cables because they work well for that
purpose, but then someone plugged a speaker into a 120vac well outlet.   I
assume it made a load 60 Hz tone for a few cycles.    Best to follow
industry conventions because that is what people expect.

Even though it would work well electrically, no one uses a mini-USB jack
for Ethernet and for good reason

On Thu, Jun 22, 2017 at 11:42 AM, Mark Spencer <mark at alignedsolutions.com>
> Sorry if I have caused any un due confusion thru my perhaps incorrect use
of the terms "cannon" and "XLR."
>  The green connector with 4 separate female contacts is what I perhaps in
correctly referred to as a "cannon" connector.  The silver connector with 3
separate female contacts was what I perhaps incorrectly referred to as a
"XLR" connector.
> Both were in use in my lab powering time nuts gear.
> Mark Spencer
> mark at alignedsolutions.com
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
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Chris Albertson
Redondo Beach, California

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