[sdiy] External power connectors

[Roy J. Tellason]

On Friday 03 December 2004 04:32 pm, William Berzinskas wrote:
> 5 pin xlr are commonly used in DMX lighting..   alot of it is 3 pin, but
> the pro stuff, like martin mac's and high end systems lights use 5 pin

Is there any standard wiring with that stuff?  I think I encountered some 
3-pin once while working with Sunn dimmer packs...

> ----- Original Message -----
> From: "Roy J. Tellason" <rtellason at blazenet.net>
> To: "Synth-Diy" <synth-diy at dropmix.xs4all.nl>
> Sent: Friday, December 03, 2004 3:47 PM
> Subject: Re: [sdiy] External power connectors
>
> > On Friday 03 December 2004 03:38 am, Colin Hinz wrote:
> > > >   > Major problem with using them is you have to cut a square hole
> > > >   > for the jack.  Well, that and to be safe you'd have pins sticking
> > > >   > out of the back of your equipment ( female on power supply, male
> > > >   > on equipment, cables are all male/female )
> >
> > These the same one that the ARP 2600 used for keyboard?
> >
> > > > I think it's completely reasonable to drop the ejaculation metaphor
> > > > for power supply cables.
> > > >
> > > > (Yes, I'm being completely silly and completely serious at the same
> > > > time.)
> > >
> > > Male-male cables are OK if you practice good cable hygiene. Don't
> > > let any live ends wriggle around where you don't want some volts,
> > > and you'll be fine.
> > >
> > > And on a related note:
> > >
> > > I recently got a bunch of 4-pin XLR connectors (both male and female)
> > > at an unbeatable price.
> >
> > I wouldn't mind finding a deal on those,  provided I could also find both
> > cable and chassis mount.  :-)
> >
> > > Now, I'd *never* use a 3-pin XLR for power, but what about this odd
>
> form?
>
> > > I've never seen 4-pin connectors on any kind of gear. Who uses them,
> > > and
>
> for
>
> > > what applications?
> >
> > The last time I used those was to connect the top and bottom halves of a
> > Rhodes Suitcase,  to replace whatever it was that was being used before
>
> and
>
> > had gotten flaky.  And that was something more than 20 years ago...
> >
> > Hey,  you guys that are talking about +15, -15, +5, and ground,  wouldn't
>
> it
>
> > be a better idea to use a separate ground run for the +5?  I mean, 
> > that's where I'd be running LEDs and logic and such where you'd get all
> > sorts of nasty switching transients that you really want to keep out of
> > the audio
>
> side
>
> > of things...
> >
> > And I have seen a reference somewhere to XLR-type connectors with _five_
>
> pins,
>
> > though I don't recall where -- and I don't even want to think about what
> > they'd cost.