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 Robotics / 24981
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Subject: 
Re: mindstorms NXT
Newsgroups: 
lugnet.robotics
Date: 
Sun, 8 Jan 2006 22:29:26 GMT
Viewed: 
11828 times
  
In lugnet.robotics, Rob Hendrix wrote:
> "John Barnes" <barnes@sensors.com> wrote in message
> news:Isr07J.1rvn@lugnet.com...
> > In lugnet.robotics, Rob Antonishen <rob.antonishen@gmail.com> wrote:
> > > 
> > > > I posted this information earlier:
> > > > http://news.lugnet.com/robotics/?n=24888
> > > > 
> > > > Mark
> > > 
> > > 
> > > 
> > > Here is a sample of the DEC RJ12 connector:
> > > 
> > > http://www.rpelectronics.com/Data/100-306-10.JPG
> > > 
> > > Looks like the same connection.
> > 
> > 
> > Except the new Lego connector has the latch on the opposite side I think.
> > 
> > JB
> 
> I'm with JB on this one.  The press release photos (unless they are
> backwards!!) clearly show that clip being on the opposite side.
> 
> -Rob
> www.brickmodder.net
> 
> JB

On brightening up a picture looking into the ports, I see you're right about
where the connector key is.  Looking on Google, I found that other people cut
the key off normal RJ12 connectors in order to use them with RJ12 DEC MMJ
sockets:  http://www.tldp.org/HOWTO/Text-Terminal-HOWTO-11.html#rj_conn

I also found that unkeyed RJ12 plugs are available:
http://www.cxtec.com/products/item_detail.php?mfg_id=66&manufacturer_part=5-555042-3
.  Looks like this might be the way for us to go when making up our own leads.
We'll have to watch the pin-outs though, and whether just one pair of wires is
reversed in the protocol etc...

Looking at a PDF of these plugs, it seems that there's a standard key shape that
could theoretically be moved to any position sideways.  Also, I found at least
one site where people make rubber surrounds for these connectors - perhaps
someone else makes custom plugs too?

Mark



Message is in Reply To:
  Re: mindstorms NXT
 
"John Barnes" <barnes@sensors.com> wrote in message news:Isr07J.1rvn@lugnet.com... (...) I'm with JB on this one. The press release photos (unless they are backwards!!) clearly show that clip being on the opposite side. -Rob www.brickmodder.net JB (21 years ago, 8-Jan-06, to lugnet.robotics)

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