[BC] XDS Programming

[Jason R.]

Funny, I never had a problem with the Netcues... note that you DO have to be
careful not to use the GROUND pins though... only the B pins.
..
> But they did it for the Netcue card relays, too,
> which was a disaster, because if the commons were grounded, ALL the relays
> would fire off whenever activated--and the Netcue was used for many
> different programs.

  Cool beans.  I have a friend at a local cable headend; who's kept up with
a few of the telco guys as they've retired, maybe I can call a buddy who can
call a buddy...

   Y'know, I realized I wasn't 16 anymore when it got hard to see the solder
cups on the connector without glasses...  kept burning my fingers, too...
lol

Thanks for the tip on the jig
Jason

> Here are some tips on this: Get some Cat3 25-pair telephone cable--the
kind
> the phone company used when they wired up the old 1A2 systems. You can
> usually get it cheap if you contact a local telephone equipment provider.>
standard 37-pin hoods I've found are expanded at the cable entry point, and
> you can't put two of them together on many receivers, including the I-Pump
> receivers from Jones. I found some nice hoods from Newark, their stock#
> 67C8410, that are the same thickness front to back, will accept the Cat3
> cable, and they even supply several size bushings for different size
cables.
> And all for $1.15 each. I got black, but they even have colors.
>
> If you use the Cat3 cable, do yourself a favor and sort out the wire pairs
> BEFORE you start soldering to the D-sub connector. You'll need 16 pairs
for
> the relays, and I like to leave a few extra pairs just in case. Twist the
> wire pairs together and they'll be MUCH easier to work with. Cut off the
> excess pairs--they'll just be in the way otherwise.
>
> I made a little jig using one hood, I carved away the shell back to the
wire
> clamp using a Dremel tool, and fastened it to a board. I put the two end
> bolts into the assembly and got two nuts from an old computer card. Now I
> put my 37-pin solder connector into the jig, lay my cable into the shell
and
> clamp it, then position each wire pair over to where it will solder to the
> connector. Cut the wires to length, strip the ends, and you can solder the
> wires neatly into the connector. You have to do one row at a time, then
turn
> the connector over and do the other side. Use a low-wattage soldering iron
> with a small conical tip, and you can do a professional-looking job.
>
> --
> Jerry Mathis
>
> On Sat, Feb 14, 2009 at 10:17 AM, Jason R.
<jyrussell at academicplanet.com>wrote:
>
> > Jerry -
> >
> >  what you're doing sounds exactly like I've started on things.
> >
> >  Over the years, I've gotten into the habit of tying the "B" pins
together
> > at the back of the connector (just a bunch of "U" shaped jumpers, tie
all
> > the "B"'s together at the DB connector) so you only have to run ONE
ground
> > to the automation.  Did it for Wegner boxes, SGI / II / III boxes...
never
> > had a problem.
> >
> >  If I've done things right this time, there should really be 4 or 5
wires
> > out the back you need...  one COM, plus a "hot" for each relay ... (I
say
> > 'hot', how else should I say it?)
> >
> >  Yes, you would use a different port for each station you plan to run -
> > OR - move down the list to the right for a different grouping. why
couldn't
> > you could use RLY 1,2,3 and common the B pins for that to station one,
then
> > use RLY 5,6,7 for the next station, with ONLY those B pins commoned to
> > it...
> > ya think?
> >
> > Talk usually only uses a couple of closures, unless you really get into
one
> > with 58:50 clock resets, record start, record stop, all that stuff...
> > Remember the ABC music stuff years back..?  A bajillion available
relays,
> > but I never used more than a couple, really...
> >
> > Jason
> >
>