[*] asterisk ds3

LES.NET (1996) INC. voip at les.net
Sat May 12 10:58:32 CDT 2007


I have no idea what kind of fuses it takes.  There are no markings on them
that I can see.

The power supply puts out 30 amps.  .. I've loaded it up to 10 amps at once.

Les
-- 
For Canada/USA DID's, Call +1.888.VOIP.DID
Leslie Bester
LES.NET (1996) INC.
TollFree: +1.866.944.0009
Winnipeg: +1.204.944.0009


>
> Now that is awesome.
>
> What kind of fuses does that panel take? And How much power does that huge
> power supply deliver?
>
> -----Original Message-----
> From: asterisk-bounces at muug.mb.ca [mailto:asterisk-bounces at muug.mb.ca] On
> Behalf Of LES.NET (1996) INC.
> Sent: Friday, May 11, 2007 5:41 PM
> To: asterisk at muug.mb.ca
> Subject: [*] asterisk ds3
>
>
> I had quite an exciting day...
> I finally provisioned my new DS3 to work with asterisk.
>
> Not having worked with DS3 before, I had absolutely no idea what I was
> doing.
>
> I managed to built a prototype rack to test it out..
>
> You can see the monster at:
> http://les.net/lesnetds3.jpg
>
> Basically, DS3 comes in fiber, gets converted to coax, goes into the M13
> MUX (which is powered by -48VDC), then comes out two 32 pair cables into a
> bix block, cross connected to a patch panel, then uses a normal patch
> cable to go to the digum quad card.
>
> The only thing running on it at the moment is an MTS PRI that I bought to
> test things out.
>
> Quite a few learning curves with this...
>
> I've never worked with -48VDC equipment before, and figured out which was
> +, - was a bit confusing, since it is -48..    (So, is + - .. or is - +
> ???)  All my guesses were correct, and I ended up NOT frying any
> equipment.
>
> I blew the fuse on the DC fuse panel though, and cannot find any
> replacement fuses.  So I had to tear apart the metal sliding door cover
> from a 3.5" floppy, and mangle it into the shape of fuse.. (abe lincon
> style).   .. it only shot sparks out twice upon power up before it arc'd
> nicely to the rest of the fuse receptical.
>
> Never worked with a DS3 M13 mux before either..  had to macguyver a
> craft-cable (basically, RS232->RJ45)  to login to the thing and configure
> it.    And being as cheap as I am, I didn't want to blow $2500 on a
> brand-new DS3 Mux.  So I stalked a few used units on ebay for a month
> prior to this.   My logic was to buy three at about 500 each and hope
> chance was on my side for having a complete working unit  (Which is the
> way it actually turned out).  Plus, once everything is up and running,
> I'll have lots of spare parts for emergencies.
>
> The Mux has two amphenol 64 connectors on the back (and no documentation
> as to what pins do what).   So an evening with a toner/multimeter
> discovered the cable makeup.  .. I ordered the cable from Priority.. but I
> guess I didn't specify the internal wiring coloring.. so I literally have
>  two orange/whites, two blue/whites, etc. etc. for the entire color
> scheme.  (Hence the multimeter exploration)
>
> Finally (today), I wired what I *thought* would be the three possible sets
> of wires for the corresponding DS3 timeslot to the bix block.  The bix
> block allowed me to rapidly punch down/pull off the wires incase I made
> some mistakes.
>
> I broken down into the "Hulk Pose" and growled when I saw the lights on
> the digium PRI card go from red-alarm, to yellow-alarm, to green :)
>
> Either way, total labour from receipt of equipment to working provisioned
> system was about 13 hours (over a few days)
>
> Fun stuff.
> --
> For Canada/USA DID's, Call +1.888.VOIP.DID
> Leslie Bester
> LES.NET (1996) INC.
> TollFree: +1.866.944.0009
> Winnipeg: +1.204.944.0009
>
>
>
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