[asterisk-users] Slightly OT:CSU on Digium cards, and it's requirement

[C F]

What I am thinking is that a CSU could provide mutiple functions,
error handling, diagnostics and signal boosting, which is not built
into the Panasonic equipment, but the lower level signaling that a CSU
could provide is built into it, and that's why it works.
As far as I knew before I read it was that it shoudn't work, but
according to that documentation it is suppose to work.

On 6/14/07, C F <shmaltz at gmail.com> wrote:
> On 6/14/07, Nick Seraphin <asterisk at eaglequest.com> wrote:
> >
> >
> > On Thu, 14 Jun 2007, C F wrote:
> >
> > > On 6/13/07, Erik Anderson <erikerik at gmail.com> wrote:
> > > > On 6/13/07, C F <shmaltz at gmail.com> wrote:
> > > > > This is just weird I wrote it in caps so you can read it but you still
> > > > > didn't read it so here it is again: its a T1 card that does NOT have a
> > > > > CSU in it, and it is working fine and yes it is a T1 providing PRI.
> > > >
> > > > <sarcasm>
> > > > Dang shmaltz.  You've convinced us - we've all been wasting our
> > > > precious money on CSUs this whole time.  We're all idiots!
> > > > </sarcasm>
> > > >
> > > > Seriously - if you're so sure about your card not having a CSU, what
> > > > is the make/model?  Pony up, man.
> > >
> > > It's a Panasonic KX-TA0187 for T1, or KX-TA02290
> > >
> > > The docs and technicians say it doesn have one AND that the FCC
> > > requires it. Hence my qeustion does the FCC require it.
> >
> >
> > I think what he's referring to is really the KX-TD187... which is a T1
> > interface module for the Panasonic KX-TD1232 Digital Hybrid Phone System
> > (I have one of these systems, but not the T1 module).
>
> No, I am reffering to KX-TA0187 which is a T1 card for the Panaosnic
> KX-TDA line. and the KX-TA0290 which is a PRI card for the Panasonic
> KX-TDA line.
>
> >
> > Now there is a KX-TA1232 analog system, and maybe there was a KX-TA187
> > module for it that has since been discontinued... but I think he meant the
> > digital one.
> >
> > http://www.ablecomm.com/t1isdideq.html
> >
> > They do SAY it doesn't have a CSU... but it's beyond my understanding of
> > how it could possibly work without one.
> >
> > They seem to sell a separate "CSU module" that can go with it.  Maybe he's
> > just not seeing the extra little box because there's more wire between
> > that and the demarc?
> >
> > Was this a system that was already installed for you?  Or did you install
> > it yourself?  Maybe the CSU is external and you just didn't recognize/see
> > it there?
>
> No, I installed the system, it goes from smart jack to the PRI card in
> the Panasonic KX-TDA200 thru the 0290 card
>
> >
> > When I first started working with T1's, most CSU's were external.  I still
> > have several of them in storage in fact... and I still use external
> > CSU/DSU's on my production network today. :-)  I'm typing this message and
> > it will be sent over a T1 connected to 2 external CSU's before it reaches
> > the internet.
> >
> > Bottom line is, no matter what the FCC says... and if somehow you managed
> > to get it to work without a CSU... I believe the phone company would have
> > a fit if they knew you connected equipment to their network without a CSU
> > on it.  They're very big on standards-compliance and stuff like that.
> > Sometime look into their rules and regs about colocating equipment inside
> > one of their CO's...  it's very very strict.
>
> The last thing you say is why I am asking this question. The
> compliance doesn't realy bother me that much, what I am afraid is if
> the provider notices this and decides to cut it because of that.
>
> >
> > -- Nick
> >
> >
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