[asterisk-users] E1 connectivity question

Mohamed A. Gombolaty
Wed, 26 Jul 2006 04:14:50 -0000

Dear Steve,

Yes I did mean a csu/dsu I will try your suggestion and update the results.

Thx
MAG

Steve Totaro wrote:

> Mohamed A. Gombolaty wrote:
> > Dear All,
> >
> > I have bought a digium TE205p in order to move our E1 pri from a
> > siemens pbx to an asterisk server platform, I have already gathered
> > the data needed to configure the card but I am troubled by one thing
> > that seems unclear on all the documents I read.
> >
> > The E1 is currently inserted in a modem and from the modem goes out a
> > cable to the siemens pbx so should I take the E1 from that modem or
> > take the E1 directly from the provider, plus is there any special pin
> > assignment.
> >
> > Your Help will be very much appreciated.
> >
> > --
> > Thx
> > MAG
> >
> If you really mean to say modem then what you are doing will not work.
> Maybe you mean a CSU/DSU?  If it is a CSU/DSU or "the box that the
telco
> owns, take the cable coming out of it.  Plug it into your asterisk box
> and see if you get a green light.  I suspect you will since it is
> working with your Siemens box.  If not, make an E1/T1 crossover cable.
> Pinout is:
> 1 -> 4
> 2 -> 5
>
> Thanks,
> Steve Totaro
>
> Thanks,
> Steve
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--
Thx
MAG