[Asterisk-Users] TDM400 pinout

BJ Weschke bweschke at gmail.com
Thu Jan 26 07:30:23 MST 2006


On 1/26/06, bails <bails at westcomuk.com> wrote:
> Chris Bagnall wrote:
> >>Hi I'm looking for a pinout for the above.  Note this has
> >>what i'd call
> >>RJ45 sockets (or someone smart can correct me).  I need to
> >>plug into BT (rj13?).
> >
> >
> > Are you sure the TDM400 has RJ45 sockets? The pair I've got here have RJ12
> > sockets.
> >
> > I assume with the mention of BT, you're in the UK. The line is on pins 2+5
> > of the BT connector, which'd usually translate to the 2 inner pins of an
> > RJ11 connector (pins 2+3). You should find an old modem cable will do the
> > job fine.
> >
> > If your TDM400 really does have RJ45 sockets, then you'd expect the line to
> > be on the middle pins (pins 4+5), similar to a modtap used in structured
> > cabling environments.
> >
> > Regards,
> >
> > Chris
> Thanks, yes they are rj45, we have had rj12 in he past I look at the above.
>
> Like I said though, pity Digium dont supply the information on there
> site or with the cards, its a bit like everything in life today.  We are
> only the customer, but  we're expected to do the running around.
>

 Earlier versions of the TDM400 I believe were RJ45. They were changed
to RJ11 I think I had heard at one point for compliance with some
telco standards outside the US. But, in either case, yes, the middle
pair is the "active" pair for your FXO/FXS ports on these cards
whether RJ11 or RJ45.

--
Bird's The Word Technologies, Inc.
http://www.btwtech.com/



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