BN1E1 seems to have different layouts over the time.
i always jumper the cards to TE, so i use a crosslink cable for NT to
TE.
________________________________
Von: openbsc-bounces(a)lists.gnumonks.org
[mailto:openbsc-bounces@lists.gnumonks.org] Im Auftrag von Eric
Cathelinaud
Gesendet: Mittwoch, 10. Juni 2009 10:41
An: Harald Welte
Cc: openbsc(a)lists.gnumonks.org
Betreff: Re: layer 1 debugging
I tried to short the left and to invert the twinax plug (thus pluging
them as in the wiki) and it works too. Then it could be a mistake in the
jumper plan of BN1E1 cause they say that the left is "TE" and not
"NT".
Anyone else dealing with a BN1E1 card to confirm?
Eric Cathelinaud
2009/6/9, Eric Cathelinaud <e.cathelinaud(a)googlemail.com>om>:
2009/6/9 Harald Welte <laforge(a)gnumonks.org>
Hi Eric,
On Tue, Jun 09, 2009 at 12:56:25PM +0200, Eric
Cathelinaud wrote:
Thanks a lot for this layer 1 debugging tutorial. It
helped me a lot since i
was thinking I did something wrong with mISDN. I
checked the step 3 and find
out that my ISDN card was working fine.
Then I tried to invert my twinax plugs and it worked.
I think there is a
mistake in the wiki.
It's written in
http://bs11-abis.gnumonks.org/trac/wiki/BS11_Configuration :
- left Y01 PCM in (from BSC): RJ45 pin 4,5
- Y02 PCM out (to BSC): RJ45 pin 1,2
but for me it works with :
Y01 PCM : RJ45 pin 1,2 (orange / white orange for a
straight cable)
Y02 PCM : RJ45 pin 4,5 (blue / white blue for a
straight cable)
I think that depends on the jumper configuration of your
E1 card. Did you
really put the jumpers in "NT Mode" configuration?
Yes I put NT Mode following the jumper plan (short pins on the
right). My card is a Beronet BN1E1. I will try to short pins on the left
and let you know if working as in wiki.
I can now see the network on my mobile phone thanks a
lot.
great!
--
- Harald Welte <laforge(a)gnumonks.org>
http://laforge.gnumonks.org/
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