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Harald Welte laforge at gnumonks.orgHi Ivan,
On Tue, Oct 13, 2020 at 07:07:12PM +0300, Ivan Babanov wrote:
> Today I was able to get hardware working. At least L2 link established and
> I see OML/NM messages.
congratulations! Now the fun part starts.
> Briefly the problem was with ports connections. I did not expected that
> quad-port card requires all ports to be connected. Everything started to
> work after I placed dummy loopback connectors to unused ports 3 and 4.
This definitely does not reflect my experience with any of the DAHDI quad-port
cards I have used so far.
> After it I was able to check physical link with e1-prbs-test and was able
> to communicate with BTS.
Strange. Maybe some bug or problem with the specific model you use, or
related to the suspected IRQ trouble, or it is a question of clocking? Maybe
the clock reference was configured to (only) use a port that had no signal applied?
--
- Harald Welte <laforge at gnumonks.org> http://laforge.gnumonks.org/
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