[Asterisk-Users] Two zaptel T1 cards: no clock from one

Kevin Blackham blackham at gmail.com
Sat Dec 4 16:00:19 MST 2004


Yeah, proper crossover cable.  I've eliminated all cabling issues with
the T1 analyzer.  I get a full and accurate pattern back when I test
from the cable end where it would have been connected into the T100P,
with the channel bank in loopback.  The main symptom is that when I
hook the analyzer directly to either the channel bank or the T100P,
neither is providing clock.  I could have the channel bank supply one,
but I will have fax/modem calls bridged between the two PCI cards, so
a common clock is best.  The most disturbing thing is that the T100P,
as the only card in a system, provided clock just fine.

There was a thread last month in -dev about being unable to use common
clock source across cards.  Is this related?  How can one cause zaptel
to provide ref clock?  Should I be seeing 1000 interrupts/sec on any
and all TDM cards?

On Fri, 03 Dec 2004 23:59:22 -0500, [email protected] wrote:
> The cable should be cross-connect 1-4, 2-5 each way. Is it?



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