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Setting up PRI on 3COM NBX

Posted on 2006-10-28
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Last Modified: 2008-01-09
I am trying to setup E1 PRI on my 3COM NBX SS3 running on firmware R4_3_17. Can anybody help me in setting it up?

Details:
PRI in terminated at remote location CISCO routers are used as PRI gateway to transport it to central office where NBX is located. PRI is being transported on CISCO routers from remote location to central office but sadly when I connect it to NBX, my NBX remains at Red Alarm status. So far I have tested two digital line cards with the same result. My initial impression is maybe CISCO and 3COM NBX need to get similar protocols which they apperantly dont have at this time.

Thanks,
Taimur
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Question by:taimur
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7 Comments
 
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Expert Comment

by:tim1731
ID: 17829310
Is thia a D series TI card or an older one
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Accepted Solution

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jfrady earned 2000 total points
ID: 17857491
If you are getting Red alarm you are not getting even a Layer 1 connection.  Check your wiring first.  You will likely need a T1 crossover cable in this instance.  Pins 1,2 to 5,4 on your RJ45 connectors.

The 3Com card is standards based and supports most signalling protocols.  What is the Cisco and 3Com set at?
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Expert Comment

by:jfrady
ID: 17863934
Taimur - any updates ?
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Author Comment

by:taimur
ID: 18316004
Sorry for not answering this question for a long time. But i do agree to the forced acceptance of this question because we already fixed that problem exactly the way jfrady explained. Thank you!

Taimur
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Expert Comment

by:jfrady
ID: 18317088
Glad it worked out for you!  Thank you for the closure.
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