bearer problem

[alfa156]

I have a PRI/2CE1u card in a 2620. I have been having a lot of trouble getting it to work with an aggregate bearer (10 x leased lines on one interface). BT inssist the line is ok and I am pretty sure my config is ok. My understanding of the 'Local Alarm' LED on the controller means that no line is connected. Any thoughts? I am using a 'cab-e1-db15' cable to connect to the x21 NTU. But I have my suspicions that BT have terminated on the BNC (but claim it is on the x21). Please help if you know anything this job has gone on long enough.

 

[champ007]

if u r using one side bnc connector then u have problem with connectivity.because pri interface is always RJ45 connector ..so u have to have RJ45 connector bith side ...one questin for u ..which NT r u using?is it provide u by ur local ptt.

 

[alfa156]

Thanks for your respones. I found out the problem. We were using an un-balanced card, on an x21 interface at the NTU. The un-balanced card will only support BNC. BT did terminate on the x21 and are now moving it to the BNC. If BT's network was a balanced network we would have used a balanced card and in this case an x21 interface, the balanced card supports x21, rj-45 and bnc.

Cheers