junoooni

Dear Nortel Professionals,
I am a telecom engineer dealing in Avaya, GSM Gateways, and Recording Machines....I am trying to integrate my GSM PRI Gateway with a Nortel CS1000 system. I am literate about how PBXs work(Avaya) but dont have any nortel background. I am facing an issue that when i connect my GSM Gateway with Nortel system, PRI interface works for around 2-3 hours and after that layer 2 goes down and layer 1 is sync and connected. Nortel system keep showing DTA301 error and when nortel guy issue some command(lcnt i belieive) it shows all errors which r zero but SLPDEL keeps increasing. PRI keep bouncing up and down but when the counter reaches 1000, it does not enable D-channel and administrator have to enable/disable the D-channel. System is connected as:

Nortel PRI Card>>> Amphenol connector>>>DB9 Male Connector>>> DB9 female connector>>> RJ45>>> GSM Gateway.

I am unable to find any solution as we dont do anything on ISDN parameters on our device, and my device was working perfectly fine with another nortel system(option 11c i believe) but its not working for other client who have CS1000... Appreciate if someone could guide me... Also, if someone could tell me the pin-out configuration for Nortel's Amphenol PRI Connector.