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New Member

Troubleshooting NM-HDV-2T1/E1 Module

Hi,

We are suspecting some problem in one of the E1 port in NM-HDV-2T1/E1 module.

i need to check wheather the port is faulty or not.

Please some one guide me..

Regards,

3 REPLIES
Hall of Fame Super Gold

Re: Troubleshooting NM-HDV-2T1/E1 Module

The ultimate check is a physical loopback made with a rj48c connector with TX and RX pairs crossed. You would see the controller up and error free no matter framing and what other features are selected. However the PRI if configured would not go up.

New Member

Re: Troubleshooting NM-HDV-2T1/E1 Module

Hi Paolo,

Thanks for you suggestion. I have given the hardware loop on the port,AL (LED) status glows orange & CD(LED) glows green. In the Router , status still shows down.

Is it means that port has gone bad... pls let me know.

Regards,

Hall of Fame Super Gold

Re: Troubleshooting NM-HDV-2T1/E1 Module

Please state which pins you have crossed on the connector.

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