2400 CRC errors

[woodphones]

We have a 2400 connected to a 2000 via CCIS and has been for years, all of a sudden on Friday morning we started getting CRC errors on on the T1 circuit, everytime the erros hit all calls were dropped. We have isolated the problem down to the 2400 by connecting the 2000 directly to the main frame at the 2400 site. We have moved the CCIS T1 card to a different location, reprogrammed and the problem is still there. We are re-started the 2400 and the problem is still there.

Help with any suggestions!!!

 

[ethereal112]

If no programming changes were made, you may want to start by replacing the hardware! T1 card, CSU, Cross Connect from Media Converter to 2000 and 2400, fiber link between sites.