I installed a VG248 in our server room. I am experiencing a large amount of line noise on all 48 ports. It is so bad that the modems I have plugged into it are not working. I have many other VG248's throughout the facility and they do not suffer from the line noise. I am thinking that the the amphenol cable running to the the punch-down block is picking up electrical noise from the server room.
Does anyone know a way to configure the VG248 or CallManager to elimate the noise? Do they make shielded amphenol cables that could suppress the noise. Thanks in advance for any suggestions.