The system is a cs1000 rel.5. I just fixed a major problem with the TMDI cards. They had 3 loops that were no longer connected to the smart jacks (must have happened when they cut over to cisco). They have a fractional T1 that I have looped back to the to the TMDI card. On the telco side the IT tech I was working with could not find if the cable was going to there cisco system or to telco. So I left it loop back on both sides (just to clear the red alarm on the TMDI card). Will this cause any problems in the future?