1.UTP cat5,25pairs,50pairs,100pairs unscreened cables. 2.It suitable for associate&main line system and opening office. 1.UTP cat 5,25pairs,50pairs,100pairs unscreened cables.2.It suitable for associate&main line system and opening office.3.It is widely applied to voice ,and integrade service data network UTP category 5,25 pairs,50 pairs,100 pairs unscreened cables