As the society is entering the information age, electronic computers and communication technologies are mergered in together. The cmmunication technologies are highly developed. In intelligent buildinds. It is nessary to integrate th eaudio, data, moving images, multi-media, etc. Into a single cabling system, in order to realize the share of information resources and automatic manageed. As a result, category #5 cable that has excellent electrical characteristics was developed. This kind of cable is used in digital communication systems.
