Category 5 cabling is the most popular form of UTP cabling in 10/100-Mbps Ethernet workgroup or departmental LANs. UTP cabling has an impedance of approximately 100 ohms and comes in various grades or categories based on data transmission capabilities, as shown in the following table. Unshielded twisted-pair cabling (UTP) is the most common form of network cabling for workgroups and departmental local area networks (LANs) because of its low cost, flexibility, and good performance. The outer insulating jacket protects the cable from physical stress or damage but does not shield the cable from electromagnetic interference (EMI). Unshielded Twisted-pair Cabling, or UTP cabling, is Twisted-pair cabling with no internal shielding. What is Unshielded twisted-pair (UTP) cabling? Definition of Unshielded Twisted-pair (UTP) cabling on Network Encyclopedia.
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