Category 4 cable
Category 4 (Cat 4) is a cable that consists of four unshielded twisted-pair (UTP) copper wires with a data rate of 16 Mbit/s and performance of up to 20 MHz.
It is used in telephone networks which can transmit voice and data up to 16 Mbit/s.[1]
For a brief period it was used for some token ring,[2] 10BASE-T, and 100BASE-T4 networks, but was quickly superseded by Category 5 cable. It is no longer common or used in new installations. Category 4 cable is not recognized by the current version of the TIA/EIA-568 data cabling standards.
References
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- ↑ CCNA: Network Media Types
- ↑ "Local Area Network Concepts and Products: LAN Architecture", May 1996, IBM.com
