Category 4 cable
Twisted pair cable for networks
Category 4 cable (Cat 4) is a cable that consists of eight copper wires arranged in four unshielded twisted pairs (UTP) supporting signals up to 20 MHz.[1] It is used in telephone networks which can transmit voice and data up to 16 Mbit/s.[2]
For a brief period it was used for some Token Ring,[3] 10BASE-T, and 100BASE-T4 networks, but was quickly superseded by Category 5 cable. It is no longer common or used in new installations and is not recognized by the current version of the ANSI/TIA-568 data cabling standards.
References
- v
- t
- e
Unshielded and shielded twisted pair cabling standards
- Cat 1
- Cat 2
- Cat 3
- Cat 4
- Cat 5/5e
- Cat 6/6a
- Cat 7/7a
- Cat 8/8.1/8.2
- See also
- Copper cable certification
- Ethernet over twisted pair
- Modular connector
- TIA/EIA-568
- Twisted pair