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Category 4 Cable (Cat 4 Cable)

Definition - What does Category 4 Cable (Cat 4 Cable) mean?

A Category 4 cable (Cat 4 cable) is a type of twisted pair cable used mainly in telecommunication networks and some computer networks. It was defined in the ANSI/EIA/TIA 568 and ISO/IEC 11801 specifications.

A Cat 4 cable has a variant in unshielded (UTP) and shielded twisted pair (STP) cables, but UTP is the primary version.

Techopedia explains Category 4 Cable (Cat 4 Cable)

A Cat 4 cable consists of four pairs of UTP copper cables. It was initially developed for token ring, 10Base-T and 100Base-4 networks but gained much usage in telecom-based communications. It provides 20 MHz of bandwidth with a data transfer rate (DTR) of up to 16 Mbps. However, for ANSI/EIA/TIA 568, the Cat 4 cable is rated at 20 MHz and 100 MHz for ISO/IEC 11801 specification.

The Cat 4 cable is no longer in use and is not supported by current data cabling standards and associated devices.

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