Knowledge Base

Category 2 Cable

Category 2 cable, also known as Cat 2, or Level 2, is a grade of unshielded twisted pair cabling designed for telephone and data communications. The maximum frequency suitable for transmission over Cat 2 cable is 4 MHz, and the maximum bandwidth is 4Mbit/s. Cat 2 cable contains 4 pairs of wires, or eight wires total.

The electrical characteristics of category 2 cabling make it unsuitable for most networking purposes today, thus it is no longer installed as premise wiring.

Category 2 Cable is not an official category standard established by TIA/EIA. It has become the defacto name given to Level 2 cables originally defined by Anixter International, the distributor. Official TIA/EIA-568 standards have only been established for cables of Category 3 ratings or above.

Anixter Level 2 cable was frequently used on ARCnet and 4 Mbit/s token ring networks, it is also used in telephone networks, although it is no longer commonly used.

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