“Category 2 cable”的意思、由来-开放百科全书

词条

Category 2 cable

释义

References
Citations and notes Bibliography
External links

Category 2 cable, also known as Cat 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 4 Mbit/s.^[1] Cat 2 cable contains 4 pairs of wires, or 8 wires total.^[2]

Official TIA/EIA-568 standards have only been established for cables of Category 3 ratings or above. Though not an official category standard established by TIA/EIA, Category 2 has become the de facto name given to Level 2 cables originally defined by Anixter International, the distributor.{{cn|date=October 2016}}

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

References

Citations and notes

1. ^Meyers; Page 69.
2. ^Carpenter; Page 231.

Bibliography

Meyers, Mike. All-In-One ComptTIA Network+ Exam Guide, Fifth Edition, McGraw Hill Publishing, 2012.
Carpenter, Tom. CompTIA CTP+, Convergence Technologies Professional Certification Study Guide, McGraw Hill Publishing, 2012.

External links

CCNA: Network Media Types
[https://www.pcmag.com/encyclopedia_term/0,1233,t=cable+categories&i=39162,00.asp PC Magazine, Encyclopedia, Cable Categories]

2 : Networking hardware|Signal cables

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