24 ports CAT-5E UTP patch panel 的 "UTP" 代表什麼?

Unshielded Twisted Pair　(UTP)
圖片參考：http://www.tech-faq.com/lang/zh-TW/utp.jpg

雙絞線是用於以太網的10BASE-T和100base-筆网絡,以及家居及辦公室電話線路. The twist in UTP helps to reduce crosstalk interference between wire pairs.撚度在雙絞線有助於減少串音干擾導線之間密不可分.
UTP電纜標準 Cat 3 UTP第3類雙絞線 Category 3 UTP is rated to carry data up to 10Mbit/s.第三類雙絞線被評為進行數據高達10mbit/秒.
Cat 3 UTP was the standard cable for use with Ethernet 10Base-T.第3類雙絞線的電纜標準為使用以太網的10BASE-T.
Cat 5 UTP第5類雙絞線 Category 5 UTP is rated to carry Ethernet up to 100Mbit/s and ATM up to 155Mbit/s.5類雙絞線被評為進行以太網到100mbit/秒和ATM多達155/秒.
Cat 5 UTP was the standard cable for use with Ethernet 100Base-TX.第5類雙絞線的電纜標準用於以太網和100BASE-TX.10/100/1000.
Cat 5e UTP貓5類線纜 Category 5e UTP is an enhanced version of Cat 5 UTP.類5類線纜是一個增強版第5類雙絞線.
Cat 5e UTP is rated to carry data up to 1000Mbit/s.貓5類線纜被評為攜帶資料到千兆/秒.
Cat 5e UTP is the standard cable for use with Ethernet 1000Base-T.貓5類線纜的標準電纜用以太網1000BASE-T筆.
Cat 5e can also be used to extend the distance of 100Base-TX cable runs up to 350 meters.貓5E號也可以用來延長距離和100BASE-TX.10/100/1000電纜運行高達350米.
Cat 6 UTP六類雙絞線 Category 6 UTP is very similar to Cat 5 UTP, except that it is designed and manufactured to even stricter standards.6類雙絞線是非常類似貓5雙絞線,除外,它的設計和製造更加嚴格的標準.
UTP Termination雙絞線終止 Two-pair (four-wire) UTP used for telephone use is normally terminated in an RJ-11 connector.兩對(四線)的雙絞線用於電話使用通常終止一個RJ-11接口.
Four-pair (eight-wire) UTP used for data use is normally terminated in an RJ-45 connector.4一雙(八線)雙絞線用於數據的使用通常是終止一個RJ-45接口.
http://www.tech-faq.com/lang/zh-TW/utp.shtml

UTP = Unshielded Twisted Pair