Networks transmits signals through two type of medium. One medium is cables and other medium is air. Cables have most popular usage. We will look different type of cables. And how these cables are used, their performances and characteristics.

網路通過兩種型別的媒體傳輸訊號。 一種介質是電纜，另一種介質是空氣。 電纜是最流行的用法。 我們將尋找不同型別的電纜。 以及這些電纜的使用方式，效能和特性。

同軸電纜 (Coaxial Cables)

Coaxial cable or simply coax is a type of cable using a core conductor which is surrounded with a insulating layer. This insulating layer is also surrounded with a conductor too. This two conductor is used to transmit signals.

同軸電纜或簡稱為同軸電纜是一種使用芯線導體的電纜，芯線導體被絕緣層包圍。 該絕緣層也被導體包圍。 這兩個導體用於傳輸訊號。

This cables was used in the old times as main networking component. Because there was a lot of this type of cables and they were cheap. Coax is all ready used for cable TV.

該電纜在過去曾用作主要的網路元件。 因為這類電纜很多，而且價格便宜。 同軸電纜已準備好用於有線電視。

Coax performance is very limited from networking point of view.

從網路的角度來看，同軸電纜的效能非常有限。

庫珀(DSL)電纜 (Cooper (DSL) Cables)

Cooper cables are mainly used for telephone systems. While computer networks are becoming more popular these all ready existing cabling infrastructure is used for networking. Cooper cables are mainly used for last mile of internet by ISP’s. Because the cheapest way to provide internet connections the the customers is using all ready existing infrastructure. From POP points to the customer residence cooper cables are used.

Cooper電纜主要用於電話系統。 隨著計算機網路變得越來越流行，所有這些現成的現有佈線基礎設施都用於聯網。 Cooper電纜主要用於ISP的網際網路的最後一英里。 由於提供網際網路連線的最便宜的方式，客戶正在使用所有現成​​的現有基礎架構。 從POP點到客戶住宅，使用銅纜。

Cat(類別)電纜 (Cat (Category) Cables)

Cat cables are most popular usage for the computer networks. Because cat cables are cheap and provide good performance in the LAN usage. CAT have different types for usage bu most popular are CAT5 and CAT6 .

Cat電纜是計算機網路最常用的用法。 因為Cat電纜便宜，並且可以在LAN使用中提供良好的效能。 CAT具有不同的使用型別，最流行的是CAT5和CAT6。

CAT5 (CAT5)

Cat5 is an older version of cable but used widely along network infrastructures.

Cat5是電纜的舊版本，但在網路基礎結構中廣泛使用。

六類 (CAT6)

CAT6 is newer version of CAT standard. It is currently deployed everywhere.

CAT6是CAT標準的更新版本。 目前已部署到各處。

光纖電纜(Fiber Cables)

Fiber cables are next generation cables used for new installations. Fiber cables are generally preferred by ISP’s. Because fiber cables gives long range and high bandwidth. But the cost of fiber cable is much higher than other type of cables. This makes fiber less favorable in the LAN network infrastructures.

光纖電纜是用於新安裝的下一代電纜。 ISP通常首選光纖電纜。 因為光纜可以提供長距離和高頻寬。 但是光纜的成本比其他型別的電纜高得多。 這使得光纖在LAN網路基礎架構中不太受歡迎。

翻譯自: https://www.poftut.com/ethernet-cables-like-cat-coaxial-fiber/