V2EX straight-through cable

Straight-through Cable

释义 Definition

直通线(直通网线):一种以太网线缆,两端水晶头(RJ45)的线序相同(通常两端都按 T568A 或都按 T568B 标准压接)。常用于连接不同类型设备,如电脑(主机)交换机、路由器交换机。(注:在支持 Auto-MDI/MDI-X 的设备上,很多情况下直通线与交叉线都能正常使用。)

发音 Pronunciation (IPA)

/stretθru kebl/

例句 Examples

I need a straight-through cable to connect my PC to the switch.
我需要一根直通网线把电脑连接到交换机。

In a typical Ethernet setup, a straight-through cable is used between an end device and a switch, while a crossover cable is reserved for connecting similar devices when auto-negotiation isn’t available.
在典型的以太网布线中,直通线用于终端设备与交换机之间;当不支持自动协商时,连接同类设备才会使用交叉线。

词源 Etymology

straight-through 字面意思是“直通的、直接贯通的”,在网络布线语境中指两端线序一致、信号脚位“直进直”;cable 源自拉丁语 capulum(绳索/缆),经法语演变进入英语,现代多指各种“电缆/线缆”。合起来就是“线序不交叉的网线”。

相关词 Related Words

文献与作品 Literary / Notable Works

  • CCNA 200-301 Official Cert Guide(Wendell Odom)
  • Network+ Guide to Networks(Jill West 等)
  • Cisco Networking Academy: Introduction to Networks(课程教材/官方资料)
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