V2EX rj-45

RJ-45

释义 Definition

RJ-45:一种常见的网络接口/连接器标准,通常指用于以太网(Ethernet)的 8P8C 模块化水晶头与插座(常用于网线两端),用于连接电脑、交换机、路由器等设备进行有线网络通信。(在日常口语中常把 8P8C 直接称为 RJ-45;严格来说二者并不完全等同。)

发音 Pronunciation (IPA)

/r de frti fav/

例句 Examples

Please plug the Ethernet cable into the RJ-45 port.
请把网线插入 RJ-45 网口。

After crimping the RJ-45 connectors, we tested the cable and confirmed all eight pins had continuity.
压好 RJ-45 水晶头后,我们测试了这根线,确认 8 根芯线全部导通。

词源 Etymology

RJRegistered Jack(注册接口) 的缩写,源自电话与通信行业的接口编号体系;45 是该体系中的一个编号。后来在计算机网络普及过程中,这一名称被广泛用于指代常见的以太网模块化接口(即常见网口/水晶头)。

相关词 Related Words

文学作品/著作 Literary Works

  • Computer Networking: A Top-Down Approach(计算机网络:自顶向下方法)在以太网布线与接入硬件语境中常出现 RJ-45 相关描述。
  • Network+ Guide to Networks在网络介质、连接器与布线章节中常提及 RJ-45。
  • The Practice of System and Network Administration在机房布线、端口管理与网络运维语境中会出现 RJ-45 术语。
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