布线发展史
Testing Plug-Terminated Links—Internationally
수평 케이블이 한쪽 종단이 RJ-45 플러그를 장치에 직접 연결하는 MPTL(Modular Plug Ended Link)은 콘센트와 장비 코드를 별도로 설치 하기 어려운 환경인 무선 액세스 지점과 보안 카메라에서 PoE 조명 및 비디오 디스플레이에 이르기까지 다양한 장치를 연결하는 데 점점 더 인기를 끌고 있습니다.
디바이스 연결 옵션으로 ANSI-TIA 568.2-D에서 승인된 MPTL은 미국에서만 인기가 있는 것은 아닙니다. 하지만 여러분 중 일부는 TIA 표준을 따르지 않는 지역과 ISO/IEC 또는 CENELEC 표준에 대한 MPTL 테스트가 가능한지에 대해 질문하셨습니다. 짧은 답은 "아직은 아닙니다" 하지만 MPTL이 제대로 작동하는지 TIA 표준을 따르지 않는 지역에서도 확인할 수 있습니다.
2020 年 3 月 26 日
标准更新
Since the last standards update, I represented Fluke Networks and attended the TR42 meeting in New Orleans and the SC25 WG3 meeting in Sydney Australia. The following are some of the highlights worth noting.
2020 年 3 月 9 日
深入了解工业以太网电缆
Last month, we published a blog about the various industrial Ethernet connectors including M-series and some new small form factor connectors like the iX and emerging single-pair Ethernet connectors. But what good is a connector designed to withstand the industrial environment without a cable that offers the same protection?
2020 年 2 月 20 日
工业以太网电缆问题 - MICE
Industrial Ethernet is very sensitive to delays caused by dropped or damaged data frames (sometimes called packets). Just a few dropped or damaged packets can cause a machine to shut down. These problems are often intermittent and can be caused by harsh industrial environments.
2020 年 2 月 13 日
了解一下 BICSI 冬季会议！
Planning to attend the upcoming BICSI Winter Conference & Exhibition on February 9-13 at the Tampa Bay Convention Center in Tampa, FL?
Fluke Networks is offering plenty of educational opportunities to learn all about fiber, Industrial Ethernet and more. And you can stop by the Fluke Networks’ Booth #310 during exhibiting hall hours for hands-on demonstrations and one-on-one time with our experts.
2020 年 2 月 6 日
插入损耗出现了什么问题？
Have you ever carefully calculated insertion loss during the design phase and then passed your permanent link testing after installation only to find out that the channel isn’t performing once it went live?
2020 年 1 月 30 日
有时…是电缆
There’s an ad that says, “We know a thing or two because we’ve seen a thing or two.” With billions of links certified by our testers and something like five more every second of every business day, we’ve seen just about every possible cabling problem. Which means we’ve seen plenty of bad cable.
2020 年 1 月 23 日
2020 年 1 月 16 日
History of the RJ45: A Case of Mistaken Identity
Our industry commonly uses the term “RJ45” to refer to the modular 8-position, 8-contact (8P8C) interface deployed for Ethernet over copper twisted-pair network cabling despite it pretty much being a case of mistaken identity.
But since the RJ45 name has stuck, we thought maybe we’d take a closer look at the history of this nomenclature and why to this day, it remains the de facto interface for twisted-pair Ethernet applications.
2020 年 1 月 2 日
电缆测试 101：什么是我的损耗预算？
While you might hear your CFO grumbling about staying under budget from a dollar perspective, staying under your loss budget from a fiber perspective has a much bigger impact on your network performance – which ultimately impacts your bottom line by avoiding downtime.
But how exactly is your loss budget defined and how do you ensure you don’t exceed it?
2019 年 12 月 26 日
