케이블링 산업 현황
광케이블 및 테스터가 400G 이더넷을 사용할 준비가 되어 있습니까?
Driven by large hyperscale and cloud data center providers, advancements in signaling and transceiver technology have led to the development of next-generation transmission speeds. There are now multiple options available for 400G Ethernet applications over multimode and single-mode fiber with more on the horizon. And it doesn’t stop there—big players like Google, Facebook, and Microsoft are driving innovation to support 800 Gig and 1.6 Terabit applications, and the IEEE Beyond 400 Gig Ethernet Study Group is already defining objectives.
2021년 9월 28일
삽입 손실
What is Insertion Loss?
Insertion loss is the amount of energy that a signal loses as it travels along a cable link. It is a natural phenomenon that occurs for any type of transmission—whether it's electricity or data. This reduction of signal, also called attenuation, is directly related to the length of a cable—the longer the cable, the greater the insertion loss. Insertion loss is also caused by any connection points along a cable link (i.e., connectors and splices).
Insertion Loss Formula
2021년 8월 25일
금속 LC 커넥터: 래치 파손의 우려가 없는 광케이블 테스트 참조 코드
虽然根据所使用的组件类型，有许多不同类型的光纤连接器，但LC连接器已广泛应用于整个网络行业。
塑料LC连接器
塑料连接器用于插入后很少反复插拔的连接时，效果会很好。但是，当需要反复建立和断开连接，例如使用光纤测试参考跳线时，外壳上的柔性锁扣经常会因为反复弯曲而断裂。
塑料LC连接器上损坏的锁扣示例
2021년 8월 23일
PoE 부하 테스트: PoE 시스템을 위한 고급 문제 해결
Since the original IEEE 802.3af Type 1 power over Ethernet (PoE) standard that delivered up to 15.4 Watts (W) was first introduced in 2003, the technology has evolved to include Type 2 (up to 30 W), Type 3 (up to 60 W), and Type 4 (up to 90 W). That means PoE voltage now supports everything from phones, Wi-Fi access points, and surveillance cameras, to laptops, digital displays, and even facility-wide LED lighting—all requiring various levels of PoE power.
2021년 7월 27일
데이터 센터에서 교차 연결 및 상호 연결
In the data center space, cross connects and interconnects via patch panels are commonly used between active equipment purely for management and flexibility, typically residing between switch tiers or between switches and servers. Some scenarios even call for using multiple cross connects or interconnects within the same channel, or a combination thereof.
2021년 7월 14일
2021년 6월 22일
케이블 및 광케이블 네트워크 테스터 청소 방법
Cleanliness has long been a best practice in fiber optic installation, but it’s not just the fiber end faces you need to worry about. If you think about how often your cabling tools and testers are touched by you and others on the job site, it’s clear that they too need to be cleaned.
While a fiber end face and your Fluke Network tester are cleaned for two different reasons, the goal in both instances is to clean without causing any damage.
2021년 6월 11일
패치 코드 및 광케이블 점퍼 케이블 테스트 방법 - 가장 약한 링크
Equipment cords are an integral part of any network—whether it’s a fiber jumper used to make connections between fiber patching areas and switches in the data center or a copper patch cord out in the LAN to connect end devices to the work area outlet.
2021년 6월 10일
LinkIQ를 사용한 VLAN 문제 해결
所有ICT业内人士都听说过局域网(LAN)，而且可能知道局域网是一个由无数设备组成的网络——计算机、服务器、Wi-Fi接入点、VoIP电话，监控摄像头等等。所有这些设备都连接在同一个物理位置。
由于从技术层面上讲，虚拟局域网(VLAN)在物理角度上并不存在，其本质表现为物理上独立的局域网，并基于功能实现流量隔离，尤其对于只习惯于处理物理基础设施的安装人员和技术人员来说，更令人困惑。
今天小福带你深入了解一下，为什么要使用VLAN，以及其对电缆设备的故障诊断和排除有何影响。
2021년 5월 26일
2021년 4월 28일
