케이블링 산업 현황
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).
2021년 8월 25일
While there are many different types of optical connectors depending on what type of components you’re using, LC connectors have become very common throughout the networking industry.
Plastic LC connectors
Using plastic for connections that are going to be plugged in and rarely touched again works perfectly. But, when those connections need to be repeatedly made and disconnected, for example with fiber test reference cords, the flexible latch on the housing often breaks because of the repeated flexing.
2021년 8월 23일
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
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
Polarity defines direction of flow, such as the direction of a magnetic field or an electrical current. In fiber optics, polarity is directional; light signals travel through a fiber optic cable from one end to the other. A fiber optic link’s transmit signal (Tx) at end of the cable must match the corresponding receiver (Rx) at the other end. So, what is fiber polarity? Fiber polarity could be defined as the direction light signals travel from one end to the other end of an optical fiber cable.
2021년 6월 24일
2021년 6월 22일
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
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
Everyone in the ICT industry has heard of a local area network (LAN) and likely understands that it’s a network made up of a myriad of devices—computers, servers, Wi-Fi access points, VoIP phones, surveillance cameras, etc.—all connected in one physical location.
2021년 5월 26일
The newest version now available to the Versiv software updates the cabling certification software on multiple products in the Fluke Networks line. Once installed, these updates add new features to your tools as well as expand the number of cable specifications supported for testing.
2021년 5월 13일