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Keystone Jacks

Keystone Jacks are female connectors used in data communications, particularly local area networks (LANs). The jacks are usually mounted in wall plates or patch panels. Copperled can provide from Cat.3 to Cat.8 network Keystone Jack with RoHs&UL certified. Working with Copperled, you could receive the newly developed products every 1-2 months.

FAQs of Keystone Jacks

  • What is a keystone jack used for? What is a keystone jack used for?

    A keystone jack is a female connector used in data communications, particularly local area networks (LANs). The jack is usually mounted in a wall plate or patch panel. A keystone plug is the matching male connector, usually attached to the end of a cable or cord.

  • How to Terminate Punch Down Style Keystone Jacks How to Terminate Punch Down Style Keystone Jacks

    Step 1: Make sure the stripper is adjusted properly on a scrap piece of cable. ...

    Step 2: Straighten the pairs out completely and lay them over the top of the keystone jack noting the color pattern for the 568b wiring. ...

    Step 4: Using a punch down tool punch the wires down into the blades built into the keystone jack.

  • What is an RJ 45 connector? What is an RJ 45 connector?

    A registered jack (RJ) is a standardized physical network interface for connecting telecommunications or data equipment. ... The most common twisted-pair connector is an 8-position, 8-contact (8P8C) modular plug and jack commonly referred to as an RJ45 connector.

  • Can I plug a cat6 cable into a cat5 jack? Can I plug a cat6 cable into a cat5 jack?

    Of course, Cat6 Cable can work on Cat5 network. It is backward compatible with previous specifications, which means it can be effectively used with Cat5 network. ... Category 6 cable has better specifications than 5 or 5e, enabling it to support faster data transmission when installed with compatible devices.

  • How do you remove a keystone? How do you remove a keystone?

    Theres no need for tools to remove keystone jacks, you do need a tool to remove the insert/clip from the plate itself. To remove the jack, you pull the jack towards the spring-clip side and it should pop out of the other side. To put it back in its opposite: spring-clip side goes in last


  • CCA, CCS, CCC VS Pure Copper-Know The Difference?

    Nov 09 , 2020

    What is CCA?

    The most common alternative to copper used in the electrical industry is aluminum. Widely used in power distribution, many aluminum cables are buried under the road as power cables. CCA is an aluminum conductor with a thin copper coating. It’s made by encasing a rod of aluminum in a layer of the copper strip which is butt-welded along the seam to totally encase the aluminum. The entire rod is drawn through a series of rollers and dies to reduce the diameter to as little as 0.1mm, just over the thickness of a human hair. The main disadvantages are its lack of flexibility, higher resistance, and lower conductivity compared with copper. This means you have to use more of it to carry the same current or amps. In a power cable, this is not normally a problem as you only have to go up a size or two. It results in a bigger overall cable using more insulation, sheathing, and armoring, but the savings made over an equivalent copper cable are considerable. Aluminum is also used in some high-frequency coaxial cables where aluminum can perform better than copper at very high frequencies (GHz). In both these cases, the aluminum is bare (silvery in color) and is easily spotted. It is not being disguised to look like copper.

    CCA does have some advantages over solid copper, mainly surrounding weight and cost. CCA is significantly lighter than copper and in some applications can offer advantages in cable containment and handling. Aluminum is around a third of the price of copper and therefore provides cost savings over solid copper conductors. Theft is also less likely with scrap values largely reduced. It also has better corrosion resistance over plain aluminum.

    What is CCS?

    CCS (copper-clad steel) is similar to CCA in that a steel conductor is thinly coated with a layer of copper. Steel gives higher mechanical strength than aluminum but is heavier and less flexible. It is of course also less conductive than copper. It’s manufactured in the same way as CCA, whereby the applied copper is drawn down to smaller diameters through rollers and dies.

    The higher mechanical strength makes for a robust alternative to copper which minimizes physical damage during installation compared to aluminum. Problems arise when both CCA and CCS are passed off as pure copper cables. Neither is suitable for applications where pure copper has been specified and can cause long-term problems which can be costly to rectify once the cable has been installed.

    What is CCC?

    Another significant problem is the use of recycled copper as a conductor material. Known as CCC (Copper Clad Copper), these conductors use low-grade copper alloys made from mixing recycled copper with impurities such as brass, tin, and other contaminants and forming them into an 8mm rod. This is then clad in copper foil and reduced using the same process as CCA resulting in a conductor full of impurities with a very high oxygen content and resistance that may be even higher than aluminum. This can be very difficult to spot as the conductor looks ‘yellow-ish’ (much like copper when cut through). The best way to check is to measure the resistance of the conductor if you have the right equipment.

    What are the hazards associated with CCA and CCS?

    The main problems are that aluminum and steel have a much higher resistance than copper. This leads to a decrease in current capacity resulting in the cable overheating and potentially leading to a fire. Aluminum is also far more brittle than copper and this can lead to breakages during installation.

    These cables are also prone to fatigue at the point of termination which can cause random faults. This is particularly true with insulation displacement connectors (ICD). Alarm systems using CCA could lead to false readings and false alarms whilst with coaxes it leads to degradation of picture quality, particularly over long distances.

    Why this is a problem?

    One of the difficulties is that even on close inspection it can be very difficult to spot CCA. As the cable is cut there is a tendency for the copper to smudge over the cut end of the aluminum making it look like solid copper. Sometimes it’s possible to tell with a magnifying glass or a simple burn test using a cigarette lighter. Aluminum has a higher melting point than copper for example.

    CCA must not be simply dismissed out of hand, however. Some applications, short runs, for example, CCA could well work to an acceptable standard. In this case, make sure you are aware of what you are buying and are receiving a significant cost saving. In some applications, the savings may be worthwhile whereas, in others, the return visits and customer dissatisfaction will be too great.


    Talk to your supplier and make sure you are aware of what is being supplied. Resistance may not be a problem over short runs. In some cases, the cost-saving can be attractive but make sure you have considered the application and what the installation is intended to achieve. If like most users, you want to simply ‘install and forget’ you may be better to stick with pure copper conductors and benefit from their proper performance characteristics. Check the standard that the cable should meet, if pure copper is specified it been done for a reason, in which case you need to question if substituting CCA or CCS is a good idea.

  • Happy 2020 National Day In CHINA!

    Sep 30 , 2020

    Dear Partners:

    Hereby, we would like to inform you that our office will be closed from Oct 1st -7th and we will resume work on Oct 8th, for any urgency regarding business, please feel free to send email to or reach us by call +86 13510253425.

    Thanks for your kind attention. We wish all of you a prosperous business.

    Thanks & Best Regards,

    Copper led International Sales Dept.

  • Why The Future-ready Data Center Needs Flexible Cabling?

    Sep 22 , 2020

    Especially as data center engineers and ICT professionals brace for the demands of new technologies such as 5G, edge computing, artificial intelligence (AI), and the continuing growth of software-defined networking (SDN) across the enterprise landscape, how can they best prepare data center infrastructure and cabling to support these initiatives while ensuring scalability and flexibility for the future?


    Fiber cable

    More dynamic than ever

    Make no mistake, data centers are a more dynamic environment than ever before, with data center infrastructure management (DCIM) tools and sophisticated sensors assisting IT staff to monitor power and thermals, and manage asset utilization at a level that has made the contemporaneous use of spreadsheets and Stanley tape measures seem like Stone Age tools. That said, the best way forward-looking data center operators can support SDN, edge computing, and AI initiatives, as well as 5G, is by deploying cabling infrastructure that is adaptable and scalable. What may seem to be enough capacity today might not be next year, next month, or even next week. Being able to add capacity through a scalable solution without having to redo the install from scratch will save a lot of time, effort, and money when the time for implementation arrives.

    Another way cabling infrastructure can support these initiatives is by being standard-driven. By complying with standards such as the Telecommunications Industry Association’s (TIA) TIA-942 - was the first standard developed by an accredited standards organization that specifically addressed physical data center infrastructure - or various Institute of Electrical and Electronics Engineers (IEEE) standards, cabling providers can ensure flexibility through interoperability of the solution with other providers, which ultimately benefits the end-user.

    Replacing the fridge

    By far the most arduous challenge regarding optical fiber connectivity in the data center is managing the immense amount of fiber, whether it is in the demarcation point of the entrance room or within the facility itself. What used to be a few dozen or hundreds of fibers is now a few thousand. The trend we’re now witnessing is the revamping of the entrance room to eliminate outdated proprietary splice closures, affectionately known as “fridges,” so-called because of their physical resemblance, and replacing them with modern, more efficient, and user-friendly high-density fiber management systems. Obviously, the room’s dimensions are fixed, so the only solution to pack more fiber into the same footprint is to reduce the space the equipment takes and manage the cabling more intelligently.

    Fortunately, there are now modular fiber distribution frames designed to install in any standard 19 in rack or cabinet that provide high fiber count, high-density fiber management, and termination, including complete vertical cable management, slack management, routing, and strain relief feature all within the width of a standard 19 in the rack.

    Of course, the need for sound cable management and reliable connectivity isn’t limited only to the entrance room of the data center. Equally critical is the equipment room, which contains the main distribution frame — the primary location for backbone cabling — along with phone systems, power protection, uninterruptible power supplies (UPS), LAN equipment, and any file servers and data processing equipment, including the mechanical terminations.

    The work area is the point at which the network interacts with staff on a floor. This is where horizontal cabling distribution enables the interaction between the workstation and the telecommunications room. The telecommunications room houses equipment, cable terminations, and cross-connects that serve a specific office area, and/or floor. The telecommunications room is the critical point between the work area and the equipment room or main cross-connect, linked through backbone cabling connecting the equipment room to the telecommunications room, and horizontal distribution connecting the telecommunications room to the work area.

    Telecoms room serves a floor

    The telecommunications room is typically a floor-serving room for horizontal distribution and should be designed and equipped in compliance with the American National Standards Institute (ANSI) TIA-569-B protocol. TIA-569-B provides design standards for the entrance room, equipment room, and telecommunications room with respect to construction and environmental controls. One of the key features of TIA-569-B is the necessity for pathway diversity and redundancy to ensure continuous operation in the case of a catastrophic event.

    Considering the investment in time and money that will be required to quickly get up to speed, and the risk of missed opportunities now is the time to prepare the data center with a cabling infrastructure that is adaptable, flexible, and scalable to the requirements of the aforementioned newly arriving technologies. The future of your organization’s digital transformation, or that of your customers, will almost certainly depend upon it.

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