Category Archives: Copper Network

Pre-terminated Copper Cables: Interconnect & Cross Connect Solution

Copper cables are regarded as the optimal solution for data center, which provides significant benefits in the respect of capital expenditures, operating expenditures, performance, and reliability. Pre-terminated copper cable assemblies, emerging as a new copper cabling option for network architectures such as MoR (Middle of Row) or EoR (End of Row), are recommended for interconnect and cross-connect applications in data center.

What Is Pre-terminated Copper Cable Assemblies ?

Pre-terminated copper cable assemblies consisting of pre-terminated copper trunks and copper patch cords (usually terminated with RJ45 connector), are ideal for data center applications which  require high-efficient deployment. Being factory pre-terminated and strictly tested, the pre-terminated copper cable assemblies simplify network installation and maintenance, saving users much time and energy. Moreover, they offer more flexibility to be disassembled and repurposed to accommodate MACs (moves, adds and changes), facilitating management when rapid network growth and migration required.


Commonly used in point-to-point connections in data centers, pre-terminated copper trunk cables enable reliable connectivity between server and switch cabinets. While copper patch cords are used to connect panels to switches and servers. Moreover, intelligent patch cords are available to monitor port status.

Tips: various termination types are available for the pre-terminated trunks, such as jack-to-jack, jack-to-plug, plug-to-plug, cassette-to-cassette, and so on. So, your choice should base on the layout of the data center or telecommunications room, and the design philosophy employed.

How to Use Pre-terminated Copper Cable Assemblies?

Pre-terminated copper cable assemblies can be used in data center for backbone or intra-rack cable connectivity. This section illustrates the interconnect and cross-connect connectivity using pre-terminated copper cables in universal data center cabling applications.


For general data center cabling, copper trunk cables are used to make a permanent link between patch panels on each ends—one end is in a switch/network cabinet, and the other end is in a server/storage cabinet. And patch cords are usually used to interconnect the active equipment such as switches, servers, etc.


Cross Connect

In cross-connect cabling configuration, an individual patching area (often including two or more adjacent patch panels) is usually added between the switch/network cabinet and server/storage cabinet. Thus, two copper trunk cables are used as two permanent links between them. One runs from the switch/network cabinet panel to cross-connect panel, and the other one runs from cross connect panel to the panel in the server/storage cabinet. Copper patch cords are used to interconnect the active equipment and patch panels at the switch/network cabinet, cross-connect cabinet, and server/storage cabinet.


FS.COM Pre-terminated Copper Cable Assemblies Solution

FS.COM offers a wide range of configurable pre-terminated copper cable assemblies and patch panels to meet the demand for faster deployment and guaranteed performance in data center copper cabling, help saving time and money.

Pre-terminated Copper Cable Assemblies Pre-terminated Copper Trunk Cable
Copper Patch Cords Cat5e Patch Cord
Cat6 Patch Cord
Ca6a Patch Cord
Cat7 Patch Cord
Modular Patch Panel Cat5e Patch Panels
Cat6 Patch Panels
Other Accessories Cat5e Connector/Plugs
Cat6 Connector/Plugs
Cat7 Keystone Jacks & Plugs

Pre-terminated copper cable assemblies offer an ideal solution for data center interconnection and cross connect applications. All the pre-terminated copper cables, patch panels and related accessories presented in the above chart are available in FS.COM. For more details, please visit for contact us directly via

How to Wire Cat5e Ethernet Cable

Copper Ethernet cables like Cat5, Cat5e and Cat6 are widely used in our network. Various Ethernet network cables are being invented. They can support different transmission distances and applications. Cat5e can support 1000base-T transmission up to 100 m, which meet the requirements of various applications in our home, office and data center. It has better performance than Cat5 and lower price than Cat6 making it a widely accepted types of Ethernet cable. This post introduces the details of how to wire the Cat5e cable.

cat5e wiring guide

Structure of Cat5e Cable

Cat5e uses four twisted pairs for transmission in each cable. The following picture shows the structure of Cat5e cable. The termination of Cat5e Ethernet cable should use RJ45 connectors. As there are four pairs of copper wires inside a length of Cat5e cable, the cable pinouts should be carefully managed. For Cat5e, there are two commonly used methods for termination: straight-through and Crossover.

cat5e structure

Cat5e Wiring Methods

Each pair of copper wires in the Cat5e has insulation with a specific color for easier identification. Wiring of Cat5e cable should follow the standard color code.

For straight-through wiring method, there are two standards recognized by ANSI, TIA and EIA: T568A and T568B. Both of them can be used. However, the T568B is considered better than T568A wiring standard. The following picture shows, wiring diagram of the two standards.

straight through cat5e

When you are doing the straight-through wiring, the cable pinout on the two ends of the Cat5e cable should be the same. However, for crossover wiring method, the RJ45 pinouts on each end of the Cat5e are different. The following picture shows how the eight wires are used for transmission in a crossover terminated Cat5e cable.

Crossover cat5e

Actually, if you want to connect a T568A device with T568B device, you can use this crossover wiring method. The following picture shows the pinouts on each end of the Cat5e cable.

Crossover cat5e

Processes to Wire Cat5e Cable

To terminate a Cat5e cable, you should prepare the cable. Here recommend a set of network installation tool kit which contains all you need to wire a category cable.

network installation tool kit

The following shows process of Ethernet cable termination:

cat5e wiring

Step 1, cut the cable to proper length and use wire stripper to remove the outer jacket.

Step 2, untwist wires and trim the excess part. Flatten the wires out as much as possible, because they need to be very straight for proper insertion into the connector.

Step 3, hold the cable ends and place the wires in orders from left to right according to T568A or T568B wire scheme.

Step 4, insert the wires into RJ45 connector. The wires must be sequenced in the same order of step 3.

Step 5, use crimping tool to squeeze the plug. This ensures the firm connection between the cable and the plug.

Step 6, repeat the process on the opposite end and test the terminated cable to make sure communications between cable ends and the network is correct.

Cat5e Solution

The Cat5e has great advantages in various applications and there are many related products, like Cat5e patch cable, Cat5e bulk cable, Cat5e patch panel provided in the market. Kindly contact for more details about Cat5e products, if you are interested.

What Is Copper Trunk Cable and How to Use It?

High density cabling products and standard modular designs are playing important roles in today’s data centers and server rooms. This is also happening for copper cabling. During the process of copper cabling, traditionally, cable installers might choose to terminate category cables by themselves. However, this would lower the installation speed. In addition, the field-terminated copper cables like Cat5, Cat5a and Cat6 can cause faults if not being terminated correctly. As there might be hundreds or thousands of RJ45 connectors to be terminated with twisted copper cables, faults and material wastes are likely to occur. To decrease the installation time and fault risk, pre-terminated copper trunk cables are being introduced to data centers.

copper patch panel

What is Pre-Terminated Copper Trunk Cable?

The following picture shows the outlook of a commonly used pre-terminated copper trunk cable, a 6 jack to 6 jack Cat5e UTP PVC copper trunk. The copper trunk cable, in simple, is a bound of individual copper cables which are factory pre-terminated. Without additional termination, cable installers can direct install copper cables. As the cables are bounded together, there is no need to worry about cable mess.

6 jack to jack copper trunk cable

Various copper trunk cables are being provided for different requirements in practical applications. To select the proper copper trunk for your applications, there are three important factors to be considered. The first one is the copper cable type. Copper trunk cables using Cat5, Cat5e, Cat6 and Cat7 cables are all available in the market. The second factor is cable count. The most commonly used copper cables usually have 6 or 12 cables in one bound. Higher or lower cable counts are also available. The third one is the termination type of the breakout legs of the copper trunk cables. The breakout legs are usually terminated with RJ45 plugs or jacks, some copper trunk cables might leave on end or both ends unterminated for customers to DIY according to their practical applications. The following picture shows three most commonly used copper trunk cables: plug to plug copper trunk cable, jack to jack copper trunk cable and jack to plug copper trunk cable.

copper trunk cable

How to Use Copper Trunk Cables?

The using of copper trunk cables can effectively reduce the installation time and increase the work performance of the copper network. What’s more, they are able to provide easy-to-manage cabling environments if being properly used. How to make full used of pre-termianted copper trunk cables? During cabling, it is always the case that the backbone cable should be interconnected work cross-connected before it is connected to the target device. The following shows three situations which are commonly seen for copper cabling using copper trunk cables.

Two-connector Interconnect

In the first case (shown in the following picture), a 6 jack to 6 jack copper trunk cable is used to connect three servers to a switch. Copper patch panel is being used on each end of this connection. One is near the switch end and the other is near the server end. Copper patch cables are used to interconnect these devices.

copper cable interconnection
Three-connect Cross Connect

Cross connect is also very common in data center. The following picture shows a basic cabling structure of a three-connector cross connection. In this network, three RJ45 patch panel are being used. This structure is like the above mentioned two-connector interconnection. Just a cross connecting process is added at the switch end.

cross connection
Four-Connector Cross Connect

The following shows a more complex network structure, which is a commonly used four-connector cross connection. This type connection usually requires patch field which is usually cabinet. In this case, two copper trunk cables are working as permanent cables. Patch cords are used at these cabinet to connect the devices. Four patch panels are used. There is an individual cabinet for cross connection.

cross connection


With the help of pre-terminated copper trunk cables, the cabling of large data center or high density environment becomes easier and faster. It also simplifies cable management in data centers. Currently, there are a lot of vendors provided copper trunk cables. Some can also provide customized copper trunk cable according to your data center applications, which can reduce the waste of materials and help to build a more clean and neat cabling environment.


In the past decades, the telecommunication industry has changed a lot. A wide selection of transmission methods has been introduced. Fiber optic cables are widely used in today’s network. It seems that copper cables are out of fashion. However, there are still many advantages of using copper networks. Copper cables are stronger and easier to manage than fiber optic cables. The cost of copper cable is much lower than fiber optic cables. In addition, copper network is easier to build, which eliminating the process of I/O. Now, copper cables are able to support data rate of 1G, 10G, 40G and even 100G, among which 10G copper based network is most commonly deployed. Currently, there are two types of standards which are designed for 10G copper based network: 10GBASE-CR and 10GBASE-T. Which one should you choose if you want to build a 10G copper based network? This article offers the answer.


Comparison Between 10GBASE-CR and 10GBASE-T

Several significant factors should be considered during the selection between the 10GBASE-T and 10GBASE-CR, which area transmission distance, transmission media, module type and cost.

10GBASE-CR and 10GBASE-T Transmission Distance and Media

10GBASE-CR is invented before 10GBASE-T. 10GBASE-CR can support 10G data rate up to 10 meters over twinax copper cable. While 10GBASE-T can support a longer transmission up to 100 meters over Cat6a twisted copper pair.

10GBASE-CR and 10GBASE-T Transmission Interfaces

Small package form factors are adopted in both 10GBASE-CR and 10GBASE-T applications, to meet the requirement of high density. SFP+ form factor is most commonly used for 10GBASE-CR applications.

SFP+ passive direct attach cables and SFP+ active direct attach cables are usually used for 10GBASE-CR applications. The two SFP+ copper cables are terminated with a SFP+ module on each end. 10G SFP+ active direct attach twinax copper cable can reach a longer transmission distance than the passive one. The market now can provide a wide selection of SFP+ DACs for different types of switches and platform.

10G SFP+ copper cable

Network interface card with SFP+/XFP interfaces are often used for 10GBASE-T applications. Not all the vendors provide 10GBASE-T SFP+ modules. HP has provided a 10GBASE-T SFP+ module. However, compatibility of the modules is limited by the switch brand. This HP 10GBASE-T SFP+ module can only be used on HP switches. Thus, 10GBASE-T application is kind of limited for now.

10GBASE-CR and 10GBASE-T Cabling Cost

Put transmission distance aside, the cost for 10GBASE-CR cabling is much lower for 10GBASE-T cabling. For instance, a HP 10GBASE-T SFP+ costs around $ 1000 USD. However, the price for a 10G HP SFP+ DAC is around $100 USD. This price is lower to $ 23 for a 1.2 meter HP JD096C compatible passive SFP+ DAC in FS.COM. Thus, 10GBASE-CR cost less than 10GBASE-T in general.


Generally, 10GBASE-T has the greatest advantages on transmission distances (up to 100m over Cat6a). Although, 10GBASE-CR can only reach up to 15 meters over twinax copper cable. It has great advantages on cable costs. In addition, most of our data center use for copper cabling are less than 15 meters, which means 10GABSE-CR can satisfy most requirement for copper cabling in data centers. Thus, 10GABSE-CR is suggested for most 10G copper cabling cases.

Build a Copper Network at Home

Broadband is becoming more and more important to our daily life. The Fiber to the Home (FTTH) is being widely deployed. Broadband provided by fiber optic cables is very common. However, most of our home devices are still having electrical interfaces like RJ45 interfaces. In addition, the copper network cable and technologies are keeping developing to satisfy the requirements of high data rate broadband. Thus, many people still have confidence in copper based network and would like to deploy a copper based network at home which is more cost-effective and easier to manage.

home networking

Factors to Consider Before Copper Home Network Deployment

To build a copper network at home is easier than that of a fiber optic based home network. But there are still a lot of things need to be considered. Before deploy the copper home network, you should firstly understand what you want from this copper home network. Of course, easier access to broadband and WiFi at everywhere are the most basic requirements. You should also decide the port number and expectation of the network performance, which will directly the decide product selection or cost of your network.

Three Steps to Build A Copper Home Network

There are mainly three steps to build a copper home network which will be introduced in the following part of this post.

distribution cable
Step One: Introduce Service Provider Distribution Cable to Your Home

Now most of the broadband service provider will install a distribution point near or inside a building. As shown in the above picture, copper network cables or fiber optic cables are deployed inside a building to bring services to every houses inside this building. For some old buildings, the cables between the end users and distribution point are still copper based. For many new buildings, these cables are usually fiber optic based. Just add an ONU (Optical Network Unit), you can change these optical signals into electrical signals and distribute signals to different ports and home devices. If your apartment is a small one, you can just use one ONU or router in the whole home network.

There are a variety of ONUs and routers which can support WiFi and satisfy various port requirements. For example, the following picture shows the application of a typical ONU (4FE+2POTS+WiFi) that can meet the requirement of most apartments. This ONU has a SC optical interface to be connected with the service provider’s entry fiber optic cable. Except two voice ports and four LAN ports, this ONU provides WiFi function.

Step Two: Wiring the Whole House

Wiring the whole house is very important for a home network with good broadband access. It is known that most home devices have better performance via a wired connection compared with being connected to WiFi. So during this process, you should device the port number you should leave in your house and how many devices should be connected to the network. Now there are a variety of home devices can be connected to a home network for better and smarter performance, which is also called smart home. Devices like air condition, light control and televisions can all be connected to the home network. Thus, copper network cable for signal transmission should have good and reliable performance. Cat6 and Cat7, two types of high performance Category copper cable, which can meet the requirement for both now and future, are strongly recommended.

home networking

The above picture shows the copper cabling for an apartment. The bedroom, living room, office and dining room of this house is all connected to broadband via copper network cable. In addition, each room is connected to voice cable ensuring that the house owner would not miss phone calls in most part of the house.

Step Three: Terminate Copper Cables and Connect Them to Home Devices

For the sake of security and reliability, the copper network cables should be terminated at wall plate ports. And a length of RJ45 copper network patch cable should be used to connect the port with target device as shown in the following picture.

copper home networking

FS.COM Copper Networking Solutions

Good access home network should combine the wired connection with WiFi connection. Right products can provide high performances. The above mentioned copper home networking products are all being provided in FS.COM. Copper networking products for data center are also available in FS.COM. Kindly contact for more details, if you are interested.