Straight type crimp – suitable for Internet cable or network patchcord, with which you can connect your computer to the router. It is called straight because both ends are crimped the same way. Since, one end is already connected in the box of your ISP, we only need to do this procedure 1 time. If you need to connect the PC to the router, then the second end is crimped exactly the same way as the first – that's why this type is called "direct".
How to Crimp an 8 or 4-Wire Twisted Pair – RJ-45 Internet Cable for Router and Computer
Let's talk about how to crimp a twisted pair cable for a computer or router. In simple terms, how to crimp an 8 or 4 core RJ-45 network cable for internet connection to a plug. Although high-speed fiber-optic networks are becoming increasingly common today, Ethernet cables with copper or copper-coated aluminum conductors are very common. It is also used to connect router, computer, TV, laptop and other devices. In this article I want to share the pinout diagrams with colors and experience with the tool – pliers or crimper.
The skill of crimping twisted pair is useful not only for communication engineers, but also for anyone who deals with network equipment of any category. For example, if the ISP's Internet cable connector is loose as a result of repeated connections, or to connect a new computer to a router. Surely many people have experienced a situation where the cable "plug" became muddy or broke during use (especially often the plastic latch), as a result of which the contacts came loose and the Internet did not work properly.
Tools for crimping twisted pairs of 8 (4) cores with an RJ-45 connector
It is easy to fix – you need to re-crimp the network cable with an RJ-45 connector.
- The actual cable from the Internet (Ethernet) – twisted pair. In practice, massively used wire with a cross section of 0.52 mm.
- Several connectors RJ-45 to connect to the router (you need one, and the rest are in stock)
- Crimping pliers, or crimper, a special tool that can be purchased at any flea market
Crimps on sale
So, in order to restore the functionality of the cable for 8 or 4 wires, you need to buy in the store:
- First, a set of connectors. They are usually sold in bulk in a package of 10-20 pieces, so there is enough to spare. They are inexpensive, so you will not go broke.
- Second, you need to have special crimping pliers. Many people try to crimp wires without a tool. However, you won't get a good job, and you'll waste a lot more time. Their price is not as low as connectors, but it's worth it. You will save time and nerves.
LAN – what is it
What does the abbreviation LAN mean – from the English "Local Area Networks" can be translated as "Local Area Network". Its peculiarity – it combines nodes that are close to each other. For example, it is a home, office or university network. What this means – that LAN is used to connect PCs directly.
To set up a remote network connection, special gadgets are used – switches and hubs. These are devices that have special connectors. Additionally, if you connect a router, such a network can be used to access the Internet.
What are the differences
What is the WAN on the router – this is the connector through which the Internet is connected. What is LAN – a port designed to form a "LAN". Knowing the terminology is not enough, so let's look at the features of these technologies:
- Purpose. VAN, in fact, is several local grids, including individual computers, no matter where they are located. Users simply connect and use the Internet with a number of limitations (usually the connection speed). The Internet, though well-known, is not the only WAN. A LAN is a "local area network," that is, an internal network that includes several devices located nearby. Wired or wireless technologies are used to connect them. In simple terms, a wire from the Internet provider is plugged into the WAN on the router, and "home" gadgets are connected through the LAN.
- Size. LAN covers an area of several kilometers, and its participants are connected by a cable with a high bandwidth. As a rule, such networks are created in a "central" object or a group of houses located nearby. WAN, on the other hand, has no territorial limits. But it is still connected using cable lines.
- Available services. From the "local area" you have access to printer management, file management. Routing services, VPN and others are available for the global network.
- Data transfer speed. It is faster on the LAN than on the Internet. Here, the limitations of the providers or the connector itself apply. For example, the LAN speed reaches 1000 mbps, while the WAN speed is up to 100 mbps.
The WAN port on the router is usually blue. The word "Internet" is often found next to it. To access the World Wide Web, it's not enough to plug a cord into the appropriate slot. You'll also need to set up the VAN – to enter the data sent by your ISP.
Pigtails
As mentioned above, pigtails are needed to connect router connectors, coaxial cables to modem connectors.
They look like this:
In the example on the left the F-female to CRC9 pigtail, on the right the SMA-female to U.Fl
Choice of pigtail
Let's take an example, when we select the antenna for some modem (or router) with unknown type of connector. Let it be a modem Beeline ZTE MF831, connected to a laptop and a parabolic antenna KNA24-1700/2700.
From the antenna to the modem will be a distance of about six meters.
Task: Choose the right connector on the antenna, cables, and pigtails.
The KNA24-1700/2700 antenna, as you can see on the website, allows you to choose whether the connector type is SMA-female or F-female.
As mentioned above, in most cases it is more practical to use 75 ohm cable with F-connectors.
Let's choose it.
For further connection we will need a cable assembly, i.e. a piece of wire crimped on both sides with connectors. You can make it yourself or buy ready-made. We offer ready-made cable assemblies RG-6U 75 ohm F(male)-F(male) in lengths of 5 and 10 meters (art. 425 and 427).
Since. we have a distance of about six meters from the antenna to the modem, then we take two cable assemblies length of 10 meters.
Why two?
The antenna supports MIMO technology, which means that it has two connectors for cable assemblies.
Also by looking at the documentation of the modem we will see that it also has two connectors for the external antenna, hence the antenna and the modem can work using MIMO.
This will increase the bandwidth which will have a positive impact on the internet speed.
Done. We have an antenna with two 10 meter cable assemblies terminated with F-male connectors.
Now it's up to the pigtail.
Since we don't know which sockets are on the modem, we will have to look at its documentation. On the request "ZTE MF831 antenna connectors" we will find out that it is TS-9.
That's great.
It means we need a pair of pigtails with an F-female connector at one end and TS-9 at the other to connect to the modem.
