Utp cross link patch

Later a version using the thinner RG Ohm coax was introduced. Eventually several different standards emerged which used twisted-pair cabling. The "twisted pair" means that, no matter how many conductors there are in the cable, they are arranged in pairs for example orange and white-with-orange-stripe, green and white-with-green-stripe, etc.

The twist is important for properly carrying electrical signals down the wires, for several reasons. This produces less signal distortion, especially at higher frequencies. The wires act like antennas, so they send and receive electro-magnetic waves; if two wires are next to each other, a signal on one will be picked up by the other. The twist reduces this. As the name implies, STP adds a conductive layer typically metal foil surrounding either each pair or the entire cable.

This shielding helps reduce interference from electrical sources outside the cable. If the individual paris are shielded, this also reduces crosstalk.

Look at the cable connecting your telephone to the wall. Assuming this is a conventional analog system like you would find at home not a digital PBX or VoIP , all the conductors are parallel, rather than arranged in twisted pairs.

For carrying a single voice signal, this is fine. But if you have many signals in the same cable as in the thick cables that serve an entire office , you would hear other people's conversations if these cables did not use twisted pairs. So, those thick cables always use twisted pairs. Look again at that phone cord. If you hold the two male connectors next to each other, facing the same way, you will see that the colors of the wires are in a different order.

In fact, according to the spec for phone cords, they are always supposed to be "crossover" cables. That is, whatever color wire is all the way to the left at one end of the cable, must be all the way to the right at the other end, and so on. OK, what about TP Ethernet cables? First off, the standard cables are all "straight-through. But you cannot just connect all the wires straight-through; you have to pair them properly on the eight pins.

The TP Ethernet standard says that the two pins closest to the center of the connector must be attached to the same twisted pair of wires. The next two farther out must connect to another pair. The others are different; the two all the way to the left are a pair, and the two all the way to the right are a pair. And the computers, switches, and other equipment have their female jacks wired to take this into the account.

Note: they do make crossover Ethernet cables, which are used to connect, for example, two Ethernet switches together. If you look at one of these, you will see that the wire colors at the two ends are neither the same nor mirror-images of each other. Instead, they cross over so that the signals traveling along the cable in each of the two directions arrive at the right pins. However, many modern switches can sense what is at the other end, and the type of cable, and compensate for it. One more thing: One of the differences between, say, a Cat 5 cable and a Cat 6 cable is that the Cat 6 twists more often and requires that the twist be maintained closer to the connector.

This is one of the reasons it can handle the higher data rate. What is the result of all this? If you tried to use an Ethernet cable to carry a telephone signal, it might work. But if you tried to use a telephone cable to carry an Ethernet signal, it wouldn't work.

So what about STP vs. While both can be used for Ethernet, UTP is much more commonly used, especially for new installations. The lack of shielding makes UTP less expensive and more flexible than STP, and the superior interference rejection of STP is usually not needed for acceptable performance.

If you go to a computer store, you are much more likely to see UTP than STP, both in bulk cable such as that intended to be installed inside a wall and in patch cables which are sold with the connectors already attached. Ethernet cabling, lastly, may now be classified as "UTP for Ethernet" as the standards for 10Gbps Ethernet and higher have more demands for quality versus distance than previous Ethernet speeds read: 10Mbps.

Four twisted pair cable is often used for Ethernet applications but can be used for other data, voice, or audio applications. From a optical technician's point, poeple are likely to call those fibers that can be used in Ethernet Network as Ethernet cable, such as UTP cable, Fiber or coax. STP should be favored because it reduces the chances of interfering with other cables and is protected. UTP can be used, although its better indoor since it has no protection and is cheaper. But simply put they are practically the same, its just that one is shielded and the other isnt.

Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. What's the difference between an Ethernet cable and a UTP cable? Ask Question. Asked 7 years, 4 months ago. Active today. Viewed k times. From wikipedia UTP cables are found in many Ethernet networks and telephone systems.

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If someone has provided an answer that resolves your question, please consider marking it as the accepted answer. This will reward both the person who provided the answer and yourself with additional reputation. Voice UTP cables only needed to carry analog signals which are very robust and not easily corrupted by electrical noise or EMI. However, as UTP cables were used for different systems, higher quality UTP cables were required to support data systems that used digital signaling.

As the applications evolved, different categories or grades of UTP cables were created along these years. The following table shows different Category UTP cables, their business applications and corresponding performance specification.

Cat 1 cable is used in earlier times. It is used for typically voice networks that carries only voice traffic example telephones. It is the first cable which can transmit voice and data up to 4mbps. Horizontal UTP cable is four-pair construction by industry cabling standard. Each pair has two conductors. One wire of the pair is assigned the pair color with a white stripe and the other wire is assigned the color white with the pair color stripe. The table below lists the pair and color code for a four-pair horizontal UTP cable.

UTP backbone cables are large, multi-pair cables. These cables are constructed of pair binder groups. Each binder group is individually color coded and each pair within a pair binder group is individually color coded. The pair binder group is organized into five groups and there are five pairs in each group.

The five color groups in a pair binder are. Within each color group, the five pairs are designated with the group color code and the pair color code. The pair color code for each of the five pairs with a color coded group are.

Multi-pair UTP cables that have more than 25 pairs organize the pair binder groups in color-coded groups using the same color-coding sequence. This is shown in the following table. Four-pair UTP horizontal cables are terminated with an 8-position modular connector in the work area as shown below.

RJ45 jacks are engineered to maintain specific Category 5, 5e, 6, or 6A performance, and therefore must match the category of the cable they are terminating. These assignments define the pinout, or order of connections, for wires in 8P8C eight-pin modular connector plugs and sockets.

In UTP cable, each pair is represented by a specific color. In each pair, one wire is a solid color, and the other is predominantly white with a color stripe.