Patch cords (patch cords) takencall electrical or fiber optic cables that allow you to connect or connect electrical devices. The most common data products received in the design and creation of local area networks. To connect switches, connect workstations to network equipment, the patch cord 5e made by industrial or handicraft is often used here. Fiber patch cords are also in use.
Patch cord - what is it? How does it work?
To connect the disparate network components,need to use special cables. So, to connect a PC to a DSL router or switch, you will need to prepare a network patch cord. What it is? This is a segment of shielded or unshielded UTP cable from 1.5 m in length, on both sides of which RJ-45 connectors are fixed with a crimping tool.
TIA-568A and TIA-568B standards
There are standards for connecting such cables toother devices: TIA-568A and TIA-568B. How is the patch cord 5e used to connect network devices? Standards determine the order of the individual veins in colors within the connector. The fact is that inside the standard UTP cable under the insulating layer are twisted conductors. Here is the signal transmitted by them. An insulation layer covering such a conductor can have one of eight standard colors:
- Orange;
- white and orange;
- green;
- white-green;
- blue;
- white and blue;
- brown;
- white and brown.
В стандарте TIA-568A порядок отсчета начинается с white-green and green wires. In the TIA-568B variant, orange wires first go. Other differences in the sequence of the veins can be seen in the picture. Some network engineers when connecting connectors arbitrarily change the order of the conductors. This is not recommended. It is better to follow one of the standard schemes, so as not to get confused in the future.
What can connect patch cable?
Cable crimped on both sides is indispensable forsystem administrator. There are many devices that can be connected to the network using a patch cord. What are these devices? Their list is quite wide. Here are just the most popular options:
- line patch panels to a PC or laptop;
- computer to DSL modem;
- switch to a router or another switch;
- computer to the hub;
- DSL modem to a routing device or switch;
- Wireless switch access point with or without PoE technology.
If you use lc lc patch cord, then they usuallyThe switching and routing devices are interconnected. This type of cables is also used to connect switches and other network equipment to patch panels.
What are the modifications of patch cords
Despite the simplicity of the device, patch cableshave certain differences. So, they can be categorized as 5, 5e or 6. The figure explains which materials are used for this cable, which type of RJ-45 connectors uses a specific UTP patch cord. What does this mean in practice? Different UTP cables support different data rates. Some of them are capable of providing greater signal transmission distance.
Gigabit Ethernet support, UTP cable quality issue
There is a common misconception.buyers, which is that they must have a CAT 6 cable in order to receive a Gigabit signal in their network. This statement is true only if cheap wires of dubious origin are purchased. A good quality cable category 5e, manufactured to the proper standards, will have a gigabit signal. Its only disadvantage is that it has not been developed or certified for this. Therefore, the manufacturer does not guarantee that the cable category 5 will support Gigabit Ethernet.
Principal differences patch cords 5 and 6 categories
UTP 5th cables are commonly used in bulk.categories. They are cheap, simple and reliable. If these products are made with high quality, they will even hold a gigabit signal without any problems. But sometimes you can meet and patch cord 6 categories (about 3-5% of cases). What are the main differences of patch cord 5e? What is this magical wire used everywhere?
Какие секреты еще таит обычный патч-корд?What are the characteristics that make the product such a universal tool for building computer networks? The outer insulation layer protects single-wire copper strands twisted in pairs and having a diameter of 0.52 mm. Each conductor is covered with solid polyethylene. It protects the conductors from various interference and the ingress of water, oxidation. The UTP cable is highly flexible, which allows you to use the most unexpected routes for laying the network.
What is different cross-patch cord
Crossover network cables areA special type of mounting cords, which are used for the device SKS. Their feature is the cross-connection diagram of the connection of individual cores at the end directly with the connector. So, if on the one hand the TIA-568A model is used, on the other hand, the TIA-568B scheme is used.
