Explain different kinds of network cables.


There are three main types of network cables:

  • Coaxial cable: This is the oldest type of network cable, and it consists of a single copper wire surrounded by an insulator, a braided metal shield, and an outer plastic jacket. Coaxial cable is still used in some applications, such as cable TV and satellite dishes, but it has been largely replaced by other types of cable for computer networks.

    Image of Coaxial cableOpens in a new window

  • Twisted-pair cable: This type of cable consists of two insulated copper wires that are twisted together. The twisting helps to cancel out electrical interference from other cables and devices. Twisted-pair cable is the most common type of network cable used today. It comes in two main varieties:

    • Unshielded twisted-pair (UTP): This is the most common type of twisted-pair cable. It is inexpensive and easy to install, but it is more susceptible to interference than shielded twisted-pair cable.
    • Shielded twisted-pair (STP): This type of cable has a metal foil or braid that surrounds the twisted pairs of wires. The shield helps to block interference, but it also makes the cable more expensive and difficult to install.
      Image of Twistedpair cableOpens in a new window

  • Fiber optic cable: This type of cable transmits data using pulses of light instead of electrical signals. Fiber optic cable is the fastest and most reliable type of network cable, but it is also the most expensive. It is typically used for long-distance connections, such as between buildings or cities.

    Image of Fiber optic cableOpens in a new window

The best type of network cable for a particular application will depend on a number of factors, such as the distance the cable needs to cover, the speed of the network, and the amount of interference that is present.

Here is a table that summarizes the different types of network cables:

Type of CableDescriptionAdvantagesDisadvantages
CoaxialSingle copper wire surrounded by an insulator, shield, and jacketInexpensive, easy to installSusceptible to interference, slow
Twisted-pair (UTP)Two insulated copper wires twisted togetherInexpensive, easy to install, widely availableSusceptible to interference
Twisted-pair (STP)Two insulated copper wires twisted together with a metal shieldMore resistant to interference than UTPMore expensive, more difficult to install
Fiber opticTransmits data using pulses of lightFastest, most reliable, long distanceMost expensive, difficult to install

Comments

Post a Comment

Popular posts from this blog

Simulation communication between two laptops in different network through a router

Image
      Step 1: Open Cisco Packet Tracer. Step 2: Once Cisco Packet Tracer opens, click Endpoints in the bottom left icon menu and add his 2 PCs and the router to the simulator screen. Step 3: Connect all PCs and hubs with straight copper cables by selecting Straight Copper Cables from the Cables menu in the bottom left menu of the simulator. A green signal in the cable indicates it is ready for communication. Step 4: Next, you need to assign a unique IP address to each PC. Click on each PC, go to the Desktop section, click IP Configuration and specify the IP address. IP Address Subnet Mask PC-1 = 192.168.1.1  subnet mask -- 255.255.255.0 PC-2 = 192.168.1.2 255.255.255.0 Router = ethernet 0 -- 192.168.1.1 ethernet 1--192.168.2.1
Read more

How to prepare RJ45 cables (straight-through and crossover) .

  Preparing RJ45 cables involves creating either straight-through or crossover cables, both commonly used in networking. Here are step-by-step instructions for each type: Materials Needed: RJ45 connectors (8P8C) Cat5e or Cat6 Ethernet cable Crimping tool Cable cutter/stripper Preparing a Straight-Through Cable: Steps: Cut the Cable: Use a cable cutter to cut the desired length of Cat5e or Cat6 cable. Strip the Insulation: Use a cable stripper to remove about 1.5 inches (3-4 cm) of the outer insulation to expose the twisted pairs. Organize the Wires: Untwist and organize the color-coded pairs following the T568B or T568A wiring standard. Both ends of the cable should use the same standard. T568B Color Code (most common): Copy code 1. White / Orange 2. Orange 3. White / Green 4. Blue 5. White / Blue 6. Green 7. White / Brown 8. Brown T568A Color Code: Copy code 1. White / Green 2. Green 3. White / Orange 4. Blue 5. White / Blue 6. Orange 7. White / Brown ...
Read more