Connectors and cabling
- Describe and identify the functions of the following:
- Leased line
- Dedicated line
- Media types e.g STP, Category 5, Coaxial, UTP, fibre optic
- Wireless
- Mobile technology
Leased Line
- It is a dedicated communication that connects two or more sites
- Service contract between customer and provide
- Acts as dedicated tunnel from one point to the others, data will flow continuously for a fixed monthly fee or rent
- Are used for internet, telephone services and data
- Run on fiber optic cables to provide large bandwidth
Dedicated Line
- In IT, this line is particular, fiber optic cable, twisted pair cable line, or other physical cable line, available anytime for a specific service
- Also known as non-switched lines
Media Types
Stp
- Shielded Twisted Pair
- Special kind of copper telephone wire used in some business installations
- An outer covering is added to the ordinary twisted pair telephone wires as a ground
Category 5
- It is a type of cable used in Ethernet connections in local networks, and telephone and other data transmission
- Employs a twisted pair design, instead of coaxial cable or fiber optic cable design
Coaxial Cable
- Looks similar to the cable that are used in TV signal
- Solid-core copper wire runs down the middle of the cable
- Around the solid-core copper wire is the later of insulation, and braided wire and metal foil is the cover of the insulation which is shield from electromagnetic interference
- Two types of coaxial cable is thinnet and thicknet
- Thinnet is a flexible coaxial cable that is about 1/4 inch thick. Used for short distance
- Thickent is thicker than thinnet and is about 1/2 inch thick and can support data transfer over long distance
UTP
- Unshielded Twisted Pair
- Most common type of network cabling
- Consist of four twisted pair of wire with different number of twists per foot, encased on one sheat
Fibre Optic
- Refers to the medium and technology associated with the transmission of information as light pulses along a glass strand
- Can contain varying number of glass fibers from few up to a couple hundred
- Surrounding the glass fiber core is another glass layer called cladding
- A layer known as buffer tube protects the cladding and a jacket layer acts as the final protective layer for the individual strand
Wireless
- Describe numerous communication technologies that rely on wireless signal to send data than using physical medium
- In wireless transmission, the medium used in the air through electromagnetic, radio and microwave signals
- The word communication refers also to the communication between devices and other technologies
Mobile Technology
- Can travel with its user or with a piece of equipment, providing data from any geographical location
- Can virtually connect any number of parties by hosting communication and collaboration through mobile devices
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