![Class Note (05)
Topic : Network Cable Type & Specification
(khadija Akter Pretty)
(Id: 173462520)
Three major types of Network cables:
1) Fiber Optic Cable
2) Twisted Pair Cable
3) Coxial Cable .
Fiber Optic cable:
A fiber-optic cable, also known as an optical-fiber cable, is an assembly similar to an electrical
cable, but containing one or more optical fibers that are used to carry light. The optical fiber
elements are typically individually coated with plastic layers and contained in a protective tube
suitable for the environment where the cable is used. Different types of cable[1] are used for
different applications, for example, long distance telecommunication, or providing a high-speed
data connection between different parts of a building.
Fiber optic cables are used for lighting and imaging and as sensors to measure and Monitor a
vast array of variables. Fiber optic cables are also used in research and development and testing
across all the above mentioned industries.
Types of Fibre
There are two primary types of fibre – multimode and singlemode.
Multimode fibre can carry multiple light rays (modes) at the same time by having varying
optical properties at the core; essentially light travelling the shortest path (down the middle)
travels the slowest.The larger core simplifies connections and takes advantage of the lower cost
LED & VCSEL technologies which operate in the 850nm window. Due to dispersion the range is
limited so it tends to be used as premises cabling when less than a kilometre. It comes in two
core sizes, 62.5 and 50 microns.
Singlemode fibre has a much smaller core size of 9 microns and has a single light path and can
travel much longer distances of up to 100km. These require more expensive electronics which](https://image.slidesharecdn.com/classnote5-210603151512/85/Class-note-5-1-320.jpg)
Class note 5
- 1. Class Note (05) Topic : Network Cable Type & Specification (khadija Akter Pretty) (Id: 173462520) Three major types of Network cables: 1) Fiber Optic Cable 2) Twisted Pair Cable 3) Coxial Cable . Fiber Optic cable: A fiber-optic cable, also known as an optical-fiber cable, is an assembly similar to an electrical cable, but containing one or more optical fibers that are used to carry light. The optical fiber elements are typically individually coated with plastic layers and contained in a protective tube suitable for the environment where the cable is used. Different types of cable[1] are used for different applications, for example, long distance telecommunication, or providing a high-speed data connection between different parts of a building. Fiber optic cables are used for lighting and imaging and as sensors to measure and Monitor a vast array of variables. Fiber optic cables are also used in research and development and testing across all the above mentioned industries. Types of Fibre There are two primary types of fibre – multimode and singlemode. Multimode fibre can carry multiple light rays (modes) at the same time by having varying optical properties at the core; essentially light travelling the shortest path (down the middle) travels the slowest.The larger core simplifies connections and takes advantage of the lower cost LED & VCSEL technologies which operate in the 850nm window. Due to dispersion the range is limited so it tends to be used as premises cabling when less than a kilometre. It comes in two core sizes, 62.5 and 50 microns. Singlemode fibre has a much smaller core size of 9 microns and has a single light path and can travel much longer distances of up to 100km. These require more expensive electronics which
- 2. operate in the 1310 and 1550nm windows and are typically used in longer distance LAN’s, Cable TV and telephony applications. Twisted Pair Cable Twisted-pair cable is a type of cabling that is used for telephone communications and most modern Ethernet networks. A pair of wires forms a circuit that can transmit data. The pairs are twisted to provide protection against crosstalk, the noise generated by adjacent pairs There are two types of twisted pair cables 1) Unshielded Twisted Pair ( UTP ) 2) Shielded Twisted Pair ( STP ). Unshielded Twisted Pair (UTP) Unshielded Twisted Pair or UTP are twisted pair cables and are used to transmit both data and voice as their frequency range is suitable for transmission. UTPs are more cost effective and are not needed to be grounded. Shielded Twisted Pair (STP) Shielded Twisted Pair or STP are also a twisted pair cables but are required to be grounded, wants more maintenance, have high data trasmission capacity and are more costly then UTP. Following are some of the important differences between Unshielded Twisted Pair (UTP) and Abstract Classes in Scala.
- 3. Sr. No. Key Unshielded Twisted Pair (UTP) Shielded Twisted Pair (STP) 1 Full for UTP stands for Unshielded Twisted Pair. STP stands for Shielded Twisted Pair. 2 Grounding Grounding cable in not required. Grounding cable is required. 3 Data Transmission Rate Data Transmission Rate is slower than STP. Data Transmission Rate is very high. 4 Cost UTP cables are cheaper. STP cables are expensive. 5 Maintenance Low maintenance cost in case of UTP. High maintenance cost in case of STP. 6 Noise Noise is high in UTP. Noise is quite less in STP. 7 Crosstalk Possibility of crosstalk is very high in UTP. Possibility of crosstalk is quiet low in STP. Coaxial Cable: Coaxial cable is used as a transmission line for radio frequency signals. Its applications include feedlines connecting radio transmitters and receivers to their antennas, computer network (e.g., Ethernet) connections, digital audio (S/PDIF), and distribution of cable television signals. Coaxial cable is a type of transmission line, used to carry high-frequency electrical signals with low losses. It is used in such applications as telephone trunklines, broadband internet networking cables, high-speed computer data busses, cable television signals, and connecting radio transmitters and receivers to their antennas. It differs from other shielded cables because the dimensions of the cable and connectors are controlled to give a precise, constant conductor spacing, which is needed for it to function efficiently as a transmission line.