Chapter 22 - Building TelCom Systems Flashcards
The transmission, emission, or reception of signs, signals, writing, images, sounds, or information of any nature by wire, radio, optical, or other electromagnetic systems.
Telecommunication
It uses electricity, light (visible and infrared), or radio waves to transmit signals that carry voice and data transmissions.
Telecommunication system
Telecommunication systems function when a _______ converts sound waves or data into signals, which travel along wires or through the air before reaching their destination.
Transmitter
When a ______ intercepts the signals, they are converted back into useful data or sound waves that become distinguishable by the human ear and recognized by brain.
Receiver
A telecommunications device that functions as a transmitter and receiver
Transceiver
It is the conversion of useful sound or data into electrical impulses. It is capable of transmitting both voice and nonvoice messages.
Analog Transmission
A transmission of a signal that varies in voltage to represent one of two separate states
Digital Transmission
A collection of communication equipment and devices that are interconnected so they can communicate in order to share data, hardware, and software or perform an electronic function
Telecommunications network
The network includes a series of connecting points called _______.
nodes
It describes the configuration of a network, including its nodes, connecting cables and equipment. It describes the manner in which the cable is run to individual workstations on the network.
Topology
It connects each workstation (node) to a single cable trunk. All signals are broadcast to all workstations.
Bus topology
Topology where all workstations (nodes) are connected to a central unit called a hub.
star topology
A network that is wired in the _______ connects workstation equipment and devices in a point to-point serial manner in an unbroken circular configuration
ring topology
The most common medium through which voice and data usually move from one network device to another.
cable
Devices that connect cable to the network device
connectors
Historically, this material has been the principal telecommunications transmission medium. It consists of one or more pairs of solid copper wires.
copper
It has two conductors: an inner solid wire surrounded by an outer braided metal sheath.
Coaxial cable
Thin coaxial cable is also referred to as _____.
thinnet
Thick coaxial cable is referred to as _____.
thicknet
It is a type of coax cable with an additional outer copper braid insulated from signal carrying conductors
Triax cable
A type of communication transmission cable consisting of two center conductors surrounded by an insulating spacer
Twin axial cable (Twinax)
These are long, thin strands of very pure silicon glass or plastic about the diameter of a human hair.
Optical fibers
The thin glass center of an optic fiber where the light travels
core
The outer material surrounding the optic fiber core that reflects the light back into the core.
cladding
A plastic coating that protects the fiber from damage and moisture.
buffer coating
It refers to the technology in which communication signals in the form of modulated light beams are transmitted over a glass fiber transmission medium.
Fiber optics
A term used to describe telecommunications in which electromagnetic waves (instead of some form of wire) carry the signal.
Wireless
A wireless network consists of a number of computers, each equipped with a wireless networking interface card. Each computer can communicate directly with all of the other wireless-enabled computers and equipment (e.g., printers).
Peer-to-peer
An _____________ wireless network has a computer or receiver that serves as the point at which the network is accessed. It acts like a hub, which provides connectivity for the wireless equipment.
Access point or base station
Wi-Fi is derived from the term ______.
wireless fidelity
