FUNDAMENTALS OF TELECOMMUNICATIONS SYSTEMS Flashcards
____________ is the ___________, __________, or ___________ of signs, signals, writing, images, sounds, or information of any nature by wire, radio, optical, or other ______________ systems.
Telecommunication, transmission, emission, reception, electromagnetic
TELECOMMUNICATION SYSTEM uses ________, _______ (visible and infrared), or _______ waves to transmit signals that carry _____ and ______ transmissions.
electricity, light, radio , voice , data
TELECOMMUNICATION SYSTEM functions when a __________ converts sound waves (e.g., those created when a person speaks into a telephone mouthpiece) or data into ______, which travel along wires or through the air before reaching their destination.
transmitter, signals,
When a _______ intercepts the signals, they are
converted back into useful data or ______ waves that
become distinguishable by the human ear and
recognized by brain.
receiver, sound
Is a telecommunications device that functions as a
transmitter and receiver.
Transceiver
_________ is the range between the highest and lowest frequencies of transmission, measured in _______, cycles per second. _______ varies with the type and method of _________. It is a measure of the _________ capacity.
Bandwitdth, hertz, bandwidth, transmission, information
TRANSMISSION FORMATS
________________
-The conversion of useful sound or data into
electrical impulses.
Analog transmission
____________ involves a transmission of a signal that varies in _________ to represent one of two separate states (e.g., on and off or 0 and 1).
• Offers a rapid method of voice and nonvoice transmission.
Digital Transmission, voltage
In ______________, digital signaling in an ________ network, can involve either _______ (on and off) light or a variation in the intensity of the ______ signal.
digital transmission, optical, pulsating, light
Digital transmission over radio systems (microwave, cellular, or satellite) can be accomplished by varying the _________ of the wave.
amplitude
_________________ is a collection of communication equipment and devices that are ___________ so they can communicate in order to share data, hardware, and software or perform an electronic function.
Telecommunications network, interconnected
In telecommunications network, the network includes a series of connecting points called
________ (e.g., a telecommunication terminal such as a telephone receiver or computer) that are interconnected with ______ (wiring).
nodes, cables
Networks can also interconnect with other networks and contain subnetworks. ( T or F)
T
Describes the configuration of a network, including its nodes, connecting cables and equipment.
Topology
Describes the manner in which the cable is run to
individual workstations on the network.
Topology