2. What are the key technologies used in todayâs telecommunications networks? A. The increased use of the Internet, circuit switching, and fiber optics B. The increased use of smart phones, wi-fi, and metro Ethernet C. Metro Ethernet, wi-fi, and cloud computing D. Packet switching; voice, data, and video networks; and TCP/IP Correct!
Fiber Optic cabling is the other type of cabling solution we talked about. Fiber optics uses a glass or plastic core to transmit light between each connection. Because we are using light instead of an electrical current, fiber is immune electromagnetic to interference. Fiber is also able to send data at faster speeds and longer distances than copper cabling. Fiber is harder to work with and usually needs a specialized technician to install the connections.
EC2351 MEASUREMENTS AND INSTRUMENTATION L T P C 3 0 0 3 UNIT I BASIC MEASUREMENT CONCEPTS Measurement systems – Static and dynamic characteristics – units and standards of measurements – error :- accuracy and precision, types, statistical analysis – moving coil, moving iron meters – multimeters – Bridge measurements : – Maxwell, Hay, Schering, Anderson and Wien bridge. UNIT II BASIC ELECTRONIC MEASUREMENTS Electronic multimeters – Cathode ray oscilloscopes – block schematic – applications – special oscilloscopes :– delayed time base oscilloscopes, analog and digital storage oscilloscope, sampling oscilloscope – Q meters – Vector meters – RF voltage and power measurements – True RMS meters. UNIT III SIGNAL
Lydell Smith NT1310 Unit4 assignment 1 copper vs. fiber In this paper I will discussed two different cabling copper and fiber cabling. I will contrast both cabling types show strengths and there weaknesses, also what situations you would choose one over the other. Copper and fiber optic wiring are the two most common and widely used cabling types today for the means of communication all over the world. Both have the same basic concept to transmit information from point A to point B but both have their strengths and weaknesses and therefore, a person installing cabling may be reluctant to choose one over the other. Copper cabling is the less expensive of the two to install.
1. Describe the electromagnetic spectrum; make sure you discuss the patterns that occur with frequency and wavelength, as well as the different types of EM waves. Fiber optic data transmission systems send information over fiber by turning electronic signals into light. Light refers to more than the portion of the electromagnetic spectrum that is near to what is visible to the human eye. The electromagnetic spectrum is composed of visible and Near infrared light like that transmitted by fiber, and all other wavelengths used to transmit signals such as AM and FM radio and television.
Digital watermarking is the process of embedding information into a digital signal. The signal may be audio, pictures or video. The embedded information is known as a watermark that can be extracted or detected. A watermark may be a digital signal or pattern which
To start I would like to throw some light on some key words in the question, digital technology is a type of transfer that involves breaking a message or forms of communication between two machines down into binary codes, which consist of ones and zeros and can be reassembled upon been read by another piece of equipment that utilizes digital technology (Telecom. hellodirect.com, 2015). That is, digital technology uses digital codes to transmit signals and information between different devices, different from the older types of technology that uses other forms of information transfer and could not move data as quickly, for example the analogue devices in which information is transmitted by modulating a continuous transmission signal such as amplifying a signal’s strength or varying its frequency to add or take away data. (Bebopedia, 2015) In digital technology information is translated into binary format, where each bit is representative of two distinct amplitudes while analog technology translates information into electric pulses of varying amplitude. Despite these differences both technologies shear some common characteristics,
The coverage provided to a cell phone still relies on the device that is being used, how far from the tower the cellular device is and whether the cellular device user is indoors or outdoors. As mentioned before, the common misconception is that 4G technology is already being used and that confusion comes from service providers already including 4G compatible cell phones. What is currently being used is an enhanced version of the 3G technology that was originally introduced in 1998. In order for cell phone users to experience coverage without any fading regardless of location and mobility, mobile operators must first upgrade their networks and continually provide phones with faster processors until finally a full 4G quality of technology is fulfilled. The general reason why researchers and industries would like to switch to the all-IP is to provide more enhanced levels of user experience and a common platform for all the existing mobile technologies such as GSM, GPRS, IMT-2000, WiFi and
In the diagram a sine wave is sampled and quantized for PCM. The sine wave is sampled at regular intervals, shown as ticks on the x-axis. For, each sample, one of the available values is chosen by some algorithm. This produces fully discrete representation of the input signal that can be easily encoded as digital data for storage or manipulation. Next, in 1943 Bell Telephone Laboratories developed the first digital scrambled speech transmission, SIGSALY.