Unit 7 Exercise 1
Baldeo Persaud
NT1310
Unit 7 Exercise 1: Fiber Optics- Definitions
1. Crosstalk – The coupling or transfer of unwanted signals from one pair within a cable to another pair. Crosstalk can be measured at the same (near) end or far end with respect to the signal source. Crosstalk is considered noise or interference and is expressed in decibels.
2. Waveguides – A structure that guides electromagnetic waves along their length. The core fiber in an optical-fiber cable is an optical waveguide.
3. FTTH – (fiber-to-the-home): Fiber reaches the boundary of the living space, such as a box on the outside wall of a home. Passive optical networks and point-to-point Ethernet are architectures that deliver triple-play services over FTTH networks directly from an operator's central office.
4. Simplex – A link that can only carry a signal in one direction. A fiber-optic cable or cord carrying a single fiber. Simplex cordage is mainly used for patch cords and temporary installations.
5. Half-Duplex – A system in which signals may be sent in two directions, but not at the same time. In a half-duplex system, one end of the link must finish transmitting before the other end may begin.
6. Full-Duplex – A system in which signals may be transmitted in two directions at the same time.
7. Photodiode – A component that converts light energy into electrical energy. The photodiode is used as the receiving end of a fiber-optic link.
8. Amplitude Modulation – A method of signal transmission in which the amplitude of the carrier is varied in accordance with the signal. With respect to optical fiber cabling, the modulation is done by varying the amplitude of a light wave, common in analog/RF applications.
9. Analog Transmission – A signal that varies continuously through time in response to an input. A mercury thermometer, which gives a variable range of temperature readings, is an example of an analog instrument. Analog electrical signals are measured in Hertz (Hz). Analog is the opposite of
NT1310
Unit 7 Exercise 1: Fiber Optics- Definitions
1. Crosstalk – The coupling or transfer of unwanted signals from one pair within a cable to another pair. Crosstalk can be measured at the same (near) end or far end with respect to the signal source. Crosstalk is considered noise or interference and is expressed in decibels.
2. Waveguides – A structure that guides electromagnetic waves along their length. The core fiber in an optical-fiber cable is an optical waveguide.
3. FTTH – (fiber-to-the-home): Fiber reaches the boundary of the living space, such as a box on the outside wall of a home. Passive optical networks and point-to-point Ethernet are architectures that deliver triple-play services over FTTH networks directly from an operator's central office.
4. Simplex – A link that can only carry a signal in one direction. A fiber-optic cable or cord carrying a single fiber. Simplex cordage is mainly used for patch cords and temporary installations.
5. Half-Duplex – A system in which signals may be sent in two directions, but not at the same time. In a half-duplex system, one end of the link must finish transmitting before the other end may begin.
6. Full-Duplex – A system in which signals may be transmitted in two directions at the same time.
7. Photodiode – A component that converts light energy into electrical energy. The photodiode is used as the receiving end of a fiber-optic link.
8. Amplitude Modulation – A method of signal transmission in which the amplitude of the carrier is varied in accordance with the signal. With respect to optical fiber cabling, the modulation is done by varying the amplitude of a light wave, common in analog/RF applications.
9. Analog Transmission – A signal that varies continuously through time in response to an input. A mercury thermometer, which gives a variable range of temperature readings, is an example of an analog instrument. Analog electrical signals are measured in Hertz (Hz). Analog is the opposite of