UNIT 7 DEFINITIONS
KENDAL JEFFERSON
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 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 yhe same time. In a half-duplex system, one end of the link must finish transmittin before the othet end may begin.
6. FULL-DUPLEX: A system in which signals may be transmitted in two directions at the same time.
7. PHOTODIODE:
8. AMPLITUDE MODULATION:
9. ANALOG TRANSMISSION:
10. DIGITAL TRANSMISSION:
11. SAMPLE RATE:
12. ELECTROMAGNETIC WAVE:
13. REFRACTION:
14. MEDIUM:
15. TOTAL INTERNAL REFLECTION:
16. FRESNEL REFLECTION:
17. TENSILE REFLECTION:
18. DESPERSION:
19. BANDWIDTH:
20. POLARITY:
21. ABSORPTION:
22. SCATTERING:
23. EQUILIBRIUM MODE DISTRIBUTION:
24. PERSONAL PROTECTIVE EQUIPMENT:
25. GOOD WORK HABITS: