 |  |  | 5.3 Module 3 -- Networking Media |
5.3 Module 3 -- Networking Media
- Conductors, semiconductors, & insulators
- voltage, current, resistance, impedance
- circuit elements: resistors, capacitors, inductors, active devices
- Integrated circuit manufacturing
- cables types - coax, twisted pair, (& circuit traces).
- Ethernet cables
- Fiber optics. Total internal reflection (prism)
- Fiber optic polarization & magnetic fields
- Fiber core volume (single mode):
(4.5 ×10-6)2 ×pi×120 miles ×193121.28 meter/mile
.0000000000636172 ×120 miles ×193121.28 meter/mile
.001474 cubic meter OR 1474 cubic cm OR a cube 11 cm or 4.33 inches
on a side.
- multi-mode & single mode fibers.
- Light sources.
LED (Light Emitting Diode),
Lasers - semiconductor and other. Eye hazards.
- Erbium-Doped Fiber Amplifiers (EDFAs). (Wikipedia: Erbium-doped_fiber_amplifier)
- Frequency vs color.
- instrumentation
- voltmeter
- ohm meter (output voltage/four terminal)
- current meter
- multi-meter
- cable tester - continuity
- RADAR - RAdio Detection And Ranging. (palindrome)
- TDR - Time Domain Reflectometer
- OTDR - Optical Time Domain Reflectometer, Raleigh backscatter
- Pattern generator and error detector
- Oscilloscope
- Who does instrumentation
- radio waves -- attenuation reflection impedance mismatches
multi-path, polarization, dispersion. Antenna systems.
- Free space optical system. (Wikipedia: Free_Space_Optics) (Wikipedia: RONJA)
- Modulation (AM, FM. PM, MFM, RLL, RZ, NRZ, NRZI ...)
clock recovery.
- Spread spectrum (Wikipedia: Spread_spectrum)
- Security - Encryption, passwords, Bruce Schneier's Crypto-Gram.
http://www.schneier.com/crypto-gram.html
- Security - Matt Blaze
http://www.crypto.com/
- Summary - wired vs. fiber vs. radio (same rules & same problems)
Instructor: Louis Taber, louis.taber.at.pima at gmail dot com (520) 206-6850
My web site in Cleveland, OH
The Pima Community College web site
 |  |  | 5.3 Module 3 -- Networking Media |