Elenco Fiber Optics Voice and Data Kit Manual do Utilizador

FIBER OPTICS KITMODEL FO-30KAssembly and Instruction ManualCopyright © 2012, 1994 by ELENCO®All rights reserved. Revised 2012 REV-U 7

REFRACTION-9-Figure 2BRefractionRedOrangeYellowGreenBlueVioletRefractionWhite LightThe speed of light can be defined as the velocity ofelectromagnetic

REFLECTIONBefore trying to explain reflection, we must first define some important terms shown in Figure 2C.-10-Figure 2Cθ1θ2n1n2Reflected RayRefracte

SNELL’S LAW-11-Figure 2DFigure 2D-1 Figure 2D-2 Figure 2D-3θ2n1n2Critical AngleLight is bent away from normalLight does not entersecond materialAngle

OPTICAL FIBER CONSTRUCTION-12-8 The above paragraphs are reproduced by permission TECHNICIAN’S GUIDE TO FIBER OPTICS 2E (PAGES 40, 44)By Donald J S

HOW LIGHT TRAVELS THROUGH AN OPTICAL CABLESECTION C-13-Figure 2FLight is propagated bytotal internal reflectionn1n2CladdingCoreAngle of RefractionAngl

AN IMPORTANT UNIT IN FIBER OPTICS (THE DECIBEL)-14-10 The “DECIBEL” Section is reproduced by permission TECHNICIAN’S GUIDE TO FIBER OPTICS 2EBy Don

-15-Both ends of the optical cable are terminated in thesame way. Please follow the steps below.1) Use a razor blade (a very sharp knife will do) tocu

PARTS IDENTIFICATION-16-PARTS LISTIf you are a student, and any parts are missing or damaged, please see instructor or bookstore. If you purchasedthis

RECEIVERFigure 3A-17-There are 4 main components in the receiver (referto Figure 3). They are:a) Power Supply (9V battery)b) Phototransistor LPT80A (t

Q1 - Phototransistor(see Figure D)L1 - Lug (see Figure E)C3 - .047μF Mylar Cap. (473)R1 - 200Ω Pot (see Figure F)R3 - 10Ω 5% 1/4W Resistor(brown-black

INTRODUCTIONThe FO-30 kit, an optical voice link, will introduce you to the wonderful world of fiber optics. By building this kit,you will learn how f

-19-INSERT THE CABLETESTING PROCEDUREAnswers: (1) power supply, phototransistor, audio op-amp, speaker (2) light, electrical (3) intensity(4) 20 (5) C

Foil Side of Receiver PC BoardFoil Side of Transmitter PC Board-20-TROUBLESHOOTING GUIDEPROBLEM POSSIBLE CAUSEIF LED D1 DOES NOT LIGHT Check battery c

-21-GLOSSARY11ABSORPTION Loss of power in an optical fiber,resulting from conversion ofoptical power into heat andcaused principally by impurities,suc

-22-The course includes a 61 page manual and all of thematerial necessary to conduct nine stimulatingexperiments related to fiber optic communications

ELENCO®150 Carpenter AvenueWheeling, IL 60090(847) 541-3800Website: www.elenco.come-mail: [email protected]

Qty. Description Part #r 1 PC Board 519015Ar 2 Switch 541103r 1 Microphone 568000r 1 Battery Holder 590096r 2 Screw 2-56 x 1/4” 641230r 2 Nut 2-56 644

-3-SCHEMATIC DIAGRAMTRANSMITTERThere are 5 main components in the transmitter(see Figure 1A). They are:a) Power supply (9V battery)b) Microphone (MIC)

-4-CONSTRUCTIONSolderSoldering IronFoilSolderSoldering IronFoilComponent LeadSoldering IronCircuit BoardFoilRosinSoldering iron positionedincorrectly.

Figure DElectrolytics have a polaritymarking indicating the (–) lead.The PC board is marked to showthe lead position.Warning: If the capacitor isconne

-6-TESTING PROCEDUREQUIZ 1Answers: 1. transmitter, fiber optic cable, receiver; 2. electrical, light; 3. light;4. light, electrical; 5. voice, electri

FIBER OPTICSFIBER OPTICS AND ITS ADVANTAGESSECTION A-7-The obvious questions concerning fiber optics arethese: Why go through all the trouble of conv

PRINCIPLES OF LIGHTWAVELENGTHSECTION BPlastic Optical CableCoreCladdingJacket-8-FIBER MATERIALThere are many materials that can be used to transmit li