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FIBRE
OPTIC TRAINERS |
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8. ADVANCE FIBRE OPTIC COMMUNICATION TRAINER (VOFT-06) |
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This
communication system has excellent performance and cost
advantage over Wire and RF based communication system. The
knowledge of fiber optic communication system thus becomes
more important. This trainer is designed to learn the fiber
optic communication technique. It is used demonstrate Analog
and digital signal transmission techniques, TDM technique,
Data coding & Decoding and PC-PC communication by serial
method. |
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Features: |
Onboard programmable odd/even marker generator
Onboard programmable data generator
Mimic diagram
All relevant test points provided on board
On-board voice link
Analog and Digital Transmitter & Receiver
Expansion Channel
Reset Switch
Telephone hand set
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Specification:
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Transmitter
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12-channel TDM system
8 bit data programmable
1.536 Mbps data rate for Manchester coding
8 Expansion channels
2 telephone handsets
Odd/even marker for synchronization(8 bit programmable)
Digital transmitter wavelength : 660nm
Analog transmitter wavelength : 950nm
Modulation : Intensity Modulation
Analog Bandwidth: 150 KHz
Digital Bandwidth: 2 MHz
Optical output connector : self locking cap & Screw type
Coding technique : Manchester coding
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| Receiver: |
Receiver type : AC Coupled
Diode type : PIN photo diode
Diode wave length: 660nm - 950nm
Optical input connector: Screw type
Decoding technique : Manchester decoding
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| Power
Supply: |
Supply Voltage : 5V, GND
Supply current :500mA (Approx)
Interface connector:BNC
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| Communicating
Media: |
Fiber cable: 1000micron plastic step index, multimode PMMA fiber.
Core refractive index : 1.492
Cladding refractive index: 1.406
Numerical aperture: 0.5
Acceptance angle: 60 deg.
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| Accessories
Included: |
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1m & 3m Fiber Cable – Each 1 No. |
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RS 232 Cable – 2 Nos. |
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WinXtalk Software |
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NA Setup |
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Mandrel |
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Coupling setup |
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EMI setup |
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Detailed Experimental Documentation |
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Experiments: |
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To study the Analog and Digital signal transmission & reception
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Study of TDM
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To study the Manchester coding & decoding
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To study the Marker
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To study the PC-to-PC Communication link using fiber optic cable (simplex)
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To study the framing in TDM
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To study the fiber loss
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To study the voice coding & decoding
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To study the Bending loss
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To study the Numerical aperture
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Effect of Electro Magnetic Interference on fiber
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To study the coupling loss
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