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FIBRE
OPTIC TRAINERS |
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6. DIGITAL FIBER OPTIC
TRANSMITTER AND RECEIVER TRAINER (VOFT-04)
[Pulse Modulation &
Demodulation] |
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VOFT-04 provides all necessary inputs and connections for
students to study the different modulation/ demodulation and
digital transmission / reception by using fiber optic
communication link. |
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Features: |
On-board modulating signal generator
On-board transmitter & driver
Different types of modulator
Various test points
Onboard receiver
Inbuilt power supply
Mic pre amplifier
Power amplifier
Switched fault on Transmitter & Receiver
PC-PC Communication with RS232 ports
Crystal controlled clock
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Specification:
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Transmitter
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Modulating Signal
#Frequency: 1KHz
#Amplitude: 2Vpp
Modulation technique
#Pulse Width Modulation
#Pulse Position Modulation
#Pulse Code Modulation
Crystal controlled clock: 128 KHz
Coding technique: Manchester coding
Source wavelength: 660nm
Optical output connector : Self-locking cap
Supply voltage : 12V, 5V,GND
Supply current : 200mA (Approx)
Interface connector: 2mm socket, 9 pin D type connector
Fault creator:8 Dip Switch
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| Receiver: |
Diode type: PIN photo diode
Diode wavelength : 660nm-950nm
Optical input connector : Self-locking cap
Demodulation technique
#PWM Detector :Low pass filter
#PPM Detector :Low pass filter
#PCM Detector
Supply Voltage : 12V, 5V,GND
Supply Current :200mA (Approx)
Interface connector: 2mm socket, 9 pin D type connector
Fault creator :8 DIP switch
Clock recovery
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| Communicating
Media |
Fiber cable: 1000micron plastic multimode 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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RS 232 cable – 2Nos. |
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BNC-SP7 – 2Nos. |
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WIN X-talk software |
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1m Fiber cable |
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Detailed Experimental Documentation. |
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| Experiments: |
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To study the pulse signal transmission & reception by fiber optic media
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To study the PC-PC communication using fiber media (simplex)
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