Order Code - 28525 Fibre Optics Modulation/Demodulation Trainer  28525 is a single board Fibre Optics Modulation/Demodulation  Trainer Kit to study the characteristics of Fiber using Digital and  Analog techniques. This kit also facilitates with digital and analog  Modulation & Demodulation communication techniques. 

Features 

• Two Nos. Of Photo Detector. 
• On-board Sine & Square wave generator. 
• On-board 4th Order Low Pass Filer. 
• On-boad Fault Switch. 
• In-Built Power Supply. 

Specifications 

• Two Transmitter Fiber Optics LED having peak  wavelength of emission 660nm & 950nm. 
• Two Receiver Fiber Optic photodetector 
• On-board Analog & Digital Drivers. 
• On-board AC Amplifiers. 
• Analog Band Width 350 Khz. 
• Digital Band Width 2.5 Khz. 
• 4th order Butter worth 3.4KHz Low Pass Filter. 
• On-board 1Hz. To 10 KHz sine wave (amplitude adjustable), Square wave (NRZ-TTL 8 Bit) 
• FO voice link using microphone & speaker 
• RS-232C PC to PC Serial link using 9 Pin Dtype. 
• Four Switched Faults for transmitter & receiver. 
• Fiber Optics Cable Connector type Standard SMA . 
• Duly polished fiber at both end for Numerical Aperture Measurement. 
• Step indexed multimode PMMA plastic cable. 
• Core Refractive Index 1.492. 
• Clad Refractive Index 1.406. 
• Numerical aperture Better than 0.5. 
• Acceptance Angle Better than 60° 
• Fiber Diameter 1000 microns. 
• Outer Diameter 2.2mm. 
• Fiber Length 1m. 
• In-Built Power Supply 5V/1.5A, ±12V/250mA. 
• Interconnections 2 mm Banana Sockets 
• Attractive Wooden enclosures of Light weightAustralian Pine Wood. 
• User's Manual with set of Patch Chords. 
• 230mm x 140mm x 80mm (L x W x H) 
• Weight 3 Kgs.