Specification: The optical fiber system trainer should consist of the following modules, Transmitter: Transmitted light wavelength: 660 nm and 820 nm , Data rate: 1 Mbps and Transmitter bandwidth: 1 MHz , Digital and analog transmitters with E/O conversion circuit , Built-in microphone input terminal and audio amplifier , Built-in sine wave output signal, tunable amplitude & frequency output , Amplitude: 2Vpp and Frequency: 100 Hz ~ 2.5 kHz , Built-in digital data generator, used to produce TTL signal and CMOS level output , Wavelength of optical fibers transmission line: 500 nm ~ 1200 nm, ST and DIN Connectors , Receiver: Received light wavelength: 660 nm and 820 nm , Data rate: 1 Mbps and Receiver bandwidth: 1 MHz , Digital and analog receivers with O/E conversion circuit , Provided with tunable amplifier, which can drive the 8 Ω loud ,speaker Wavelength of optical fibers transmission line: 500 nm ~ 1200 nm, ST and DIN Connectors, Data Communication: Transmission interface: RS-232 , Transmission Baud rate: 9600 bps , Type of display: LCD16×2 characters , Ability to display numerals and English characters , Input interface: 4×4 keypad , Serial characters can be inputted from keypad , Windows based data transmission operation software , Keypad switch provides with normal open type, Provides LED indication function ,AM and ASK Modulator and Demodulator/ FM and FSK Modulator and Demodulator: AM Modulation and Demodulation, AM Modulation Carrier Signal: 540 kHz ~ 1600 kHz.Audio Frequency Signal: 1 kHz ~ 2 kHz. AM Demodulation Carrier Signal: 540 kHz ~ 1600 kHz. Audio Frequency Signal: 1 kHz ~ 2 kHz. Modulation Index: 50%. ASK Modulation and Demodulation ASK Modulation Carrier Signal: 20 kHz ~100 kHz. Data Signal: 100 bps ~ 1 kbps. ASK Demodulation Carrier Signal: 20 kHz ~ 100 kHz. Data Signal: 100 bps ~ 1 kbps. FM Modulation and Demodulation: FM ModulationCarrier Signal: 20 kHz. Audio Frequency Signal: 1 kHz ~ 5 kHz. FM DemodulationNature Frequency: 20 kHz. Audio Frequency Signal: 1 kHz ~ 3 kHz. FSK Modulation and Demodulation FSK Modulation Space Signal: 1370 Hz. Mark Signal: 870 Hz. Data Signal: 100bps ~ 500 bps. FSK Demodulation Space Signal: 1370 Hz. Mark Signal: 870 Hz. Data Signal: 100 bps ~ 500 bps.CVSD Encoder and Decoder/ Manchester Encoder and Decoder Signal Source Encoder and Decoder (CVSD, )Sampling Frequency: 16 kHz ~ 50 kHz.Audio Frequency Signal: 100 Hz ~ 2 kHz.TTL input and output level signals. Channel Encoder and Decoder (Manchester)Input TTL level signal. CLK: 500 Hz~1 kHz., Data Rate: 250 bps~500 bps.TV Signal Generator, Modulator and Demodulator: TV Signal Generator, Built-in 4MHz quartz crystal oscillator, 8 selected types of TV signal, Output Signal: Ladder wave signal Output Frequency: 15.6 KHz, TV Signal Modulator, Audio Signal: FM Modulating signal FM Carrier signal: 5.5 MHz Built-in audio signal generator, Output frequency: 100Hz-1KHz Output amplitude: 600mV-1.2V TV signal: FM signal plus TV system Horizontal signal, TV Signal Demodulator Audio Signal: FM demodulated signal FM Carrier signal: 5.5 MHz Horizontal signal is demodulated by using the band-reject filter Built-in low pass filter to remove the noise of the audio signal Warranty: 1 (One) year with services Installation, Testing and Commissioning & Training (if require) must be performed by qualified and experienced engineers at Chadpur polytechnic premises Required documents: Original Manufacturer's Authorization Letter, Brochure & with contact details, ISO Certificate and Catalog