Optical Fibers Communication Trainer

We are leading manufacturer and suppliers of Optical Fibers Communication Trainer. Now accepting bulk orders for government tenders around the globe.

Optical Fibers Communication Trainer

Product Code: AT 9080

Optical Fibers Communication Trainer Manufacturer

Features :

  Textbook includes the theoretical & practical details

Textbook includes the expected results for reference

Problem discussion attached together with answers for instructor

Only need Oscilloscope & Spectrum analyzer to obtain the measured results

( not included )

Specifications :

 Module One : Transmitter Module

  Transmitted light wavelength : 660 nm  &  820 nm

Data rate : 1 Mbps

Transmitter bandwidth : 1 MHz

Includes digital & analog transmitter,  and  also covers with E/O conversion circuit

Built in microphone input terminal and audio amplifier

Built in sine wave output signal, and also includes tunable amplitude and frequency output

Amplitude : 2Vpp,  Frequency : 100Hz ~ 2.5KHz

Built in digital data generator, used to produce TTL signal & CMOS level output

The wavelength of optical fibers transmission line : 500nm ~ 1200nm; ST & DIN connectors

Module Two : Receiver

 Received light wavelength : 660 nm & 820 nm

Data rate : 1 Mbps

Transmitter bandwidth : 1 MHz

Includes digital & analog receiver, and also covers with E/O conversion circuit

Provided with tunable amplifier, which can drive the 8 ohm loud speakers

The wavelength of optical fibers transmission line : 500nm ~ 1200nm; ST & DIN connectors

Module Three : Computer Control Module

 Transmitter interface : RS-232

Transmission baud rate : 9600bps

Type of display : LCD 16×2 characters

Ability to display numerals and English characters

Input interface : 4 x 4 keypad

 Serial characters can be inputted from keypad

Includes data transmission operations software

The operation software environment : Windows

Keypad switch provides with normal open type

Provides with LED indicator function

 Module Four : Analog and Digital Signal Modulations Module 

 AM Modulation & Demodulation :

(1) AM Modulation : Carrier signal : 540KHz ~ 1600KHz

Audio frequency signal : 1KHz ~ 2KHz

(2) AM Demodulation : Carrier signal : 540KHz ~ 1600KHz

Audio frequency signal : 1KHz ~ 2KHz

Modulation index : 50%

FM Modulation & Demodulation :

(1) FM Modulation : Carrier signal : 20 KHz

Audio frequency signal : 1KHz ~ 5KHz

(2) FM Demodulation :  Nature frequency : 20 KHz

Audio frequency signal : 1KHz ~ 3KHz

ASK Modulation & Demodulation :

 (1) ASK Modulation : Carrier signal : 20 KHz ~ 100KHz

Data signal : 100bps ~ 1kbps

(2) ASK Demodulation : Carrier signal : 20 KHz ~ 100KHz

   Data signal : 100bps ~ 1kbps

FSK Modulation & Demodulation :

(1) FSK Modulation : Space  signal : 1370 Hz

Mark  signal : 870 Hz

Data  signal : 100bps ~ 500bps

(2) FSK Demodulation : Space  signal : 1370 Hz

Mark  signal : 870 Hz

Data  signal : 100bps ~ 500bps

Module Five : Digital Signal Processing Module 

 (1) Signal Source Encoder & Decoder (CVSD) : Sampling frequency : 16KHz ~ 50KHz

Audio frequency signal : 100Hz ~ 2KHz

TTL input & output level signals

(2) Channel Encoder & Decoder (Manchester) : Input TTL level signal

CLK : 500Hz ~ 1KHz

Data Rate : 250bps ~ 500bps

Module Six : TV Signal Modulator and Demodulator 

(1) TV Signal Generator : Built in 4 MHz quartz crystal oscillator

8 selected types of TV signal

Output signal : ladder wave signal

Output frequency : 15.6 KHz

(2)   TV Signal Modulator : Audio signal : FM demodulating signal

FM carrier signal : 5.5 MHz

Built in low pass filter to remove the noise of the audio signal

(3) TV Signal De-Modulator : Audio signal : FM demodulating signal

 

FM carrier signal : 5.5 MHz

 

Built in audio signal generator,

 

output frequency : 100Hz ~ 1KHz,

 

output amplitude : 600mV ~ 1.2 V

Function Generator

  Ports : Two signal outputs ports

 

Frequency range : 10Hz ~ 100KHz

100Hz ~ 1MHz

Waveforms : Sine, Triangle, Square, TTL Plus

Amplitude : 10Vpp

Built In 6 digit frequency counter

Large 0.5 LED / LCD display

Overload protection

D C POWER SUPPLY

Triple bipolar voltage outputs

Consultant voltage operation

Low ripple & noise

Constant voltage output : ±5V, ±12V

Variable voltage output : 0V ~ ±15V

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