Description
Optical fiber communication training system
PRODUCT MODULES :
RANSMITTER MODULE :
Transmitted light wavelength: 660 nm and 820 nm.
Data rate: 1 Mbps.
Transmitter bandwidth: 1 MHz.
Includes digital and analog transmitters,
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: 2 Vpp; Frequency : 100 Hz ~ 2.5 kHz.
Built-in digital data generator, used to produce TTL
signal and CMOS level output.
The wavelength of optical fibers transmission
line: 500 nm ~ 1200 nm;
ST and DIN connectors
RECEIVER MODULE :
Received light wavelength: 660 nm and 820 nm.
Data rate: 1 Mbps.
Receiver bandwidth: 1 MHz.
Includes digital and analog receivers,
and also covers with O/E conversion circuit.
Provided with tunable amplifier, which can drive
the 8 W loud speaker.
The wavelength of optical fibers transmission
line: 500 nm ~ 1200 nm;
ST and DIN connectors.
Data Rate: 250 bps~500 bps
ANALOG AND DIGITAL SIGNAL MODULATIONS MODULES :
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%.
FM Modulation and Demodulation
FM Modulation:
Carrier Signal: 20 kHz.
Audio Frequency Signal: 1 kHz ~ 5 kHz.
FM Demodulation:
Nature Frequency: 20 kHz.
Audio Frequency Signal: 1kHz ~ 3 kHz.
CASK 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.
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
DIGITAL SIGNAL PROCESSING MODULE:
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
TV SIGNAL MODULATOR AND DEMODULATOR
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.
TV Signal Modulator
Audio signal: FM demodulating 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.
amplitude : 600 mV ~ 1.2V.
TV Signal: FM signal plus TV system horizontal
signal.
Manuals :
All manuals are written in English
Model Answer
Teaching Manual
Accessories :
Connecting Wire: 1 set.
Power Cord.
2mm or 4mm safety Jack: 1 set.
User Manual: 1Set.
Others :
Installation
Training
Part Country of Origin : China
Country of Manufacture: Bangladesh
