TELECOMMUNICATIONS

OPTICAL FIBERS COMMUNICATION TRAINERS


Module OF.TEL900A-38



         
Transmitter Module

Description:
Transmitted light wavelength: 660 nm and 820 nm.
Data rate: 1 Mbps., Transmitter bandwidth: 1 MHz.
Built-in microphone input terminal and audio amplifier.
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.

Module OF.TEL900A-39



         
Receiver Module

Description:
Received light wavelength: 660 nm and 820 nm.
Data rate: 1 Mbps., Receiver bandwidth: 1 MHz.
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.

Module OF.TEL900A-40



         
Computer Control Module

Description:
Transmission interface: RS-232.
Transmission Baud rate: 9600 bps.
Type of display: LCD16X2 characters.
Includes data transmission operation software.
Keypad switch provides with normal open type.
Provides with LED indicator function.

Module OF.TEL900A-41



         
Analog and Digital Signal Modulations Modules

Description:
AM Modulation and Demodulation
FM Modulation and Demodulation:
ASK Modulation and Demodulation
FSK Modulation and Demodulation

Module OF.TEL900A-42



         
Digital Signal Processing Module

Description:
Signal Source Encoder and Decoder (CVSD)
Channel Encoder and Decoder (Manchester

Module OF.TEL900A-43



         
TV Signal Modulator and Demodulator

Description:
TV Signal Generator:
Built-in 4 MHz quartz crystal oscillator.
Output frequency: 15.6 kHz.
TV Signal Modulator:
Audio signal: FM demodulating signal.
FM carrier signal: 5.5 MHz.
TV Signal Modulator:
Audio signal: FM modulating signal.
FM carrier signal: 5.5 MHz.
Built-in audio signal generator.
Output frequency: 100Hz ~ 1 kHz;
Output amplitude: 600 mV ~ 1.2V.