Digital Communications Trainer

Technical Specification:
This comprehensive training system should consist of the following trainers and accessories:
Signal Sampling & Reconstruction Trainer
Time Division Multiplexing Transceiver Trainer
Pulse Code Modulation Transmitter Trainer
Pulse Code Modulation Receiver Trainer
Power Supply
Experiment Manual
Patch cords and
Power Cord
Technical Features:
Signal Sampling & Reconstruction Trainer:
Crystal Frequency: 4.096 MHz
Sampling Frequencies available: 1, 2, 4, 8 & 16 KHz
(selectable)
Audio Generator: Sine Wave with Frequency & Amplitude
Adjustable
Sampling Signal Duty cycle: Changeable by Decimal
Rotary Switch
Low Pass Filters: Butter worth 2nd & 4th order
Interconnections: 2 mm gold plated pins
Time Division Multiplexing Transceiver Trainer:
Analog signals generators: 250Hz, 500Hz, 1KHz, 2KHz
Crystal Generated Clock: 4.096MHz
Sampling Frequencies: 8KHz, 16KHz, 32KHz, 64KHz
Multiplexing Technique: Time Division Multiplexing
Modulation Technique: Pulse Amplitude Modulation
Low Pass Filters: 5th Order Butterworth Low Pass Filter with cut off at 3.4KHz
Interconnections: 2 mm gold plated pins
Pulse Code Modulation Transmitter Trainer:
Clock Frequency: 64KHz
Frame Sync: 8KHz
A/D Converter: 8-Bit Monolithic
Multiplexer: 8-Bit Parallel In Serial Out
Audio Source: 500Hz Audio Generator, Microphone
Modulation Type: Pulse Coded
PC interface: USB-UART interface
Interconnections: 2 mm gold plated pins
Pulse Code Modulation Receiver Trainer:
Clock: 64KHz
Frame Sync.: 8KHz
D/A Converter: 8-Bit Monolithic
PCM Input: Serial Input
De-Modulator: Pulse Coded Decoder
PC interface: USB-UART interface
Low Pass Filter: 5th order Butterworth with cut off frequency 3.4KHz
AC Amplifier
Audio Amplifier with Speaker
Interconnections: 2 mm gold plated pins