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The 7403 is one of a range of digital communication trainers and provides all necessary inputs and connections fro students to study pulse code modulation transmission techniques. A communication link can be established by using model 7404, the pulse code modulation receiver.
Features:
- Functional blocks indicated via on board mimics
- Test points
- Fully documented student workbook
- Crystal controlled clock
- On-board sine generator (synchronised)
- 2 x TDM analogue channels
- PCM transmitter
- Fast and slow modes for real time operation and date flow examination
- Error check code (odd-even parity, hamming code)
- 4 switched faults allow different error check code options
Experiments:
- Study of pulse code modulation
- Study of A/D converter
- Study of parallel to serial data conversion
- Study of time division multiplexing of PCM data
- Study of synchronisation by pseudo random code
- Study of error check codes with switched faults operation
- Study of 3 connection modes between transmitter and receiver
- Three modes of operation to regenerate original signal
- Sync, clock, data lines connected
- Clock, data connected
- Data only
- Study of the effect of induced faults
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