The trainer provides all necessary inputs and connections for students to study experiment PCM transmission techniques. A communication link can be established by using PCM receiver.
Features :
► Crystal controlled Clock.
► On – board Sine Generator ( synchronised ).
► 2 TDM analog channels.
► PCM transmitter
► Fast and slow modes for real time operation and data flow examination.
► Error check code options ( odd even parity hamming code ).
► ( 4 ) 2 switched faults allow error check code options.
Technical Specifications
1. Crystal Frequency : 12 MHz
2. On – Board generators : 1. Adjustable amplitude sine generator of 1 & 2 KHz frequency ( synchronized )
2. Variable amplitude DC level ( 02 Nos )
3. Analog Input Channels : Two.
4. Modulation : Pulse Code Modulation.
5. Sync Signal : Pseudo random sync code generator.
6. Error checking code : Off odd even hamming.
7. Operating Mode : Fast 16 KHz / channel ( approx ) slow 68 MHz /channel ( approx )
8. Test Point : 49.
9. Interconnections : 4 mm sockets.
10. Power : 230V ± 10% 50 Hz.
11. Accessories : a. Manuals.
b. Set of Patch cords.
c. Line cord.
12. Multiplexing : Time Division Multiplexing
Experiment that can be performed
1. Study of pulse code modulation technique.
2. Study of A / D converter.
3. Study of Parallel to serial data conversation.
4. Study of synchronization by Pseudo random code.
5. Study of error check code with switched faults operation.
a. sync, clock, data, lines, connected.
b. Clock, data connected.
c. Data only.
6. Study of effect of induced faults.
7. Study of Time Division Multiplexing of PCM data.