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Industrial & Power Electronics
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DIGITAL Communication Trainers
 

Model 7512
 

TDM Pulse Code Demodulation Receiver Trainer
 

Salient Features :
 
Input accepts two channel multiplexed data
On - board demultiplexed PCM receiver
On - Board Low Pass filters
Fast and slow operation of real time operation and examination of
   control signal and data on LED
On - board PLL for Clock Regeneration
On - board Sync Code Detector
Error check code options :
Odd or Even parity single bit error detection
Hamming code single bit error detection and correction
4 switched faults allow different error check code options
 

Technical Specifications :
 
Input Channels : 2 TDM serial input
Demodulation : Pulse Code Demodulation
Clock : Regeneration by PLL
Low Pass Filter : Butterworth 4th order 3.4 KHz cut - off frequency
  ( 02 nos )
Operating Speed : Fast - 16 KHz / channel ; Slow - 68 mHz ( 14.65
   seconds ) / channel
Error detection : Off, Odd or Even Parity (approx), Hamming code
Error correction : Hamming code
Test Points : 56
Interconnections : 4 mm sockets
Power : 230V ± 10% 50 Hz, 1 f AC
Accessories : a. Detailed Instruction Manual b. Set of patch cords
 

Experiments :
 
Study of Pulse Code Demodulation Technique
Study of Time Division Demultiplexing of PCM data
Study of Clock Regeneration by PLL
Study of Detection & Correction of Error induced by switched faults
   in the transmitter
Study of signal recovery in 3 connecting modes between
   transmitter & receiver
Study of importance of Clock and Frame Synchronization in PCM 
   system
Study of effect of induced faults in receiver

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@2006 Advance Electronic Industries
 
Contact :
1/135, Nahar & Seth Industrial Estate,
Pannalal Compound, L.B.S. Marg,

Bhandup (W), Mumbai - 400 078, INDIA
Voice: (+91-22) 2596 9769
Fax:   (+91-22) 2596 9770
          (+91-22) 2596 2147

 info@adtrontechnologies.com / adtron@vsnl.com