All the communication out put from the receiver is being sent to the PCM/TDM demultiplexers for online demultiplexing of E1/T1, E2/T2, E3/T3 communication links. The de-multiplexer's
also act as an demodulator for online demodulating of various digital modulation
schemes(AM, FM PM, 2 to 16 FSK, 2 to 8 PSK, 16 to 64 QAM, GMSK, DBPSK, DQPSK,
OQPSK, UQPSK) and well as decoding systems for various coding schemes (Standard
PCM (m-law, A law with/without bit inversion, 3 segment law). Delta Modulation
Eurocom bit algorithm, ADPCM 24, 32 & 40 kbps, CVSD Eurocom/D1), being used by
the target links. |