System Specification of C & M System

• Non-coherent FSK techniques are used for data transmission over OPTICAL FIBER links.
• Data Baud Rate is 250 Kbits/sec.
• Bit interleaved techniques are used for multiplexing Telemetry,Voice,Sync.,Dial and Aux.Channels.
• Polynomial and checksum ERROR DETECTION with ARQ capability.
• The Bit Error Probability is 10 ¯10 .

Bit rates available for various services

DATA (COMH - ANTCOM COMM)            ------------->  125 Kbits/sec

• VOICE (TELEPHONY VOICE)        ------------->   62.5 Kbits/sec
• DIAL (TELEPHONY SIGNALLING)    ------------->   15.625 Kbits/sec
• SYNC (SYNCHRONISATION PATTERN) ------------->   15.625 Kbits/sec
• AUX1 (AUXILIARY CHANNEL1)      ------------->   15.625 Kbits/sec

• AUX2 (AUXILIARY CHANNEL2) ------------->   15.625 Kbits/sec
                                          --------------------
                                          TOTAL BIT RATE    250 Kbits/sec
                                          --------------------

Next, we'll go into the details of the C & M system