Specifications

SDM-300L3 Satellite Modem Revision 0
Preface MN/SDM300L3.IOM
ix
15.8 Bit Error Rate Performance ..................................................................................................15–22
15.8.1 Performance With Noise, Viterbi Decoder, and Closed Network ....................................15–22
15.8.2 Performance with Noise, Viterbi Decoder, and Reed-Solomon (Optional)...................15–22
15.8.3 Performance With BPSK and {O}QPSK BER Performance ...........................................15–22
15.8.4 Performance with Noise Turbo Product Codec (Optional)...............................................15–23
15.8.5 Performance With Noise, 1544 kbps Sequential Decoder and Reed Solomon(Optional)15–23
15.8.6 Performance With Noise, 56 kbps Sequential Decoder (Optional) ..................................15–23
15.8.7 Performance With Noise, 1544 kbps Sequential Decoder (Optional) ..............................15–24
15.8.8 BER Threshold..................................................................................................................15–24
15.9 Acquisition Time.....................................................................................................................15–25
15.9.1 Receive Carrier Acquisition Range...................................................................................15–26
15.9.2 Receive Carrier Reacquisition ..........................................................................................15–26
15.9.3 AGC Output......................................................................................................................15–26
15.9.4 Doppler Tracking Performance.........................................................................................15–26
15.10 Interface Specifications.......................................................................................................15–27
15.10.1 TX Clock Switching Due to Failure of Selected Clock ................................................15–27
15.10.2 TX Clock Phase Adjustment.........................................................................................15–27
15.10.3 TX Data Phase Adjustment...........................................................................................15–27
15.10.4 Transmit Clock Source..................................................................................................15–27
15.10.5 Send Clock Timing Source ...........................................................................................15–27
15.10.6 Doppler/Plesiochronous Buffer Clock Source..............................................................15–28
15.10.7 RX Clock Switching Due to Failure of Selected Clock................................................15–28
15.10.8 RX Clock Phase Adjustment.........................................................................................15–28
15.10.9 RX Clock Jitter..............................................................................................................15–28
15.10.10 RX Data Phase Adjustment...........................................................................................15–28
15.10.11 Buffer Centering ...........................................................................................................15–28
15.10.12 Receive Doppler/Plesiochronous Buffer Size...............................................................15–29
15.10.13 Switch Faults.................................................................................................................15–29
15.11 Decoding...............................................................................................................................15–29
15.11.1 BPSK Decoding............................................................................................................15–29
15.11.2 QPSK Decoding............................................................................................................15–29
15.11.3 OQPSK Decoding (Optional) .......................................................................................15–30
15.11.4 8PSK Decoding.............................................................................................................15–30
15.12 Terrestrial Interface Types ................................................................................................15–31
15.12.1 EIA-232 Specification...................................................................................................15–31
15.12.2 V.35 Specification V.10, V.11 Specification, Circuit Supported .................................15–32
15.12.3 EIA-449/EIA-422 Mil-188-114A Specification ...........................................................15–33
15.12.4 Optional G.703 with ASYNC (Requires optional Overhead Card)..............................15–33
15.13 Asynchronous Overhead Specification (Optional)...........................................................15–34
15.13.1 Asynchronous Baud Rates ............................................................................................15–35
15.13.2 Asynchronous Overhead Data Format..........................................................................15–35
15.13.3 Asynchronous Overhead Parameters ............................................................................15–35
15.13.4 AUPC with Reed-Solomon Option...............................................................................15–35
15.13.5 Turbo AUPC.................................................................................................................15–36