Comtech EF Data SNM-1001L Installation And Operation Manual page 14

SNM-1001L Satellite Modem
Preface
APPENDIX B. REMOTE CONTROL OPERATION.............................................................. B-1
B.1 General ............................................................................................................................................. B-1
B.2 Message Structure ........................................................................................................................... B-2
B.2.1 Start Character............................................................................................................................ B-2
B.2.2 Device Address .......................................................................................................................... B-2
B.2.3 Command/Response................................................................................................................... B-3
B.2.4 End Character ............................................................................................................................. B-4
B.3 Configuration Commands/Responses............................................................................................ B-5
B.3.1 Modulator Configuration Commands ........................................................................................ B-5
B.3.2 Demodulator Configuration Commands .................................................................................... B-7
B.3.3 Interface Configuration Commands ........................................................................................... B-9
B.3.4 System Configuration Commands............................................................................................ B-11
B.3.5 Automatic Uplink Power Control (AUPC) .............................................................................. B-12
B.4 Status Commands/Responses ....................................................................................................... B-14
B.4.1 Modulator Configuration Status............................................................................................... B-14
B.4.3 ODU Configuration Status................................................................................................ B-19
B.4.4 Fault Status........................................................................................................................ B-20
B.4.2 Error Performance .................................................................................................................... B-21
B.5 Stored Faults.................................................................................................................................. B-24
APPENDIX C. BURST MODE MODULATOR OPERATION .............................................. C-1
C.1 Burst Mode Modulator: Theory of Operation ........................................................................ C-1
C.1.1 Burst Mode........................................................................................................................... C-1
C.2 Burst Mode Modulator: Specifications .................................................................................... C-2
C.2.1 Digital Data Rate.................................................................................................................. C-2
C.2.2 Modulation and Encoding Types ......................................................................................... C-2
C.2.3 Scrambling Types ................................................................................................................ C-3
C.2.4 Differential Encoder............................................................................................................. C-3
C.2.5 Transmit Frequency (IF) ...................................................................................................... C-3
C.2.6 Frequency Reference............................................................................................................ C-3
C.2.7 Transmit Frequency Change Time....................................................................................... C-3
C.2.8 Phase Noise .......................................................................................................................... C-4
C.2.9 Transmit IF Output Switch .................................................................................................. C-4
C.2.10 Transmit IF Power ............................................................................................................... C-4
C.2.11 Modulator Power Offset....................................................................................................... C-4
C.2.12 Modulated IF Output Shape................................................................................................. C-4
C.2.13 Spurious Emissions .............................................................................................................. C-5
C.2.14 Modulator Phase Error ......................................................................................................... C-5
C.2.15 Transmit IF Test Modes....................................................................................................... C-5
C.2.16 Modulator Spectrum Rotation.............................................................................................. C-5
C.2.17 Transmit Preamble ............................................................................................................... C-6
C.2.18 Transmit Packet ................................................................................................................... C-6
C.2.19 Transmit Postamble ............................................................................................................. C-6
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MN/SNM1001L.IOM