Comtech EF Data CDM-Qx, Installation And Operation Manual

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CDM-Qx Satellite Modem Revision 6
Table of Contents MN/CDMQx.IOM
APPENDIX B. FLASH UPGRADING ................................................................................. B–1
B.1 Ethernet FTP upload procedure: .............................................................................. B–1
APPENDIX C. REMOTE CONTROL ................................................................................... C-1
C.1 RS-485 .......................................................................................................................... C-1
C.2 RS-232 .......................................................................................................................... C-2
C.3 Basic Protocol ............................................................................................................. C-2
C.4 Packet Structure.......................................................................................................... C-3
C.4.1 Start Of Packet ...................................................................................................... C-3
C.4.2 Address ................................................................................................................. C-3
C.4.3 Instruction
Code .................................................................................................... C-4
C.4.4 Instruction Code Qualifier...................................................................................... C-4
C.4.5 Message Arguments ............................................................................................. C-6
C.4.6 End Of Packet ....................................................................................................... C-6
C.5 Remote Commands .................................................................................................... C-6
C.5.1 TX Remote Commands......................................................................................... C-9
C.5.2 RX Remote Commands ...................................................................................... C-12
C.5.3 Common Remote Commands for Tx or Rx or Modem ........................................ C-16
C.5.4 Query Commands ............................................................................................... C-25
C.5.5 Bulk Commands .................................................................................................. C-34
C.5.6 BUC Commands ................................................................................................. C-36
C.5.7 LNB Commands .................................................................................................. C-38
C.5.8 Built-in BERT commands (BER Tester) .............................................................. C-40
C.5.9 Spectrum Analyzer Commands........................................................................... C-41
C.5.10 Drop & Insert Commands (E1 CCS Only) for D&I++....................................... C-42
APPENDIX D. CARRIER-IN-CARRIER
®
PERFORMANCE CHARACTERIZATION ........ D–1
D.1 Carrier-in-Carrier
®
Description.................................................................................. D–1
D.2 Degradation Due To Carrier Spacing ....................................................................... D–2
D.3 Selecting The Adjacent Carrier Curve...................................................................... D–5
D.4 Carrier-in-Carrier
®
Ratio (CnC Ratio)........................................................................ D–6
D.5 Symbol Rate Ratio ..................................................................................................... D–8
D.6 CnC Carrier Offset...................................................................................................... D–8
D.7 1
st
CnC Example: Adjacent Carriers, CnC Ratio and Rain Fade ............................ D–8
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