Comtech EF Data CDM-570L - Page 84

CDM-570/570L Satellite Modem with Optional IP Module Revision 4
Preface MN/CDM570L.IOM
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6.15 TEST ........................................................................................................................6–50
6.16 INFO (INFORMATION) ............................................................................................6–52
6.16.1 (INFO) ALL...........................................................................................................6–52
6.16.2 (INFO) TX (Transmit information) ........................................................................6–52
6.16.3 (INFO) RX (Receive information) .........................................................................6–53
6.16.4 (INFO) BUFF (Buffer information)........................................................................6–53
6.16.5 (INFO) FRAME (Framing and EDMAC information) ............................................6–54
6.16.6 (INFO) INTFC (Interface information) ..................................................................6–54
6.16.7 (INFO) REMCONT (Remote Control information) ...............................................6–55
6.16.8 (INFO) MASK (Alarm mask information)..............................................................6–55
6.16.9 (INFO) REF (Frequency Reference) ....................................................................6–55
6.16.10 (INFO) ID (Circuit ID) ...........................................................................................6–56
6.16.11 (INFO) 1:1 (1:1 Redundancy information)............................................................6–56
6.17 SAVE/LOAD .............................................................................................................6–56
6.17.1 (SAVE/LOAD) SAVE............................................................................................6–56
6.17.2 (SAVE/LOAD) LOAD ...........................................................................................6–57
6.18 UTILITY ....................................................................................................................6–58
6.18.1 (UTIL) BUFFER (Buffer re-center) .......................................................................6–58
6.18.2 (UTIL) CLOCK (Set real-time clock) ....................................................................6–58
6.18.3 (UTIL) REF (Reference).......................................................................................6–59
6.18.4 (UTIL) ID (Circuit ID) ............................................................................................6–61
6.18.5 (UTIL) 1:1 (Manual 1:1 switchover)......................................................................6–61
6.18.6 (UTIL) VFD (VFD Display brightness)..................................................................6–61
6.18.7 (UTIL) FIRMWARE ..............................................................................................6–62
6.18.8 (UTIL) FAST (FAST code options).......................................................................6–63
Chapter 7. FORWARD ERROR CORRECTION OPTIONS ................................................7–1
7.1 INTRODUCTION............................................................................................................7–1
7.2 VITERBI .........................................................................................................................7–2
7.3 REED-SOLOMON OUTER CODEC (HARDWARE OPTION) .......................................7–2
7.4 TRELLIS CODING (REQUIRES 8-PSK/8-QAM FAST OPTION) ..................................7–4
7.5 TURBO PRODUCT CODEC (HARDWARE OPTION)...................................................7–5
7.5.1 Introduction .............................................................................................................7–5
7.5.2 TPC modes available in the CDM-570/570L...........................................................7–5
7.5.3 8-QAM Modulation ..................................................................................................7–6
7.5.4 End-to-End Processing Delay.................................................................................7–6
7.5.5 Comparison of all TPC Modes ................................................................................7–7
7.6 UNCODED OPERATION (NO FEC) ..............................................................................7–8
7.7 RATES ABOVE 2.5 MSYMBOLS/SEC ..........................................................................7–9
Chapter 8. OFFSET QPSK OPERATION.............................................................................8–1