Comtech EF Data CDM-570L Installation And Operation Manual page 84

CDM-570/570L Satellite Modem with Optional IP Module
Preface
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
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MN/CDM570L.IOM