Table of Contents
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CDM-600L Satellite Modem
Preface
5.8
BALANCED G.703 INTERFACE CONNECTOR (P7)....................................................5-7
5.9
BNC CONNECTORS .....................................................................................................5-7
5.10
UNIT ALARMS (P5B) .................................................................................................5-8
5.11
AC POWER CONNECTOR ........................................................................................5-8
5.12
GROUND CONNECTOR ...........................................................................................5-9
FRONT PANEL OPERATION.........................................................................6-1
6.1
DESCRIPTION...............................................................................................................6-1
6.2
OPENING SCREEN.......................................................................................................6-5
6.3
MAIN MENU...................................................................................................................6-5
6.3.1
CONFIG ..................................................................................................................6-6
6.3.2
TEST.....................................................................................................................6-27
6.3.3
INFORMATION.....................................................................................................6-29
6.3.4
MONITOR .............................................................................................................6-33
6.3.5
STORE/LOAD.......................................................................................................6-36
6.3.6
UTILITIES .............................................................................................................6-37
6.3.7
LNB .......................................................................................................................6-39
6.3.8
BUC ......................................................................................................................6-39
6.3.9
FAST.....................................................................................................................6-40
FORWARD ERROR CORRECTION OPTIONS.............................................7-1
7.1
INTRODUCTION............................................................................................................7-1
7.2
VITERBI .........................................................................................................................7-1
7.3
SEQUENTIAL ................................................................................................................7-2
7.4
REED-SOLOMON OUTER CODEC ..............................................................................7-3
7.5
TRELLIS CODING (FAST OPTION) ..............................................................................7-5
7.6
TURBO PRODUCT CODEC (HARDWARE OPTION)...................................................7-6
7.6.1
Introduction .............................................................................................................7-6
7.6.2
The Evolution of TPC in Comtech Products ...........................................................7-6
7.6.3
End-to-End Processing Delay.................................................................................7-7
7.6.4
Comparison of all TPC Modes ................................................................................7-8
7.7
UNCODED OPERATION (NO FEC) ..............................................................................7-9
OFFSET QPSK OPERATION .........................................................................8-1
CHAPTER 9.
OPEN NETWORK OPERATIONS ..................................................................9-1
9.1
INTRODUCTION............................................................................................................9-1
9.2
IBS .................................................................................................................................9-1
9.2.1
IBS Clock/data recovery and De-jitter.....................................................................9-2
9.2.2
IBS Framing ............................................................................................................9-2
9.2.3
IBS Engineering Service Channel...........................................................................9-2
9.2.4
IBS Scrambling .......................................................................................................9-2
9.3
DROP AND INSERT ......................................................................................................9-2
9.3.1
D&I Primary Data Interfaces ...................................................................................9-3
iv
Revision 0
MN/CDM600L.IOM
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