Comtech EF Data CDM-600L Installation And Operation Manual page 9

CDM-600L Satellite Modem
Preface
9.3.2 D&I Framing............................................................................................................9-3
9.4 IDR .................................................................................................................................9-4
9.4.1 IDR Primary Data Interfaces ...................................................................................9-5
9.4.2 IDR Engineering Service Channel ..........................................................................9-5
CHAPTER 10. CLOCK MODES AND DROP AND INSERT (D&I) ....................................10-1
10.1 TRANSMIT CLOCKING ...........................................................................................10-1
10.1.1 Internal Clock ........................................................................................................10-1
10.1.2 Tx Terrestrial.........................................................................................................10-2
10.1.3 Rx Loop-Timed, RX=TX........................................................................................10-2
10.1.4 Rx Loop-Timed, RX<>TX (Asymmetric Loop Timing)...........................................10-2
10.1.5 External Clock.......................................................................................................10-2
10.1.6 External Reference ...............................................................................................10-3
10.2 RECEIVE CLOCKING ..............................................................................................10-3
10.2.1 Buffer Disabled (RX Satellite) ...............................................................................10-3
10.2.2 Buffer Enabled, TX=RX (TX Terrestrial or External Reference) ...........................10-3
10.2.3 Buffer Enabled, RX<>TX (TX Terrestrial or External Reference) .........................10-3
10.3 X.21 NOTES.............................................................................................................10-3
10.4 DROP AND INSERT ................................................................................................10-6
10.5 FRAME FORMATS ..................................................................................................10-6
10.6 TIME SLOT SELECTION .........................................................................................10-7
10.7 DROP AND INSERT CLOCKING.............................................................................10-7
10.8 RX BUFFER CLOCK = INSERT (D&I ONLY) ..........................................................10-8
CHAPTER 11. EDMAC CHANNEL ......................................................................................11-1
11.1 THEORY OF OPERATION ......................................................................................11-1
11.2 M&C CONNECTION ................................................................................................11-2
11.3 SETUP SUMMARY ..................................................................................................11-3
CHAPTER 12. AUTOMATIC UPLINK POWER CONTROL................................................12-1
12.1 INTRODUCTION ......................................................................................................12-1
12.2 SETTING AUPC PARAMETERS .............................................................................12-2
12.2.1 Target Eb/No.........................................................................................................12-2
12.2.2 Max Range............................................................................................................12-2
12.2.3 Alarm.....................................................................................................................12-3
12.2.4 Demod Unlock ......................................................................................................12-3
12.3 COMPENSATION RATE..........................................................................................12-3
12.4 MONITORING ..........................................................................................................12-4
CHAPTER 13. FLASH UPGRADING ...................................................................................13-1
CHAPTER 14. SUMMARY OF SPECIFICATIONS ..............................................................14-1
14.1 MODULATOR...........................................................................................................14-1
14.2 DEMODULATOR......................................................................................................14-4
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MN/CDM600.IOM