Address Delimiter ................................................................................................................................ D-4

D.5.4

Instruction Code ................................................................................................................................... D-4

D.5.5

Instruction Code Qualifier ................................................................................................................... D-4

D.5.6

Optional Message Arguments ............................................................................................................. D-5

D.5.7

End of Packet ....................................................................................................................................... D-5

D.6

Remote Commands and Queries .............................................................................................. D-6

D.6.1

Tx Parameters....................................................................................................................................... D-7

D.6.2

Rx Parameters .................................................................................................................................... D-11

D.6.3

IP Packet Parameters ......................................................................................................................... D-14

D.6.4

Unit Parameters .................................................................................................................................. D-16

D.6.5

ACM Parameters ............................................................................................................................... D-23

D.6.6

G.703 Parameters ............................................................................................................................... D-24

D.6.7

Bulk Configuration Strings ............................................................................................................... D-26

D.6.8

Modem Information ........................................................................................................................... D-28

D.6.9

Modem Performance Information .................................................................................................... D-31

Table 1-1. FAST and FAST-accessible Hardware Options ...................................................................... 1-9

Table 3-1. CDM-750 Rear Panel Connectors ........................................................................................... 3-2

Table 5-1. CDM-750 Front Panel Menu Matrix ....................................................................................... 5-4

Table 5-2. Symbol Rate / Data Rate Range for Standard FECFrame (DVB-S2 Standard FECFrame = 64,800 bits)

........................................................................................................................................................ 5-16

Table 7-1. ACM Example for Standard FECFrame (64,800 bits) ............................................................ 7-2

Table 7-2. ModCod Comparison: ACM vs. CCM .................................................................................... 7-3

Table 7-3. Turning Margin into Additional Capacity ............................................................................... 7-5

Table 7-4. Modulation Type Impairment .................................................................................................. 7-8

Table 7-5. Spectral Efficiency and Ideal Es/No by ModCod .................................................................. 7-10

Table 7-6. Data Rate by Option Symbol Rate ........................................................................................ 7-14

Table 8-1. Spectral Efficiency using DoubleTalk Carrier-in-Carrier ....................................................... 8-7

Table A-1. CDM-750 Co+No/No to C/N (Es/No) and Eb/No (dB) for DVB-S2 QPSK and 8PSK ....... A-3

Table A-2. CDM-750 Co+No/No to C/N (Es/No) and Eb/No (dB) for DVB-S2 16APSK and 32APSK ......

......................................................................................................................................................... A-4

Figure 1-1. CDM-750 Advanced High-Speed Trunking Modem ............................................................. 1-1

Figure 1-2. CDM-750 Dimensional Envelope .......................................................................................... 1-5

Figure 1-3. CDM-750 Front Panel View .................................................................................................. 1-6

Figure 1-4. CDM-750 Rear Panel Views .................................................................................................. 1-6

Figure 1-5. 70/140 MHz Input Level vs Symbol Rate ............................................................................ 1-12

Figure 1-6. L-Band Input Level vs Symbol Rate .................................................................................... 1-13

Figure 2-1. Optional Rear-Mounting Support Bracket Kit (KT-0000168) Installation ........................... 2-3

Figure 2-2. Optional Bearingless Side-Railing Set (FP/SL0006) Installation ......................................... 2-4

Figure 3-1. CDM-750 Rear Panel Views .................................................................................................. 3-1

Revision 1

MN-CDM750

Tables