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CDM-625A Advanced Satellite Modem
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Figure B-16. LDPC Codec Rate 2/3 QPSK/OQPSK and 8-PSK/8-QAM ..................................................... B–29
Figure B-17. LDPC Codec Rate 3/4 QPSK/OQPSK, 8-PSK/8-QAM, and 16-QAM ..................................... B–30
Figure B-18. VersaFEC Codec Rate 0.488 BPSK ....................................................................................... B–31
Figure B-19. VersaFEC Codec Rates 0.533, 0.631, 0.706, and 0.803 QPSK ............................................. B–32
Figure B-20. VersaFEC Codec Rates 0.642, 0.711, and 0.780 8-QAM ..................................................... B–33
Figure B-21. VersaFEC Codec Rates 0.731, 0.780, 0.829, and 0.853 16-QAM ........................................ B–34
Figure E-1. TX Clock Modes ....................................................................................................................... E–3
Figure E-2. RX Clock Modes....................................................................................................................... E–5
Figure E-3. Supported T1 and E1 Framing Formats .................................................................................. E–7
Figure E-4. Drop and Insert Clocking ......................................................................................................... E–9
Figure E-5. Single-Source Multiple Modems (Looming) ......................................................................... E–10
Figure E-6. Single-Source Multiple Modems (Daisy-chain) ..................................................................... E–10
Figure E-7. G.703 Clock Extension Mode 1 ............................................................................................. E–13
Figure E-8. G.703 Clock Extension Mode 2 ............................................................................................. E–14
Figure E-9. G.703 Clock Extension Mode 3 ............................................................................................. E–15
Figure F-1. Conceptual Block Diagram ...................................................................................................... F–3
Figure F-2. Conventional FDMA Link ......................................................................................................... F–5
Figure F-3. Same Link Using CDM-625A and DoubleTalk Carrier-in-Carrier ............................................. F–6
Figure F-4. Duplex Link Optimization ........................................................................................................ F–6
Figure F-5. DoubleTalk Carrier-in-Carrier Signals ...................................................................................... F–8
Figure F-6. Carrier-in-Carrier Signal Processing Block Diagram ................................................................ F–8
Figure 16-1. CDM-625A Ethernet Architecture Design ............................................................................. K–1
Figure 16-2. Improper Use of External Ethernet Switch with CDM-625A ................................................ K–2
Figure 16-3. Ethernet Networking Loop Example (Simplified) ................................................................. K–2
Figure 16-4. Networking Loop Example .................................................................................................... K–3
Figure 16-5. Hub-to-Hub with Standard Traffic using Routers ................................................................. K–4
Figure 16-6. Hub-to-Remotes with Standard Traffic using Routers or Switches ...................................... K–5
Figure 16-7. Point-to-Point Configuration in "Router Multipoint Hub" Working Mode .......................... K–6
Figure 16-8. Point-to-Multipoint using Routers ........................................................................................ K–7
Figure 16-9. Point-to-Multipoint using Switches ...................................................................................... K–8
Figure 16-10. Point-to-Multipoint (Router Multipoint Hub Mode) .......................................................... K–9
Figure 16-11. Multicast Routing Diagram ............................................................................................... K–11
Figure 16-12. Configuration Example for a Multicast Routing Network................................................. K–12
Figure 16-13. Configuration Example – Point-to-Point Network with PTP ............................................. K–15
Figure 16-14. PTP Master/Slave Assignment Example ........................................................................... K–17
Figure L-1. CDM-625A Telnet Interfaces Interfaces (Serial Remote / CLI) ................................................ L–6
Figure L-2. CDM-625A Web Server (HTTP) Interface Home Page ............................................................. L–7
Figure M-1. ACM-over-Satellite – Generic Example ................................................................................ M–4
Figure M-2. VersaFEC Codes vs. Constrained Capacity ............................................................................ M–7
Figure M-3. CDM-625A – ACM ModCod Switch Points ......................................................................... M–11
Figure M-4. CDM-625A – ACM Congestion Control ............................................................................... M–12
Figure 20-1. IEEE 802.1q VLAN priority ..................................................................................................... R–5
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