Comtech EF Data CDM-750 - Manual (Page 16)

CDM-750 Advanced High-Speed Trunking Modem Revision 2
Table of Contents MN-CDM750
xiv
Figure B‐1. Typical PIIC Module Installation ............................................................................................. B–2
Figure B‐2. G.703 E3/T3/STS‐1 PIIC Module ............................................................................................. B–4
Figure B‐3. G.703 E3/T3/STS‐1 PIIC Module Block Diagram ..................................................................... B–4
Figure B‐4. G.703 E3/T3/STS‐1 PIIC Module Panel Connectors ................................................................ B–4
Figure B‐5. STM‐1 Copper PIIC Module Kit (CEFD P/N KT‐0000255) ........................................................ B–6
Figure B‐6. STM‐1 Copper PIIC Module – SFP Installation ........................................................................ B–6
Figure B‐7. OC‐3 Single Mode or Multi Mode PIIC Module Kit (CEFD P/N KT‐000025X) .......................... B–8
Figure B‐8. OC‐3 Single Mode or Multi Mode PIIC Module – SFP Installation .......................................... B–8
Figure C‐1. Downlink Margin vs. Average Link Availability ....................................................................... C–4
Figure C‐2. User Throughput vs. Time and Fades ..................................................................................... C–5
Figure C‐3. ACM‐over‐Satellite – Generic Example .................................................................................. C–7
Figure C‐4. Single Hop Latency .................................................................................................................. C–9
Figure C‐5. Spectral Efficiency vs. Ideal Es/No @ QEF ............................................................................ C–12
Figure C‐6. Spectral Efficiency vs. Modem Es/No @ QEF (Pruned ModCods) ........................................ C–13
Figure C‐7. CDM‐750 Web Server Interface – Configuration | Modem page ........................................ C–17
Figure C‐8. CDM‐750 – ACM Congestion Control ................................................................................... C–19
Figure D‐1. Conceptual Block Diagram ..................................................................................................... D–3
Figure D‐2. Conventional FDMA Link ........................................................................................................ D–5
Figure D‐3. Same Link Using CDM‐750 and DoubleTalk
Carrier‐in‐Carrier ............................................... D–6
Figure D‐4. Duplex Link Optimization ....................................................................................................... D–6
Figure D‐5. DoubleTalk Carrier‐in‐Carrier Signals ..................................................................................... D–8
Figure D‐6. Carrier‐in‐Carrier Signal Processing Block Diagram ............................................................... D–9
Figure F‐1. Networking Loop with Switches ............................................................................................. F–2
Figure F‐2. CDM‐750 Ethernet Architecture Design ................................................................................. F–3
Figure F‐3. Improper Use of External Switch with CDM‐750 .................................................................... F–4
Figure G‐1. CDM‐750 Data Flow Diagram ................................................................................................ G–2
Figure H‐1. DVB‐S2 QPSK Packet Error Rate versus Es/No .......................................................................H–3
Figure H‐2. DVB‐S2 8PSK Packet Error Rate versus Es/No ........................................................................H–4
Figure H‐3. DVB‐S2 16APSK Packet Error Rate versus Es/No ....................................................................H–5
Figure H‐4. DVB‐S2 32APSK Packet Error Rate versus Es/No ....................................................................H–6