Comtech EF Data CDM-750, Инструкция по установке и эксплуатации

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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