Comtech EF Data DMD-2050E User Manual
Dmd-2050e
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MN-DMD2050E Revision 2
Comtech EF Data is an
AS9100 Rev B / ISO9001:2000 Registered Company
DMD-2050E
Universal Satellite Modem
Installation and Operation Manual
IMPORTANT NOTE: The information contained in this document supersedes all previously published information
regarding this product. Product specifications are subject to change without prior notice.
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Table of contents
Document Outline
- DMD-2050E REV 2
- Errata A, Theory of Operation
- Errata B, Chapters 3 and 4
- Table of Contents
- Preface
- PREFACE
- 1 Introduction
- 2 Installation
- 3 Theory of Operation
- Chapter 3. Theory of Operation
- 3.1 DMD2050E Hardware
- 3.2 DMD2050E Functional Block Diagram
- 3.3 Internal Clock
- 3.4 Loopback Features (Terrestrial & IF)
- 3.5 DMD2050E Clocking Options
- 3.6 Transmit Timing Options
- 3.7 Receive Timing Options
- 3.8 Ebem Framing Unit
- 3.9 STANAG Turbo Coding
- 3.10 FIPs TRANSEC Module
- 3.11 DoubleTalk Carrier-in-Carrier Option
- 3.11.1 What is DoubleTalk Carrier-in-Carrier?
- 3.11.2 Application Requirements
- 3.11.3 Operational Guidelines
- 3.11.4 System Functionality and Operational Considerations
- 3.11.5 DoubleTalk Carrier-in-Carrier Cancellation Process
- 3.11.6 Margin Requirements
- 3.11.7 Carrier-in-Carrier Latency
- 3.11.8 Carrier-in-Carrier and Adaptive Coding and Modulation
- 3.11.9 Carrier-in-Carrier Link Design
- 3.11.10 Carrier-in-Carrier Commissioning and Deployment
- 3.11.11 Validating Carrier-in-Carrier Performance
- 3.11.12 Operational References
- 3.11.13 DoubleTalk Carrier-in-Carrier Specifications
- 3.11.14 Carrier-in-Carrier Summary
- 3.11.15 Glossary
- 3.12 TPC and Low Density Parity Check (LDPC) Coding
- 3.13 Reed-Solomon Codec
- 3.14 DMD2050E Automatic Uplink Power Control (AUPC Operation)
- 3.15 Asynchronous Overhead Operation (Async Port / ES-ES Communications)
- 3.16 Standard IBS Mode
- 3.17 Asynchronous Multiplexer Mode
- 3.18 ESC Backward Alarms
- 3.19 Satellite Control Channel (SCC)
- 3.20 SCC OVERHEAD CHANNEL SETUP
- 3.21 Locating the DMD2050E ID Code Operational Procedure
- Chapter 3. Theory of Operation
- 4 User Interfaces
- 5 External Connections
- 6 Maintenance and Troubleshooting
- 7 Technical Specifications
- 7.1 Modulator
- 7.2 Demodulator
- 7.3 Plesiochronous Buffer
- 7.4 Monitor and Control
- 7.5 Terrestrial Interfaces
- 7.6 IBS/Synchronous Interface (Standard)
- 7.7 High-Speed Serial Interface (HSSI) & Gigi Ethernet Data Interface
- 7.8 Key loader interface
- 7.9 Environmental
- 7.10 Physical
- 7.11 Data Rate Limits
- 7.12 BER Specifications
- 7.12.1 BER Performance (Viterbi)
- 7.12.2 BER Performance (Sequential)
- 7.12.3 BER Performance (Viterbi with Reed-Solomon)
- 7.12.4 BER Performance (Turbo)
- 7.12.5 BER Performance (8PSK Trellis)
- 7.12.6 BER Performance (8PSK Turbo)
- 7.12.7 BER Performance (16QAM Viterbi)
- 7.12.8 BER Performance (16QAM Viterbi with Reed-Solomon)
- 7.12.9 BER Performance (16QAM Turbo)
- 7.12.10 BER Performance (OQPSK Turbo)
- 7.12.11 BER Performance (BPSK Turbo)
- 7.12.12 BER Performance (8PSK Turbo)
- 7.12.13 BER Performance (16QAM Turbo)
- 7.12.14 B/O/QPSK BER Performance (LDPC)
- 7.12.15 8PSK / 8QAM BER Performance (LDPC)
- 7.12.16 16QAM BER Performance (LDPC)
- 7.12.17 BER Performance B/O/QPSK (MILSTD 188-165B or STANAG) Turbo
- 7.12.18 BER Performance 8PSK (MILSTD 188-165B or STANAG) Turbo
- 7.12.19 BER Performance 16APSK (MILSTD 188-165B or STANAG) Turbo
- 7.13 AGC Output Voltage
- App A Product Options
- App B Front Panel Upgrade Procedure
- App C Carrier Control
- App D Web Browser Setup Guide
- App E Efficient Drop
- App F TCPIP Ethernet Setup
- App G AUPC
- App H Ethernet Data Interface Setup
- App I Strap Codes
- App J ITA
- Addendum TRANSEC
- Cover_Back