Comtech EF Data SDM-300A User Manual

Sdm-300a

Part Number MN/SDM300A.IOM

Revision 6

SDM-300A

Satellite Modem

Installation and Operation Manual

Table of contents

Document Outline

SDM300A Satellite Modem
Errata A
- A.1 General
- A.2 Message Structure
Errata B
- - Remote Connector and Pinouts (J6)
Customer Support
Table of Contents
- About this Manual
- Telecommunications Terminal Equipment Directive
- EMC (Electromagnetic Compatibility)
- Warranty Policy
Introduction
- Overview
- Options
  - Factory-Installed Options
  - Factory- or User-Installed Options
- Description of FAST Options
- Compatibility
- Breakout Panels
- Comtech EF Data Part Numbers
- New in this Release
Functional Description
- Description of Monitor and Control (M&C)
- Description of the Modulator
  - Theory of Operation
  - Theory of Modulation Types
- Description of the Demodulator
  - Theory of Operation
- Description of the Decoder
- Description of the Interface
- Backward Alarm Theory and Connections
Installation/Upgrades
- Unpacking
- Installation
  - - - Modem Installation (Optional):
        Tools Required:
- Software and Hardware Installation/Upgrades
  - Overhead Interface PCB Installation
  - Hardware Upgrades
- Reed-Solomon PCB
  - Unpacking
  - Installation
- Turbo Codec Installation
  - Unpacking
  - Installation
    - - Install the Turbo Codec Card on the Main PCB:
        Firmware Installation:
        Turbo Setup
- Duplex Reed-Solomon Codec Installation
  - - - Duplex Reed-Solomon Installation:
- Data I/O Interface Connector (J8) Removal/Installation
  - Data I/O Connector (J8) Removal
  - Data I/O Connector (J8) Installation
- Hardware Upgrades
  - Main PCB Firmware Chips
  - Overhead Interface PCB
External Connections
- External Modem Connections
FRONT PANEL OPERATION
- Front Panel
  - LED Indicators
  - Front Panel Keypad
- Menu System
- Revision Emulation Operation
- Opening Screen
- Custom Modem Defaults
Modem Type
- Modem Types
- Reed-Solomon Modes
Clocking Options
- Clocking Options
Buffering
- Buffering
- Buffer Size
- Doppler
- Plesiochronous
- Frame/Multiframe Length
  - Multiples of the Frame Length
  - Total Buffer Length
- Converting Between Bits and Seconds
  - Bits to Seconds
  - Seconds to Bits
Forward Error Correction (Options)
- Introduction
- Viterbi
- Sequential
- Reed-Solomon Outer Codec
  - Closed Network Modes
  - Open Network Modes
- Trellis Coding (FAST Option)
- Turbo Product Codec (Hardware Option)
- Uncoded Operation (No FEC)
Open Network Operations
- Introduction
- Intelsat Business System (IBS)
- Intermediate Data Rate (IDR)
- Drop and Insert (D&I)
Asynchronous Interface/AUPC
- Asynchronous Interface/AUPC
- AUPC
  - AUPC – Between Two Modems
    - Remote AUPC
      - Remote Modem AUPC Configuration and Monitor
  - Self-Monitoring Local Modem AUPC Control
- ASYNC
- ASYNC Channel EIA-485 2- and 4-Wire Operation
Asymmetrical Loop Timing
- Introduction
Duplex-Reed Solomon Card Option
- Duplex Reed-Solomon Card Option
8-Channel Multiplexer
- Introduction
- Installation
- 8-Channel Multiplexer Specifications
- 8-Channel Multiplexer 100-Pin Connector (J10)
Flex Mux
- Introduction
- Installation
- Flex MUX 50-Pin Connector Definitions
FAST Accessible Options
- Introduction
- FAST Accessible Options
- FAST System Theory
- Implementation
  - Activation Procedure
- Variable Data Rates
FLASH Upgrading
- Introduction
Troubleshooting
- System Checkout
- Interface Checkout
  - Modulator Checkout
  - Demodulator Checkout
- Fault Isolation
Specifications
- Specifications Summary
- Environmental and Physical Specifications
- Remote Control Specifications
- Modulator Specifications
- Demodulator Specifications
- BER Performance Specifications
- Acquisition Time
- Interface Specifications
  - Transmit Clock Source
  - Send Clock Timing Source
- Terrestrial Interface Types
- System Specifications
- Dimenionsal Envelope
Remote Control Operation
- General
- Message Structure
  - Start Character
  - Device Address
- Commands/Responses Format
- End Character
- Modulator Configuration Commands
- Demodulator Configuration Commands
  - A.7 Interface Configuration Commands
- A.8System Configuration Commands
- A.9Automatic Uplink Power Control (AUPC)
  - A.9.1Local Modem AUPC Commands
  - A.9.2Remote Modem AUPC Commands
- A.10MUX PCB Configuration Commands (MUX PCB Installed Only)
- A.11Flex Mux Configuration Commands (Flex Mux PCB Installed Only)
- A.12Modulator Configuration Status
- A.13Demodulator Configuration Status
- A.14 Interface Configuration Status
- A.15Modem Fault Status
- A.15Error Performance Status
- A.16Stored Faults
- A.17Bulk Consolidated Analog Status
- A.18Bulk Consolidated Status
- A.19Bulk Consolidated Status Faults
- A.20Miscellaneous Status
Glossary
Index
Backcover