Comtech EF Data SDM-300L3 User Manual

Sdm-300l3, 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.

Part Number MN/SDM300L3.IOM

Revision 1

SDM-300L3

Satellite Modem

Installation and Operation Manual

Table of contents

Document Outline

SDM300L3 Satellite Modem Rev 1
Customer Support
Table of Contents
- About this Manual
- Related Documents
  - Conventions and References
    - Cautions and Warnings
- Metric Conversion
- Electrical Safety
- Environmental
- Installation
- Telecommunications Terminal Equipment Directive
- EMC (Electromagnetic Compatibility)
- Warranty Policy
1 INTRODUCTION
- Overview
- Options Summary
- Comtech EF Data Part Numbers
- FAST Accessible Options
- Compatibility
- Description of the Modulator
- Description of the Demodulator
  - Overview
  - Functional Description
- Description of Monitor & Control
  - Overview
  - Functional Description
- Dimensional Envelope
2 INSTALLATION/ UPGRADES
- Unpacking
- Installation
  - Modem Installation (Optional)
- Software and Hardware Installation/Upgrades
- Data I/O Interface Connector (J8) Removal/Installation
  - G.703/ASYNC Module
- Hardware Upgrades
  - 2.5.1Main PCB Firmware Chips
  - 2.5.2Overhead Interface PCB Firmware Chips
- Flash Upgrading
  - Downloading Flash Updates from the Web
    - How to Download Flash Upgrade Files
    - How to Perform a Flash Upgrade
3 CONNECTOR PINOUTS
- Connector Overview
- Connector Description
4 FRONT PANEL OPERATION
- Front Panel
- LED Indicators
- Front Panel Keypad
- Menu System
  - REVISION EMULATION
- Menu Tree
- OPENING SCREEN
- SDM-300L Custom Modem Defaults
5 MODEM TYPE
- Modem Type
- 5.2IDR Operation
- IBS Operation
  - 309 IBS Operation
  - VSAT IBS Operation
- D&I Operation
- ASYNC/AUPC Operation
  - AUPC Operation (with Reed-Solomon)
- Closed Network Operation (Comtech EF Data)
- Custom Operation
- Reed-Solomon Modes
6 CLOCKING AND RX BUFFERING SETTINGS
- Clocking Options
  - EIA-232, EIA-422, or V.35 Master/Master
  - EIA-232, EIA-422, or V.35 Master/Slave
- IDR/IBS G.703 Master/Master
  - IDR/IBS G.703 Master/Slave
  - D&I G.703 Master/Master
- Buffering
  - Buffer Size
- Doppler
- Plesiochronous
- Asymmetrical Loop Timing
- Frame/Multiframe Length
7 FEC AND TURBO
- Introduction
- Coding
- Turbo Product Codec (Hardware Option)
- Uncoded Operation (No FEC)
8 SYSTEM CHECKOUT
- System Checkout
9 FAULT ISOLATION
- Fault Isolation
10 OPEN NETWORK OPERATIONS
- Introduction
- IBS
  - IBS Modem Defaults
- IDR
  - IDR Modem Defaults
- Drop & Insert (D&I)
- 2xADPCM Voice in 64 kbps IBS
11 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
12 G.703
- G.703
  - G.703 Specifications
13 FULLY ACCESSIBLE SYSTEM TOPOLOGY (FAST)
- FAST System Theory
  - Implementation
    - Activation Procedure
14 SPECIFICATIONS
- Specifications
- Specification Summary
- L-Band Modulator Specification Summary
- Demodulator Specification Summary
- L-Band Modulator Specifications
  - Digital Data Rate
  - Modulation and Encoding Types
  - Scrambling Types
  - Modulator Frequency Reference
  - Modulator Spurious Emissions
  - Modulator Phase Noise
  - Modulator IF Output Spectrum Shape
  - L-Band INMARSAT Spurious Emissions
  - Differential Encoder
  - BPSK Bit Ordering
  - Interleaver (Reed-Solomon Codec)
  - Modulator Transmit Frequency (IF)
  - Transmit Frequency Change Time
  - Modulator Transmit IF Output Switch
  - Modulator Transmit IF Power
  - Modulator Power Offset
  - Modulator I / Q Imbalance
  - Modulator Output Noise Floor
  - Modulator Spectrum Rotation
  - Modulator Output Return Loss
  - L-Band ODU Reference Signal
  - L-Band ODU Control and Monitor
  - Modulator Transmit IF Test Modes
  - L-Band ODU Supply Voltage
  - ODU DC Current Sense
- Encoding
  - BPSK Encoding
    - 15.6.1QPSK Encoding
  - OQPSK Encoding
  - 8-PSK Encoding
- L-Band Demodulator Specifications
  - Digital Data Rate
  - Demodulation and FEC Decoding Types
  - Descrambling Types
  - Differential Decoder
  - BPSK Bit Ordering
  - Deinterleaver (Reed-Solomon Codec)
  - Demodulator Spectrum Rotation
  - Receive Frequency
  - Input Overload
  - Demodulator Input Return Loss
  - LNB Prime Power
  - LNB Band Control
  - LNB Reference Signal
  - Receive Input Power (Composite)
  - Demodulator Input Shape
  - Receive Input Power (Desired Carrier)
  - Demodulator Channel Spacing/Adjacent Carrier Performance
- Bit Error Rate Performance
  - Performance With Noise, Viterbi Decoder, and Closed Network
  - Performance with Noise, Viterbi Decoder, and Reed-Solomon (Optional)
  - Performance With BPSK and {O}QPSK BER Performance
  - Performance with Noise Turbo Product Codec (Optional)
  - Performance With Noise, 1544 kbps Sequential Decoder and Reed Solomon(Optional)
  - Performance With Noise, 56 kbps Sequential Decoder (Optional)
  - Performance With Noise, 1544 kbps Sequential Decoder (Optional)
  - BER Threshold
- Acquisition Time
  - Receive Carrier Acquisition Range
  - Receive Carrier Reacquisition
  - AGC Output
  - Doppler Tracking Performance
- Interface Specifications
  - TX Clock Switching Due to Failure of Selected Clock
  - TX Clock Phase Adjustment
  - TX Data Phase Adjustment
  - Transmit Clock Source
  - Send Clock Timing Source
  - Doppler/Plesiochronous Buffer Clock Source
  - RX Clock Switching Due to Failure of Selected Clock
  - RX Clock Phase Adjustment
  - RX Clock Jitter
  - RX Data Phase Adjustment
  - Buffer Centering
  - Receive Doppler/Plesiochronous Buffer Size
  - Switch Faults
- Decoding
  - BPSK Decoding
  - QPSK Decoding
  - OQPSK Decoding (Optional)
  - 8-PSK Decoding
- Terrestrial Interface Types
  - EIA-232 Specification
  - V.35 Specification V.10, V.11 Specification, Circuit Supported
  - EIA-449/EIA-422 Mil-188-114A Specification
  - Optional G.703 with ASYNC (Requires optional Overhead Card)
- Asynchronous Overhead Specification (Optional)
  - Asynchronous Baud Rates
  - Asynchronous Overhead Data Format
  - Asynchronous Overhead Parameters
  - AUPC with Reed-Solomon Option
  - Turbo AUPC
- IBS (Optional with Overhead Card)
  - IBS Primary Data Interfaces
  - IBS Clock and Dejitter
  - IBS Framing
  - IBS Engineering Service Channel
  - IBS Scrambling
- Drop and Insert (Optional with Overhead Card)
  - D&I Primary Data Interfaces
  - D&I Framing
- IDR (Optional with Overhead Card)
  - IDR Primary Data Interfaces
  - IDR Framing
  - IDR Engineering Service Channel
  - Optional: Dual 32 Kpps ADPCM (2XASPCM Audio)
- System Specifications
  - Loopback Modes
  - Test Modes
  - Remote Control
  - Modem Remote Address
  - Monitored Signals
- Stored Faults
- Stored Configurations
- Interoperability Modes
15 BUC FSK COMMUNICATIONS
- Introduction
  - Transmission Interface
- Message Structure
  - Command Message Structure (IDU to ODU)
  - Response Message Structure (BUC to IDU)
- Power Class
A. REMOTE CONTROL OPERATION
- General
- Message Structure
- Configuration Commands/Responses
- Status Commands/Responses
- Stored Faults
B. BURST MODE MODULATOR OPERATION
- Theory of Operation
  - Burst Mode
- Specifications
- Burst Mode Specifications