Comtech EF Data CDM-Qx Manuals

Manuals and User Guides for Comtech EF Data CDM-Qx. We have 2 Comtech EF Data CDM-Qx manuals available for free PDF download: Installation And Operation Manual

Comtech EF Data CDM-Qx Installation And Operation Manual (260 pages)

Multi-Channel Satellite Modem with DoubleTalk Carrier-in-Carrier

Brand: Comtech EF Data | Category: Modem | Size: 4.57 MB

Installation and Operation Manual
1
Table of Contents
5
Table of Contents

6
Preface

17
About this Manual

17
- Reporting Comments or Suggestions Concerning this Manual
  17
Conventions and References

17
- Trademarks
  18
Electrical Safety

18
- Fuses
  18
- Environmental
  19
- Installation
  19
EMC (Electromagnetic Compatibility)

20
Warranty Policy

22
- Limitations of Warranty
  22
- Exclusive Remedies
  23
Customer Support

24
- Online Customer Support
  24
Chapter 1. Introduction

25
Overview

25
Functional Description

27
- Figure 1-2. CDM-Qx/Qxl Open Network Satellite Modem Block Diagrams
  28
Features

29
- Physical Description
  29
- Compatibility
  29
- Major Assemblies
  29
- Dimensional Envelope
  30
- Physical Features
  30
- Hardware Options
  32
- Data Interfaces
  33
- Verification
  33
- Aupc
  33
- 1.3.10 Edmac
  34
- 1.3.11 Flash Upgrading Modem Firmware
  34
- Fully Accessible System Topology (FAST)
  35
- 1.3.13 Supporting Hardware and Software
  36
- Table 1-2. FAST and FAST-Accessible Hardware Options
  36
New in this Release

37
- CDM-Qx/Qxl Firmware Release Notes
  37
Summary of Specifications

38
- Modulator
  38
- Demodulator
  39
- Figure 1-6. Power Spectral Density Chart
  39
- Data Interfaces
  42
- Automatic Uplink Power Control
  42
- Data Rate Ranges
  43
- Framing Summary (Future)
  43
- Miscellaneous
  44
- Approvals
  44
Chapter 2. Installation

45
Unpacking

45
Mounting

46
Configuration

48
- Figure 2-2. Installation of Optional Side-Railings (FP/SL0006)
  48
Select Internal if Loop

49
Connect External Cables

49
Connector Overview

51
- Figure 3-1. CDM-Qx/Qxl Rear Panel Configuration Examples
  51
- Table 3-1. Rear Panel External Connections
  53
Chapter 3. Rear Panel Connectors

51
Base Chassis Connections

54
- Power Connector
  54
  - AC Power Connector
    54
  - DC Power Supply (CDM-Qxl, Optional)
    54
- Ground Connector
  54
- M&C 10/100Baset Connector
  55
- 485/232 Connector
  55
- Tx and Rx if Connectors
  55
- Ext Ref Connector
  55
- Table 3-2. 485/232 (Remote Control) Connector Pin Assignments
  55
Data Interface Connectors

56
Chapter 4. Flash Upgrading

63
Flash Updating Via Internet

63
- Figure 4-1. Flash Update Via Internet
  63
Ethernet FTP Upload Procedure

64
Chapter 5. Front Panel Operation

67
Front Panel Overview

67
- USB Port
  67
- Figure 5-1. CDM-Qx/Qxl - Front Panel View
  67
- LED Indicators
  68
- Keypad
  69
- Figure 5-2. CDM-Qx/Qxl Keypad
  69
- Front Panel Vacuum Fluorescent Display (VFD)
  70
  - VFD - Left-Hand Display Area
    70
    
    5.1.4.1.1 Modems
    71
    
    5.1.4.1.2 Redundancy
    71
    
    5.1.4.1.3 Spectrum Analyzer
    72
  - VFD - Right-Hand Display Area
    72
Front Panel Operation - Opening Screen

72
- Table 5-1. Prinicpal Menu Tree
  73
MAIN MENU Screen

74
MAIN MENU:) Config (Configuration)

75
- CONFIG: Remote
  76
  - CONFIG: Remote Local
    76
  - CONFIG: Remote Serial
    76
  - Snmp Communities
    77
  - CONFIG: Remote Ethernet
    78
- CONFIG: Tx (Transmit)
  79
  - CONFIG: Tx FEC
    80
  - CONFIG: Tx Mod
    80
  - CONFIG: Tx Code
    81
  - CONFIG: Tx Data
    81
  - CONFIG: Tx PWR
    84
  - CONFIG: Tx Scram
    85
  - CONFIG: Tx Clk
    85
  - CONFIG: Tx Inv
    86
  - CONFIG: Tx Txα
    86
- CONFIG: Rx (Receive)
  87
  - CONFIG: Rx FEC
    88
  - CONFIG: Rx Demod
    88
  - CONFIG: Rx Code
    89
  - CONFIG: Rx Data
    89
  - CONFIG: Rx Acq
    89
  - CONFIG: Rx Buf
    89
  - CONFIG: Rx Inv
    93
  - CONFIG: Rx Misc
    93
  - CONFIG: Rx
    93
  - Cnc (CARRIER-IN-CARRIER ® )
    94
  - CONFIG: Group Modem
    95
  - CONFIG: Group Redundancy
    95
- CONFIG: Frame
  98
  - Edmac, Edmac-2
    98
  - CONFIG: Frame D&I
    98
- CONFIG: Interface
  99
  - Rs422, V.35, Rs232
    99
  - CONFIG: Interface HSSI
    99
  - CONFIG: Interface G.703
    100
  - CONFIG: Interface QDI
    102
- CONFIG: Ref
  102
- CONFIG: Mask
  103
  - CONFIG: Mask Transmit
    103
  - CONFIG: Mask Receive
    103
  - CONFIG: Mask Reference
    104
  - CONFIG: Mask BUC (CDM-Qxl Only)
    104
- Config: Odu
  105
  - Config: Odu Buc
    106
  - Buc lo Frequency
    106
  - Config: Odu Lnb
    107
  - Lnb lo Frequency
    108
MAIN MENU:) Monitor

109
- MONITOR: Alarms
  109
  - Odu
    110
- MONITOR: Rx-Params
  110
- MONITOR: Event-Log
  110
  - MONITOR: Event-Log View
    111
  - MONITOR: Event-Log Clear-All
    111
- MONITOR: Stats
  112
  - MONITOR: Stats View
    112
  - MONITOR: Stats Clear-All
    113
- Monitor: Aupc
  113
- MONITOR: Cnc
  114
  - MONITOR: Cnc (Carrier-In-Carrier )
    114
- Monitor: Odu
  115
  - Monitor: Odu Buc
    115
  - Monitor: Odu Lnb
    115
MAIN MENU:) Test

116
- TEST: Mode
  116
- Test: bist
  117
  - TEST: bist BERT-Config
    117
  - Figure 5-3. Loopback
    117
- TEST: Spec-Analyzer
  118
MAIN MENU:) Info (Information)

119
- INFO: Rem
  119
- INFO: Tx
  120
- INFO: Rx
  121
- INFO: Buffer
  121
- INFO: Frame
  122
- INFO: Interface
  122
- INFO: Mask
  122
- INFO: Ref
  122
- Info: ID
  122
MAIN MENU:) Save/Load

123
- Info: Save/Load Info: Save/Load
  123
MAIN MENU:) Utility

124
- UTILITY: Rxbuffer
  124
- UTILITY: Clock
  124
- UTILITY: Ref
  125
- Utility: ID
  125
- UTILITY: Display
  125
- UTILITY: Firmware
  126
  - UTILITY: Firmware Information
    126
  - UTILITY: Firmware Select
    127
- Utility: Fast
  128
Chapter 6. Ethernet Management

131
Introduction

131
Ethernet Management Interface Protocols

131
SNMP Interface

131
- 6.3.1 Management Information Base (MIB) Files
  132
- 6.3.2 SNMP Community Strings
  132
- 6.3.3 SNMP Traps
  132
Telnet Interface

134
Web Server (HTTP) Interface

136
Chapter 7 . Forward Error Correction Options

167
Viterbi

167
- Table 6-1. Viterbi Decoding Summary
  168
- Table 6-2. Concatenated Reed-Solomon Coding Summary
  169
Turbo Product Codec (Hardware Option)

170
Chapter 8. Automatic Uplink Power Control (Aupc)

183
Introduction

183
Setting AUPC Parameters

183
- AUPC Target E
  184
- 8.2.2 AUPC Max Range
  184
  - AUPC Target E B /N
    184
- 8.2.3 AUPC Alarm
  184
- 8.2.4 Demod Unlock
  184
Compensation Rate

185
Monitoring

185
- CDM-Qx/Qxl Multi-Channel Satellite Modem with Doubletalk™ Carrier-In-Carrier® Revision
  186
What Is Doubletalk Carrier-In-Carrier

187
Application Requirements

187
- Figure 9-1. Traditional FDMA System (Without Cnc)
  188
- Figure 9-2. same System Using CDM-Qx/Qxl and Doubletalk Carrier-In-Carrier
  188
Chapter 9. Doubletalk Carrier-In-Carrier (Cnc)

187
System Functionality

188
Cnc Performance Characterization

190
Chapter 10. Edmac Channel

201
10.1 Theory of Operation

201
10.2 M&C Connection

202
10.3 Setup Summary

203
Chapter 11. Redundancy

205
- Figure 11-1. CDM-Qx/Qxl Chassis Rear Panel Schematic
  205
Appendix A. Cable Drawings

207
A.1 Introduction

207
Appendix B. Fast Activation Procedure

213
Introduction

213
Activation Procedure

213
Appendix C. Remote Control

219
Overview

219
Basic Protocol

220
Packet Structure

220
- Start of Packet
  221
- Target Address
  221
- Address Delimiter
  221
- Instruction Code
  221
- Instruction Code Qualifier
  221
- Optional Message Arguments
  223
- End of Packet
  223
Remote Commands and Queries

223

Comtech EF Data CDM-Qx Installation And Operation Manual (224 pages)

Multi-Channel Satellite Modem with DoubleTalk Carrier-in-Carrier

Brand: Comtech EF Data | Category: Modem | Size: 5.27 MB

Preface

13
- Installation and Operation Manual
  1
- Table of Contents
  5
Customer Support

13
About this Manual

14
- Reporting Comments or Suggestions Concerning this Manual
  14
Conventions and References

14
- Metric Conversion
  14
- Cautions and Warnings
  14
Electrical Safety

15
- Fuses
  15
- Environmental
  15
- Installation
  15
Telecommunications Terminal Equipment Directive

16
CE Mark

16
Trademarks

16
Warranty Policy

17
- Limitations of Warranty
  17
- Exclusive Remedies
  18
Chapter 1. Introduction

19
Introduction

19
- Figure 1-1. CDM-Qx/Qxl
  19
Features

20
- Doubletalk™ Carrier-In-Carrier
  20
- Software - Flash Upgrading
  21
- Verification
  21
- Data Interfaces
  21
- Turbo Product Coding
  21
- Remote Control
  22
FAST Options and Hardware Options

22
- FAST Accessible Options
  23
- FAST System Theory
  23
- Implementation
  24
- Hardware Options
  24
- Supporting Hardware and Software
  24
Major Assemblies

22
L-Band

25
Compatibility

25
Chapter 2. Installation

27
Unpacking

27
Mounting

28
- Optional Rear-Mounting Support Brackets
  28
Configuration

29
- Figure 2-1. Installation of the Optional Rear-Mounting Support Brackets
  29
Select Internal if Loop

30
Connect External Cables

30
Chapter 3. Functional Description

31
- Figure 3-1. Modem Functional Block Diagram
  33
Chapter 4. External Connections

35
Introduction

35
Front Panel

35
- Figure 4-1. Front Panel
  35
Rear Panel

37
- Figure 4-2. Rear Panel
  37
- Table 4-1. Modem Rear Panel Connectors
  38
Chassis Connections

40
AC Power Connector

48
DC Power Connector

48
Ground Connector

48
Chapter 5. Front Panel Operation

49
Introduction

49
- Figure 5-1. Front Panel Operation
  49
- Table 5-1. Front Panel LED Indicators
  50
Keypad

51
Left-Hand Display Area

51
- Figure 5-2. Keypad
  51
  - Modems
    52
  - Redundancy
    52
  - Spectrum Analyzer
    53
Right-Hand Display Area

53
Accessing the Display Area

54
- Table 5-2. Prinicpal Menu Tree
  54
Opening Screen

55
Main Menu (Top-Level Selection)

55
- Config
  56
- Monitor
  92
- Test
  98
- Figure 5-3. Loopback
  100
- INFO (Information)
  102
- Save/Load
  105
  - Save/Load!Save) - SAVE CONFIGURATION
    106
  - Save/Load!Load) - LOAD CONFIGURATION
    106
- Utility
  107
- Utility!Fast) - FAST Code Options
  110
Chapter 6 . Forward Error Correction Options

113
Introduction

113
Viterbi

113
- Table 6-1. Viterbi Decoding Summary
  114
  - Reed-Solomon Outer Codec
    114
  - Closed Network Modes
    115
  - Table 6-2. Concatenated R-S Coding Summary
    115
Trellis Coding

116
- Table 6-3. 8-PSK/TCM Coding Summary
  116
Turbo Product Codec (Hardware Option)

117
Chapter 7. Edmac Channel

129
Theory of Operation

129
M&C Connection

130
Setup Summary

131
Chapter 8. Automatic Uplink Power Control

133
Introduction

133
Setting AUPC Parameters

134
- Target Eb/No
  134
- Max Range
  134
- Alarm
  135
- Demod Unlock
  135
Compensation Rate

135
Monitoring

136
Chapter 9. Doubletalk™ Carrier-In-Carrier Operation

137
- Figure 9-1. Transponder Utilization with and Without Cnc
  139
Chapter 10. Redundancy

141
Chapter 11. Ethernet Management

143
Introduction

143
Ethernet Management Interface Protocols

143
Web Server (HTTP) Interface

144
- Web Server Menu Tree
  145
- Table 11-1. Web Server Menu Tree
  145
SNMP Interface

150
- Management Information Base (MIB) Files
  150
- SNMP Community Strings
  151
- SNMP Traps
  151
Telnet Interface

152
- A.1 Modulator
  155
Appendix A. Summary of Specifications

156
Modulator

156
- Figure A-1. Power Spectral Density Chart
  156
Demodulator

157
- A.2 Demodulator
  157
Data Interfaces

160
Automatic Uplink Power Control (Future

160
- A.3 Data Interfaces
  160
Data Rate Ranges

161
Framing Summary (Future

161
Miscellaneous

162
- A.7 Miscellaneous
  162
Appendix B. Flash Upgrading

163
Ethernet FTP Upload Procedure

163
Appendix C. Remote Control

167
Basic Protocol

168
- C.2 Rs-232
  168
Packet Structure

169
- Start of Packet
  169
- Address
  169
- C.4 Packet Structure
  169
- Instruction Code
  170
- Instruction Code Qualifier
  170
- C.4.3 Instruction Code
  170
- Message Arguments
  172
- End of Packet
  172
Remote Commands

172
- C.4.5 Message Arguments
  172
- C.5.1 TX Remote Commands
  175
- TX Remote Commands
  175
- C.5.2 RX Remote Commands
  178
- RX Remote Commands
  178
- Common Remote Commands for Tx or Rx or Modem
  182
- C.5.4 Query Commands
  191
- Query Commands
  191
- Bulk Commands
  200
- C.5.5 Bulk Commands
  200
- BUC Commands
  202
  - C.5.6 BUC Commands
    202
  - C.5.7 LNB Commands
    204
- LNB Commands
  204
- Built-In BERT Commands (BER Tester
  206
- Spectrum Analyzer Commands
  207
- Drop & Insert Commands (E1 CCS Only) for D&I
  208
Appendix D. Carrier-In-Carrier Performance Characterization

209
Carrier-In-Carrier Description

209
Degradation Due to Carrier Spacing

210
- Figure D-2. QPSK 3/4 Turbo Degradation Versus Relative Carrier Spacing
  212
Selecting the Adjacent Carrier Curve

213
Carrier-In-Carrier Ratio (Cnc Ratio

214
- Figure D-6. Cnc Ratio
  214
- Figure D-7. Cnc Ratio for QPSK and 8-PSK
  215
Symbol Rate Ratio

216
Cnc Carrier Offset

216
Cnc Example: Adjacent Carriers, Cnc Ratio and Rain Fade

216
Rd Cnc Example: Asymmetric Link with Rain Fade

221
Conclusion

222
- D.10 Conclusion
  222
- Metric Conversions
  223

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Comtech EF Data CDM-Qx Manuals

Comtech EF Data CDM-Qx Installation And Operation Manual (260 pages)

Table of Contents

Table of Contents

Preface

About this Manual

Conventions and References

Electrical Safety

EMC (Electromagnetic Compatibility)

Warranty Policy

Customer Support

Chapter 1. Introduction

Overview

Functional Description

Features

New in this Release

Summary of Specifications

Chapter 2. Installation

Unpacking

Mounting

Configuration

Select Internal if Loop

Connect External Cables

Connector Overview

Chapter 3. Rear Panel Connectors

Base Chassis Connections

Data Interface Connectors

Chapter 4. Flash Upgrading

Flash Updating Via Internet

Ethernet FTP Upload Procedure

Chapter 5. Front Panel Operation

Front Panel Overview

Front Panel Operation - Opening Screen

MAIN MENU Screen

MAIN MENU:) Config (Configuration)

MAIN MENU:) Monitor

MAIN MENU:) Test

MAIN MENU:) Info (Information)

MAIN MENU:) Save/Load

MAIN MENU:) Utility

Chapter 6. Ethernet Management

Introduction

Ethernet Management Interface Protocols

SNMP Interface

Telnet Interface

Web Server (HTTP) Interface

Chapter 7 . Forward Error Correction Options

Viterbi

Turbo Product Codec (Hardware Option)

Chapter 8. Automatic Uplink Power Control (Aupc)

Introduction

Setting AUPC Parameters

Compensation Rate

Monitoring

What Is Doubletalk Carrier-In-Carrier

Application Requirements

Chapter 9. Doubletalk Carrier-In-Carrier (Cnc)

System Functionality

Cnc Performance Characterization

Chapter 10. Edmac Channel

10.1 Theory of Operation

10.2 M&C Connection

10.3 Setup Summary

Chapter 11. Redundancy

Appendix A. Cable Drawings

A.1 Introduction

Appendix B. Fast Activation Procedure

Introduction

Activation Procedure

Appendix C. Remote Control

Overview

Basic Protocol

Packet Structure

Remote Commands and Queries

Comtech EF Data CDM-Qx Installation And Operation Manual (224 pages)

Table of Contents

Preface

Customer Support

About this Manual

Conventions and References