Comtech EF Data SDM-650B Manuals

Comtech EF Data SDM-650B Manuals

Manuals and User Guides for Comtech EF Data SDM-650B. We have 1 Comtech EF Data SDM-650B manual available for free PDF download: Installation And Operation Manual

Comtech EF Data SDM-650B Installation And Operation Manual

Comtech EF Data SDM-650B Installation And Operation Manual (348 pages)

Satellite Modem

Brand: Comtech EF Data | Category: Modem | Size: 4 MB

Table of Contents

Table of Contents

11
- Limitations of Warranty
  4
- About this Manual
  5
- Related Documents
  7
- Customer Support
  9
Figures

22
- Chapter 1. Introduction
  
  25
- Chapter 2. Installation
  
  37
  - Unpacking
    37
  - External Connections
    38
  - Figure 2-1. SDM-650B Rear Panel View
    38
  - Table 2-1. Rear Panel Connectors
    38
    
    Data I/O
    39
    
    Fault (J7)
    39
    
    Remote (J6)
    39
    
    AC Power
    40
    
    IF Input (CP2)
    40
    
    IF Output (CP1)
    40
    
    Ground
    41
  - System Requirements
    41
  - System Installation
    42
- Chapter 3. Configuration
  
  43
  - Monitor and Control
    43
    
    Description of Options
    44
    
    Figure 3-1. M&C Card
    44
    
    Remote Interface
    44
    
    Remote Baud Rate
    45
    
    Battery
    46
    
    Remote Address
    46
    
    Demodulator/Decoder Defaults
    47
    
    Modulator/Coder Defaults
    47
    
    Utility Defaults
    47
    
    M&C Theory of Operation
    48
    
    Remote Interface Specification
    48
  - Digital Interfaces
    49
    
    And MIL-STD-188-114 Interface
    49
    
    Figure 3-2. RS-422 and MIL-STD-188-114 Interface Board
    49
    
    Functional Description
    49
    
    Figure 3-3. RS-422 and MIL-STD-188-114 Block Diagram
    50
    
    Table 3-1. AS/0627-3 Rev. E Board Jumper Selection
    53
    
    Connector Pinouts
    54
    
    Specification
    55
    
    Figure 3-4. V.35 Interface Card
    56
    
    Functional Description
    56
    
    Interface
    56
    
    Figure 3-5. V.35 Interface Block Diagram
    57
    
    Table 3-2. AS/0627-2 Rev. E Board Jumper Selection
    59
    
    Connector Pinouts
    60
    
    Specification
    61
    
    Figure 3-6. DS-1 Interface Card
    62
    
    Functional Description
    62
    
    Interface
    62
    
    Figure 3-7. DS-1 Interface Block Diagram
    63
    
    Table 3-3. Equalizer Control
    64
    
    Connector Pinouts
    65
    
    Specification
    65
    
    Figure 3-8. G.703 2048 Kbit/S Interface Card
    66
    
    Functional Description
    66
    
    G.703, 2048 Kbit/S Interface
    66
    
    Figure 3-9. G.703 2048 Interface Block Diagram
    67
    
    Optional EXT CLK
    68
    
    Table 3-4. G.703, 2048 Kbit/S Interface Switch Configurations
    68
    
    Connector Pinouts
    69
    
    Switch Configuration for G.703 2048 Kbit/S Interface
    69
    
    2048 Kbit/S Connector Board Option
    70
    
    Figure 3-10. G.703 2048 Kbit/S Interface Connector Board (Optional)
    70
    
    Figure 3-11. G.703 2048 Kbit/S Connector Board Schematic Diagram
    71
    
    Table 3-5. G.703 2048 Kbit/S Interface Connector Jumpers
    71
    
    External Reference (J3)
    72
    
    Receive Data (J5)
    72
    
    Send Data (J4)
    72
    
    Asynchronous Overhead Interface
    73
    
    Functional Description
    73
    
    Specification
    73
    
    Figure 3-12. Asynchronous Overhead Interface Block Diagram
    74
    
    Terrestrial Interface
    74
    
    Figure 3-13. Asynchronous Overhead Jumpers
    75
    
    Table 3-6. Asynchronous Overhead Jumper Table
    76
    
    Table 3-7. Data Rate Jumper Table
    76
    
    Demultiplexer
    77
    
    Multiplexer
    77
    
    Plesiochronous Buffer
    78
    
    Remote Interface Specification
    78
    
    Interface Connector Pinouts
    79
    
    Asynchronous Interface Specifications
    80
    
    Asynchronous Breakout Panel
    81
  - Doppler Buffer
    82
  - Table 3-8. Jumper Selections
    83
  - Table 3-9. INTELSAT Delay Variations
    83
  - Figure 3-14. AS/3812 Doppler Buffer Daughter Card
    85
    
    Buffer Setup
    86
    
    Figure 3-15. Clock Slip Diagram
    87
    
    Buffer Size
    88
    
    Doppler
    88
    
    Frame/Multiframe Length
    89
    
    Plesiochronous
    89
    
    Converting
    90
    
    Total Buffer Length
    90
  - Doppler Buffer Specification
    91
  - I/O Connectors
    91
  - Interface Clocking Options
    92
    
    Master/Slave
    92
    
    Figure 3-16. RS-422 or V.35 Master Slave Configuration
    93
    
    Modem Settings (Master)
    94
    
    Modem Settings (Slave)
    94
    
    Figure 3-17. G.703 Master Slave Configuration
    95
    
    Master/Slave G.703
    95
    
    Figure 3-18. X.21 Master/Slave Configuration
    96
    
    Master/Slave X.21
    96
    
    Modem Settings (Master)
    96
    
    Modem Settings (Slave)
    96
    
    Figure 3-19. G.703 Master Slave Configuration
    97
    
    Master/Slave External Station Clock
    97
    
    Modem Settings (Master)
    97
    
    Modem Settings (Slave)
    97
    
    Figure 3-20. Master/Master Customer Clock Configuration
    98
    
    Master/Master
    98
    
    Master/Master (Customer Clock)
    98
    
    Modem Settings (Master)
    99
    
    Figure 3-21. Master/Master Station Clock Configuration Diagram
    100
    
    Master/Master (Station Clock)
    100
    
    Modem Settings (Master)
    101
- Chapter 4. Operation
  
  103
  - Front Panel
    104
  - Figure 4-1. SDM-650B Front Panel View
    104
    
    Controls
    105
    
    LED Indicators
    105
    
    Menus and Options Overview
    106
    
    Table 4-1. Main Front Panel Menu (Standard)
    106
    
    Table 4-2. Select Configuration Menu
    107
    
    Table 4-3. Select Monitor Menu
    108
    
    Table 4-4. Select Faults Menu
    108
    
    Table 4-5. Select Stored Faults (Stfaults) Menu
    109
    
    Table 4-6. Select Utility Menu
    110
    
    Menu Explanations
    111
    
    Select Configuration
    111
    
    Select Monitor
    117
    
    Select Faults
    118
    
    Common Equipment Faults (Ceq_Flts)
    119
    
    Demodulator/Decoder Faults (Dmd_Flts)
    119
    
    Modulator Faults (Mod_Flts)
    119
    
    Select Stored Faults (Stfaults)
    120
    
    Select Utility
    121
- Chapter 5. Theory of Operation
  
  125
  - Modulator
    125
  - Figure 5-1. Modulator Block Diagram
    126
    
    Specifications
    127
    
    Figure 5-2. Modulator Output Spectral Occupancy
    128
    
    Theory of Operation
    129
  - Sequential Decoder/Demodulator Processor
    131
  - Figure 5-3. Decoder Block Diagram
    131
    
    Specification
    132
    
    Demodulator Processor
    133
    
    Theory of Operation
    133
    
    Sequential Decoder
    134
    
    Sequential Decoder BER Performance Specifications
    136
    
    Figure 5-4. Sequential Decoder BER Performance Curves (1/2 Rate)
    137
    
    Figure 5-5. Sequential Decoder BER Performance Curves (3/4 Rate)
    138
    
    Figure 5-6. Sequential Decoder BER Performance Curves (7/8 Rate)
    139
  - Demodulator
    140
  - Figure 5-7. Demodulator Block Diagram
    140
    
    Specifications
    141
    
    Theory of Operation
    141
  - Reacquisition, Fast Acquisition, and Directed Sweep
    142
    
    Reacquisition
    142
    
    Fast Acquisition
    143
    
    Directed Sweep
    144
- Chapter 6. Maintenance
  
  145
- Appendix A. Data Rates and Filters
  
  167
  - Fixed Rate Filters
    167
    
    Data Rate Change Instructions
    167
    
    Figure A-1. Modulator Filter Card Change
    168
    
    Figure A-2. Demodulator Filter Card Change
    170
    
    Hardware Configuration
    171
  - Variable Rate Filters
    172
    
    Data Rate Change Instructions
    172
    
    Hardware Configuration
    173
    
    Utility
    175
- Appendix B. Remote Control Operation
  
  177
  - Standard Version
    177
    
    General
    178
    
    Message Structure
    178
    
    Start Character
    178
    
    Device Address
    179
    
    Command/Response
    180
    
    End Character
    180
    
    Configuration Commands/Responses
    181
    
    Set Demodulator Frequency
    181
    
    Set Modulator Frequency
    181
    
    Set RF Output
    181
    
    Set Modulator Output Power Level
    182
    
    Set Modulator Power Offset
    182
    
    Modulator Filter Rate Assignment
    183
    
    Modulator Rate
    183
    
    Select Modulator Rate
    184
    
    Select Modulator Rate Variable
    184
    
    Demodulator Filter Rate Assignment
    185
    
    Demodulator Rate
    185
    
    Descrambler Enable
    186
    
    Scrambler Enable
    186
    
    Select Demodulator Rate
    186
    
    Select Demodulator Rate Variable
    186
    
    Baseband Loopback
    187
    
    Differential Encoder Enable
    187
    
    Receive Clock
    187
    
    Transmit Clock
    187
    
    IF Loopback
    188
    
    RF Loopback
    188
    
    Time of Day
    188
    
    BER Threshold
    189
    
    Clear Stored Faults
    189
    
    Date
    189
    
    Fast Acquisition Mode
    190
    
    Sweep Reacquisition
    190
    
    Sweep Center Frequency
    191
    
    Sweep Width Range
    191
    
    Buffer Control Mode
    192
    
    Modem Operation Mode
    192
    
    Sweep Direction
    192
    
    Buffer Clock
    193
    
    Interface Buffer Center
    193
    
    Interface Buffer Size
    193
    
    Configuration
    194
    
    Modulator/Coder Program
    194
    
    Modulator/Coder Status
    194
    
    Status Commands/Responses
    194
    
    Demodulator/Decoder Configuration Status
    195
    
    Demodulator/Decoder Configuration Program
    196
    
    Modem Faults Status (Summary
    196
    
    Demodulator Status
    197
    
    Modulator Status
    197
    
    Common Equipment Status
    198
    
    Interface Receive Side Status
    198
    
    BER Status
    199
    
    Corrected BER
    199
    
    Raw BER
    199
    
    Demodulator Rate Status
    200
    
    E /N Status
    200
    
    Modulator Rate Status
    200
    
    Current Sweep Value
    201
    
    Receive Signal Level Status
    201
    
    Demodulator Stored Faults
    202
    
    Modulator Stored Faults
    202
    
    Stored Faults
    202
    
    Common Equipment Stored Faults
    203
    
    Interface Receive Side Status Stored Faults
    203
    
    Bulk Consolidated Status
    204
    
    Bulk Consolidated Analog Status
    206
    
    Bulk Consolidated Status Faults
    206
    
    Change Status
    207
    
    Equipment Type
    208
  - Asynchronous Overhead Interface Support Option
    209
    
    General
    209
    
    Message Structure
    209
    
    Device Address
    210
    
    Start Character
    210
    
    Command/Response
    211
    
    End Character
    211
    
    Modulator Configuration Commands
    212
    
    Set Modulator Frequency
    212
    
    Set Modulator Power Offset
    212
    
    Set RF Output
    212
    
    Set Modulator Output Power Level
    213
    
    Modulator Filter Rate Assignment
    214
    
    Modulator Rate
    214
    
    Scrambler Enable
    215
    
    Select Modulator Rate
    215
    
    Select Modulator Rate Variable
    215
    
    Demodulator Configuration Commands
    216
    
    Demodulator Rate
    216
    
    Differential Encoder Enable
    216
    
    Set Demodulator Frequency
    216
    
    Demodulator Filter Rate Assignment
    217
    
    Select Demodulator Rate
    217
    
    Select Demodulator Rate Variable
    217
    
    BER Threshold
    218
    
    Descramble Enable
    218
    
    IF Loopback
    218
    
    RF Loopback
    218
    
    Fast Acquisition Mode
    219
    
    Sweep Reacquisition
    219
    
    Sweep Center Frequency
    220
    
    Sweep Width Range
    220
    
    Buffer Clock
    221
    
    Interface Configuration Commands
    221
    
    Sweep Direction
    221
    
    Transmit Clock
    221
    
    Baseband Loopback
    222
    
    External Reference Frequency
    222
    
    Interface Loopback
    222
    
    Receive Clock
    222
    
    Interface Buffer Center
    223
    
    Interface Buffer Size
    223
    
    Interface Coding Format Receive
    223
    
    Interface Coding Format Transmit
    223
    
    Overhead Channels Character Length
    224
    
    Overhead Channels Stop Bits
    224
    
    Receive Overhead Baud Rate
    224
    
    Transmit Overhead Baud Rate
    224
    
    Interface Substitution Pattern (Transmit 2047 Pattern
    225
    
    Overhead Channels Parity
    225
    
    System Commands/Responses
    225
    
    Time of Day
    225
    
    Clear Stored Faults
    226
    
    Date
    226
    
    Remote
    226
    
    Automatic Uplink Power Control (AUPC) Configuration Commands
    227
    
    Local AUPC Enable
    227
    
    Local Modem AUPC Commands
    227
    
    Modem Operation Mode
    227
    
    Nominal AUPC Power Level
    227
    
    E /N Target AUPC Set Point
    228
    
    Maximum AUPC Power Limit
    228
    
    Maximum AUPC Tracking Rate
    228
    
    Minimum AUPC Power Limit
    228
    
    AUPC Local Carrier Loss Action
    229
    
    AUPC Remote Carrier Loss Action
    229
    
    Remote AUPC Enable
    229
    
    Remote Modem AUPC Commands
    229
    
    Remote Interface Baseband Loopback
    230
    
    Remote Interface Read Error Status (Received 2047 Pattern
    230
    
    Remote Interface Substitution Pattern (Transmit 2047 Pattern
    230
    
    Configuration Status
    231
    
    Modulator/Coder Configuration Status
    231
    
    Status Commands/Responses
    231
    
    Modulator/Coder Configuration Program
    232
    
    Demodulator/Decoder Configuration Status
    233
    
    Demodulator/Decoder Configuration Program
    234
    
    AUPC Configuration Status
    235
    
    Interface Configuration Status
    235
    
    Demodulator Status
    236
    
    Modem Faults Status (Summary
    236
    
    Modulator Status
    236
    
    Common Equipment Status
    237
    
    Interface Receive Side Status
    237
    
    Interface Transmit Side Status
    237
    
    Bit Error Rate Status
    238
    
    Corrected BER
    238
    
    Raw BER
    238
    
    Demodulator Rate
    239
    
    Modulator Rate
    239
    
    Current Sweep Value
    240
    
    Interface Buffer Fill Status
    240
    
    Interface Read Error Status
    240
    
    Receive Signal Level
    240
    
    Demodulator Stored Faults
    241
    
    Modulator Stored Faults
    241
    
    Stored Faults
    241
    
    Common Equipment Stored Faults
    242
    
    Interface Receive Side Stored Faults
    242
    
    Interface Transmit Side Stored Faults
    242
    
    Bulk Consolidated Status
    243
    
    Bulk Consolidated Analog Status
    245
    
    Bulk Consolidated Status Faults
    246
    
    Bulk Consolidated Status AUPC
    248
- Appendix C. Field Compatibility
  
  249
  - Figure 1-1. SDM-650B
    249
  - SDM-650B Standard Modem
    249
  - SDM-650B Aydin Data Rate Modem
    250
  - SDM-650B Comstream Modem
    250
  - SDM-650B Fairchild-Compatible Modem
    250
- Appendix D. Software Change Instructions
  
  251
  - Table D-1. Efdata M&C Viterbi Decoder Firmware
    252
- Appendix E. Agc Interface
  
  253
  - Connector Pinouts
    254
  - Installation Instructions
    254
    
    Parts Required
    254
    
    Installation Procedure
    255
- Appendix F. Asynchronous Overhead Channel Unit
  
  259
  - Functional Description of ASYNC Overhead Channel Unit
    260
    
    Terrestrial Interface
    260
    
    Receive Section
    261
    
    Transmit Section
    261
  - Table F-1. Asynchronous Overhead Jumpers
    263
  - Table F-2. Data Rate Jumpers
    263
    
    Demultiplexer
    264
    
    Multiplexer
    264
    
    Plesiochronous Buffer
    265
  - ASYNC Interface Connector Pinouts
    266
  - ASYNC Interface Specifications
    267
  - Functional Description of ASYNC Overhead Channel Unit with AUPC
    268
    
    Aupc
    268
    
    Modem-To-Modem Channel for Remote M&C
    269
  - Front Panel Operation
    270
    
    Menus and Options Overview
    271
  - Table F-3. Main Front Panel Menu with Asynchronous Overhead (with AUPC
    271
  - Table F-4. Select Configuration Modulator Menu (with AUPC
    271
  - Table F-5. Select Configuration Demodulator Menu (with AUPC
    272
  - Table F-6. Select Configuration Interface Menu (with AUPC
    273
  - Table F-7. Select Configuration AUPC Menu (with AUPC
    274
  - Table F-8. Select Monitor Menu (with AUPC
    274
  - Table F-9. Select Faults Menu (with AUPC
    275
  - Table F-10. Select Stored Faults (Stfaults) Menu (with AUPC
    276
  - Table F-11. Select Remote Menu (with AUPC
    276
  - Table F-12. Select Utility Menu (with AUPC
    277
    
    Menu Explanations
    278
    
    Select Configuration
    278
    
    Configuration Modulator
    279
    
    Configuration Demodulator
    281
    
    Configuration Interface
    283
    
    Configuration AUPC
    286
    
    Select Monitor
    287
    
    Select Faults
    288
  - Table G-1. Main Front Panel Menu (Trojan Interface
    305
  - Table G-2. Select Configuration Modulator Menu
    306
  - Table G-3. Select Configuration Demodulator Menu
    306
  - Table G-4. Select Configuration Interface Menu
    307
  - Table G-5. Select Monitor Menu
    307
  - Table G-6. Select Faults (Stfaults) Menu
    308
  - Table G-7. Select Stfaults Menu
    309
  - Table G-8. Select Utility Menu
    309
  - Metric Conversions
    347

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