Comtech EF Data CDM-Qx Specifications Page 90
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CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Revision 7
Front Panel Operation MN/CDMQX.IOM
5–24
Note the following:
FEC Type Modulation Code Rate Data Rate Range EDMAC limited?
Vit (Viterbi)
BPSK Rate 1/2 32 kb
p
s to 5 Mb
p
s
Yes – see
IMPORTANT
NOTE (below)
QPSK
Rate 1/2 32 kb
p
s to 10 Mb
p
s
Rate 3/4 32 kb
p
s to 15 Mb
p
s
Rate 7/8 32 kb
p
s to 17.5 Mb
p
s
Vit+RS (Viterbi
+Concatenated Reed-
Solomon)
BPSK Rate 1/2 32 kb
p
s to 4.5 Mb
p
s
Yes – see
IMPORTANT
NOTE (below)
QPSK
Rate 1/2 32 kb
p
s to 9.1 Mb
p
s
Rate 3/4 32 kb
p
s to 13.7 Mb
p
s
Rate 7/8 32 kb
p
s to 16 Mb
p
s
16-QAM
Rate 3/4 349.1 kb
p
s to 20 Mb
p
s
Rate 7/8 407.3 kb
p
s to 20 Mb
p
s
TCM+RS (Trellis Coded
Modulation +
Concatenated Reed-
Solomon)
8-PSK Rate 2/3 232.7 kbps to 18.3 Mbps
Yes – see
IMPORTANT
NOTE (below)
TPC (Turbo)
BPSK
Rate 5/16 32 kb
p
s to 3.1 Mb
p
s
Yes – see
IMPORTANT
NOTE (below)
Rate 21/44 32 kb
p
s to 4.7 Mb
p
s
QPSK
Rate 21/44 32 kb
p
s to 9.5 Mb
p
s
Rate 3/4 32 kb
p
s to 15 Mb
p
s
Rate 7/8 32 kb
p
s to 17.5 Mb
p
s
Rate 17/18 32 kb
p
s to 18.888 Mb
p
s
8-PSK
Rate 3/4 288 kb
p
s to 20 Mb
p
s
No
Rate 7/8 336 kb
p
s to 20 Mb
p
s
Rate 17/18 362.7 kb
p
s to 20 Mb
p
s
16-QAM
Rate 3/4 384 kb
p
s to 20 Mb
p
s
Rate 7/8 448 kb
p
s to 20 Mb
p
s
Important Note: Where noted in the table above, if EDMAC framing is employed, the upper
data rate will be reduced by 5% for data rates up to 2.048 Mbps, and by 1.6% for data rates
above 2.048 Mbps, where EDMAC2 framing is used, or for Rate 21/44 BPSK/QPSK Turbo, or
Rate 5/16 BPSK Turbo.
5.4.3.5 CONFIG: Rx Æ Freq
Rx IF Freq: 1156.3456 MHz
(◄ ►,▲ ▼,ENT)
For the Receive IF Frequency, the range of frequencies depends upon the plug-in module – the
preceeding example shows the L-Band version of modem. Edit the Transmit IF Frequency by
first using the
W X arrow keys to select the digit to be edited; the value of the digit is then
changed using the
ST arrow keys. Press ENTER when done.
When using the ODU Æ LNB menus, if the user has selected an LNB LO frequency other than
zero, and has defined whether the mix is high side or low side, the display will be modified as
shown below, to include the calculated Receive RF frequency of the modem/LNB combination:
Rx IF Freq: 1156.3456 MHz
RF=14156.3456 (◄ ►▲ ▼ ENT)
As the Rx IF frequency is edited, the RF frequency will automatically be updated.
- Table of Contents 5
- Figures 14
- 15
- PREFACE 17
- Cautions and Warnings 18
- Trademarks 18
- Electrical Safety 18
- Environmental 19
- Installation 19
- CE Mark 20
- RoHS Compliancy 20
- Warranty Policy 22
- Limitations of Warranty 22
- Exclusive Remedies 23
- Customer Support 24
- Online Customer Support 24
- Chapter 1. INTRODUCTION 25
- 1.1.3 Turbo Product Coding 26
- 1.2 Functional Description 27
- Introduction MN/CDMQx.IOM 28
- 1.3 Features 29
- 1.3.1 Physical Description 29
- 1.3.2 Compatibility 29
- 1.3.3 Major Assemblies 29
- 1.3.4 Dimensional Envelope 30
- 1.3.5 Physical Features 30
- 1.3.5.1 Front Panel 30
- 1.3.5.2 Rear Panel 31
- 1.3.6 Hardware Options 32
- 1.3.6.2 CDM-QxL L-Band 33
- 1.3.7 Data Interfaces 33
- 1.3.8 Verification 33
- 1.3.9 AUPC 33
- 1.3.10 EDMAC 34
- FAST System Theory 35
- FAST Implementation 35
- FAST Accessible Options 35
- Redundancy Applications 36
- 1.4 New in this Release 37
- 1.5.1 Modulator 38
- 1.5.2 Demodulator 39
- 1.5.3 Data Interfaces 42
- 1.5.5 Data Rate Ranges 43
- 1.5.7 Miscellaneous 44
- 1.5.8 Approvals 44
- Chapter 2. INSTALLATION 45
- 2.2 Mounting 46
- Installation MN/CDMQX.IOM 47
- 2.3 Configuration 48
- Chapter 3. REAR PANEL 51
- CONNECTORS 51
- 3.2.1 Power Connector 54
- 3.2.1.1 AC Power Connector 54
- 3.2.2 Ground Connector 54
- CA UTION 55
- HSSI Interface 60
- Chapter 4. FLASH UPGRADING 63
- Chapter 5. FRONT PANEL 67
- OPERATION 67
- 5.1.3 Keypad 69
- ENTER 70
- 5.1.4.1.1 Modems 71
- 5.1.4.1.2 Redundancy 71
- 5.1.4.1.3 Spectrum Analyzer 72
- 5.3 MAIN MENU Screen 74
- 5.4.2.1 CONFIG: Tx Æ FEC 80
- 5.4.2.2 CONFIG: Tx Æ Mod 80
- 5.4.2.3 CONFIG: Tx Æ Code 81
- 5.4.2.4 CONFIG: Tx Æ Data 81
- 5.4.2.5 CONFIG: Tx Æ Freq 82
- 5.4.2.8 CONFIG: Tx Æ Scram 85
- 5.4.2.9 CONFIG: Tx Æ Clk 85
- 5.4.2.10 CONFIG: Tx Æ Inv 86
- CONFIG: Tx Æ Inv Æ Spectrum 86
- CONFIG: Tx Æ Inv Æ Data 86
- CONFIG: Tx Æ Inv Æ Clock 86
- 5.4.2.11 CONFIG: Tx Æ Txα 86
- 5.4.3.1 CONFIG: Rx Æ FEC 88
- 5.4.3.2 CONFIG: Rx Æ Demod 88
- 5.4.3.3 CONFIG: Rx Æ Code 89
- 5.4.3.4 CONFIG: Rx Æ Data 89
- 5.4.3.5 CONFIG: Rx Æ Freq 90
- 5.4.3.6 CONFIG: Rx Æ Acq 91
- 5.4.3.8 CONFIG: Rx Æ Buf 92
- CONFIG: Rx Æ CnC Æ Mode 94
- CONFIG: Rx Æ CnC Æ FrqOffs 94
- CONFIG: Rx Æ CnC Æ SrchDelay 95
- CONFIG: Rx Æ CnC Æ ReAcq 95
- 5.4.4 CONFIG: Group 95
- 5.4.5 CONFIG: Frame 97
- Drp-CH/TS 98
- Displays the Tx Data Rate 98
- Ins-CH/TS 98
- Displays the Rx Data Rate 98
- 5.4.6 CONFIG: Interface 99
- 5.4.7 CONFIG: Ref 102
- 5.4.8 CONFIG: Mask 103
- CONFIG: Mask Æ Receive Æ AGC 103
- IMPORTANT 104
- CONFIG: ODU Æ BUC Æ DC-Pwr 105
- CONFIG: ODU Æ BUC Æ Mix 107
- 5.4.9.2 CONFIG: ODU Æ LNB 107
- CONFIG: ODU Æ LNB Æ 10MHz 107
- CONFIG: ODU Æ LNB Æ Alarm 107
- CONFIG: ODU Æ LNB Æ LO 108
- CONFIG: ODU Æ LNB Æ Mix 108
- 5.5.2 MONITOR: Rx-Params 110
- 5.5.3 MONITOR: Event-Log 110
- 5.5.4 MONITOR: Stats 112
- 5.6 (MAIN MENU:) Test 116
- 5.6.1 TEST: Mode 116
- IF LOOPBACK 117
- 5.6.3 TEST: Spec-Analyzer 118
- TEST: Spec-Analyzer Æ Mode 118
- TEST: Spec-Analyzer Æ Config 118
- TEST: Spec-Analyzer Æ Span 119
- 5.7.1 INFO: Rem 119
- 5.7.2 INFO: Tx 120
- 5.7.3 INFO: Rx 121
- 5.7.4 INFO: Buffer 121
- 5.7.5 INFO: Frame 122
- 5.7.6 INFO: Interface 122
- 5.7.7 INFO: Mask 122
- 5.7.8 INFO: Ref 122
- 5.7.9 INFO: ID 122
- 5.8 (MAIN MENU:) Save/Load 123
- 5.9 (MAIN MENU:) Utility 124
- 5.9.1 UTILITY: RxBuffer 124
- 5.9.2 UTILITY: Clock 124
- 5.9.3 UTILITY: Ref 125
- 5.9.4 UTILITY: ID 125
- 5.9.5 UTILITY: Display 125
- 5.9.6 UTILITY: Firmware 126
- 5.9.7 UTILITY: FAST 128
- UTILITY: FAST Æ Base 128
- UTILITY: FAST Æ Base Æ View 129
- UTILITY: FAST Æ Slot# 129
- Chapter 6. ETHERNET 131
- MANAGEMENT 131
- 6.3.3 SNMP Traps 132
- 6.4 Telnet Interface 134
- 6.5.2 Web Server Menu Tree 136
- 6.5.3 User Login 137
- 6.5.4.1 Home Page 138
- 6.5.4.1.1 Home 138
- IMPOR TANT 140
- 6.5.4.2 Admin Pages 141
- Host Access List 142
- Modem Group 148
- Internal Redundancy 148
- Redundancy Mode 148
- Frequency Reference 148
- Interface / Framing 148
- Modulator Parameters 149
- Demodulator Parameters 149
- Status Page – ‘Tx’ Selected 150
- Events Log 152
- Alarm Mask 152
- Statistics Log 153
- Test Mode 156
- BERT Results 156
- Spectrum Analyzer Knobs 157
- Real-Time Clock 160
- Firmware Image Selection 160
- Modem Configuration 160
- (View) FAST/HW Options 161
- Rx Buffer 161
- BUC Configuration 164
- BUC Status 164
- LNB Control 165
- LNB Status 165
- Chapter 7. FORWARD ERROR 167
- CORRECTION OPTIONS 167
- 7.3.1 Closed Network Modes 169
- 7.4 Trellis Coding 169
- 7.5.1 Introduction 170
- FOR AGAINST 173
- Decoding 174
- Viterbi with 175
- RS 220,200 175
- Outer Code 175
- 8-PSK/TCM Rate 2/3 176
- Decoding, with and 176
- Rate 3/4 QPSK, 8-PSK 177
- Comtech Turbo Product Codec 177
- Rate 21/44 BPSK 180
- Rate 5/16 BPSK 180
- POWER CONTROL (AUPC) 183
- Chapter 8. AUTOMATIC UPLINK 183
- 8.3 Compensation Rate 185
- 8.4 Monitoring 185
- Chapter 9. DoubleTalk 187
- Carrier-in-Carrier 187
- 9.3 System Functionality 188
- Figure 9-4 through 191
- 9.4.3 Carrier-in-Carrier 194
- Ratio (CnC Ratio) 194
- 9.4.4 Symbol Rate Ratio 195
- Carrier(s) 196
- 9.4.7 2 198
- 9.4.8 3 199
- 9.5 Conclusion 200
- Chapter 10. EDMAC CHANNEL 201
- 10.2 M&C Connection 202
- 10.3 Setup Summary 203
- EDMAC Channel MN/CDMQX.IOM 204
- Chapter 11. REDUNDANCY 205
- Redundancy MN/CDMQX.IOM 206
- Appendix A. CABLE DRAWINGS 207
- User data 208
- Appendix A MN/CDMQX.IOM 209
- Appendix B. FAST ACTIVATION 213
- PROCEDURE 213
- Appendix B MN/CDMQX.IOM 214
- B.2.3 Acquire FAST Code 217
- B.2.4 Enter FAST Codes 217
- Appendix C. REMOTE CONTROL 219
- C.3 EIA-232 220
- C.4 Basic Protocol 220
- C.5 Packet Structure 220
- C.5.7 End of Packet 223
- Appendix C MN/CDMQX.IOM 225
- Command or Query 229
- C.6.4 Queries 242
- N/A 6 bytes Query only 246
- METRIC CONVERSIONS 259
- Units of Length 259
- Temperature Conversions 259
- Units of Weight 259
- 480 • 333 • 2200 PHONE 260
- • 333 • 2161 FAX 260
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