Comtech-ef-data C5 Manual do Utilizador Página 144
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Operation C5/K1/K3 Integrated Satellite Terminal System
4–18 Rev. 0
4.1.3.3 Configuration Interface
Refer to Figure 4-6.
TX CLOCK SOURCE Programs the clock source for the modem transmitter clock to the
following configurations:
! TX TERRESTRIAL:
Sets the TX clock to recover timing
from the incoming clock/data.
! SCT (INTERNAL):
Sets the TX clock to operate from the
modem internal clock (this is also the fallback clock).
Note:
When loop timing is enabled, SCT (LOOP) is
displayed instead of SCT (INTERNAL).
! EXT. CLOCK:
Sets the TX clock to operate from the
external reference clock. Transmit Clock source must be
phase/frequency locked to the data that is being transmitted.
The correct frequency must be programmed into EXT-CLK
FREQ.
Upon entry, the current transmit clock setting is displayed. Press [
$
]
or [
%
] to make the selection. Press [ENTER] to execute the change.
TX CLOCK PHASE Programs the TX clock phase to AUTO, NORMAL, or INVERT.
Upon entry, the current setting of the TX clock phase is displayed.
Press [
$
] or [
%
] to make the selection. When AUTO is selected, the
modem will automatically select NORMAL or INVERT to properly
phase the TX clock with the TX data. Press [ENTER] to execute the
change.
EXT-CLK FREQ Programs the external reference clock input frequency between
8 kHz to 10 MHz.
This clock frequency can be any multiple of 600 Hz from
2.4 to
&
64 kHz, and can be any multiple of 8 kHz from 32 kHz to
4.376 MHz. This can be used for the Doppler/plesiochronous buffer
reference. It can be a reference to SCT.
Upon entry, the current setting for the external reference is displayed.
Press [
"
] or [
#
] to increment or decrement the digit at the flashing
cursor. Press [ENTER] to execute the change.
- C5/K1/K3 1
- C5/K1/K3C5/K1/K3 1
- Warranty Policy 4
- Limitations of Warranty 4
- Exclusive Remedies 4
- Disclaimer 4
- About this Manual 5
- Cautions and Warnings 5
- Metric Conversions 5
- EMC Directive 6
- Directive: EN55022 6
- Related Documents 7
- Customer Support 8
- Table of Contents 9
- Rev. 0 vii 11
- Rev. 0 ix 13
- Rev. 0 xi 15
- Rev. 0 xiii 17
- Rev. 0 xv 19
- Chapter 1 21
- INTRODUCTION 21
- CONVERTER 23
- 1.1.1 Description 24
- 1.1.2 Additional Features 25
- 1–6 Rev. 0 26
- 1.3 Modes of Operation 27
- 1.4 Component Description 28
- 1.4.1 SDT-5200 Indoor Unit 29
- 1–10 Rev. 0 30
- Rev. 0 1–11 31
- Figure 1-8. LNA 32
- 1.5 Options 33
- 1–14 Rev. 0 34
- Chapter 2 35
- SPECIFICATIONS 35
- 2.1.4.1 Digital Data Rate 39
- 2.1.4.3 Scrambling Types 40
- 2.1.5 C-Band Transmit (TX) 41
- 2.1.5.1 Transmit Frequency 41
- 2.1.5.3 Phase Noise 41
- 2.1.5.5 Transmit Power 42
- 2.1.5.7 Spurious Emissions 42
- 2.1.8 C-Band Output VSWR 43
- 2.1.10.1 Digital Data Rate 44
- 2.1.10.3 Descrambling Types 45
- 2.1.10.5 Receive Frequency 46
- Rev. 0 2–13 47
- 2–14 Rev. 0 48
- 2.2.3.1 Digital Data Rate 52
- 2.2.3.3 Scrambling Types 53
- 2–20 Rev. 0 54
- 2.2.4.5 Transmit IF Power 55
- 2.2.4.7 Spurious Emissions 55
- 2.2.4.8 Transmit Test Modes 56
- 2.2.4.10 Output VSWR 56
- 2.2.5.1 Digital Data Rate 57
- 2.2.5.3 Descrambling Types 58
- 2.2.5.5 Receive Frequency 59
- 2–26 Rev. 0 60
- Refer to Figure 2-1 62
- 1/2 Rate 63
- 3/4 Rate 63
- 7/8 Rate 63
- (Optional) 64
- Performance 67
- Refer to Figure 2-4 68
- 2.4 Acquisition Times 70
- 2.4.2 AGC Output (IDU) 70
- 2.4.3 APS Output (ODU) 71
- 2.5 Interface Specifications 72
- 2.5.1 Clock 72
- 2.5.1.12 Buffering Center 74
- 2.5.1.13 Loopback Modes 75
- 2.5.1.14 Fault Outputs 75
- 2.5.2.1 Universal 75
- 2.5.2.2 EIA-232 Specification 76
- 2.5.3.2 Remote AUPC 80
- 2.6 System Specifications 81
- 2.6.1 Test Modes 81
- or Center 82
- Clear Stored Faults 83
- 2.7 Component Specifications 84
- 2.7.1 Options 84
- 2.7.2.2 IDU 87
- Receive Specification 87
- 2.7.3 C-Band Outdoor Unit 88
- 2.7.4 Ku-Band Outdoor Unit 90
- Rev. 0 2–59 93
- 2.8 Dimensional Envelopes 94
- Rev. 0 2–61 95
- 2–62 Rev. 0 96
- Chapter 3 97
- INSTALLATION 97
- 3.2 Equipment Inspection 98
- 3.2.1 Included Parts 98
- Rev. 0 3–3 99
- Tools Required 100
- Rev. 0 3–5 101
- 3.3.1 IDU Installation 102
- Figure 3-1. IDU Installation 103
- 3.3.2 ODU Installation 104
- Rev. 0 3–9 105
- 3–10 Rev. 0 106
- Rev. 0 3–11 107
- 3–12 Rev. 0 108
- 3.3.2.3 K1/K3 ODU 90 109
- Rotation Check 109
- 3–14 Rev. 0 110
- 3.4 External IDU Connections 111
- 3–16 Rev. 0 112
- Rev. 0 3–25 121
- 3–26 Rev. 0 122
- 3.4.5 Alarm (J10) 124
- 3.5 IDU–ODU Interconnections 125
- 3.6 Power Entry 126
- 3.6.1 AC Option (Standard) 126
- 3.7 Ground Connector (GND) 126
- Chapter 4 127
- OPERATION 127
- 4.1.1 LED Indicators 128
- 4.1.2 Front Panel Keypad 129
- Figure 4-3. Main Menu 130
- 4.1.3 Menu System 131
- 4–6 Rev. 0 132
- Rev. 0 4–7 133
- 4–8 Rev. 0 134
- Refer to Figure 4-4 135
- (Test Mode Configuration) 137
- 4–12 Rev. 0 138
- Refer to Figure 4-5 139
- 4–16 Rev. 0 142
- Rev. 0 4–17 143
- Refer to Figure 4-6 144
- Rev. 0 4–23 149
- 4–24 Rev. 0 150
- Refer to Figure 4-7 151
- Rev. 0 4–27 153
- 4–28 Rev. 0 154
- 4.1.3.5 Configuration Save 155
- 4.1.3.6 Configuration Recall 155
- Figure 4-10. Monitor Menu 156
- 4.1.3.7 Monitor 157
- 4–32 Rev. 0 158
- 4.1.3.8 Faults/Alarms 159
- 4–34 Rev. 0 160
- 4.1.3.8.1 Modulator Faults 161
- 4.1.3.8.2 Demodulator Faults 161
- 4.1.3.8.6 Outdoor Unit 162
- Rev. 0 4–37 163
- 4–38 Rev. 0 164
- 4.1.3.9 Stored Faults/Alarms 165
- 4–40 Rev. 0 166
- 4.1.3.10 Remote AUPC 167
- 4–42 Rev. 0 168
- 4.1.3.11 Utility 169
- 4–44 Rev. 0 170
- 4.1.3.11.1 Utility Modulator 171
- 4–46 Rev. 0 172
- TX SYMBOL RATE Status only 172
- Rev. 0 4–47 173
- 4–48 Rev. 0 174
- Refer to Figure 4-16 175
- 4–50 Rev. 0 176
- 4.1.3.11.3 Utility Interface 177
- Rev. 0 4–53 179
- 4–54 Rev. 0 180
- (Continued) 181
- 4.1.3.11.4 Utility System 182
- Rev. 0 4–59 185
- ACCESS TO 186
- CONDITIONAL OR 186
- OPTION-DEPENDENT 186
- Parameter Information 186
- Rev. 0 4–61 187
- Refer to Figure 4-19 188
- Refer to Figure 4-20 191
- Figure 4-21. IF Loopback 192
- Rev. 0 4–67 193
- 4.2 Software Configuration 194
- 4.2.1 Modem Types 194
- 4.2.1.2 Custom Operation 195
- 4.2.1.3 ASYNC/AUPC Operation 196
- 4.4 Clocking Options 197
- 4–72 Rev. 0 198
- Rev. 0 4–73 199
- 4–74 Rev. 0 200
- 4.5 Buffering 201
- Figure 4-26. Clock Slip 202
- 4.5.1 Buffer Size 203
- 4.5.1.1 Doppler 204
- 4.5.1.2 Plesiochronous 205
- 4.5.1.4 Total Buffer Length 206
- 4.5.2.1 Bits to Seconds 206
- 4.5.2.2 Seconds to Bits 206
- 4.6 Initial Defaults 207
- 4–84 Rev. 0 210
- Chapter 5 211
- THEORY OF OPERATION 211
- 5.2.2 Theory of Operation 212
- Rev. 0 5-3 213
- 5-4 Rev. 0 214
- 5.2.3 Remote Baud Rate 215
- 5.2.4 Remote Address 215
- 5.3 Modulator 216
- 5.3.2 Theory of Operation 217
- 5-8 Rev. 0 218
- 5.3.3.1 BPSK Encoding 219
- 5.3.3.2 QPSK Encoding 219
- 5.4 Demodulator 220
- 5.4.2 Theory of Operation 221
- 5-12 Rev. 0 222
- 5.5 Decoder 223
- 5-14 Rev. 0 224
- Chapter 6 225
- SYSTEM CHECKOUT 225
- 6.2 Interface Checkout 226
- the Carrier Mode 227
- 6.2.2 Demodulator Checkout 230
- 6.2.3 ODU Checkout 230
- WITH NOISE 232
- WITHOUT NOISE 232
- 6.3 Fault Isolation 233
- 6.3.1 System Faults/Alarms 233
- Table 6-2. Fault Tree 234
- 6.3.2 Faults/Alarms Display 237
- 6.3.3 Faults/Alarms Analysis 237
- 6.3.3.1 Transmitter Faults 238
- 6.3.3.2 Receiver Faults 239
- 6.3.3.6 ODU Faults 243
- Appendix A 245
- A.1.1 FAST System Theory 246
- A.1.2 Implementation 246
- A.1.2.1 Activation Procedure 247
- A–4 Rev. 0 248
- Rev. 0 A–5 249
- A.2 Interface Options 250
- Rev. 0 A–7 251
- A.2.1.1 Local AUPC 252
- Rev. 0 A–9 253
- A.2.1.2 Remote AUPC 254
- A.2.1.3 Theory of Operation 254
- A.2.1.3.5 Buffer Operation 255
- A–12 Rev. 0 256
- A.2.1.3.8 Non-ASYNC Operation 257
- AL END REM 259
- (See Note) 264
- A.2.2 Decoder 266
- A.2.2.1 Sequential Decoder 266
- Rev. 0 A–23 267
- A.2.2.2 Viterbi Decoder 268
- A.2.2.2.1 Specifications 269
- A.2.2.3 Reed-Solomon Decoder 270
- Rev. 0 A–27 271
- Rev. 0 A–29 273
- A–30 Rev. 0 274
- A.3 Reed-Solomon Option 275
- A.3.1 Reed-Solomon Codec 275
- A.3.1.1 Specifications 276
- A.3.1.2 Theory of Operation 277
- A.3.1.3 Reed-Solomon Encoder 277
- A–34 Rev. 0 278
- Rev. 0 A–35 279
- A.3.1.4 Reed-Solomon Decoder 280
- Rev. 0 A–37 281
- Overhead Type Data Rate 281
- ASYNC 2.4 to 2048 kbit/s 281
- A.3.1.6 Unpacking 282
- A.3.1.7 Installation 282
- Rev. 0 A–39 283
- A–40 Rev. 0 284
- Appendix B 285
- REMOTE CONTROL OPERATION 285
- B.2.1 Remote Control 286
- B.2.2 Monitored Signals 286
- B.2.3 Faults Monitored 287
- B.2.4 Start Character 287
- B.2.5 Device Address 287
- B.2.6 Command/Response 288
- B.2.7 End Character 288
- B.3.1 Modulator 289
- B–6 Rev. 0 290
- B.3.2 Demodulator 291
- B–8 Rev. 0 292
- B.3.3 Interface 293
- B–10 Rev. 0 294
- Rev. 0 B–11 295
- B–12 Rev. 0 296
- B.4 System 297
- B–14 Rev. 0 298
- Commands 299
- B–16 Rev. 0 300
- B.6 Status Commands/Responses 301
- B–18 Rev. 0 302
- Rev. 0 B–19 303
- B–20 Rev. 0 304
- Rev. 0 B–21 305
- B–22 Rev. 0 306
- Rev. 0 B–23 307
- B–24 Rev. 0 308
- B.7 Stored Faults 309
- B–26 Rev. 0 310
- Rev. 0 B–27 311
- B–28 Rev. 0 312
- Rev. 0 B–29 313
- B–30 Rev. 0 314
- Rev. 0 B–31 315
- B–32 Rev. 0 316
- Rev. 0 B–33 317
- B–34 Rev. 0 318
- Rev. 0 B–35 319
- B–36 Rev. 0 320
- Rev. 0 B–37 321
- B–38 Rev. 0 322
- Rev. 0 B–39 323
- B–40 Rev. 0 324
- Glossary 325
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