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SDM-300A Satellite Modem
Revision 6
Front Panel Operation
MN/SDM300A.IOM
5–33
Examples:
CHANNEL: TX-1
LEVEL = -5 dBm
CHANNEL: TX-2
LEVEL = -5 dBm
CHANNEL: RX-1
LEVEL = -5 dBm
CHANNEL: RX-2
LEVEL = -5 dBm
1
2
...
122
123
124
125
126
127
128
129
130
131
132
...
469
470
SDM-300A
1
Errata A
3
Errata B
4
Customer Support
6
Table of Contents
7
Preface MN/SDM300A.IOM
10
..........19–10
14
Figures
16
About this Manual
21
Related Documents
21
Conventions and References
21
Cautions and Warnings
21
Examples of
22
Multi-Hazard
22
Formats
22
ELECTRICAL SAFETY
23
Installation
24
Warranty Policy
26
Limitations of Warranty
26
Exclusive Remedies
26
Disclaimer
26
Chapter 1. Introduction
27
Introduction MN/SDM300A.IOM
28
1.1 Overview
29
1.1.1 Modem Functions
29
1.1.2 Standard Features
29
1.1.4 Modes of Operation
30
1.2 Options
32
Optional)
33
1.4 Compatibility
35
1.5 Breakout Panels
35
1.5.2 UB-530 Breakout Panel
35
1.5.3 UB-54 Breakout Panel
36
SS/300A-00023 Reserved
37
1.7 New in this Release
39
2.1.1 Theory of Operation
41
2.1.2 Remote Baud Rate
44
2.1.3 Remote Address
44
• 8-PSK
45
2.2.1 Theory of Operation
46
± 1 x 10
47
OPTIONAL
48
2.3.1 Theory of Operation
49
2.5.1 Available Interfaces
53
2.5.3 Closed Network
54
2.5.4 Open Network
54
Chapter 3. Installation/
57
Upgrades
57
3.2 Installation
58
Description Application
60
Phillips Screwdriver
60
3.3.2 Hardware Upgrades
62
3.4 Reed-Solomon PCB
62
3.4.1 Unpacking
62
3.4.2 Installation
62
3.5.1 Unpacking
64
3.5.2 Installation
65
U74 U86
67
TURBO CODEC
67
INSTALLED
67
Turbo Setup
68
DUPLEX
72
REED-SOLOMON
72
3.8 Hardware Upgrades
76
CHANGEABLE
78
TX/IF OUTPUT
81
TX/IF OUTP UT
81
4.1.10 Power Entry
93
4.1.10.1 AC Power Connector
93
4.1.10.2 48VDC Option
93
Chapter 5. FRONT PANEL
95
OPERATION
95
5.1.1 LED Indicators
96
5.1.2 Front Panel Keypad
97
5.2 Menu System
98
5.4 Opening Screen
101
TX-X CODE RATE
102
TX-IF FREQUENCY
104
TX POWER LEVEL
105
+ 0.0 dBm
105
SCRAMBLER
105
CARRIER MODE
106
DIFF. ENCODER
106
MODEM REFERENCE
107
RS ENCODER (CONDITIONAL)
107
RX-X CODE RATE
108
RX-IF FREQUENCY
110
DIFF. DECODER
110
RF LOOP BACK
111
IF LOOP BACK
112
BER THRESHOLD
113
SWEEP CENTER
113
SWEEP RANGE
114
60000 Hz
114
REACQUISITION
114
0 SECONDS
114
RS DECODER (CONDITIONAL)
115
TX CLOCK SOURCE
116
TX CLOCK PHASE
117
BUFFER CLOCK
118
RX (SATELLITE)
118
(CONDITIONAL)
119
BUFFER CENTER
120
RX CLOCK PHASE
120
B-BAND LOOP BACK
121
INTRFC LOOP BACK
122
(CONDITIONAL)
123
FAULT (CONDITIONAL)
124
PATTERN (CONDITIONAL)
125
FORMAT (CONDITIONAL)
125
SERVICE CHANNEL ADJUST
126
Examples:
127
IMPORTANT
130
INSERT CHANNEL
131
ASSIGNMENTS
131
BAUD (CONDITIONAL)
132
LENGTH (CONDITIONAL)
133
STOP (CONDITIONAL)
134
PARITY (CONDITIONAL)
135
AUPC ENABLE (CONDITIONAL)
136
NOMINAL POWER (CONDITIONAL)
137
MINIMUM POWER (CONDITIONAL)
137
MAXIMUM POWER (CONDITIONAL)
138
TARGET Eb/No (CONDITIONAL)
138
TRACKING RATE (CONDITIONAL)
139
REMOTE CL ACTION
140
CONFIGURATION
141
AGGREGATE DATA RATE
143
(OPTIONAL/CONDITIONAL)
143
RX CHAN #4 PHASE
149
FUNCTION SELECT
150
MONITOR
150
RAW BER
150
2.4 E-3
150
CORRECTED BER
151
4.0 E-3
151
16.0 dB
151
FRAME ERRORS
153
2047 errors
153
FAULTS/ALARMS
154
MODULATOR
155
155
DEMODULATOR
155
+
155
TX INTERFACE
156
---+
156
RX INTERFACE
157
158
BACKWARD ALARMS
158
STORED FLTS/ALMS
159
RX INTERFACE X
161
STORED TIME/DATE
161
COMMON X
161
REMOTE AUPC
163
ENABLE (CONDITIONAL)
164
LOOP BACK (CONDITIONAL)
165
PATTERN
165
2047 ERRORS
166
(CONDITIONAL)
168
ASSIGN TRANSMIT FILTERS
169
MOD POWER OFFSET
170
+ 0.0 dB
170
ENCODER TYPE (CONDITIONAL)
171
FILTERS
174
TYPE (CONDITIONAL)
176
CONTROL (CONDITIONAL)
183
YEAR DISPLAY
188
2 - DIGIT
188
TEST MODE STATUS
188
_ _ _ _ _ _ _ _
188
MONTH:DAY:YEAR
189
DEMO MODE
192
MASTER RESET
192
HARD/SOFT
192
CODE RATE/DATA RATE
193
G.703 OPERATION
194
UNBALANCED
194
MODEM EMULATION
195
DISABLED
195
REV EMULATION
195
CURRENT_VERSION
195
MODEM OPTIONS
196
CARD #1 OPTIONS
198
CARD #2 OPTIONS
198
CONFIGURATION CODE - MODEM
201
to execute the change
202
UTILITY
203
FACTORY SET-UP
203
5.5 Custom Modem Defaults
204
Chapter 6. Modem Type
209
6.1.1 IDR Operation
210
6.1.2 IBS Operation
211
6.1.3 D&I Operation
212
6.1.4 ASYNC/AUPC Operation
213
6.1.6 Custom Operation
215
8-PSK 5/6
218
Chapter 7. Clocking Options
221
RECOVERY
225
• Blocking diagram
227
• Transmit clock options
227
• Buffer clock options
227
RX CLOCK = INSERT
228
Chapter 8. Buffering
229
Figure 8-1. Clock Slip
230
Figure 8-2. Doppler Shift
231
8.2 Buffer Size
232
8.3 Doppler
232
8.4 Plesiochronous
233
Revision 6
234
Buffering SDM300A.IOM
234
Chapter 9. Forward Error
237
Correction (Options)
237
9.2 Viterbi
238
9.3 Sequential
239
9.4.1 Closed Network Modes
241
9.4.2 Open Network Modes
241
9.6.1 Introduction
243
3/4 Rate
247
1/2 Rate
247
7/8 Rate
247
Specification
247
1/2 Rate 3/4 Rate
250
SPECIFICATIONS
250
1/2 Rate 3/4 Rate 7/8 Rate
251
1/1 Rate
255
Eb/No (dB)
256
Chapter 10. Open Network
257
Operations
257
10.2.1 IBS Specifications
260
10.2.2 IBS Modem Defaults
261
10.2.5 IBS Framing
262
10.2.7 IBS Scrambling
262
10.3.1 IDR Specifications
266
0 dB V.35 Scrambler ON
267
10.3. 4 IDR Framing
268
10–14
270
TRANSMIT SECTION
272
RECEIVE SECTION
272
Figure 10-4. D&I
273
10.4.2 Theory of Operation
274
10.4.3 Data Interference
274
10.4.4 Transmitted MUX
274
10.4.5 Receive DEMUX
275
10.4.6 Plesiochronous Buffer
275
10.4.8 Backward Alarm
276
10–22
278
10.4.12 D&I Framing
280
10.5 G.703
281
10.5.1 G.703 Specifications
281
10–26
282
Chapter 11. Asynchronous
283
Interface/AUPC
283
. ASYNC/AUPC Block Diagram
285
11.2 AUPC
286
TX and RX Reed-Solomon
287
11.2.1.1 Remote AUPC
288
11.3 ASYNC
289
11.3.3 MUX Operation
290
11.3.4 DEMUX Operation
290
11.3.5 Buffer Operation
290
11.3.8 Non-ASYNC Operation
292
ASYNC REMOTE OPERATION
294
LOCAL END REMOTE END
295
EIA-485 [4-Wire])
300
[2-Wire])
301
[4-Wire])
304
Timing
307
Chapter 13. Duplex-Reed
313
Solomon Card Option
313
Chapter 14. 8-Channel
315
Multiplexer
315
14.2 Installation
316
Chapter 15. Flex Mux
321
Flex Mux MN/SDM300A.IOM
322
15.2 Installation
326
Chapter 16. FAST Accessible
329
Options
329
16.3 FAST System Theory
331
16.4 Implementation
331
16.4.1 Activation Procedure
331
16.4.1.2 Select Features:
332
16.4.1.5 Verify Upgrade
334
16.5 Variable Data Rates
334
Chapter 17. FLASH Upgrading
335
Chapter 18. Troubleshooting
337
18.2 Interface Checkout
338
18.2.1 Modulator Checkout
339
18.2.2 Demodulator Checkout
342
WITH NOISE
343
WITHOUT NOISE
343
18.3 Fault Isolation
344
18.3.1 System Faults/Alarms
344
18.3.2 Faults/Alarms Display
348
18.3.3.1 Modulator Faults
349
18.3.3.2 Demodulator Faults
350
Chapter 19. Specifications
357
19.4.1 Digital Data Rate
361
19.4.3 Scrambling Types
364
19.4.4 Differential Encoder
364
19.4.5 BPSK Bit Ordering
364
Capacitively coupled
365
Dual sideband
367
19.5.1 Digital Data Rate
368
19.5.3 Descrambling Types
371
19.5.4 Differential Decoder
371
19.5.5 BPSK Bit Ordering
371
(Optional)
375
(Optional)
375
Reed-Solomon (Optional)
376
19.6.11 BER Threshold
378
19.7 Acquisition Time
379
19.7.3 AGC Output
380
19.8.1 Transmit Clock Source
380
19.8.2.13 Buffer Centering
383
19.8.2.14 Switch Faults
383
19.9.1 Universal
383
19.9.2 EIA-232 Specification
384
19.10 System Specifications
388
19.10.1 Loopback Modes
388
19.10.2 Test Modes
388
19.10.3 Remote Control
389
19.10.4 Modem Remote Address
389
19.10.5 Monitored Signals
389
19.11 Dimenionsal Envelope
391
Appendix A. Remote Control
393
Operation
393
A.2.1 Start Character
394
A.2.2 Device Address
394
A.4 End Character
395
Command:
397
(MPO_)
397
Modulator Output Power
420
AUPC Local Power Enable
421
A.15 Modem Fault Status
430
Error Performance Status
433
A.16 Stored Faults
437
A.20 Miscellaneous Status
456
Glossary
461
Glossary MN/SDM300A.IOM
464
(Optional), 10-4
467
QPSK, 19-21
467
METRIC CONVERSIONS
469
Units of Length
469
Temperature Conversions
469
Units of Weight
469
480 • 333 • 2200 PHONE
470
480 • 333 • 2161
470
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