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SDM-100A
1
Preface
5
Military Standards
6
Trademarks
6
Related Documents
6
European EMC Directive
7
Customer Support
8
Table of Contents
9
Rev. 0 vii
11
Rev. 0 ix
13
Figures
14
Rev. 0 xi
15
Chapter 1
17
INTRODUCTION
17
1.1 Purpose and Function
18
1.2 Description
19
1.3 Options
20
1.3.1 ASYNC/AUPC Interface
20
1.3.2 ADPCM Voice
20
1.4 Modem Specifications
21
1.5 BER Performance
23
1–8 Rev. 0
24
Rev. 0 1–9
25
1–10 Rev. 0
26
Chapter 2
27
INSTALLATION
27
2.2 System Installation
28
2.3 System Requirements
29
2–4 Rev. 0
30
2.4 External Connections
31
2.4.2 Remote (J6)
32
2.4.3 Faults (J7)
33
2.4.4 TX IF Output (CP1)
33
2.4.5 RX IF Input (CP2)
34
2.4.6 AC Power
34
2.4.7 DC Power
34
2.4.8 GND
34
2.4.9 AGC Test Point
34
Chapter 3
35
OPERATION
35
3.1.2 LED Indicators
36
3.1.3 Front Panel Controls
37
3.2 Menu System
38
Rev. 0 3–5
39
3–6 Rev. 0
40
3.2.1.1 Configuration
41
3–8 Rev. 0
42
Rev. 0 3–11
45
3–12 Rev. 0
46
Rev. 0 3–15
49
3–16 Rev. 0
50
Rev. 0 3–17
51
Rev. 0 3–21
55
3–22 Rev. 0
56
3–24 Rev. 0
58
3.2.1.2 Monitor
59
3.2.1.3 Faults/Alarms
60
Rev. 0 3–27
61
3–28 Rev. 0
62
3.2.1.3.1 Modulator Faults
63
Rev. 0 3–33
67
3–34 Rev. 0
68
Rev. 0 3–35
69
3.2.1.5 Remote AUPC
70
3.2.1.6 Utility
71
3–38 Rev. 0
72
3.2.1.6.1 Utility Modulator
73
Rev. 0 3–41
75
3–42 Rev. 0
76
3–44 Rev. 0
78
3.2.1.6.3 Utility Interface
79
Rev. 0 3–47
81
3–48 Rev. 0
82
3.2.1.6.4 Utility System
83
again to reset the
84
Rev. 0 3–51
85
3–52 Rev. 0
86
Rev. 0 3–53
87
3–54 Rev. 0
88
↑] or [↓] to increase or
91
←] and [→] to move the
93
Rev. 0 3–61
95
3–62 Rev. 0
96
3–64 Rev. 0
98
Rev. 0 3–65
99
3.2.2.5 Utility Functions
100
Rev. 0 3–67
101
3–68 Rev. 0
102
3–70 Rev. 0
104
3–72 Rev. 0
106
↑] or [↓] to
107
↑] or [↓] to select ON
107
SATELLITE
111
DATA MODEM
111
3.3 Clocking Options
113
3.3.1 Master/Master
113
3.3.2 Master/Slave
113
3–80 Rev. 0
114
Rev. 0 3–81
115
3–82 Rev. 0
116
Chapter 4
117
THEORY OF OPERATION
117
± 1 x 10
119
± 1 dB to
119
STANDARD
120
NON-STANDARD
120
4.1.2 Specifications
121
4.2 Demodulator
122
4.2.1 Theory of Operation
122
4.2.2 Specifications
122
RX CLOCK
123
4–8 Rev. 0
124
Rev. 0 4–9
125
4–10 Rev. 0
126
4.3 Monitor and Control
127
4.3.1 Non-Volatile Memory
127
4–12 Rev. 0
128
4.3.5 Modem Defaults
129
4.4 Digital Interfaces
130
4.4.1 RS-422 Interface
130
4–16 Rev. 0
132
4.4.1.1 Connector Pinouts
133
0.0, ± 0.4V
134
Rev. 0 4–19
135
4–20 Rev. 0
136
4.4.2.1 Connector Pinouts
137
4.4.2.2 Specification
138
4.4.3 RS-232-C Interface
138
4.4.3.1 Theory of Operation
139
4–24 Rev. 0
140
4.4.3.2 Connector Pinouts
141
Chapter 5
143
MAINTENANCE
143
5.1.2 Modulator Checkout
144
5.1.3 Demodulator Checkout
144
Rev. 0 5–3
145
Various Code Rates
146
WITH NOISE
147
WITHOUT NOISE
147
5.1.4 Test Points
148
INTERFACE FAULTS
150
MOD FAULTS
150
DEMOD FAULTS
150
COMMON EQUIPMENT FAULTS
150
5.3 Module Identification
151
5–10 Rev. 0
152
Appendix A
153
REMOTE CONTROL OPERATION
153
A.2 Message Structure
154
A.2.1 Start Character
154
A.2.2 Device Address
154
A.2.3 Command/Response
155
A.2.4 End Character
155
Command:
156
(MPO_)
157
A.3.2 Demodulator
158
Rev. 0 A–7
159
A.3.3 Interface
160
Rev. 0 A–9
161
A–10 Rev. 0
162
Rev. 0 A–11
163
A.3.4 System
164
A.3.5 AUPC
164
Rev. 0 A–13
165
Modulator Output Power
166
A–16 Rev. 0
168
Rev. 0 A–17
169
A–18 Rev. 0
170
Rev. 0 A–19
171
A–20 Rev. 0
172
Rev. 0 A–21
173
A–22 Rev. 0
174
Rev. 0 A–23
175
A–24 Rev. 0
176
Rev. 0 A–25
177
A–26 Rev. 0
178
A.4.2 Error Performance
179
A.5 Stored Faults
180
Rev. 0 A–29
181
A–30 Rev. 0
182
Appendix B
183
OPTIONS
183
B–2 Rev. 0
184
B.1.1 Theory of Operation
186
B.1.1.5 Buffer Operation
187
B.1.1.8 Non-ASYNC Operation
188
B.1.2.1 Top Cover Removal
190
B.1.2.3 EPROM Installation
190
B.1.2.4 ASYNC Interface
190
B.1.3 Front Panel Operation
191
B.1.3.3 Demodulation
192
B.1.3.4 Utility/Interface
192
B.1.3.5 Specifications
193
Rev. 0 B–13
195
B.2.1.1 Multiplexer
196
B.2.1.2 Demultiplexer
196
B.2.1.3 Protection Switch
197
B.2.1.4 RS-422 Interface
197
B.2.2 Front Panel Operation
198
B.2.2.1 Interface
198
B.2.2.4 Utility/Interface
199
B.2.2.5 TX Alarm Indication
199
B.2.2.6 RX Alarm Indication
199
B.2.2.7 DEMUX Lock
199
B.2.2.8 Remote Off Hook
199
B.2.3 Specifications
200
B.3 Reed-Solomon Codec
201
B.3.1 Reed-Solomon Encoder
201
B–20 Rev. 0
202
Rev. 0 B–21
203
B.3.2 Reed-Solomon Decoder
204
Rev. 0 B–23
205
B–24 Rev. 0
206
Glossary
207
METRIC CONVERSIONS
211
Units of Length
211
Temperature Conversions
211
Units of Weight
211
480 • 333 • 2200 PHONE
212
480 • 333 • 2161
212
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