Comtech EF Data SDM-100A manuals

Comtech ef data SDM-100A User Manual (212 pages)

Brand: Comtech-ef-data | Category: Equipment | Size: 3.80 MB |

English

Table of contents

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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