manuais Comtech EF Data SDM-9000

Comtech ef data SDM-9000 Manual do Utilizador (256 páginas)

Marca: Comtech-ef-data | Categoria: Equipamento | Tamanho: 3.65 MB |

Inglês

Índice

SDM-9000

1

Errata A

3

Filename: T_ERRATA 2

4

8 Mbit/s

5

Errata B

6

Errata C

7

Satellite Modem

9

Customer Support

10

Table of Contents

11

Rev. 4 v

13

Rev. 4 vii

15

Rev. 4 ix

17

About this Manual

19

Related Documents

19

Conventions and References

19

Cautions and Warnings

19

Metric Conversion

20

Military Standards

20

Trademarks

20

European EMC Directive

21

Warranty Policy

22

Limitations of Warranty

22

Exclusive Remedies

22

Disclaimer

22

Chapter 1

23

INTRODUCTION

23

1.1 Overview

24

1.1.2 Description

26

Rev. 4 1–5

27

1.1.3 Options

28

1.1.3.1 Reed-Solomon Codec

28

1.1.3.2 8PSK/16QAM

28

Rev. 4 1–7

29

1.2 Modem Assemblies

30

1.3 Modem Specifications

32

Rev. 4 1–13

35

Rev. 4 1–15

37

Rev. 4 1–17

39

1–18 Rev. 4

40

Rev. 4 1–19

41

1–20 Rev. 4

42

Chapter 2

43

INSTALLATION

43

2.2 System Options

44

2.3 System Installation

45

2–4 Rev. 4

46

2.4 External Connectors

47

2.4.1 TX/IF Output (CP1)

48

2.4.2 RX/IF Input (CP2)

48

2.4.3 Receive Data (CP3)

48

2.4.4 Send Data (CP4)

48

2.4.5 External Clock (CP5)

48

2.4.6 Remote (J6)

49

2.4.7 Fault (J7)

50

Rev. 4 2–9

51

2.4.8.3 ECL Interface (J8)

54

2.4.9 AUX 1 (J9)

56

2.4.10 Alarms (J10)

57

2.4.11 AC Power

58

2.4.12 DC Power

58

2.4.13 Ground (GND)

58

Chapter 3

59

CONFIGURATION

59

See Note

60

3.2 Modulator

61

3.3 Demodulator

62

3.4 Interface

63

3–6 Rev. 4

64

Rev.4 3–7

65

3–8 Rev. 4

66

Rev.4 3–9

67

Type Part Number Used with

67

3.5.1 Compatibility

68

3.5.2 Installation

68

3.5.2.2 Tools Required

69

3–12 Rev. 4

70

3.6 Software Configuration

72

3.6.1 Revision Emulation

72

3.6.2.1 Remote Baud Rate

73

3.6.2.2 Remote Address

73

3.6.3 Modem Defaults

74

Chapter 4

75

OPERATION

75

4.1.1 LED Indicators

76

4.1.2 Front Panel Controls

77

4.2 Menu System

78

Figure 4-2. Main Menu

78

4.2.1 Configuration

79

4–6 Rev. 4

80

• -5.0 to -30.0 dBm (offset)

81

Rev. 4 4–9

83

4–10 Rev. 4

84

Rev. 4 4–13

87

4–14 Rev. 4

88

4.2.1.4 Configuration Save

93

4.2.1.5 Configuration Recall

94

Figure 4-8. Monitor Menu

95

4.2.2 Monitor

96

Rev. 4 4–23

97

4.2.3 Faults/Alarms

98

4.2.3.1 Modulator Faults

99

4.2.3.2 Demodulator Faults

100

4.2.3.3 TX Interface Faults

101

4.2.3.4 RX Interface Faults

102

4.2.3.6 Backward Alarms

103

Note: IDR overhead only

103

Rev.4 4–31

104

4–32 Rev. 4

105

4.2.4 Stored Faults/Alarms

106

4–34 Rev. 4

107

4.2.5 Utility

108

ACCESS TO

109

CONDITIONAL OR

109

OPTION-DEPENDENT

109

Parameter Information

109

4.2.5.1 Utility Modulator

110

4–38 Rev. 4

111

4.2.5.2 Utility Demodulator

112

4–40 Rev. 4

113

Rev.4 4–41

114

4.2.5.3 Utility Interface

115

4–44 Rev. 4

117

4.2.5.4 Utility System

118

4–48 Rev. 4

121

4.2.5.5 Utility Modem Type

122

Figure 4-17. RF Loopback

124

Figure 4-18. IF Loopback

124

4–52 Rev. 4

125

4.3.2.1 TX Timing

127

4.3.2.2 RX Timing

127

Rev.4 4–55

128

Chapter 5

129

THEORY OF OPERATION

129

5.1.2 Theory of Operation

130

Rev.4 5–3

131

5.2 Modulator

132

5.2.1 Description

132

Rev.4 5–5

133

5.2.2 Specifications

134

5.2.3 Theory of Operation

135

5.2.4.1 Description

137

5.3 Demodulator

139

5.3.1 Description

139

5.3.2 Specifications

139

5–12 Rev. 4

140

5.3.3 Theory of Operation

141

5–14 Rev. 4

142

Rev.4 5–15

143

5.4 Viterbi Decoder

144

5.4.1 Description

144

5.4.2 Specifications

144

5.4.3 Theory of Operation

145

5.5 Interface

146

5.5.1 Description

146

5.5.2.1 G.703

148

5.5.2.2 ECL

148

5.5.2.3 MIL-STD-188

148

5.5.3 Theory of Operation

149

5–22 Rev. 4

150

5.5.3.1 Transmit Data Path

151

5.5.3.2 Receive Data Path

152

5.5.3.3 Loopbacks

154

5.5.3.3.1 Baseband Loopback

154

5.5.3.3.2 Interface Loopback

155

Rev.4 5–29

157

5–30 Rev. 4

158

Chapter 6

159

MAINTENANCE

159

CONNECTORS

160

6.1.2 Modulator

161

6–4 Rev. 4

162

Chart (QPSK)

163

Chart (8PSK)

164

Chart (16QAM)

165

6.1.3 Demodulator

166

WITH NOISE

167

WITHOUT NOISE

167

6.1.4 Test Points

168

6.1.4.1 Interface PCB

168

6.1.4.2 Modulator PCB

169

6.1.4.3 Demodulator PCB

170

6.2 Fault Isolation

171

6.2.1 Guidelines

171

6.2.2 System Faults/Alarms

172

(Section 6.2.1)

172

Rev. 4 6–15

173

6–16 Rev. 4

174

Rev. 4 6–17

175

6.2.2.2 Fault/Alarm Analysis

177

6.2.2.2.1 Modulator Faults

177

6.2.2.2.2 Demodulator Faults

178

6.2.2.2.6 Backward Alarms

184

6.5 Repacking for Shipment

185

6.3 Module Replacement

185

6.4 Module Identification

185

6–28 Rev. 4

186

Appendix A

187

RS TIMING

188

CONTROLLER

188

Rev. 4 A–3

189

A–4 Rev. 4

190

A–6 Rev. 4

192

A.1.3 Installation

193

A.1.3.2 Tools Required

193

A–8 Rev. 4

194

Rev. 4 A–9

195

A–10 Rev. 4

196

A.2.1 Requirements

197

A–12 Rev. 4

198

A.2.3 DBS Baseband Interface

200

A–16 Rev. 4

202

A–18 Rev. 4

204

A–20 Rev. 4

206

A–22 Rev. 4

208

Rev. 4 A–23

209

INTERLEAVING DEPTH I = 12

210

A.2.9 Inner Coder/Decoder

211

A.2.9.1 Punctured Operation

211

A.2.9.2 Signal Space Mapping

213

Figure A-21

213

A.2.10 Nyquist Filters

214

Specification

216

Rev. 4 A–31

217

A–32 Rev. 4

218

Appendix B

219

REMOTE CONTROL OPERATION

219

B.2 Message Structure

220

B.2.1 Start Character

220

B.2.2 Device Address

220

B.2.3 Command/Responses

221

B.2.4 End Character

221

B.3.1 Modulator

222

B.3.2 Demodulator

223

B.3.3 Interface

224

Rev. 4 B–7

225

B–8 Rev. 4

226

B.3.4 System

227

B.4.1 Configuration

228

Rev. 4 B–11

229

B–12 Rev. 4

230

Rev. 4 B–13

231

B–14 Rev. 4

232

B.4.2 Error Performance

233

B–16 Rev. 4

234

Rev. 4 B–17

235

B–18 Rev. 4

236

B.5 Stored Faults

237

B–20 Rev. 4

238

Rev. 4 B–21

239

B–22 Rev. 4

240

Rev. 4 B–23

241

B–24 Rev. 4

242

Rev. 4 B–25

243

B–26 Rev. 4

244

Rev. 4 B–27

245

B–28 Rev. 4

246

Rev. 4 B–29

247

B–30 Rev. 4

248

Glossary

249

OSC Oscillator

252

METRIC CONVERSIONS

255

Units of Length

255

Temperature Conversions

255

Units of Weight

255

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