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Comtech EF Data SDM-300A manuali

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Comtech ef data SDM-300A Manuale Utente (470 pagine)


Marchio: Comtech-ef-data | Categoria: Apparecchiature | Dimensione: 9.01 MB |

 

Indice

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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