Comtech EF Data SDM-300L3 manuály

Comtech ef data SDM-300L3 Uživatelský manuál (408 strany)

Značka: Comtech-ef-data | Kategorie: Zařízení | Velikost: 5.52 MB |

Angličtina

Tabulka s obsahem

Satellite Modem

1

Installation and O

1

SDM-300L3

3

Customer Support

4

Table of Contents

5

Preface MN/SDM300L3.IOM

10

Figures

13

About this Manual

15

Related Documents

15

Conventions and References

15

Cautions and Warnings

15

Metric Conversion

16

Trademarks

16

Electrical Safety

17

Environmental

17

Installation

18

Warranty Policy

20

Limitations of Warranty

20

Exclusive Remedies

20

Disclaimer

20

Chapter 1. INTRODUCTION

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Introduction MN/SDM300L3.IOM

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1.1 Overview

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1.2 Options Summary

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1.5 Compatibility

26

1.6.1 Overview

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1.6.2 Description

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1.6.4 BPSK Encoding

28

1.6.5 QPSK Encoding

28

1.6.6 OQPSK Encoding

29

1.6.7 8-PSK Encoding

29

1.7.1 Overview

30

1.8.1 Overview

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. M&C Block Diagram

33

1.9 Dimensional Envelope

35

Chapter 2. INSTALLATION/

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UPGRADES

37

2.2 Installation

38

2.3.1.1 Installation

40

Overhead

41

2.3.2 Reed-Solomon PCB

42

2.3.2.1 Unpacking

42

2.3.2.2 Installation

42

Reed-Solomon Cards (TX

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RX, or Duplex in Either

43

2.3.3.1 Unpacking

44

2.3.3.2 Installation

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2.4.1 G.703/ASYNC Module

48

2.5 Hardware Upgrades

50

2.6 Flash Upgrading

52

Chapter 3. CONNECTOR PINOUTS

55

J2 J3 J4 J5

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3.2.10 AC Power Connector

68

Chapter 4. FRONT PANEL

69

4.2 LED Indicators

70

4.3 Front Panel Keypad

71

4.4 Menu System

72

4.4.5 REVISION EMULATION

73

4.5 Menu Tree

74

SDM-300L3 CUSTOM

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VER: X.X.X

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FUNCTIONAL SELECT

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TX-X CODE/DATA RATE

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TX-IF FREQUENCY

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1200.0000 MHz

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TX TERMINAL FREQUENCY

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5845.0000 MHz

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TX-IF OUTPUT

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TX POWER LEVEL

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SCRAMBLER

80

DIFF. ENCODER

80

CARRIER MODE

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MODEM REFERENCE

81

ODU OUTPUT DELAY

83

ODU 10 MHZ REF

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RS ENCODER (CONDITIONAL)

84

RX-X CODE/DATA RATE

84

RX-IF FREQUENCY

86

RX TERMINAL FREQUENCY

87

4200.0000 MHz

87

DESCRAMBLER

87

DIFF. DECODER

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RF LOOP BACK

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IF LOOP BACK

90

RS DECODER

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TX CLOCK SOURCE

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TX CLOCK PHASE

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EXT-CLK FREQ

96

BUFFER CLOCK

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RX (SATELLITE)

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RX CLOCK PHASE

97

B-BAND LOOP BACK

98

INTRFC LOOP BACK

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BUFFER SIZE (CONDITIONAL)

100

PCB is installed

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RX DATA FAULT

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TX 2047 PATTERN

102

RX 2047 PATTERN

103

TX CODING FORMAT

103

RX CODING FORMAT

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SERVICE CHANNEL

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DROP FORMAT

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INSERT FORMAT

107

Card is installed

108

Overhead Card is installed

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IMPORTANT

110

(CONDITIONAL)

114

TRACKING RATE (CONDITIONAL)

117

REMOTE CL ACTION

118

CONFIGURATION

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AGGREGATE DATA RATE

121

(OPTIONAL/CONDITIONAL)

121

N * 64.0 Kbps for D&I

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AUPC, or DISABLED

124

RX CHAN #4 DATA RATE

127

RX CHAN #4 PHASE

127

↑] or [↓]. Press

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(OPTIONAL) (CONDITIONAL)

133

(CONDITIONAL)

136

MODULATOR

137

137

DEMODULATOR

137

TX INTERFACE

138

RX INTERFACE

139

BACKWARD ALARMS

140

OUTDOOR UNIT

141

FUNCTION SELECT

142

STORED FLTS/ALMS

142

AUPC ENABLE (CONDITIONAL)

148

2047 ERRORS

150

ASSIGN TRANSMIT FILTERS

152

TX TERMINAL LO

154

0 MHz MIX:

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MOD POWER OFFSET

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MODULATOR TYPE

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SCRAMBLER TYPE

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ASSIGN RECEIVE FILTERS

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RX TERMINAL LO

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O MHz MIX:

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RX BPSK ORDERING

165

DEMOD SPECTRUM

165

TX OVERHEAD TYPE

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RX OVERHEAD TYPE

168

IDR BACKWARD

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ALARM CONTROL

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MASTER RESET

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HARD/SOFT

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MODEM TYPE

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MODEM OPTIONS

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CARD #1 TYPE

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OVERHEAD 01

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CARD #2 TYPE

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REED SOLOMON 03

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CARD #3 TYPE

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REED SOLOMON 02

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CARD #1 OPTIONS

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CARD #2 OPTIONS

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CARD #3 OPTIONS

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LOCAL MODEM AUPC

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MODEM SERIAL #

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012345678

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CARD #1 SERIAL #

192

to execute the change

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FACTORY SET-UP

196

Chapter 5. MODEM TYPE

201

5.2 IDR Operation

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5.3 IBS Operation

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5.3.1 309 IBS Operation

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5.3.2 VSAT IBS Operation

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5.4 D&I Operation

204

5.5 ASYNC/AUPC Operation

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Modem Types MN/SDM300L3.IOM

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5.7 Custom Operation

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5.8 Reed-Solomon Modes

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Chapter 6. CLOCKING AND RX

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BUFFERING SETTINGS

211

Figure 6-1

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RECOVERY

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RX CLOCK = INSERT

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6.3 Buffering

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FIGURE 6-6. CLOCK SLIP

220

FIGURE 6-7. DOPPLER SHIFT

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6.3.1 Buffer Size

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6.4 Doppler

222

6.5 Plesiochronous

223

6.7 Frame/Multiframe Length

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6.7.2 Total Buffer Length

227

CHAPTER 7. FEC AND TURBO

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7.2 Coding

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7.3.1 Introduction

230

Figure 7-1. Viterbi Decoder

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Eb/No (dB)

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UNCODED 1:1 BPSK OQPSK

237

Chapter 8. SYSTEM CHECKOUT

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8.1.1 Interface Checkout

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8.1.2 Modulator Checkout

245

WITH NOISE

248

WITHOUT NOISE

248

Chapter 9. FAULT ISOLATION

249

9.1.1 System Faults/Alarms

250

9.1.3.1 Faults Tree

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9.1.3.2 Modulator Faults

254

9.1.3.3 Demodulator Faults

255

9.1.3.4 Outdoor Unit

256

Chapter 10. OPEN NETWORK

259

OPERATIONS

259

10.2.1 IBS Modem Defaults

262

10.3 IDR

263

0 dB V.35 Scrambler ON

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10.4.1.1 Data Interface

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10.4.1.2 Transmit MUX

269

10.4.1.3 Receive DEMUX

270

10.4.1.6 Backward Alarm

271

follows:

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. D&I Modem Faults

275

Chapter 11. ASYNCHRONOUS

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INTERFACE/AUPC

277

. ASYNC/AUPC Block Diagram

279

11.2 AUPC

280

TX and RX Reed-Solomon

281

11.2.1.1 Remote AUPC

282

11.3 ASYNC

283

11.3.3 MUX Operation

284

11.3.4 DEMUX Operation

284

11.3.5 Buffer Operation

284

11.3.8 Non-ASYNC Operation

286

ASYNC REMOTE OPERATION

288

LOCAL END REMOTE END

289

EIA-485 [4-Wire])

294

[2-Wire])

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[4-Wire])

298

Chapter 12. G.703

301

G.703 MN/SDM300L3.IOM

302

CHAPTER 13. FULLY

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ACCESSIBLE SYSTEM

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TOPOLOGY (FAST)

303

Select Features:

304

Options MN/SDM300L3.IOM

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Verify Upgrade

306

CHAPTER 14 . SPECIFICATIONS

307

Figure 14-1. Block Diagram

308

14.2 Specification Summary

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Dual: dual sideband

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14.5.1 Digital Data Rate

312

Capacitively coupled

315

-63.0 100 Hz

316

-73.0 1 kHz

316

-83.0 10 kHz

316

-93.0 100 kHz

316

≤ -25 dBc and carrier

318

14.6 Encoding

319

14.6.1 BPSK Encoding

319

15.6.1 QPSK Encoding

319

14.6.2 OQPSK Encoding

320

14.6.3 8-PSK Encoding

320

14.7.1 Digital Data Rate

321

14.7.3 Descrambling Types

324

14.7.5 BPSK Bit Ordering

324

300L_levels.xls

327

(Optional)

328

Reed Solomon(Optional)

329

(Optional)

330

14.8.8 BER Threshold

330

14.9 Acquisition Time

331

14.9.3 AGC Output

332

14.10.13 Switch Faults

335

14.11 Decoding

335

14.11.1 BPSK Decoding

335

14.11.2 QPSK Decoding

335

14.11.4 8-PSK Decoding

336

14.13.5 Turbo AUPC

342

14.14.3 IBS Framing

342

14.14.5 IBS Scrambling

343

14.15.2 D&I Framing

344

14.16.2 IDR Framing

345

14.17 System Specifications

346

14.17.1 Loopback Modes

346

14.17.2 Test Modes

346

14.17.3 Remote Control

347

14.17.5 Monitored Signals

347

14.18 Stored Faults

348

14.19 Stored Configurations

348

14.20 Interoperability Modes

348

Chapter 15. BUC FSK

349

COMMUNICATIONS

349

15.2 Message Structure

350

15.3 Power Class

351

Appendix A. REMOTE CONTROL

353

OPERATION

353

A.2 Message Structure

354

A.2.1 Start Character

354

A.2.2 Device Address

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A.2.3 Command/Response

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A.2.4 End Character

356

Command:

358

(MPO_)

358

Modulator Output Power

372

AUPC Local Power Enable

373

A.4.4 Fault Status

378

A.4.5 Error Performance

379

A.5 Stored Faults

382

Appendix B. Burst Mode

399

Modulator Operation

399

B.2 Specifications

400

B.2.1 Digital Data Rate

400

Capacitively coupled

401

B.2.8 Phase Noise

402

B.2.10 Transmit IF Power

402

B.2.13 Spurious Emissions

403

B.2.17 Transmit Preamble

404

B.2.18 Transmit Packet

404

B.2.19 Transmit Postamble

404

METRIC CONVERSIONS

407

Units of Length

407

Temperature Conversions

407

Units of Weight

407

480 • 333 • 2200 PHONE

408

480 • 333 • 2161

408

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