Comtech EF Data SNM-1010L manuali

Comtech ef data SNM-1010L Manuale Utente (266 pagine)

Marchio: Comtech-ef-data | Categoria: Apparecchiature | Dimensione: 7.83 MB |

Inglese

Indice

Data/Control Modem

1

Errata A

3

2.3.9.1 AC Power Connector

4

Procedural Steps

6

Network Support Customer Plan

7

Table of Contents

9

Preface MN/SNM1010L.OM

10

Figures

12

Trademarks

15

Electrical Safety

15

Environmental

15

Installation

16

European EMC Directive

18

Warranty Policy

19

Limitations of Warranty

19

Exclusive Remedies

19

Disclaimer

19

Chapter 1. INTRODUCTION

21

1.1.1 Additional Features

22

1.1.2 Description

23

1.1.2.1 User Port

23

1.2 Options

24

1.2.1 Personality Module

24

Carrier acquisition

25

1.4 General Specifications

26

1.5 Modulator Specification

28

1.7 DAC Specifications

29

Parameter Specifications

30

0 to 50°C (32 to 122° F)

30

Introduction MN/SNM1010L.OM

33

1.11 Dimensional Envelope

34

Chapter 2. INSTALLATION

35

2.2 Hardware Installation

36

Installation MN/SNM1010L.OM

37

2.3 Rear Panel Connections

38

2.3.4 Data Interfaces

42

2.3.4.3 V.35 Specifications

43

2.3.5 User Port

46

2.3.7 RX IF Input (CP2)

46

2.3.9 Power

47

2.3.9.1 AC Power

47

2.3.9.2 DC Power

47

2.4 MIDAS Node Installation

48

Chapter 3. FRONT PANEL

49

3.1.1 LED Indicators

50

3.1.2 Front Panel Keypad

51

3.2 Menu System

52

3.2.1 OPENING SCREEN

52

3.3 Front Panel Menu

53

(FUTURE OPTION)

56

CARRIER MODE

58

NORMAL-MODULATED

58

MODEM REFERENCE

58

INTERNAL

58

RX-V QPSK 1/2

61

19.200 kbps

61

RX-IF FREQUENCY

61

1200.000000 MHZ

61

LNB VOLTAGE

65

LNB 10 MHZ REF

65

RS DECODER

66

CONFIGURATION

67

INTERFACE

67

TX CLOCK SOURCE

67

SCT (INTERNAL)

67

TX CLOCK PHASE

68

EXT-CLK FREQ

68

1544.000 KHZ

68

BUFFER CLOCK

69

RX (SATELLITE)

69

RX CLOCK PHASE

69

B-BAND LOOP BACK

70

3.4.1.4 CONFIGURATION:SAVE

72

FUNCTION SELECT

76

FAULTS/ALARMS

76

MODULATOR

77

+

77

DEMODULATOR

78

+-++

78

TX INTERFACE

79

RX INTERFACE

80

OUTDOOR UNIT

81

STORED FLTS/ALAMS

82

Reed-Solomon option only

86

UTILITY

87

TRANSMIT FILTERS

88

TX TERMINAL LO

88

0 MHZ MIX:

88

MOD POWER OFFSET

89

+ 0.0 dB

89

MODULATOR TYPE

89

INTELSAT OPEN

89

3.4.5.6 UTILITY:INTERFACE

97

3.4.5.7 UTILITY:NETWORK

100

3.4.5.8 UTILITY:SYSTEM

101

MASTER RESET

106

HARD/SOFT

106

106

3.4.5.9 UTILITY:MODEM TYPE

107

CURRENT VERSION

108

REV EMULATION

108

MODEM OPTIONS

109

Chapter 4. USER PORT

119

OPERATION

119

4.2.1 User Port Modem

120

4.2.2 Remote Site Modem

120

4.3 SNM-1010L Commands

121

4.3.1 Character Set

121

4.3.3 Message Structure

121

4.3.3.1 Prefix

121

4.3.3.2 Message Body

122

4.3.3.3 End Character

122

4.3.3.4 Case Sensitivity

122

4.3.3.5 Delimiters

122

4.3.3.6 End Character

122

4.3.3.7 Queries

123

4.3.4 Node Address (NA)

123

4.3.4.1 Command Format

123

4.3.13.1 Help Screen

127

4.3.13.2 Flash Updates

128

4.3.13.3 PDREM Ram

128

Chip Select Test Pass”

129

4.3.16 Data Call

131

4.3.16.1.1 Command Format

131

4.3.16.2.1 Command Format

132

4.3.17 Terminate (TE)

133

4.3.17.1 Command Format

133

4.3.18 Port Redirection

133

4.3.19.1 Command Format

134

Chapter 5. CLOCKING

151

OPTIONS

151

5.1.2 Master/Slave

152

5.1.4 Transmit Clock Source

155

5.2 Buffering

157

Figure 5-3. Clock Slip

158

Figure 5-4. Doppler Shift

159

5.2.1 Buffer Size

160

5.2.1.1 Doppler

160

5.2.1.2 Plesiochronous

161

5.2.1.3 Total Buffer Length

162

5.2.2.1 Bits to Seconds

162

5.2.2.2 Seconds to Bits

162

Chapter 6. THEORY OF

163

BLOCK DIAGRAM

164

6.1.1 Specifications

165

6.1.2 Theory of Operation

165

6.1.2.1 User Port

166

6.2 Monitor and Control

167

6.2.1 Non-Volatile Memory

167

6.2.2 User Port

167

6.3 Modulator

168

6.3.1 Theory of Operation

170

6.3.1.1 Burst Mode

170

6.3.1.2 Continuous Mode

171

± 1 x 10

172

6.3.2.1 BPSK Encoding

173

6.3.2.2 QPSK Encoding

174

6.3.2.3 OQPSK Encoding

174

6.3.2.4 8PSK Encoding

175

6.4 Demodulator

175

6.4.1 Theory of Operation

176

6.4.1.1 Continuous Mode

176

6.5.1 Introduction

177

Chapter 7. SYSTEM

181

CHECKOUT

181

7.1.1 System Faults/Alarms

182

7.2 Fault Tree

183

7.2.1 Faults/Alarms Display

187

7.2.2 Faults/Alarms Analysis

187

7.2.2.1 Modulator Faults

188

7.2.2.1.1 Modulator Checkout

189

7.2.2.2 Demodulator Faults

192

WITH NOISE

194

WITHOUT NOISE

194

7.2.2.6 Outdoor Unit Faults

198

Appendix A. REMOTE CONTROL

199

SPECIFICATIONS

199

Command:

202

(MPO_)

202

A.4 Configuration Status

212

Modulator Output Power

213

A.5 Modem Faults Status

217

A.8 Stored Faults

222

A.9 Miscellaneous

234

A.10.1 Messages from NMS

238

A.11 List of Cause Codes

239

Appendix B. SPECIFICATIONS

243

SNM-1010L

244

B.3.2 Frequency Reference

245

B.3.4 Modulator Phase Noise

245

B.3.18 Control and Monitor

248

B.3.19 Current Sense

248

B.3.20.1 Transmit Preamble

248

B.3.20.2 Transmit Packet

248

B.3.20.3 Transmit Postamble

249

B.3.21.1.1 BPSK Encoding

249

B.3.21.1.2 QPSK Encoding

249

B.3.21.1.3 OQPSK Encoding

250

B.3.21.1.4 8PSK Encoding

250

B.3.21.3 Scrambling Types

251

B.3.21.5 BPSK Bit Ordering

252

B.3.22.2 Descrambling Types

253

B.3.22.4 BPSK Bit Ordering

253

B.3.22.7 Receive Frequency

254

300L_levels.xls

255

B.3.22.10 Input Overload

256

B.4 Acquisition

257

B.4.1 Acquisition Time

257

B.7 Maintenance Philosophy

260

B.8 BUC FSK Communications

261

B.9 Transmission Interface

262

B.11 Power Class

263

METRIC CONVERSIONS

265

Units of Length

265

Temperature Conversions

265

Units of Weight

265

480 • 333 • 2200 PHONE

266

480 • 333 • 2161

266

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