manuais Comtech EF Data SNM-1002

Comtech ef data SNM-1002 Manual do Utilizador (170 páginas)

Marca: Comtech-ef-data | Categoria: Equipamento | Tamanho: 1.00 MB |

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Índice

LinkSync Modem

1

LinkSync™ Modem

3

Procedural Steps

4

Preface MN/SNM1002.om

5

Table of Contents

9

Preface MN/SNM1002.OM

10

Figures

12

IMPORTANT

13

Installation

15

Warranty Policy

17

Limitations of Warranty

17

Exclusive Remedies

17

Disclaimer

17

Chapter 1. INTRODUCTION

19

1.2 Mode of Operation

20

1.2.1 Description

21

Introduction MN/SNM1002.OM

22

1.3 Options

23

1.4 Specifications

24

1.4.1 Summary Specifications

24

1.5.1 BER Threshold

27

1.7 Dimensional Envelope

29

Chapter 2. INSTALLATION

31

2.2 Installation

32

Installation MN/SNM1002.OM

33

2.3 Rear Panel Connections

37

2.3.6 AC Power Connector

39

2.3.7 DC Power - Optional

39

Chapter 3. OPERATION

41

3.1.1 LED Indicators

42

3.1.2 Front Panel Keypad

43

3.2 Menu System

44

3.3 Front Panel Menu

45

3.4 OPENING SCREEN

46

CONFIGURATION

47

MODULATOR

47

Operation MN/SNM1002.OM

48

SCRAMBLER

49

DIFF. ENCODER

49

CARRIER MODE

50

NORMAL-MODULATED

50

MODEM REFERENCE

50

INTERNAL

50

DEMODULATOR

51

RX-IF FREQUENCY

51

70.000000 MHZ

51

SWEEP RANGE

54

60000 HZ

54

REACQUISITION

54

0 SECONDS

54

INTERFACE

55

TX CLOCK SOURCE

55

SCT (INTERNAL)

55

TX CLOCK PHASE

56

EXT-CLK FREQ

56

1544.000 KHZ

56

RX (SATELLITE)

57

RX CLOCK PHASE

57

BUFFER CLOCK

57

B-BAND LOOP BACK

58

BUFFER SIZE

59

0 (BYPASS)

59

BUFFER CENTER

59

3.4.1.4 CONFIGURATION:SAVE

60

3.4.2.1 MONITOR:RAW BER

61

3.4.2.3 MONITOR:EB/NO

61

3.4.2.6 MONITOR:BUFFER FILL

62

FUNCTION SELECT

63

FAULTS/ALARMS

63

+

64

+-++

64

TX INTERFACE

65

65

RX INTERFACE

66

STORED FLTS/ALAMS

68

TX INTERFACE X

70

STORED TIME/DATE

70

(FAULT LABEL)

70

RX INTERFACE X

71

UTILITY

73

3.4.5.1 UTILITY:MODULATOR

74

3.4.5.2 UTILITY:DEMODULATOR

76

3.4.5.3 UTILITY:INTERFACE

79

3.4.5.4 UTILITY:SYSTEM

83

3.4.5.4.1 SYSTEM:TIME/DATE

83

3.4.5.4.4 SYSTEM:REMOTE TYPE

84

3.4.5.4.9 SYSTEM:SELF TEST

86

3.4.5.4.14 SYSTEM:DEMO MODE

87

3.4.5.5 UTILITY:MODEM TYPE

88

MODEM OPTIONS

91

Chapter 4. THEORY OF

95

4.1.2 Uplink Power Control

97

4.2.1 Theory of Operation

98

4.3 Modulator

99

4.3.2 Theory of Operation

102

± 1 x 10

103

± 0.5 dB to

103

4.3.3.1 BPSK Encoding

104

4.3.3.2 QPSK Encoding

104

4.4 Demodulator

105

4.4.2 Theory of Operation

107

Chapter 5

109

MAINTENANCE

109

5.1.1 Interface Checkout

110

5.1.2 Modulator Checkout

111

Maintenance MN/SNM1002.OM

113

5.1.3 Demodulator Checkout

114

WITH NOISE

115

WITHOUT NOISE

115

5.2 Fault Isolation

116

5.2.1 System Faults/Alarms

116

5.2.2 Faults/Alarms Display

120

5.2.3 Faults/Alarms Analysis

120

5.2.3.1 Modulator Faults

121

5.2.3.2 Demodulator Faults

122

Appendix A. REMOTE CONTROL

127

OPERATION

127

A.2 Message Structure

128

A.2.1 Start Character

128

A.2.2 Device Address

128

A.2.3 Command/Response

129

A.2.4 End Character

129

Command:

130

A.3.2 Demodulator

132

A.3.3 Interface

134

A.3.4 System

136

Modulator Output Power

138

AUPC Local Power Enable

138

ISP_xxxxxx'cr'

139

A.4.1 Error Performance

147

A.5 Stored Faults

151

METRIC CONVERSIONS

169

Units of Length

169

Temperature Conversions

169

Units of Weight

169

480 • 333 • 2200 PHONE

170

480 • 333 • 2161

170

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