Radyne QAM256 Instruções de Operação descarregar pdf (Página 40)

QAM256 Digital Video Modulator and Upconverter Maintenance and Troubleshooting

TM077 – Rev. 4.0 6-1

Maintenance and Troubleshooting

6.0 Periodic Maintenance

The QAM256 modulator requires no periodic field maintenance procedures. Should a unit be

suspected of a defect in field operations after all interface signals are verified, the correct

procedure is to replace the unit with another known working QAM256. If this does not cure the

problem, wiring or power should be suspect.

There is no external fuse on the QAM256. The fuse is located on the

power supply assembly inside the case, and replacement is not

intended in the field.

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Digital Video Modulator 1
Warranty Policy 2
Preface 4
Table of Contents 6
TM077 – Rev. 4.0 ix 8
Introduction 10
1-2 TM077 - Rev. 4.0 11
Installation 12
2.2 Removal and Assembly 13
2.3 Mounting Considerations 13
TM077 – Rev. 4.0 2-3 14
Theory of Operation 15
3-2 TM077 - Rev. 4.0 16
User Interfaces 17
4.1.3 Numeric Keypad 18
4.2 Parameter Setup 19
4.3.1 Main Menus 20
TM077 – Rev. 4.0 4-5 21
4-6 TM077 - Rev. 4.0 22
TM077 – Rev. 4.0 4-7 23
4.5 Connecting the Terminal 24
4.6 Terminal Screens 24
Main Menu Screen: 25
4-10 TM077 - Rev. 4.0 26
TM077 – Rev. 4.0 4-11 27
4-12 TM077 - Rev. 4.0 28
TM077 – Rev. 4.0 4-13 29
4-14 TM077 - Rev. 4.0 30
TM077 – Rev. 4.0 4-15 31
4-16 TM077 - Rev. 4.0 32
Rear Panel Interfaces 33
5.3 TX MON Port 34
5.4 TX IF Port 34
TM077 – Rev. 4.0 5-3 35
5.5.1 TX PARALLEL Connector 36
5.5.2 REMOTE Connector 36
5.5.3 TX ASI Connector 36
5.8 Optional DVB Interface 37
5-6 TM077 - Rev. 4.0 38
TM077 – Rev. 4.0 5-7 39
6.0 Periodic Maintenance 40
6-2 TM077 - Rev. 4.0 41
Technical Specifications 42
7.2.1 RF Interface 43
7.2.2 Baseband Interface 43
7.2.3 Remote Interface 43
7.2.4 Physical 43
TM077 – Rev. 4.0 7-3 44
Product Options 45
A-2 TM077 - Rev. 4.0 46
SNMP MIB 47
B-2 TM077 – Rev. 4.0 48
TM077 – Rev. 4.0 B-3 49
B-4 TM077 – Rev. 4.0 50
TM077 – Rev. 4.0 B-5 51
B-6 TM077 – Rev. 4.0 52
TM077 – Rev. 4.0 B-7 53
B-8 TM077 – Rev. 4.0 54
TM077 – Rev. 4.0 B-9 55
Remote Operations 56
C.1.2 Protocol Wrapper 57
TM077 – Rev. 4.0 C-3 58
02h = 00000010b 58
C-4 TM077 – Rev. 4.0 59
RESPONSE OPCODE DESCRIPTION 59
Invalid Control Mode 59
C.1.5 Collision Avoidance 60
C.1.6 Software Compatibility 61
C.1.8 RLLP Summary 62
C-8 TM077 – Rev. 4.0 63
TM077 – Rev. 4.0 C-9 64
C-10 TM077 – Rev. 4.0 65
TM077 – Rev. 4.0 C-11 66
C-12 TM077 – Rev. 4.0 67
TM077 – Rev. 4.0 C-13 68
C-14 TM077 – Rev. 4.0 69
TM077 – Rev. 4.0 C-15 70
C-16 TM077 – Rev. 4.0 71
TM077 – Rev. 4.0 C-17 72
C-18 TM077 – Rev. 4.0 73
TM077 – Rev. 4.0 C-19 74
C-20 TM077 – Rev. 4.0 75
TM077 – Rev. 4.0 C-21 76
C-22 TM077 – Rev. 4.0 77
TM077 – Rev. 4.0 C-23 78
C-24 TM077 – Rev. 4.0 79
TM077 – Rev. 4.0 C-25 80
C-26 TM077 – Rev. 4.0 81
Glossary 82
G-2 TM077 – Rev. 4.0 83
TM077 – Rev. 4.0 84
G-4 TM077 – Rev. 4.0 85
G-6 TM077 – Rev. 4.0 87

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Radyne QAM256 Instruções de Operação Página 40

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