Radyne DMDVB20 LBST Instruções de Operação Página 77
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Maintenance and Troubleshooting DMDVB20 LBST Satellite Modem
6-4 TM138 – Rev. 1.0
6.1.1.4 Minor Rx Alarms
Alarm Possible Cause
BUFF UNDERFLOW Indicates that a Doppler Buffer underflow has occurred.
BUFF NEAR EMPTY Indicates that the Doppler Buffer is about to underflow.
BUFF NEAR FULL Indicates that the Doppler Buffer is about to overflow.
BUFF OVERFLOW Indicates that a Doppler Buffer overflow has occurred.
RX DATA ACTIVITY Indicates that there is no Rx Data activity. For the Ethernet
Interface, indicates that no Ethernet port is active (no cable
is plugged in).
SAT AIS Indicates that AIS has been detected in the receive satellite
data stream.
IFEC LOCK Indicates that the Inner Codec is not locked.
OFEC LOCK Indicates that the Reed-Solomon Decoder is not locked.
EBNO (dB) Indicates that the Eb/No is outside of limits.
6.1.1.5 Common Major Alarms
Alarm Possible Cause
TERR FPGA CFG Indicates an Interface Card FPGA configuration failure probably
caused by a missing, or wrong file.
CODEC FPGA CFG Indicates Turbo Codec Card FPGA configuration failure probably
caused by a missing, or wrong file.
+1.5V RX SUPPLY Displays the measured voltage of the 1.5 Volt Rx power bus located
inside the modem.
+1.5V TX SUPPLY Displays the measured voltage of the 1.5 Volt Tx power bus located
inside the modem.
+3.3V SUPPLY Displays the measured voltage of the +3.3 Volt power bus located
inside the modem.
+5V SUPPLY Displays the measured voltage of the +5 Volt power bus located
inside the modem.
+12V SUPPLY
Displays the measured voltage of the +12 Volt power bus located
inside the modem.
+20V SUPPLY
Displays the measured voltage of the +20 Volt power bus located
inside the modem.
EXT CLOCK ACT Indicates that the External Clock is not active.
EXT REF ACT
Indicates no activity on the External Reference.
EXT REF LOCK
Indicates that the External Reference PLL is not locked.
- DMDVB20 LBST 1
- Warranty Policy 2
- Preface 4
- Trademarks 5
- Copyright 5
- Disclaimer 5
- Record of Revisions 5
- Table of Contents 6
- TM138 – Rev. 1.0 ix 8
- TM138 – Rev. 1.0 xi 10
- Introduction 12
- 1.1.1 Feature Upgrades 13
- 1.1.3 Hardware Options 13
- 1.2 Function Accessibility 13
- TM138 – Rev. 1.0 1-3 14
- Installation 15
- 2.1 Unpacking 16
- 2.2 Removal and Assembly 16
- 2.3 Mounting Considerations 17
- 2-4 TM138 – Rev. 1.0 18
- 2.5 Modulator Checkout 19
- 2.5.1 Initial Power-Up 19
- 2.6 Storage 19
- 2-6 TM138 – Rev. 1.0 20
- Theory of Operation 21
- 3-2 TM138 – Rev. 1.0 22
- 3.1.1 Front Panel 24
- 3.1.2 Baseband Processing 24
- TM138 – Rev. 1.0 3-5 25
- 3-6 TM138 – Rev. 1.0 26
- 3.3 Internal Clock 27
- TM138 – Rev. 1.0 3-9 29
- 3.5 Clocking Options 30
- 3.5.1 TX Clock Options 30
- 3.5.2.1 RX SAT Clock 32
- 3.7.3 Interleaving 33
- 3-14 TM138 – Rev. 1.0 34
- TM138 – Rev. 1.0 3-15 35
- 3-16 TM138 – Rev. 1.0 36
- User Interfaces 37
- 4.1.3 Numeric Keypad 38
- 4.2 Parameter Setup 40
- 4.3.1 Main Menus 40
- TM138 – Rev. 1.0 4-5 41
- 4-6 TM138 – Rev. 1.0 42
- TM138 – Rev. 1.0 4-7 43
- 4-8 TM138 – Rev. 1.0 44
- TM138 – Rev. 1.0 4-9 45
- 4-10 TM138 – Rev. 1.0 46
- TM138 – Rev. 1.0 4-11 47
- 4-12 TM138 – Rev. 1.0 48
- TM138 – Rev. 1.0 4-13 49
- 4-14 TM138 – Rev. 1.0 50
- TM138 – Rev. 1.0 4-15 51
- 4-16 TM138 – Rev. 1.0 52
- TM138 – Rev. 1.0 4-17 53
- 4-18 TM138 – Rev. 1.0 54
- TM138 – Rev. 1.0 4-19 55
- 4-20 TM138 – Rev. 1.0 56
- TM138 – Rev. 1.0 4-21 57
- 4-22 TM138 – Rev. 1.0 58
- TM138 – Rev. 1.0 4-23 59
- 4-24 TM138 – Rev. 1.0 60
- TM138 – Rev. 1.0 4-25 61
- 4-26 TM138 – Rev. 1.0 62
- TM138 – Rev. 1.0 4-27 63
- 4-28 TM138 – Rev. 1.0 64
- 4.4 Terminal Mode Control 65
- 4.6 Connecting the Terminal 66
- 4.7 Terminal Screens 66
- TM138 – Rev. 1.0 4-31 67
- Rear Panel Interfaces 68
- 5-2 TM138 – Rev. 1.0 69
- 5.3.5 EXT CLK (J16) 70
- 5.3.7 (J18) 70
- 5.3.8 EIA-530 (J19) 71
- 5.3.9 REMOTE (J20) 72
- 5-6 TM138 – Rev. 1.0 73
- 6.0 Periodic Maintenance 74
- 6.0.1 Clock Adjustment 74
- 6.1 Troubleshooting 74
- 6.1.1 Alarm Faults 75
- 6.1.1.1 Major Tx Alarms 75
- 6.1.1.2 Major Rx Alarms 76
- 6.1.1.3 Minor Tx Alarms 76
- 6.1.1.4 Minor Rx Alarms 77
- 6.1.1.5 Common Major Alarms 77
- TM138 – Rev. 1.0 6-5 78
- 6-6 TM138 – Rev. 1.0 79
- Technical Specifications 80
- 7.2 Demodulator 81
- 7.3 Monitor and Control 81
- TM138 – Rev. 1.0 7-3 82
- 7-4 TM138 – Rev. 1.0 83
- 7.8.2 DVB 84
- 7-6 TM138 – Rev. 1.0 85
- TM138 – Rev. 1.0 7-7 86
- 7-8 TM138 – Rev. 1.0 87
- TM138 – Rev. 1.0 7-9 88
- Product Options 89
- A-2 TM138 – Rev. 1.0 90
- B.0 Introduction 91
- B.1 Required Equipment 91
- B.2 Upgrade Procedure 91
- B-2 TM138 – Rev. 1.0 92
- B.3 Demonstration Procedure 93
- B-4 TM138 – Rev. 1.0 94
- TM138 – Rev. 1.0 95
- B-6 TM138 – Rev. 1.0 96
- Carrier Control 98
- C.5 Carrier RTS 99
- TM138 – Rev. 1.0 C-3 100
- Strap Codes 101
- D.1 Sample Applications 104
- TM138 – Rev. 1.0 D-5 105
- D-6 TM138 – Rev. 1.0 106
- TM138 – Rev. 1.0 D-7 107
- Glossary 108
- G-2 TM138 – Rev. 1.0 109
- TM138 – Rev. 1.0 G-3 110
- G-4 TM138 – Rev. 1.0 111
- TM138 – Rev. 1.0 G-5 112
- G-6 TM138 – Rev. 1.0 113
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