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NMS-4000
Network Management System
P/N 2349-72712-01 Page 10-1
10. STAT-MUX
10.1. General
The CODICO
®
SM-3000 Statistical Multiplexer is used for controlling the bit rate of the data
flow in the system. The SM-3000 protects the multiplexer from data overflow by automatically
adjusting the Encoders bit rate. The SM-3000 also divides the total bit rate capacity of the
Multiplexer between the encoders by inspecting the video data contents in each encoder.
The NMS-4000 sends the SM-3000 information about the system configuration, changes in
the system devices and the maximum available bit rate of the Mux.
10.2. Typical Applications
The examples in paragraphs 10.2.1 and 10.2.2 show a system with three encoders and a
Mux. The three encoders output are connected to the Mux. The examples illustrate the
STAT-MUX effect on the data flow in the system.
10.2.1. NMS Controlled System
Figure 10-1 illustrates an example of a data overflow in the multiplexer. The system has three
encoders with a constant bit rate that connects to a Mux. The encoders bit rate is not
controlled by the SM-3000. The overall bit rate that the Mux receives (40Mbps) is higher then
its maximum bit rate (35Mbps). The encoders bit rate on the example is not optimally divided
between the programs. An action movie obviously requires more bit rate then a single
freezed frame.
Figure 10-1: Multiplexer Data Overflow Example
15 Mbps
a single
freezed
frame
News
Broadcast
action
movie
15 Mbps
10 Mbps
40 Mbps
Control
Max Bit Rate = 35 Mbps
NMS
Control
Control
Control
Constant Bit Rate (CBR)
Constant Bit Rate (CBR)
Constant Bit Rate (CBR)
Over Flow Error!
- NMS-4000 1
- Introduction 3
- Manual Scope and Structure 3
- Conventions and Terminology 3
- Using Windows 2000 4
- Multiple Document Interface 4
- About this Document 4
- Technical Support 4
- How to Return Faulty Parts 5
- WARRANTY 6
- TABLE OF CONTENTS 7
- User Manual 10
- Front Matter 10
- LIST OF FIGURES 11
- LIST OF TABLES 14
- 1. OVERVIEW 17
- NMS 4000 22
- Management 24
- System System 25
- Site Management 26
- 1.4. Product Line 28
- 1.5. Functional Description 29
- 1.5.2. SNMP Support 30
- 1.5.3. Redundancy 31
- 1.5.4. In-Bound Control 31
- 1.6.1. System Configuration 33
- 1.6.2. System Requirements 34
- 2. INSTALLATION 35
- 2.2.3. System Directory 36
- 2.2.5. NMS Navigator 37
- Device Bin 38
- Tool Bar 38
- Menu Bar 38
- 2.3.2. Matrix Configuration 39
- 2.3.7. System Configuration 55
- Region Map 59
- Edit Box 68
- Device List 68
- Index numbers 68
- 2.5.2.3. Dialog Commands 69
- 2.5.3. External Devices 69
- External 70
- Devices 70
- 2.5.4.2. Dialog Components 71
- 2.5.4.3. Dialog Commands 72
- 2.5.5. SNMP Communication 73
- 2.5.5.2. Dialog Components 73
- 2.5.5.3. Dialog Commands 74
- 2.6.3. Remote Management 76
- 3. OPERATION 79
- 3.2. Getting Started 80
- 3.3. Logging Procedures 81
- 3.3.1. Change User Password 82
- 3.3.2. Add/Edit Users 82
- 3.3.3. Delete Users 82
- Graphical 83
- User Interface 83
- Configuration 84
- Devices 86
- Redundancy 86
- 3.4.4. Common Properties 92
- 3.4.4.1. Status Indicator 92
- 3.4.4.2. Context Menu 92
- 3.4.4.3. Set Button 92
- IMPORTANT 93
- NMS encoders nomber 96
- 3.6.2. Enabling the Encoder 97
- 3.6.3. Disabling the IRD 98
- 3.6.4. Enabling the IRD 99
- NMS-4000 101
- Network Management System 101
- 4. ENCODER MANAGEMENT 103
- 4.2. General Dialog Box 104
- 4.3. Audio Dialog Box 106
- WARNING 107
- 4.4. Video Dialog Box 108
- 4.5. Data Dialog Box 110
- 4.6. Alarms Dialog Box 112
- 5. MULTIPLEXER MANAGEMENT 115
- Selectors 116
- Input Status Check Boxes 116
- 5.3. Configuration Dialog 117
- 5.4. Scrambling Dialog 119
- 5.5. Alarm Dialog 120
- 5.6. Remux Dialog 122
- 6. IRD MANAGEMENT 125
- NOTE (þ*) 130
- 6.7. IRD Data Configuration 143
- 7. MATRIX MANAGEMENT 149
- 7.2.2. Setting Input Text 150
- 7.2.3. Setting Output Text 151
- 7.2.4. Setting Connections 151
- 8. MODULATOR MANAGEMENT 155
- 8.2.1. Configuration Dialog 156
- 8.2.2. Alarms Dialog 159
- 8.3.1. Configuration Dialog 160
- 8.3.2. General Dialog 162
- 8.3.3. Alarms Dialog 162
- 8.4. Newtec Modulator Type 163
- 8.4.4. Status Dialog 169
- 9. DECRYPTOR MANAGEMENT 171
- 9.2. Programs Configuration 172
- 9.3. Slots Status 173
- 9.4. Input 173
- 9.5. Alarms 176
- 9.6. Versions 177
- 9.7. Lable 177
- 10. STAT-MUX 179
- 10.3. Mode of Operation 180
- 11. REDUNDANCY 183
- 11.2.3. Redundancy Process 184
- 11.3. Managing Redundancy 186
- 12. NMS NAVIGATOR 191
- 12.2. Master NMS Mode 192
- 12.2.1. Master NMS Menu 193
- 12.2.2. Master NMS Tool Bar 194
- 12.3. Site Manager Mode 196
- 12.3.1. Site Manager Menu 197
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