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CP524
User Manual
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Nevion CP524 User Manual

CP524 TS Adapter
User’s Manual
Revision: 2.0.0 (4255)
2013-11-20
Valid for SW version 2.0.0 and newer
Contents
1 History 11
2 Introduction 13
2.1 Scope 13
3 Short Product Description 15
4 Installing the Equipment 19
4.5.1 AC power supply 21
4.5.2 Dual AC power supplies 21
4.5.2.1 AC power cable 21
4.5.2.2 Protective Earth/technical Earth 22
4.5.2.3 Connecting to the AC power supply 22
4.5.3 DC power supply 23
4.5.3.1 DC power cable 23
4.5.4 Powering up/down 23
5 Functional Description 25
5.5.1 Input and output 26
5.5.2 Protocol mapping 26
5.6.1 Graphical user interface 27
5.6.2 Configuration database 28
5.6.3 Alarm manager 28
5.8 TSP Module 29
5.8.1 PID Router 30
5.8.2 PSI/SI/PSIP section filter 31
5.8.3 PSI/SI/PSIP playout module 31
5.8.4 Output Priority Queue 32
5.8.5 Bitrate shaping algorithm 35
5.8.6 TS Builder - Service and PID routing 35
5.9 PSI/SI/PSIP playout 37
5.9.1 Main configuration 38
5.9.2 Carousel priorities 38
5.9.3 Carousel bitrate 38
5.9.4 Bitrate saturation handling 39
5.9.5 Configurable back-log time 40
5.10 Programming Metadata Communication Protocol (PMCP) 41
5.11 Service fallback 41
5.11.1 General 42
5.11.2 Details on confirm timeout handling 44
5.11.3 Manual switching on GPI 45
5.12 Hitless switching 46
5.13 Redundancy controller 47
5.13.1 Operation 48
6 Physical Description 51
6.1 Connecting the CP524 51
6.1.1 Physical description overview 51
6.1.2 ASI ports 51
6.1.3 ASI input ports 52
6.1.4 ASI output ports 52
6.1.5 1 PPS Input 52
6.1.6 Alarm/Reset 52
6.1.7 Electrical Ethernet data ports 53
6.1.8 Ethernet management port 53
6.1.9 The SFP module 53
6.1.10 Serial USB interface 54
6.1.11 Power Supply 54
6.1.12 Technical Earth 54
7 Operating the Equipment 55
7.1 Accessing the graphical user interface 55
7.2 Password protection 55
7.2.1 Resetting the password list 56
7.3 Changing the IP address of the unit 56
7.3.1 Changing IP address via the Web GUI 56
7.3.2 Changing the management port IP address via terminal interface 57
7.3.3 Configuring automatic IP address assignment 58
7.3.4 Detecting the management port IP address 59
7.3.4.1 USB Interface 59
7.3.4.2 Nevion Detect 59
8 WEB Interface 61
8.1 Login 61
8.3 Status 63
8.3.1 Current Status 63
8.3.2 Alarm log 65
8.4.1 Product info 67
8.4.2 Alarms 69
8.4.2.1 Device alarms 69
8.4.2.2 Global configuration 70
8.4.2.3 Relays and LED 71
8.4.2.4 Alarm log settings 73
8.4.3 Port Mappings 74
8.4.4 Time Settings 75
8.4.5 Network 78
8.4.5.1 Interfaces 79
8.4.5.1.1 Main 79
8.4.5.1.2 Interface Settings 80
8.4.5.1.3 DHCP Settings 80
8.4.5.1.4 DHCP Status 81
8.4.5.1.5 Manual IP Settings 82
8.4.5.1.6 Interface Status 82
8.4.5.1.7 Detect Settings 83
8.4.5.1.8 Alarms 83
8.4.5.1.9 Advanced 83
8.4.5.1.10 Status 84
8.4.5.1.11 VLAN 86
8.4.5.1.12 Main Settings 86
8.4.5.1.13 Manual IP Settings 87
8.4.5.1.14 Advanced Settings 87
8.4.5.1.15 DHCP settings and status 87
8.4.5.1.16 SFP 87
8.4.5.2 DNS Settings 96
8.4.5.3 IP Routing 96
8.4.5.4 TXP Settings 97
8.4.5.5 SNMP Settings 98
8.4.5.6 Tools 99
8.4.5.6.1 Ping 100
8.4.5.6.2 Traceroute 101
8.4.6 Clock Regulator 102
8.4.6.1 Main 103
8.4.6.2 Alarms 104
8.4.7 Save/Load Config 104
8.4.7.1 Save/Load Configs 104
8.4.7.1.1 Save Configuration 104
8.4.7.1.2 Load Configuration From file 105
8.4.7.1.3 Load Configuration from Remote Device 106
8.4.7.1.4 Load options 106
8.4.7.2 Boot Log 107
8.4.7.3 Stored Configs 107
8.4.8 Maintenance 109
8.4.8.1 General 109
8.4.8.2 Software Upgrade 111
8.4.8.3 Feature Upgrade 112
8.4.9 Users 113
8.4.10 GUI Preferences 114
8.5 Inputs 115
8.5.1 Inputs Overview 115
8.5.1.1 IP Inputs 117
8.5.1.2 Switch Inputs 118
8.5.2 Input 119
8.5.2.1 Main 120
8.5.2.2 Alarms 122
8.5.2.3 IP 127
8.5.2.3.1 RTP/IP Diversity Reception 129
8.5.2.3.2 FEC 132
8.5.2.3.3 Ping 133
8.5.2.3.4 Regulator 134
8.5.2.4 Services 137
8.5.2.5 PIDs 140
8.5.2.6 Tables 142
8.5.2.7 Tables 143
8.5.2.8 Settings 144
8.5.2.9 Sources 146
8.5.3 Switch 147
8.5.3.1 Main 147
8.5.3.2 Alarms 149
8.6 Outputs 149
8.6.1 Outputs Overview 149
8.6.2 Output 150
8.6.2.1 Main 151
8.6.2.2 Alarms 154
8.6.2.3 IP 154
8.6.2.4 Services 155
8.6.2.5 Service edit dialogue 158
8.6.2.5.1 Service Edit – General 158
8.6.2.5.2 Service Edit - Service Descriptors 162
8.6.2.5.3 Service Edit - Components 164
8.6.2.5.4 Service Edit – Fallback 170
8.6.2.6 PIDs 172
8.6.2.7 Tables 176
8.6.2.7.1 Main 176
8.6.2.7.2 EIT Sch 179
8.6.2.7.3 EIT/ETT Sch 180
8.6.2.7.4 EIT sources 181
8.6.2.7.5 Dynamic PSIP 182
8.6.2.7.6 Static SI 185
8.6.2.7.7 PSI/SI/PSIP editor 186
8.6.2.7.8 PSI/SI Editor 187
8.6.2.7.9 PSIP Editor 193
8.6.2.8 Pri Queue 198
8.6.2.9 Advanced 199
8.6.2.9.1 Automatic PID Remapping 199
8.6.2.9.2 Automatic Service Remapping 202
8.6.2.10 Outgoing 203
8.6.2.10.1 Services 204
8.6.2.10.2 Service Routing 204
8.6.2.10.3 PIDs 205
8.6.2.10.4 Tables 206
8.6.3 Output copies 207
8.6.4 TS-OUT -> IP Destination 207
8.6.4.1 Main 208
8.6.4.2 FEC 211
8.6.4.3 Ping 212
8.7.1 Redundancy Controller 214
8.7.1.1 Device redundancy controller switching 215
8.7.1.2 Communication 215
8.7.1.3 SNMP Switch Actions 218
8.7.2 Service switchers 219
9 SNMP 221
9.3.1 Supported standard MIBs 221
9.3.2 Custom MIBs 221
9.4.1 Community strings 224
9.4.2 Trap destination table 224
9.4.3 Trap configuration 224
9.5.1 The main trap messages 225
9.5.2 Severity indications 225
9.5.3 Alarm event fields 226
9.5.4 Matching of on/off traps 227
9.5.5 Legacy trap messages 227
9.6 Using net-snmp to access MIB information 228
9.6.1 Reading a parameter with snmpget 228
9.6.2 Writing a parameter with snmpset 228
10 Examples of Use 231
10.1 Intro 231
10.2 Installation in a system 231
10.3 Raw PID multiplexing 231
10.4 Simple local insertion of a progam 232
10.5 Sharing of service component 232
10.6 Adding an unsignalled component (Ghost PID) 233
11 Preventive Maintenance and Fault-finding 235
11.1 Preventive maintenance 235
11.1.1 Routine inspection 235
11.1.2 Cleaning 235
11.1.3 Servicing 235
11.1.4 Warranty 236
11.2 Fault-finding 236
11.2.1 Preliminary checks 236
11.2.2 PSU LED not lit / power supply problem 237
11.2.3 Fan(s) not working / unit overheating 238
11.3 Disposing of this equipment 238
11.4 Returning the unit 238
A Glossary 239
B Technical Specification 245
B.1 Physical details 245
B.1.1 Half-width version 245 B.1.2 Full-width (dual power) version 245
B.2 Environmental conditions 245
B.3 Power 246
B.3.1 AC Mains supply 246 B.3.2 DC supply 246
B.4 Input/output ports 247
B.4.1 DVB ASI port 247 B.4.2 SMPTE 310M port 247 B.4.3 Ethernet management port 247 B.4.4 Ethernet data port 247 B.4.5 Serial USB interface 248
B.5 Alarm ports 248
B.5.1 Alarm relay/reset port specification 248
B.6.1 10MHz/1 PPS input 249
B.7.1 Safety 249 B.7.2 Electromagnetic compatibility - EMC 249 B.7.3 CE marking 250 B.7.4 Interface to “public telecommunication system” 250
C Forward Error Correction in IP Networks 251
D Quality of Service, Setting Packet Priority 261
D.1 MPLS 261
D.2.1 CP524 configuration 262
D.3.1 CP524 configuration 262
E Alarms 263
F References 277

1 History

Revision Date Comments
2.0.0 2013-11-01 – Updated with Nevion flavors.
1.0.38 2012-09-11 – Added section about Hitless switching and RTP/IP diversity reception.
1.0 2012-06-20 – First version of manual
History 11
– Added global alarm config chapter. – Added chapters on automatic service ID and PID re-mapping. – Added sections on PMCP format PSIP-EIT/ETT loading (Dynamic PSIP). – Section on generate system report. – Added order codes in list of SW options. – Updated output status header screen shot. – Updated status header screen shot. –
– Updated sections about Embedded redundancy.
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12
CP524 TS Adapter User’s Manual Rev. 2.0.0 (4255) ID: um_tsadapter
Introduction 13

2 Introduction

2.1 Scope

This manual is written for operators and users of the CP524 TS Adapter and provides necessary information for installation, operation and day-to-day maintenance of the unit. The manual covers the functionality of the software version 2.0.0 or later, and continues to be relevant to subsequent software versions where the functionality of the equipment has not been changed. When a new software version changes the functionality of the product, an updated version of this manual will be provided.
The manual covers the following topics:
• Getting started
• Equipment installation
• Operating instructions
• WEB interface description
• Preventive maintenance and fault finding
• Alarm listing
• Technical specifications

2.2 Warnings, cautions and notes

Throughout this manual warnings, cautions and notes are highlighted as shown below:
Warning: This is a warning. Warnings give information, which if strictly observed, will prevent personal injury and death, or damage to personal property or the environment.
Caution: This is a caution. Cautions give information, which if strictly followed, will prevent damage to equipment or other goods.
Note: Notes provide supplementary information. They are highlighted for emphasis, as in this example, and are placed immediately after the relevant text.
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14 Introduction

2.3 Heed warnings

• All warnings marked on the product and in this manual should be adhered to. The manufacturer cannot be held responsible for injury or damage resulting from negli­gence of warnings and cautions given.
• All the safety and operating instructions should be read before this product is in­stalled and operated.
• All operating and usage instructions should be followed.
• The safety and operating instructions should be retained for future reference.

2.4 Contact information

Our primary goal is to provide first class customer care tailored to your specific business and operational requirements.
Please contact us at:
Telephone +47 22 88 97 50
Fax +47 22 88 97 51
E-mail support@nevion.com
WEB http://www.nevion.com
Mail and visiting address Nevion
Nils Hansens vei 2 NO-0667 Oslo Norway
CP524 TS Adapter User’s Manual Rev. 2.0.0 (4255) ID: um_tsadapter
Short Product Description 15

3 Short Product Description

The CP524 is part of the Nevion cProcessor product family for processing and handling of MPEG transport streams. The cProcessor family represents a line of compact and powerful, yet cost-effective, products designed for advanced modification of MPEG Transport Streams.
The CP524 is a Transport Stream Re-multiplexer for regional multiplexing of MPEG transport streams.
The CP524 supports insertion of unsignaled PIDs on the input (Ghost PIDs) into outgoing services.

3.1 Summary of Features

Features of the CP524 include:
• Flexible transport stream processing
− PID and program filtering
− Service component filtering by PID value or by component tag
− Program re-multiplexing (option)
− TS rate adaptation
− Minimum null-packet rate feature
• Powerful PSI/SI/PSIP handling
− PSI/SI regeneration
− Flexible EIT handling
− Zero or configurable minimum null-packet rate by filling up with EIT
• PSI/SI/PSIP editor
− Generate and create custom static PSI/SI/PSIP signalling.
• Transport stream monitoring
− TR 101 290 Priority 1 monitoring: Sync loss, CC error
− Monitoring of min/max bitrate for individual PIDs
− Output PID monitoring (CC errors)
• Flexible alarm configuration options
− Alarm levels freely configurable individually for each channel
− Individual setting of alarm levels based on PID values
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16 Short Product Description
• Multiple unique multiplexer TS outputs
− Up to four unique simultanous TS outputs.
• Compact, cost-effective solution
• User-friendly configuration and control
− WEB/XML based remote control
− Easy access to unit from any WEB browser
− Easy integration to NMS systems with SNMP Trap support
− SNMPv2c agent
− Equipment monitoring from Nevion Connect
• Embedded redundancy controller (Option)
• RTP/IP diversity reception (option)
− Seamless switching between two IP streams from the same source.
• Transmission of transport stream over Gigabit Ethernet
− Forward Error Correction (Option)
• Reception of transport stream over Gigabit Ethernet
− Forward Error Correction (Option)

3.2 Software options

The CP524 functionality depends on the sofware licences installed. The following table describes the features available as software options. Please refer to Section 8.4.8.3 for more information how to obtain and enable feature upgrades.
Table 3.1.a Functionality enabled through software licences
Functionality Code Max
SFP module SFP - Enables operation of the Small form-factor pluggable (SFP)
SFP configuration SFPC - Enables configuration interface and parameter storage for some
Number of input ports activated
Input switching ISW - Enables creation of input switching groups.
TSIX 24 Controls the number of simultaneously activated transport stream
Description
value
transceiver slot.
specifically supported SFP modules.
inputs.
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Short Product Description 17
Table 3.1.b Functionality enabled through software licences
Forward Error Correction FEC - Controls availability of the FEC feature for IP outputs and IP inputs.
RTP/IP diversity reception IDR - Enables configuration of IP diversity reception input pairs.
Service fallback SFB - The feature makes it possible to configure pairs of services where one
is back-up for the other. Switching decision is made based on alarm levels on each service.
PSI/SI/PSIP editor PSIE - Controls availability of built-in PSI/SI/PSIP Editor function in GUI, to
edit tables for static playout.
Output Streams TSOX 4 Controls the number of Transport Stream outputs that can be active
at the same time.
TS MUX MUX - Enables Transport Stream multiplexing with data from more than one
input.
Connect control TCON - Enables supervision of the unit through the Connect Software.
Embedded redundancy controller ER - Availability of on-unit redundancy controller service.
PMCP PMCP 4 Enables support for Program Metadata Communication Protocol, used
for dynamic fetching of PSIP EPG data from an external server.
VCT channel rebranding APU - Enables support for dynamic updating of major and minor channel
number.
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Installing the Equipment 19

4 Installing the Equipment

Caution: The CP524 must be handled carefully to prevent safety hazards
and equipment damage. Ensure that the personnel designated to install the unit have the required skill and knowledge. Follow the instructions for installation and use only installation accessories recommended by the
manufacturers.

4.1 Inspect the package content

• Verify that you received the following items:
− CP524 with correct power supply option
− Power cord(s)
− CD-ROM containing documentation and Flash Player installation files
− Any optional accessories you have ordered
Note: 48 VDC versions do not ship with a power cord; instead a Power D-SUB male connector for soldering to the supply leads is supplied.

4.2 Installation Environment

As with any electronic device, the CP524 should be placed where it will not be subjected to extreme temperatures, humidity, or electromagnetic interference. Specifically, the selected site should meet the following requirements:
• The ambient temperature should be between 0 and 50◦C (32 and 122◦F).
• The relative humidity should be less than 95 %, non-condensing. Do not install the
unit in areas of high humidity or where there is danger of water ingress.
• Surrounding electric devices should comply with the electromagnetic field (EMC) stan­dard IEC 801-3, Level 2 (less than 3 V/m field strength).
• The AC power outlet (when applicable) should be within 1.8 meters (6 feet) of the CP524.
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20 Installing the Equipment
• Where appropriate, ensure that this product has an adequate level of lightning protec­tion. Alternatively, during a lightning storm or if it is left unused and unattended for long periods of time, unplug it from the power supply and disconnect signal cables. This prevents damage to the product due to lightning and power-line surges.
Warning: If the CP524 has been subject to a lightning strike or a power surge which has stopped it working, disconnect the power immediately. Do not re-apply power until it has been checked for safety. If in doubt contact Nevion.

4.3 Equipment installation

The CP524 is designed for stationary use in a standard 19" rack. When installing please observe the following points:
• Route cables safely to avoid them being pinched, crushed or otherwise interfered with. Do not run AC power cables and signal cables in the same duct or conduit.
• The CP524 has all connectors at the rear. When mounting the unit, ensure that the installation allows easy access to the rear of the unit.
• The fans contained in this unit are not fitted with dust/insect filters. Pay particular attention to this when considering the environment in which it shall be used.
• Make sure that the equipment is adequately ventilated. Do not block the ventilation holes on each side of the CP524.

4.4 Ventilation

Openings in the cabinet are provided for ventilation to protect it from overheating and ensure reliable operation. The openings must not be blocked or covered. Allow at least 50 mm free air-space each side of the unit.
Warning: Never insert objects of any kind into this equipment through openings as they may touch dangerous voltage points or create shorts that could result in a fire or electric shock. Never spill liquid of any kind on or into the product.
• This product should never be placed near or over a radiator or heat register. Do not place in a built-in installation (e.g. a rack) unless proper ventilation is provided in accordance with the device airflow design as depicted in Figure 4.1.
• The CP524 may be vertically stacked in 19" racks without intermediate ventilation pan­els. In systems with stacked units forced-air cooling may be required to reduce the operating ambient temperature.
Figure 4.1 shows the air path through the unit, where cool air is taken from the left
hand side, seen from the front.
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Installing the Equipment 21
CP541
Cool
Air In
Warm
Air Out
Figure 4.1 Air path through the unit

4.5 Power supply

The CP524 may be delivered rated for AC or DC operation, respectively.
Warning: This product should be operated only from the type of power source indicated on the marking label. Please consult a qualified electrical engineer or your local power company if you are not sure of the power supplied at your premises.

4.5.1 AC power supply

The CP524 has a wide-range power supply accepting the voltage range 100-240 VAC, 50/60 Hz. Please refer to Appendix B for a detailed specification of the AC power supply.

4.5.2 Dual AC power supplies

Alternatively, the CP524 may be fitted with dual internal wide-range AC power supplies. If so, the size of the cabinet is full-width 19" rack, 1RU. The power supplies cover the voltage range 100-240 VAC, 50/60 Hz.
During normal operation, load-sharing is used between the internal supplies. In case of a single power supply failure alarms will be raised and the unit will continue operating off the second power supply. To guard against failure in the external power circuitry it is imperative to connect each power supply to separate AC mains circuits.
Please refer to
Appendix B for a detailed specification of the AC power supply.
4.5.2.1 AC power cable
Ensure that the AC power cable is suitable for the country in which the unit is to be operated.
Caution: Power supply cords should be routed so that they are not likely to be trod on or pinched by items placed upon or against them. Pay particular attention to cords at plugs and convenience receptacles.
The unit is supplied with a two meter detachable mains supply cable equipped with a moulded plug suitable for Europe, UK or USA, as appropriate. The wires in the mains cable are coloured in accordance with the wire colour code shown in Table 4.1.
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22 Installing the Equipment
Table 4.1 Supply cable wiring colours
Wire UK (BS 1363) EUROPE (CEE 7/7) USA (NEMA 5-15P)
Earth Green-and yellow Green-and yellow Green
Neutral Blue Blue White
Live Brown Brown Black
4.5.2.2 Protective Earth/technical Earth
To achieve protection against earth faults in the installation introduced by connecting signal cables etc., the equipment should always be connected to protective earth. If the mains supply cable is disconnected while signal cables are connected to the equipment, an earth connection should be ensured using the Technical Earth connection terminal on the rear panel of the unit.
Warning: This unit must be correctly earthed through the moulded plug supplied. If the local mains supply does not provide an earth connection do not connect the unit.
Caution: Consult the supply requirements in Appendix B prior to con­necting the unit to the supply.
The unit has a Technical Earth terminal located in the rear panel. Its use is recommended. This is not a protective earth for electrical shock protection; the terminal is provided in order to:
1. Ensure that all equipment chassis fixed in the rack are at the same technical earth potential. To achieve this, connect a wire between the Technical Earth terminal and a suitable point in the rack. To be effective all interconnected units should be earthed this way.
2. Eliminate the migration of stray charges when interconnecting equipment.
Warning: If the terminal screw has to be replaced, use an M4x12mm long pozidrive pan head. Using a longer screw may imply a safety hazard.
4.5.2.3 Connecting to the AC power supply
Warning: Do not overload wall outlets and extension cords as this can
result in fire hazard or electrical shock. The unit is not equipped with an on/off switch. Ensure that the outlet socket is installed near the equipment so that it is easily accessible. Failure to isolate the equipment properly may
cause a safety hazard.
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Installing the Equipment 23
To connect the unit to the local AC power supply, connect the AC power lead to the CP524 mains input connector(s) and then to the local mains supply.

4.5.3 DC power supply

The CP524 can be delivered with a 48 VDC power supply for use in environments where this is required. The DC power supply accepts an input voltage range of 36-72 VDC. Please refer to
Appendix B for detailed specification of the power supply.
4.5.3.1 DC power cable
Units delivered with DC power supply have a 3-pin male D-SUB power connector instead of the standard mains power connector. Also a female 3-pin D-SUB connector is supplied. The pin assignment is shown in Table 4.2. The power cable itself is not supplied.
Table 4.2 DC power connector pin assignment
Pin Placement Specification
1 top + (positive terminal)
2 middle - (negative terminal)
3 bottom Chassis Ground
To connect the unit to the local DC power supply:
1. Use an electronics soldering iron or a hot air workstation to attach the supplied female D-SUB power connector to suitable power leads.
2. Connect the power leads to your local power supply.
3. Connect the DC power connector, with attached power leads, to the CP524 power input connector.

4.5.4 Powering up/down

Before powering-up the unit, please ensure that:
• The unit is installed in a suitable location
• The unit has been connected to external equipment as required
Power up the unit by inserting the power cable connected to the power source. When the unit has finished the start-up procedure, the fans will run at normal speed. Please check that all cooling fans are rotating. If they are not, power down the unit immediately.
Power down the unit by removing the power supply connector at the rear of the unit.
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CP524 TS Adapter User’s Manual Rev. 2.0.0 (4255) ID: um_tsadapter
Functional Description 25
Inputs
Processing
Output
Remote
Control
Configuration
Alarm Log
Alarm traps
1PPS
ASI Input
1-8
IP input
1-16
TSP Module
Multi-input MUX (option) Service Filter PID Filter PID Remap PSI/SI/PSIP regeneration PSI/SI/PSIP modification
HTTP/XML
SNMP
Alarm
Relay
Clock &
Time base
ASI output
1-4
w/rate re-clocking
IP output
1-8 destinations per
output
Optional Second
Power
230VAC/48DC
Power
230VAC/48DC
Input switching
Input port
swiching
IP diversity
switching
Management
Remote control ETR290-1 Monitoring Alarm generation

5 Functional Description

5.1 Introduction

The CP524 is an MPEG Transport Stream Adapter, designed for easy and flexible manipulation of Transport Streams for carriage over ASI, SMPTE 310M or Ethernet connections. The SFP connector can also be used for data carriage. Use of SFP is enabled with a SW licence key.
The product offers an easy-to use WEB based user interface, a flexible and powerful MPEG Transport Stream re-generation module and integration with network management systems via the SNMP interface.
This chapter gives a brief description of the inner guts of the CP524, to give a better under­standing of how the product works, how you use it and what you can use it for.
Figure
5.1 shows a functional block diagram of the main components inside CP524. The different
blocks are described more in detail in the following sections.
Figure 5.1 Product block diagram

5.2 TS inputs

The CP524 can be fitted with up to 8 ASI ports. Each of the ASI ports can be used as either input or output port. When only using IP output, all 8 ASI ports can be used as inputs. In ATSC+DVB configuration mode, SMPTE 310M input format is also supported.
In addition to 8 Transports stream inputs on ASI, a number of Transport streams can be received on either of the Ethernet data interfaces.
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26 Functional Description
The number of TS inputs that can be enabled simultaneously is limited with a SW licence key, making it possible to start with few inputs and then enable more ports when needed. The licence key also covers the transport streams received on Ethernet/IP.

5.3 TS output

The CP524 can generate up to 4 MPEG output Transport Streams. The outputs can be pro­grammed to be presented as ASI on one or more of the physical BNC I/O connectors as described in chapter 6.1.2. In ATSC+DVB configuration mode, SMPTE 310M output is also supported.
The output is always re-clocked, configuring a wanted bitrate for each output multiplex.
The output transport stream can also be transmitted on either of the Ethernet data interfaces.

5.4 Input switching

The CP524 supports combination of several inputs into a prioritized order switching group, where the highest priority source that has sync and no critical alarms, is automatically selected as the source of program data and PSI/SI/PSIP data.
The input switch is itself modelled as an input, so once defined, it can be referred to as the source of programs and PSI/SI/PSIP data when building up the output multiplex. A sync loss on the currently selected source will cause immediate switching to an alternative input in the switching group.
The signals on each of the inputs in a switching group, can be identical or different. Fastest switching times are achieved when the signals are identical with respect to PIDs and services.
The input switching function can be used on both ASI sources and IP sources, or any combina­tions of these. Signal loss detection on IP sources is slower than for ASI sources.
Sources that are members of a switching group cannot be referred to directly.
The input switching feature is protected by a SW licence key.

5.5 Video over IP

5.5.1 Input and output

The CP524 supports MPEG transport streams over IP, input and output.
IP inputs are defined dynamically on need, up to a maximum number that is 16 at the time of writing. Once the IP inputs are defined, they are modelled to have the same functionality as the ASI input ports, and content received will be available to the multiplexer generating the output. The input streams can be either SPTS or MPTS and streams with or without RTP layer are accepted.
The multiplexer can generate 4 output multiplexes and the operator chooses whether to transmit these streams over IP or not. Each transport stream can be transmitted to up to 8 IP destinations.
Two Ethernet interfaces can be used simultaneously for video carriage, the interfaces are bi­directional. When using the SFP slot, one of the Electrical interfaces will be disabled.

5.5.2 Protocol mapping

CP524 TS Adapter User’s Manual Rev. 2.0.0 (4255) ID: um_tsadapter
Functional Description 27
Ethernet
14 bytes
[IEEE 802.3/802.3u]
IP
20 bytes
[RFC 769]
Optional
VLAN
4 bytes
[802.1q]
UDP
8 bytes
(RFC 768)
RTP
12 bytes
(RFC 1889)
1-7 MPEG TS packets
188 – 1316 bytes
[ISO/IEC 13818-1]
Figure 5.2 Protocol mapping
When transmitting and receiving MPEG transport streams over IP, the protocol mapping is according to figure 5.2. The VLAN framing and RTP encapsulation are optional.
The RTP layer is important for diagnosing network related problems, since it contains a sequence number that can be used for packet loss detection.
The maximum transfer unit (MTU) for Ethernet is usually 1500 bytes. This limits the number of transport stream packets to embed into the outgoing Ethernet/IP frames to be between 1 and
7.

5.6 Management sub-system

The management subsystem is a set of modules that handles all the interfaces to monitor and control the operation of the CP524.
The management subsystem communicates with the users, both humans and machines, via the following interfaces:
• Front panel and back panel LEDs for status
• Graphical user interface via Flash application in WEB browser
• SNMP traps on alarms
• SNMPv2c Agent
• TXP (T-Vips XML Protocol) to retrieve and set configuration and status
• Alarm relays on alarms
• SNTP client for real time clock synchronisation
• Terminal interface either over Telnet or USB interface for debugging
• FTP server for direct file system access
The management subsystem communicates with other internal modules to make the unit per­form the wanted operations.

5.6.1 Graphical user interface

Operators monitor and control the CP524 mainly via the Adobe Flash GUI application served from the device’s WEB server. The GUI application is accessed via a WEB browser that com­municates with the configuration framework through an HTTP/XML based protocol.
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28 Functional Description
The device exposes extensive status information to the web GUI providing detailed reports and real-time monitoring displays to the device administrator.
All the device configuration parameters available on the CP524 can be controlled from the web GUI.
5.6.2 Configuration database
The management subsystem processes configuration changes as transactions. All configuration changes made to the device are validated against the current running configuration before committing them to the device. This limits the risks of the administrator implementing changes that may cause down-time on the unit due to incompatible configuration settings.
Configurations can be imported and exported via the GUI. It is possible to clone the entire con­figuration of one device to another by exporting the configuration of one device and importing it to another.
Configurations exported via the web GUI are formatted as human readable/modifiable XML files. These files can be viewed or altered using any standard text or XML editor such as Windows Notepad.
To simplify cloning of devices, certain exported parameters within the XML file are tagged as device specific and therefore will be ignored when imported to either the same device or another. These parameters are as follows:
• Device Name and Inventory ID
• IP network parameters
• ASI Port mappings
• On-device stored configurations

5.6.3 Alarm manager

The CP524 contains an integrated alarm manager responsible for consistently displaying the alarm status of each individual interface.
“Port Alarms” are alarms bound to a specific input or output port via a port indexing system. The alarm severity for port related alarms can be configured per port level. “Device Alarms” are global to the device and are not bound to any specific port. They do not follow the indexing scheme. These are classified as “System Alarms”.
Alarms are graphically represented in a tree structure optimized for simplified individual view­ing and configuration. The “Device Alarm” tree is available from the “Device Info” page. The alarm tree for each port is available on the “Alarms” page for each port.
The alarm manager presents the alarm of highest severity upon the external interfaces of the device. The severity level of each individual alarm can be defined by the administrator. Alarm configuration is covered in greater detail in the “Alarm configuration” section.
SNMP traps are dispatched to registered receivers whenever there is an alarm status change.
Alarm relay 1 and alarm LED are controlled to signal whenever there is a critical alarm present. Alarm relay 2 is configurable.
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Functional Description 29
The alarm manager keeps a log in non-volatile memory of the latest 10000 alarms that have occurred.
As an additional option, the alarm manager in the CP524 supports so-called Virtual Alarm Relays. These are highly programmable items that can be customised to react to virtually any given alarm event or combination of alarm events. The status of each virtual alarm relay can be viewed in the GUI and can also be exported using SNMP. Details on configuring the virtual alarm relays can be found in the WEB interface section.

5.7 Time synchronisation

The CP524 contains an internal real-time clock that is used for all internal timestamps. The internal clock is battery backed up in order to continue operating while the unit has no power.
The internal time can be synchronised as follows:
• Manual setting.
• From one of the ASI/SMPTE 310M ports (using TDT/TOT or STT)
• From NTP servers using SNTP protocol. Up to four NTP servers can be configured for
NTP server redundancy.
More than one clock source may be specified in a prioritised order. If one source fails the next priority source will be used.
The internal clock can be used for generation of TDT/TOT on the output.

5.8 TSP Module

The TS Processor (TSP) module is the heart of the unit. Its job is to create a new MPEG Trans­port Stream based on configuration and current input signals. Figure 5.3 shows the different components in the TSP subsystem.
The lower left hand corner represents the interface between the management subsystem and the TSP subsystem.
The central process in the TSP module is the TS Builder, which handles the logic creating PID routing and regenerate PSI/SI/PSIP based on configuration and current PSI/SI/PSIP tables.
Section 5.8.6 for more details on service and PID routing.
See
The following chapters covers more on the different modules shown in the figure.
Note: The overall architecture of the TSP module, and the description in this chapter, is shared between several products in the cProcessor product family, but not all modules are available on every product.
ID: um_tsadapter CP524 TS Adapter User’s Manual Rev. 2.0.0 (4255)
30 Functional Description
Priority Queue
Playout queues
ASI
ASI
PID Router
Detection
Filter & Remap
PID Router
Detection
Filter & Remap
Ethernet
Ethernet
New PID Routing
with queue
assignments
New PIDs
Table update
Table
update
TCP/IP
TCP/IP
= Process
= Database
= TS packet queue
= Functional block
Management
V/A/D 1
V/A/D 2
V/A/D 15
Stuffing
Playout
mode tables
Player
PSI/SI/PSIP
Input
PSI/SI/PSIP
Downloaded PSI/SI/PSIP
TS
configuration
PSI/SI/PSIP
section
filter
PSI/SI/PSIP
download
server
WEB
server
3
2
PSI/SI/PSIP
Player
Pri 1
MIP
inserter
MIP
Forced
stuffing
MPBN
1
2
21
20
19
18
Flow control
TS
builder
Config updated
17
4
3
PSI/S PIDs
Player 1
Player 2
Player 3
Figure 5.3 TSP module

5.8.1 PID Router

A PID router module tells the TS Builder which PIDs are present.
The router is used by the TS Builder to pass on the correct elementary streams from the input to the output. New PID values can be assigned to any elementary stream. One elementary stream can only be transmitted on an output once, so one input PID can only have one output PID value. This is reflected in the GUI and configuration structure.
TS packets that have a route to the output are travelling on the “main highway” through the unit. This is where video, audio and other service components are passed. Packets that are filtered do not have a route.
The output TS packets carrying PSI/SI/PSIP may either be routed through on the highway, or they are played out through the PSI/SI/PSIP playout module. This is one of the most important details to learn from figure 5.3, since the applied configuration determines the data flow direction.
The PSI/SI/PSIP TS packets on the input can, in addition to being routed on the highway to the output, be routed to the PSI/SI/PSIP section filter module, which is briefly described in section 5.8.2.
Read more about the prioritisation of data in chapter 5.8.4.
CP524 TS Adapter User’s Manual Rev. 2.0.0 (4255) ID: um_tsadapter
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