Page 1 CP560 DVB-T2 Gateway User’s Manual Revision: 2.2 (3686) 2012-09-03 Valid for SW version 2.2.0 and newer...
Page 3: Table Of Contents
Contents History Introduction Scope Warnings, cautions and notes Heed warnings Contact information Short Product Description Summary of Features Software options Installing the Equipment Inspect the package content Installation Environment Equipment installation Ventilation Power supply 4.5.1 AC power supply 4.5.1.1 AC power cable 4.5.1.2 Protective Earth/technical Earth 4.5.1.3...
Page 4 Physical Description Connecting the CP560 6.1.1 Physical description overview 6.1.2 ASI ports 6.1.3 ASI input ports 6.1.4 ASI output ports 6.1.5 1 PPS Input 6.1.6 Ethernet Data Ports 6.1.7 SFP port 6.1.8 Power Supply 6.1.9 Ethernet Management Port 6.1.10 Technical Earth 6.1.11...
Page 5 8.4.5.1.6 8.4.5.2 IP Routing 8.4.5.3 TXP Settings 8.4.5.4 SNMP Settings 8.4.5.5 Tools 8.4.6 Clock Regulator 8.4.6.1 Main 8.4.6.2 Alarms 8.4.7 Save/Load Conﬁg 8.4.7.1 Save/Load Conﬁgs 8.4.7.2 Boot Log 8.4.7.3 Stored Conﬁgs 8.4.7.4 Emergency Switch 8.4.8 Maintenance 8.4.8.1 General 8.4.8.2 Software Upgrade 8.4.8.3 Feature Upgrade 8.4.9...
Page 6 8.6.4.3 PLP conﬁguration 8.6.4.3.1 Source bit rate control settings 8.6.4.4 Modulation interface conﬁguration 8.6.4.5 Individual addressing conﬁguration 8.6.4.6 Future Extension Frames conﬁguration 8.6.5 8.6.6 TS-OUT - IP Destination 8.6.6.1 Main 8.6.6.2 8.6.6.3 Ping 8.6.7 Alarms SNMP SNMP agent characteristics MIB naming conventions MIB overview 9.3.1 Supported standard MIBs...
Page 7 Forward Error Correction in IP Networks IP stream distortion Standardisation FEC matrix Transmission aspects Quality of service and packet loss in IP networks Error improvement Latency and overhead Quality of Service, Setting Packet Priority MPLS Layer 3 routing D.2.1 CP560 conﬁguration Layer 2 priority...
Page 8 CP560 conﬁguration Validation of DVB-T2 Parameters T2-Frame E.1.1 T2-Base E.1.2 T2-Lite Physical Layer Pipe Estimated Transmission Time How the CP560 uses the conﬁgured ETT value F.1.1 Example with 2 modulators Implications of adjusting ETT How to set ETT Alarms References...
Page 9: History
– Updated screenshots of the GUI (status/input) 1.6.0 2010-07-20 – Revised version including new features – Added IP output feature – Added individual addressing feature – Updated GUI screenshots 2009-11-17 – First version ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 10 CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 11: Introduction
2 Introduction 2.1 Scope This manual is written for operators and users of the CP560 DVB-T2 Gateway and provides necessary information for installation, operation and day-to-day maintenance of the unit. The manual covers the functionality of the software version 2.2.0 or later, and continues to be relevant to subsequent software versions where the functionality of the equipment has not been changed.
Page 12: Heed Warnings
Please contact us at: Telephone +47 22 88 97 50 +47 22 88 97 51 E-mail support@t-vips.com www.t-vips.com Mail and visiting address T-VIPS AS Nils Hansens vei 2 NO-0667 Oslo Norway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 13: Short Product Description
MPEG Transport Streams. The CP560 is a DVB-T2 gateway that uses the advanced capabilities of the cProcessor family to rearrange the transport stream (TS) into the DVB-T2 modulator interface (T2-MI). In addition to the data, this T2-MI interface contains signalling, control and timing information for the DVB-T2 modulators.
Page 14 SFP (Small Form-Factor Pluggable) interface option Input Switching An input switch may be set as the source of a PLP An input switch may switches between 2 or more inputs CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 15: Software Options
Short Product Description 3.2 Software options The CP560 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.
Page 16 CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 17: Installing The Equipment
D-SUB male connector for soldering to the supply leads is supplied. 4.2 Installation Environment As with any electronic device, the CP560 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).
Page 18: Equipment Installation
Do not re-apply power until it has been checked for safety. If in doubt contact T-VIPS. 4.3 Equipment installation The CP560 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.
Page 19: Power Supply
4.5.1 AC power supply The CP560 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.
Page 20: Connecting To The Ac Power Supply
Failure to isolate the equipment properly may cause a safety hazard. To connect the unit to the local AC power supply, connect the AC power lead to the CP560 mains input connector(s) and then to the local mains supply.
Page 21: Dc Power Cable
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 CP560 power input connector. 4.5.3 Powering up/down...
Page 22 CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 23: Functional Description
Figure 5.1 Product block diagram 5.2 TS inputs The CP560 can include up to 10 ASI ports, 8 of them can be used as input ports and 2 as output ports. The number of simultaneous TS inputs that can be enabled is limited by a software licence key.
Page 24: Ts Output
The CP560 supports MPEG transport streams over IP, the functionality is protected with a separate SW licence. The CP560 has 8 IP inputs, these are modelled to have the same functionality as the ASI input ports, and content received will be available to the DVB-T2 Gateway generating the output. The input streams can be either SPTS or MPTS and streams with or without RTP layer are accepted.
Page 25: Management Sub-System
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...
Page 26: Graphical User Interface
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 CP560 can be controlled from the web GUI. 5.7.2 Conﬁguration database The management subsystem processes conﬁguration changes as transactions.
Page 27: Time Synchronisation
The CP560 contains an internal real-time clock that is used for internal timestamps and the generation of DVB-T2 timestamps for SFN operation. In order to generate precises SFN timestamps, the CP560 needs to be connected to both a NTP timesource (for absolute time in seconds) and 1PPS (for subsecond time).
Page 28 CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 29: Physical Description
6.1.2 ASI ports The CP560 can be shipped with one ASI card with 10 ASI connectors as shown in 6.2. Another conﬁguration includes 8 ASI connectors on the back panel as shown in ﬁgure 6.1. When the CP560 is used with ASI output, one port is reserved for the single supported TS out- put.
Page 30: Asi Input Ports
In the eight ports conﬁguration, each ASI input port has two LEDs associated with it. The yellow LED indicates active input and the green LED indicates that sync is detected. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 31: Asi Output Ports
One LED is used for each ASI output port: A green LED is lit whenever the output is enabled. 6.1.5 1 PPS Input The CP560 comes with a 1 PPS input. Activating the port is a software option that enables the device to operate as a MIP inserter in SFN networks.
Page 32: Sfp Port
6.1.9 Ethernet Management Port The CP560 provides one Ethernet port for control and management. Connect the management port to the management network. The LEDs for the management port are used as follows: 6.1.10 Technical Earth...
Page 33: Serial Usb Interface
The USB interface requires a special COM port driver on the PC that shall communicate with the device. This driver is provided on the product CD shipped with the device. The USB interface is intended for initial IP address setup. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 34 CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 35: Operating The Equipment
7.1 Accessing the graphical user interface The default IP address of the CP560 will most probably not be suitable for the network where the unit will operate. Initially therefore, the user should change the IP address of the management interface so that access may be gained from the network.
Page 36: Resetting The Password List
Figure 7.2. CP560. Conﬁgure the PC to be on the same sub net as the CP560. See 2. Open your web browser and type http://10.0.0.10 in the address ﬁeld of the browser. Log into the GUI with username admin and password salvador.
Page 37: Changing The Management Port Ip Address Via Terminal Interface
Figure 7.1 Conﬁguring network settings via the Web GUI Figure 7.2 Setting static IP address 10.0.0.11 in Windows XP is set to 10.0.0.11/255.255.255.0 which is on the same sub net as the CP560, and does not conﬂict with the IP address of the device.
Page 38 1. Install the USB driver from the product CD (setup_ftdi_usb_drivers.exe). (This step may be omitted if the driver has already been installed.) 2. Connect your computer USB port to the CP560 USB port using a suitable cable. 3. Access the terminal interface using a suitable terminal program, emulating an ANSI terminal, on your PC (e.g.
Page 39: Web Interface
This chapter goes through the diﬀerent GUI pages used to control the CP560 and get status information. 8.1 Login Access the CP560 by entering its IP address in the address ﬁeld of your favourite browser. When accessing the CP560 the ﬁrst time, the progress bar (Figure 8.1) should appear while the Flash...
Page 40: Status Header
Figure 8.3 The status header In the status header the product name is shown on the left hand side, along with the T-VIPS logo. The status bar displays an indicator showing the overall alarm status of the device. The colour of the indicator shows the highest level alarm currently active in the unit.
Page 41: Status
The block diagram provides a compact view of the unit status. It shows: The name of the functional units of the device. The name and alarm status of each input/output port. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 42 This ﬁeld has a tool-tip showing the subid1 and subid2 values for the alarm. Subid1 Reserved for future use in multi-slot chassis and is always set to 1 in the CP560. Subid2 The device or port to which the alarm relates. The value is zero for alarms that are CP560 DVB-T2 Gateway User’s Manual Rev.
Page 43: Alarm Log
SubID 1 The primary numerical index of the alarm instance. This index is reserved for future use and is always set to 1 in the CP560. SubID 2 The secondary numerical index of the alarm instance. When the alarm is of type...
Page 44: Device Info
In the list of physical interfaces in the navigation list, the currently active interface is shown in bold. See Figure 8.7. The exact layout of the navigator depends on the resources and features currently available in the device. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 45: Product Info
Section 8.3.1), and in the web browser title bar to facilitate identiﬁcation of each device. Product name Displays the name of the product as designated by T-VIPS. Serial number The serial number of the device. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 46: Alarms
Global alarm conﬁguration is performed on this page, as well as alarm relay conﬁguration and alarm log conﬁguration. It gives access to the following sub pages: Device Alarms Global conﬁguration CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 47: Device Alarms
Filtered (meaning ignored) to Critical. The text in brackets represents the default setting. Alarm turned on The number of times the alarm has transitioned from oﬀ to on since last reset of the alarm counter. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 48: Global Configuration
Critical, as indicated by the disabled check boxes in Relay and LED level triggers ﬁeld. The current state of the relays and LED is indicated inside the associated brackets. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 49 3. If the count value is larger than or equal ( =) to the value the relay is activated. The expressions are validated before they are accepted by the unit. Table 8.1 shows the ﬁeld values you may enter in an expression. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 50 * 10 = 100 Divide id / 20 = 8 Greater than Less than Greater than or equal = 100 Less than or equal = 100 Some examples are given in Table 8.3. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 51: Alarm Log Settings
The number of ports shown in the port map grid corresponds to the number of physical con- nectors installed in the chassis and the meaning of the diﬀerent choices are: ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 52 Note: The port map settings are tagged to follow the device (see Section 5.7.2, and even though the parameters are exported in the conﬁguration ﬁle format, they are not overwritten when loading a conﬁguration ﬁle via the GUI to another device. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 53: Time Settings
Enabled time sources may be moved to the leftmost list by using the arrow-left button, and back again by using the arrow-right button. Time sources in the left hand list are used by the time ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 54: Network
An interface shown in grey colour means that the interface is disabled. There may be physical interfaces on the unit that are not shown CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 55 Enabled Shows whether the interface is currently enabled. Data Shows whether data traﬃc is currently enabled for this interface. Management Shows whether management traﬃc is currently enabled for this interface. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 56: Interfaces
SFP module for the second data RJ-45 interface. Select to use the data port marked Data for data traﬃc. Select to use the SFP module for data traﬃc. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 57: Alarms
CP560 visible for the T-VIPS Detect on the LAN. If Write option is enabled the IP address of the CP560 may be conﬁgured using the T- VIPS Detect. These options do not aﬀect the operation of the device from the management...
Page 58: Advanced
Ethernet Status ﬁeld: Link speed The detected link speed of the interface. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 59 The number of IP multicast packets received/transmitted by the interface. Broadcast packets The number of broadcast packets received/transmitted. Octets The number of octets received/transmitted Errors ﬁeld: CRC errors Number of packets received with CRC errors. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 60: Vlan
Enable Enable/disable the virtual interface. The VLAN id of this virtual interface. Must be in the range 1-4094. All virtual interfaces on one physical interface must have a unique id. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 61: Sfp
. The two conﬁguration sub-pages reﬂect that separate conﬁguration ﬁles are used to conﬁgure the diﬀerent SFP module types. For each module type the CP560 stores a conﬁguration ﬁle that can be edited “oﬀ-line”. These pages are visible only if SFP conﬁguration has been licensed.
Page 62 WEB Interface Figure 8.21 The Device Info Network SFP tab Figure 8.22 The SFP status page Vendor Shows the vendor name. Revision Indicates the module revision. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 63 Alarm Indication Signal (Line) RDI_L Remote Defect Indication (Line) UNEQ_P Payload Label Mismatch (Path) Loss of Frame AIS_P Alarm Indication (Path) RDI_P Remote Defect Indication (Path) Excessive Error Defect Loss of Point ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 64 Module (type) Error Counters ﬁeld displays errors as they occur, counted during a 15 minute period. = Errored seconds, = Severely errored seconds, = Coding violations, = Line unavailable seconds CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 65 ﬁelds are identical to those described for the Status sub-page. Editing the conﬁguration settings will alter the SFP conﬁguration ﬁle stored in the CP560, only. Figure 8.23 The conﬁguration page for the STM-1/OC-3 SFP module ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 66 Ethernet ﬂow control A tick enables ﬂow control of Ethernet data from the CP560 to the SFP module. Flow control prevents data overﬂow in the SFP module buﬀer. Buﬀer overﬂow leads to data loss that would go unnoticed until attempting to decode the data at the receiving end.
Page 67 ﬁgure Figure 8.24 the page contains four ﬁelds to set operational parameters. Editing the conﬁguration settings will alter the SFP conﬁguration ﬁle stored in the CP560, only. E3/T3 present Indicates if the module has been detected by the CP560.
Page 68 Far end alarm and control indication. Only applicable for a T3 interface using G.751 line protocol. VCAT overhead Only applicable when using the GFP data link protocol. VCAT allows arbitrary grouping of VCAT members (STS1 or STS3c timeslots) to accommodate any bandwidth. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 69 Only applicable when using the GFP data link protocol in a T3 interface. Ethernet ﬂow control A tick enables ﬂow control of Ethernet data from the CP560 to the SFP module. Flow control prevents data overﬂow in the SFP module buﬀer. Buﬀer overﬂow leads to data loss that would go unnoticed until attempting to decode the data at the receiving end.
Page 70: Ip Routing
The IP destination to send a packet to if the destination address of the packet is on a diﬀerent subnet than the destination interface. Interface IP packets matching this rule will be sent through this interface. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 71: Txp Settings
8.4.5.3 TXP Settings Figure 8.26 TXP Settings TXP is a T-VIPS proprietary HTTP/XML based protocol designed to retrieve conﬁguration and status information using WEB/HTTP requests. TXP exists side by side with an SNMP agent and provides an alternative way to access data in a product. TXP and SNMP therefore complement each other.
Page 72: Snmp Settings
Write Below follows a simple example of how to get the units uptime. A description of the TXP protocol can be found on the T-VIPS Product CD, or by contacting T-VIPS Support. http://10.0.0.10/txp_get?path=/dev/time|_select:uptimetxt <response request_id="0" method="txp_get" time_stamp="2012-08-17 11:14:20" version="1.0">...
Page 73: Tools
Ethernet port, either data or management, or to the port conﬁgured as default management interface if the speciﬁed IP address does not match either of the two sub-nets. Note that ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 74 The shortest round trip time registered for the ping requests in this session. Max roundtrip The longest round trip time measured for the ping requests in this session. Remaining The number of remaining ping requests in this session. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 75: Clock Regulator
External Reference signal is enabled, and the internal clock has obtained lock to the reference. Current phase oﬀset Phase oﬀset between the internal clock and 1 PPS clock reference given as a multiple of 3.704 ns (one period of 270 MHz) ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 76: Alarms
Files exported from the device using this option contain a complete device conﬁguration and can be restored to the device at a later time. Or it may be installed on another device using the Load Conﬁguration option. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 77 It also makes man- agement easier in that the Web UI will continue to communicate with the device after a new conﬁguration has been loaded. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 78: Boot Log
Indicates if the uploaded conﬁg has a valid XML syntax or not. Valid syntax is indicated by a green indicator and a invalid syntax is indicated by a red indicator. A silver indicator in this column signiﬁes that the slot is empty and available. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 79 Delete the entry selected in the snapshot list. Refresh Reload the list. At the bottom of the page is the Results of last conﬁg action ﬁeld, which will show the result of the last action performed. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 80: Emergency Switch
In this way the operational mode of a comprehensive system may be changed at the press of a single button. Contact T-VIPS for further information on the emergency switch unit.
Page 81 The ID of the conﬁguration that shall be applied when the emergency switch is inactive. Stored Conﬁgurations This ID must be the ID of a valid conﬁguration from the list. Advanced settings ﬁeld has the following parameters Digital input For future use. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 82: Maintenance
IP conﬁguration. Generate System Report Generates an status report of the unit in XML format. Please attach this system report when contacting T-VIPS Customer Support. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 83 A list of features relevant to the device and their state (e.g. true, false or the number of ports supported). TS Conﬁguration Mode ﬁeld allows the user to select DVB or ATSC operational mode. Figure 8.36 TS Conﬁguration Mode ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 84: Software Upgrade
Prompts the administrator with a standard system dialogue to specify the new software image ﬁle to install. Upload Browse Upload Once an image ﬁle is speciﬁed by using the button, the button is used to CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 85: Feature Upgrade
Maintenance General tab in Section 8.4.8.1. Note: The entire content of the licence key text ﬁle must be copied into the text box, not just a portion of the ﬁle. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 86: Users
("No auto login") to another setting bypasses the initial login screen (Figure 8.2) encountered by default. Users Each user privilege level has an account name and password. The account name is ﬁxed CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 87: Gui Preferences
GUI scale level The current scale level for the GUI. This is ignored if GUI scaling is not enabled. A value of 0 means normal size. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 88: Inputs
Sync Displays “yes” if the unit has synchronised to this transport stream input. Total Bitrate The total bitrate in Mbit/s of the transport stream currently received on the input. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 89: Ip Inputs
The name of the IP input, consisting of the factory deﬁned label with the physical port number and the user deﬁned name. If no user deﬁned label is deﬁned for multicast streams, the multicast address is displayed. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 90 ASI inputs described in the previous section. Add IP Remove IP buttons at the bottom of the page lets the user add or remove IP inputs. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 91: Switch Inputs
The port numbers for switch inputs start at 64. Switch Status Status text from the switch state machine. In the normal state, this shows active state and the time the switch has been in this state. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 92: Input
Services This page gives detailed information about the services that are currently running and the components of those services. PIDs This page gives detailed information about the currently present PIDs. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 93: Main
. It is only used in the WEB GUI to identify the port. TS id The transport id of the transport stream currently received on the input. The value of this depends on PAT being present and decoded on the input. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 94 The name of the service as conveyed by the SDT Actual table. If there is no SDT Actual table or if the SDT table is not analysed, the name is displayed as Service SID CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 95: Alarms
Note that the alarms are organised hierarchically and that only the branches in focus need to be expanded. Figure 8.48 Input alarm conﬁguration The following conﬁguration options are available: ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 96 Alarm details section (ﬁgure 8.50). The alarm tree has two types of nodes: Folder Corresponds to a group of alarms. The colour of the folder shows the highest severity of CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 97 PID above which an alarm is raised. The default value is shown to the right. Min rate (alarm dependent label) This ﬁeld is shown for PID rate alarms. The number entered in the box determines the ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 98 Service/PID with active alarms table shows all currently active alarms on sub-items for the selected alarm. The following columns are found in the table. Service/PID The id of the sub-item. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 99: Ip Configuration
8.5.2.3 IP This tab is only visible if an IP input is selected. 8.5.2.3.1 IP Conﬁguration IP Conﬁguration Ping Regulator The tab contains three sub pages: Figure 8.52 IP Conﬁguration ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 100 Latency This parameter reﬂects the network jitter the unit can handle at the moment. Min/Max latency This shows the minimum and maximum latency measured since the statistics was last reset. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 101: Fec
The number of IP frames lost. I.e. FEC processing has not been able to recover these frames. Corrected IP frames The number of IP frames that were successfully regenerated by the FEC processing. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 102 ﬁelds show the status of the IP stream carrying the column and row FEC IP datagrams, respectively: UDP port The UDP ports receiving the column/row FEC data. Bitrate The bitrates of the Column and row FEC data. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 103: Ping
The time taken from last sending the Ping message until the response is received. Min roundtrip The minimum time taken from sending a Ping message until the response is received. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 104: Regulator
CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 105 Indicates the maximum clock correction (in ppm) that may be applied. This parameter is aﬀected by the “Expected PCR accuracy” parameter and is typically conﬁgured slightly wider to allow headroom for buﬀer regulation. Channel uptime The elapsed time since last re-synchronisation occurred. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 106: Services
If PIDs are shared between services, the displayed sum of the bitrates of all services may exceed the total bitrate of the transport stream. Min rate The minimum bit rate measured for this service since the last reset. Resets when the PID rates are reset. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 107 VCT table if it is present and analysed: Channel name Major channel number Minor channel number Service type Modulation mode Channel TSID Access controlled Hidden Hide guide ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 108 Clicking on a component in the left hand list of services and components opens a Components view on the right hand side. On the top of this view is a toolbar with two buttons to switch Table Rate between views. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 109: Pids
The PID table contains the following columns: Info This column shows icons describing some aspects of the PID. The signiﬁcance of the icons is given below. 3 4 5 Figure 8.59 Status icons in PID details ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 110 Reset packet counts This button resets the packet counters for all packet streams. PID rate view is shown in ﬁgure 8.60. To the left is the bar chart showing the PIDs and CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 111: Tables
Which tables being currently analysed by the device is also displayed. “Tables” tab The button switches to a detailed view of the tables present on the input and analysed by the device. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 112: Tables
Show ID’s as Conﬁgure to view id’s and keys in hexadecimal or decimal notation. The right hand side table of the sub page has the following columns: CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 113: Settings
To be able to see the programs and do service ﬁltering on an input port you must analyse at least PAT and PMT. To use the Playout Unchanged mode to play out a table on the output the table must be analysed on the selected input. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 114 To see the service name for the services you have to conﬁgure analysis of SDTa (SDT actual) for DVB services, or TVCT/CVCT for ATSC services . In general alarms will not be generated for tables that are not conﬁgured for analysis. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 115: Sources
Source PID The input PID to use in the section ﬁlter for this table ID. Click the grid cell to edit it. Edited ﬁelds are shown in yellow until applied. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 116: Switch
A physical port can only be used in one switch group. When a physical port is used in a switch group, it cannot be used directly as a physical port when conﬁguring services and PIDs. Switch conﬁguration CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 117 List of inputs pertaining to the switch group. Columns are: Input Name of the input port Status Input alarm status Valid Status of input saying if the input will be considered as valid when performing an ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 118: Alarms
The table has the following columns: Enable This shows whether the output is enabled or not. The output enabled or disabled for an output by clicking this check box and hitting apply. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 119: T2-Mi Output
This page displays the status of all output related alarms, and lets the user override the severity of these alarms. Outgoing This page shows a detailed view of the PIDs being currently transmitted. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 120: Main
This lets the user to manually enter a bitrate or let it be set automatically by the unit. If automatic mode is selected the CP560 will always select the minimum bitrate needed for the T2-MI stream, thus reducing the number of stuﬃng packets (PID: 8191) to zero.
Page 121: Main Configuration
204 bytes. The unit will send Reed-Solomon FEC packets (16 Bytes). 8.6.4 DVB-T2 This tab contains the DVB-T2 settings for the CP560. 8.6.4.1 Main conﬁguration This page displays information about the DVB-T2 signal and includes the main settings for the T2-Framing.
Page 122 T2 version This ﬁeld selects the version of the DVB-T2 speciﬁcation. Changing from version 1.1.1 to 1.2.1 or 1.3.1 makes the CP560 signal High Eﬃciency and Normal Mode in the L1-signalling. It also gives a diﬀerent selection of PAPR techniques.
Page 123: Sfn Configuration
Relative: Seconds ﬁeld set to 0’s, while subsecond ﬁeld locked to 1PPS. For SFN networks. Absolute: Seconds ﬁeld locked to SNTP, subsecond ﬁeld locked to 1PPS. For SFN networks. Allows delays from T2-Gateway to modulators of more than 1 second. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 124 This ﬁeld indicates the time (in ms) the DVB-T2 frames are sent ahead of the transmission time. Relevant for Relative and Absolute Timestamps. This value should take into account all delays (buﬀers) from the CP560 to the transmission time in the modulator. See appendix for details regarding the Estimated Transmission Time.
Page 125 Relevant for Relative and Absolute Timestamps. This value should take into account all delays (buﬀers) from the CP560 to the transmission time in the modulator. If using Absolute timestamp or using the CP560 in a Seamless SFN system leap seconds must be handled. If not, leap seconds may be ignored.
Page 126: Plp Configuration
Override Capacity validation This option lets you have less cell occupancy than 50% in a T2-Frame. This is not a valid signal, and is only intended for PLP Replacement systems. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 127 FEC blocks. This given bitrate is shown below. The CP560 might not be able to allocate the desired bitrate if the sum of the bitrates for all PLPs exceed the total capacity Apply of the T2-Frame.
Page 128 Possible values are 1/2, 3/5, 2/3, 3/4, 4/5, 5/6 for T2-Base and 1/3, 2/5, 1/2, 3/5, 2/3, 3/4 for T2-Lite. Values closer to 1 gives less protection but more data bits throughput. Time interleaving type This ﬁeld indicates the type of time-interleaving. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 129 PLPs are not transmitted in any way. The PLP lists has a few columns showing some important information. The PLP Id for each PLP. Source The Input Port for each PLP. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 130 The actual bitrate for given the PLP based on the requested bitrate. The PLP bitrate will always be greater than or equal to the requested bitrate, because the CP560 will allocate the minimum number of whole FEC blocks to accomodate the requested bitrate. If only using one PLP, the PLP bitrate will be maximized to use the whole capacity and will thus ignore the requested bitrate parameter.
Page 131: Source Bit Rate Control Settings
This ﬁeld indicates the PID of the outgoing transport stream that carries the T2-MI packets. Transmit PAT This ﬁeld deﬁnes whether the Program Allocation Table (PAT) should be sent or not. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 132 40 ms. Reduce eﬃciency Enabling this feature causes the CP560 to not have more than one T2-MI packet in one TS packet when creating the outer TS layer. This results in more stuﬃng thus giving a higher TS output bitrate. This may improve T2-MI seamless switching.
Page 133: Individual Addressing Configuration
Modulator ID Unique ID of the modulator to be individually addressed. Note: Modulator ID “0” is reserved as broadcast, i.e. all modulator will apply the conﬁguration for Modulator ID “0”. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 134: Future Extension Frames Configuration
Individual Addressing with TX-SIG 1 and TX-SIG 2. See section 8.6.4.5. Enable Enable FEF part insertion in the T2 stream. Interval Number of T2-Frames between each FEF part. This interval must be such that a whole CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 135 Main settings, section 8.6.4.1. Type The CP560 currently only supports FEF Composite part with FEF sub-part of type TX-SIG. Transmitter Id Which transmitter Id the FEF part should be valid for. 0 means broadcast, i.e. all trans- mitters.
Page 136: Ts-Out - Ip Destination
Select UDP or RTP transmission mode. See Section 5.5.2 for more information on this. UDP destination port Enter the UDP destination port to use when transmitting data over IP. The UDP destination CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 137 Priority is normally conﬁgured per VLAN interface. It is possible to override the VLAN priority ﬁeld for the output stream by checking this box and entering a new priority value. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 138: Fec
The bitrate of the row FEC contribution to the IP data. 8.6.6.2 FEC This page allows conﬁguring and applying forward error correction data to the output IP trans- port stream. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 139 Column FEC Ethernet rate The bitrate of the column FEC contribution to the IP data. Row FEC Ethernet rate The bitrate of the row FEC contribution to the IP data. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 140: Ping
The time taken from last sending the Ping message until the response is received. Min roundtrip The minimum time taken from sending a Ping message until the response is received. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 141: Alarms
The Alarms page lets the user conﬁgure and view the status of all alarms belonging to the selected output. The page functions exactly like the input alarms page, except it is not possible to copy settings from a diﬀerent output. (See section 8.5.2.2). ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 142 CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 143: Snmp
For example, deﬁnition of alarm status numbers are deﬁned in this MIB. VIGW-BASE-MIB Deﬁnes the top level MIB structure including the enterprise speciﬁc root node for device control (1.3.6.1.4.1.22909). ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 144 Control of output bitrate and other ASI parameters (spread/burst mode). Control of MIP insertion (if enabled in the product) OFDM modulation parameters Enable/disable of MIP insertion Control of PSI/SI/PSIP table playout CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 145: Snmp Related Configuration Settings
The community strings are used to provide simple password protection for SNMP read and write requests. The strings can be conﬁgured from the GUI. It is also possible to conﬁgure the community strings to be used for trap messages. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 146: Trap Destination Table
Detailed The device forwards alarms as traps. If there are sub-entries that are using the subid3 value, each sub.entry will be transmitted in separate trap messages. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 147: Alarm/Status Related Snmp Traps
All alarm event traps (i.e. all traps deﬁned in Table 9.1 except unitAlarmStatusChanged contain a severity ﬁeld which is encoded according to the deﬁnition below: Severity Description Cleared Indeterminate Warning Minor Major Critical ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 148: Alarm Event Fields
This variable contains the new, top level alarm status of the unit after the condition unitAlarmStatus leading to this trap messsage. It may be used to quickly update the top level status for the device after receiving the trap message. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 149: Matching Of On/Off Traps
The ﬁelds in these traps are fetched from the . The meaning of unitAlarmTrapHistoryTable these ﬁelds correspond to the ﬁelds in the for SNMPv2 traps and are unitEventHistoryTable not described in more detail here. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 150 CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 151: Examples Of Use
72MBit/s. Refer to section 8.6.3. 10.3 Single PLP at 40MBit/s The most basic way of using the CP560 is to encapsulate one DVB-TS stream into one PLP. By using the VV500 (V&V 500, T2-MI test case) proﬁle, the TS transmission bitrate will be 40.214 MBit/s.
Page 152: Sfn Operation
Null packet deletion: Disabled The input TS stream will now be encapsulated and sent over the T2-MI interface to a modulator which will transmit this on air. 10.4 SFN operation CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 153: Seamless Sfn Operation
Current suggestion, 500 ms. (150 ms modulator processing time + 250 ms network delay + 100 ms extra buﬀering) Now connect two or more modulators to the same CP560 ASI or IP output, and have them transmit in a SFN.
Page 154: Redundant System With Tns541 Ts Seamless Switch
10.6 Redundant system with TNS541 TS Seamless Switch Having connected 2 CP560’s to a TNS541, the TNS541 will select the best input. The best input is determined from the alarm status of each input. For example if the TNS541 loses input sync it will switch to the other input.
Page 155: Signal Empty Plps
10.6.1 Signal empty PLPs If however a CP560 loses input sync, the TNS541 will not detect this in any way. The reason for this is that the rate of T2-MI layer is independent of the input bitrate. If a PLP is empty, i.e.
Page 156 CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 157: Preventive Maintenance And Fault-Finding
11 Preventive Maintenance and Fault- ﬁnding This chapter provides the schedules and instructions, where applicable, for routine inspection, cleaning and maintenance of the CP560, to be carried out by the operator of the unit. 11.1 Preventive maintenance 11.1.1 Routine inspection This equipment must never be used unless all the cooling fans are working.
Page 158: Warranty
Preventive Maintenance and Fault-ﬁnding 11.1.4 Warranty The CP560 is covered by standard T-VIPS warranty service for a period of 24 months following the date of delivery. The warranty covers the following: All defects in material and workmanship (hardware only) under normal use and service.
Page 159: Psu Led Not Lit / Power Supply Problem
Connect a piece of equipment known to work to the power source outlet. Does it work? The problem lies within the CP560 or the power cable. Proceed to next step. The problem lies with the power source. Check building circuit breakers, fuse boxes and the source outlet.
Page 160: Fan(S) Not Working / Unit Overheating
11.4 Returning the unit Before shipping the CP560 to T-VIPS, contact your local T-VIPS reseller or T-VIPS directly for additional advice. 1. Write the following information on a tag and attach it to the CP560.
Page 161: A Glossary
Ethernet frames between nodes. The speeds now supported are 10 Mbit/s, 100 Mbit/s and 1000 Mbit/s. 10Gigabit/s Ethernet networks are now emerging. Forward Error Correction. A mechanism to protect data transmission by adding redundant ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 162 IP packets to ﬂow along a predeﬁned path in a network, improving the reliability and robustness of the transmission. MPTS Multi Program Transport Stream. MPEG2 transport stream that carry multiple TV/Radio services. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 163 Routing Information Protocol v2. A protocol used between network routers to exchange routing tables and information. RSVP ReSerVation Protocol. A Quality-of-service oriented protocol used by network elements to reserve capacity in an IP network before a transmission session takes place. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 164 MPEG-2 Transport Stream (TS) packets and sent over a single TS logical channel. SNMP Simple Network Management Protocol. A fundamental and simple protocol for manage- ment of network elements. Commonly used by Network Management Systems and other applications. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 165 Markup Language. A common self-describing text-based data format. Used for many purposes: Meta-data, conﬁguration ﬁles, documents, etc. The readability of the format has made it very popular and is now the basis of many types of WEB services. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 166 CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 167: Technical Specification
B.3.1 AC Mains supply Table B.2 AC Power Supply Speciﬁcation Rated voltage 100-240 VAC Voltage tolerance limits 85-264 VAC Rated frequency 50/60 Hz Rated current 0.7 A Power consumption 50 W ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 168: Dc Supply
Packet length 188 or 204 bytes Max cable length (Belden 8281 type) 300 m typical B.4.2 Ethernet management port Table B.6 Ethernet Management Port Speciﬁcation Type 10/100Base-T Connector type RJ45 CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 169: Ethernet Data Port
Table B.10 Alarm Relay and Reset Port Speciﬁcation Connector type 9-pin DSUB Male Relay rating 0.1 A max, 50 VDC max Relay minimum load 10 A at 10 mVDC Reset activation time 8 seconds ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 170: External Reference
The equipment has been designed to meet the following EMC requirements: EN 55022 and AS/NZS 3548 (European, Australian and New Zealand) Emission Standards Limits and methods of measurement of radio frequency interference characteristics of information technology equipment - Class A. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 171: Ce Marking
Such kind of buﬀer is required to achieve a protective electrical barrier between the “public telecommunication system” and the unit. This electrical barrier is required to achieve protection against lightening or faults in nearby electrical installations. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 172 CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 173: Forward Error Correction In Ip Networks
1500 bytes, or about 5% of a video frame for a video stream running at 5 Mbit/s, a lost IP packet will result in visible impairments. Figure C.1 Impairments of an IP packet stream ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 174: Standardisation
XOR calculation is not done on adjacent packets; rather packets at a ﬁxed distance are used. This can be visualised by arranging the packets in a two dimensional array and inserting them in rows in the same order as they are transmitted. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 175 FEC calculations it is now possible to handle more complex packet loss distribution patterns and correct up to L+D lost packets. Figure C.3 Two-dimensional FEC calcula- tion matrix ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 176 Packets marked 8 and 9 are protected by the same column FEC packet and are recovered by the row FEC packets after recovery of packets 1 through 7. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 177: Transmission Aspects
FEC to an IP video stream in a heavily loaded network. High instantaneous packet rates may cause temporary overload resulting in packet loss, defeating the object of introducing FEC in the ﬁrst place. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 178: Quality Of Service And Packet Loss In Ip Networks
1 x 10 , but occasionally a link may become degraded showing PLR ﬁgures like 3 x 10 . The performance will vary over the day with the lowest performance CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 179: Error Improvement
For ease of reference the diagram indicates packet loss rates resulting in one visible impairment (error hit) per day at transport stream bit rates of 40Mb/s, 270Mb/s and 1,5Gb/s, respectively. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 180: Latency And Overhead
FEC calculation must be collected before a missing packet can be recovered. Figure C.11 shows how diﬀerent matrix sizes result in diﬀerent latencies and required buﬀer sizes, using column-only FEC processing. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 181 FEC calculations to recover more missing packets. The equipment manufacturer is at liberty to determine the algorithm used in error recovery as long as the requirements and limitations of the speciﬁcation are respected. ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 182 CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 183: Quality Of Service, Setting Packet Priority
(TOS). Both these methods use the same bits in the IP header and both of them are in common use. IP precedence values range from 0 to 7. Diﬀ-serve code point (DSCP) values range from 0 to Figure D.1 Diﬀerentiated services (Diﬀ-serve) and precedence bits (TOS) ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 184: Cp560 Configuration
Diﬀ-serve or precedence bits regarding packet classiﬁcation in the network. D.3.1 CP560 conﬁguration IP TX The COS priority is entered in the VLAN conﬁguration page in the CP560 conﬁguration VLAN Priority menu, in the ﬁeld named .
Page 185: Validation Of Dvb-T2 Parameters
Table E.2 MISO: Valid Pilot Patterns for combinations of FFT size and Guard Interval 1/32 1/16 1/8 1/4 1/128 19/128 19/256 PP4,PP8 PP2,PP8 PP4,PP6,PP8 PP2,PP8 16k PP4,PP5,PP8 PP3,PP8 PP1,PP8 PP4,PP5,PP8 PP1,PP8 PP3,PP8 8k PP4,PP5,PP8 PP3,PP8 PP4,PP5,PP8 PP1,PP8 PP3,PP8 PP4,PP5 PP4,PP5 ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 186: T2-Lite
The availability of FEC Code Rates for each PLP depends of the selection of the T2-Base or T2-Lite proﬁle as follows. An marks a valid mode. Table E.5 Valid FEC Code Rates for each PLP 1/3 2/5 1/2 3/5 2/3 3/4 4/5 5/6 T2-Base T2-Lite CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 187: Estimated Transmission Time
The transmission delay is deﬁned from the CP560 output until the signal is emitted on air. The ETT therefore needs to be large enough to account for the network delay between the CP560 and the T2-modulator and the processing delay required in the modulator.
Page 188: How To Set Ett
F.3 How to set ETT 1. Estimate the total network delay from the CP560 to each modulator in an SFN region. Remember to account for possible jitter in your network, especially if using IP trans- mission.
Page 189: Alarms
Finally, the red alarm LED will be lit when an unmasked critical alarm condition arises. At the same time the alarm relay will be set to alarm state. Table G.3 shows the possible alarms that can be signalled by the CP560. For each alarm type, essential information is presented. The diﬀerent ﬁelds are described in Table G.2.
Page 190 Subid2 value. Subid3 This ﬁeld is present if the Subid3 value of the alarm type is used. The text in the table describes the usage of the Subid3 value. CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 191 Ethernet input overﬂow Critical Description: The total bitrate of the IP input streams is too high. Type: Ethernet port (Type ID = 17) Clear event: Yes Subid2: Ethernet port ID ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 192 Clear event: No Power failed Warning Description: One or more power supplies have failed, or are out of regulation. Type: System (Type ID = 13) Clear event: Yes Subid3: Power supply ID CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 193 Description: The relay controller is unable to switch because the spare input is not suﬃciently good. Type: Relay Switch (Type ID = 19) Clear event: Yes Subid2: Relay switch controller ID ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 194 System (Type ID = 13) Clear event: No Timesync error Major Description: Not able to synchronize internal time to external time references. Type: System (Type ID = 13) Clear event: Yes CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 195 Clear event: Yes Subid2: Port identiﬁer 1132 PAT invalid table ID Warning Description: See ETSI Technical Report 290. Type: Port (Type ID = 9) Clear event: Yes Subid2: Port identiﬁer ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 196 Clear event: No Subid2: Port identiﬁer Subid3: 1508 TS packets dropped Major Description: Incoming TS Packets are dropped. Type: Port (Type ID = 9) Clear event: Yes Subid2: Port identiﬁer Subid3: CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 197 Subid2: Port identiﬁer Subid3: 1812 TS rate too high Filtered Description: TS bitrate is higher than set limit. Type: Port (Type ID = 9) Clear event: Yes Subid2: Port identiﬁer ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 198 Type: Port (Type ID = 9) Clear event: Yes Subid2: Port identiﬁer Description: 2100 PSIP repetition error Warning Type: Port (Type ID = 9) Clear event: Yes Subid2: Port identiﬁer CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...
Page 199: H References
(T2-TX-SIG) for use with the DVB-T2 second generation digital terrestrial television broadcasting system [11] SMPTE 2022-2-2007: Unidirectional Transport of Constant Bit-Rate MPEG-2 Transport Streams on IP Networks ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Page 200 Pro-MPEG Forum: Pro-MPEG Code of Practice #4 release 1, July 2004: Transmission of High Bit Rate Studio Streams over IP Networks [16] J. Rosenberg, H. Schulzrinne, IETF RFC2733, December 1999: An RTP Payload Format for Generic Forward Error Correction CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686) ID: um_t2gateway...