Manuel d'utilisation / d'entretien du produit DVB-ASI to IP du fabricant Network Technologies
Aller à la page of 93
network-electronics.com DVB-ASI to IP Gateway Rev . 2.10.0 Flashlink User Manual ASI-IP-GTW.
ASI-IP-GTW User's Manual Page 2 This page is intentionally left blank.
ASI-IP-GTW User's Manual Page 3 Important notice: Network Electronics ASA reserve the right to make corrections, modifications, enhancements, improvements and other changes to its products or services at any time and to discontinue any product or service without notice.
ASI-IP-GTW User's Manual Page 4.
ASI-IP-GTW User's Manual Page 5 Table of Contents 1 Introduction ................................................................................ 8 1.1 Purpose of th is Manual ......................................................... 8 1.1.1 Who Should Use this Manual.
ASI-IP-GTW User's Manual Page 6 3.5.2 Time settings .......................................................................... 33 3.5.3 Alarms .................................................................................... 34 3.5.4 SNMP ....
ASI-IP-GTW User's Manual Page 7 6.4.2 Preliminary Checks ................................................................ 71 6.4.3 PSU LED Unlit / Power Supply Problem................................. 72 6.4.4 Fan(s) Not Working / Overheating ...
ASI-IP-GTW User's Manual Page 8 1 Introduction 1.1 Purpose of this Manual This manual describe s how to operat e the ASI to IP Gateway, hereafter referred to as the ASI-IP-GTW. It also describes how to install and maintain the unit. A detailed technical descrip tion of the functionality of the unit is given as part of this docu ment.
ASI-IP-GTW User's Manual Page 9 Caution: Cautions give information, if strictly followed, will prevent damage to equipm ent or other good s. Note: Notes provides supplementary information. They are highlighted for emphasis, as in this example, and are pl aced immediately after the relevant text.
ASI-IP-GTW User's Manual Page 10 1.2.2 Software versions This manual covers the functionality of the so ftware version 1.4.0 or later of the ASI-IP-GTW. This manual co ntinues to be relevant to subsequent software versions where th e functionality of the equipment has not changed.
ASI-IP-GTW User's Manual Page 11 o User-friendly configuration and control o WEB/XML based remote contr ol o Easy access to unit from any WEB b rowser o Easy integration to Network Management Sys.
ASI-IP-GTW User's Manual Page 12 1.5 Guided Tour 1.5.1 The User Interface All connectors are provided at th e rear panel. Configuration and monitoring of the unit is perfo rmed via a FLASH-based WEB interface using a standard WEB browser such a s Internet Explorer.
ASI-IP-GTW User's Manual Page 13 Note: Some units are delivered to us e 48 VDC power. These units have a 3-pin power D-SUB connector instead of the mains connect or. 7. LEDs . The ASI-IP-GTW provides on the rear four LEDs related to the operation of the equipment.
ASI-IP-GTW User's Manual Page 14 1.5.6 Software Options The following table describes the features available as software option. Please refer to Appendix D: Upgrade o f Features for more informatio n Table 2.
ASI-IP-GTW User's Manual Page 15 2 Installing the Equipment 2.1 Introduction 2.1.1 Read this first! The ASI-IP-GTW must be hand led carefully and thoughtfully to p revent safety hazards and damage. Ensure that the perso nnel designated to install the unit have the approp riate skills and knowledge.
ASI-IP-GTW User's Manual Page 16 o Where appropriate ensure that this product has an adequate level of lightning protection. Alternati vely, during a lightning storm or whenever it is left unattended and unused for long periods of time, unplug it from the supp ly outlet and disconnect the ou tput equipment.
ASI-IP-GTW User's Manual Page 17 GTW are no not blocked and allow at least 50 mm free air-space at each side of the unit. The ASI-IP-GTW is designed to be stacked in 19"racks without ventilation pa nels between. In systems with stacked units, it may be required to use forced-air cooling to reduce the operating ambient temperature.
ASI-IP-GTW User's Manual Page 18 have ordered the unit with less than 4 ASI ports, the enabled ports starts at number 1 up to the number of ports orde red. In IP bi-directional mode, half the DVB-ASI connectors are used as inputs, and the ot her half as DVB-ASI outputs.
ASI-IP-GTW User's Manual Page 19 The unit is supplied with a two meter detachable power supp ly cable equipped with the moulded plu g suitable for Europe, UK or US. The wires in the mains cable are coloured in accordance with the wire colour code shown in Table 3.
ASI-IP-GTW User's Manual Page 20 1.1.1.17 Connecting t he Video Gateway to th e AC Power Supply To connect the unit to the lo cal AC power supply: 1. Ensure that the local ac po wer supply is switch OFF. 2. Connect the ac power lead to the Video Gateway mains input connector and then the local mains supply.
ASI-IP-GTW User's Manual Page 21 2.4 Signal Connectio ns 2.4.1 Introduction All signal connectors are located at the rear of the ASI-I P-GTW. For detailed specifications of the different interfaces, please refer to Chapter 0. Please ensure that specified cables are used in or der to ensure signal integrity and compliance with EMC requirements.
ASI-IP-GTW User's Manual Page 22 1.1.1.18 DVB ASI input Inputs connected to t he DVB ASI ports should be on DVB compliant transport streams in asynchronous serial format. Each DVB ASI connector has two LEDs ass ociated with it; ASI Rx and Ac tiv e .
ASI-IP-GTW User's Manual Page 23 Table 7. Optional SFP Ethernet data port Note: Please note that the optional SFP slot always pro vide Gigabit Ethernet. Other bitrates are not supported by the SFP slo t. Note: Please note that data will not be available simultaneously on the electrical Ethernet port and the SFP slot.
ASI-IP-GTW User's Manual Page 24 Table 10. ASI port LEDs Each Ethernet port (data and mana gement) has two LEDs associated with it. Table 11. Ethernet port LEDs 2.
ASI-IP-GTW User's Manual Page 25 3 Operating the Equip m ent 3.1 Introduction The ASI-IP-GTW is con figured and controll ed locally and remotely through a flash-based WEB interface. The only application requir ed on the computer to use this interface is a WEB browser (Internet Explorer, Mozilla or Opera) and FLASH player 7.
ASI-IP-GTW User's Manual Page 26 This will result in the IP address 10. 40.80. 100. The subnet mask is set to 255.255.255.0 and the default gateway to 10 .40.80.1. 3.3 Looking at the WEB interface Figure 7 shows the Status page of the WEB-based u ser interface to the equipment.
ASI-IP-GTW User's Manual Page 27 To select a page, just click on the tab of the p age you want to view. Main tab (page) Sub-tab Description Current alarms The current status of the unit is shown. The page shows pending alarms together with informat ion about when the alarm appeared an d the severity level of the alarm.
ASI-IP-GTW User's Manual Page 28 In order to activate a change in a p arameter, you need to click the Apply button. The refresh button, will read back all parameters on the page from the unit. 3.4 Status Figure 7 shows the overall status of the unit.
ASI-IP-GTW User's Manual Page 29 3.5 Device Info Figure 8 shows the Device In fo page. Figure 8. The device info page The upper part of the Device Info page contains product information. This includes the following parameters: Name: The name of the unit configured by the user.
ASI-IP-GTW User's Manual Page 30 When the bi-directional feature is enable d, a third option ‘ASI <--> IP’ is available to operate half of the AS I connectors as inputs and the other half as outputs.
ASI-IP-GTW User's Manual Page 31 1.1.1.21 Advanced The advanced sub-tab o f the Data interface allows configuration of in- band management. Figure 9. The device info, net work an d adv anced sub-page Allow ping response: Tick this box to filter incoming ICMP messages.
ASI-IP-GTW User's Manual Page 32 Figure 10. The device info page, Net work and SFP sub-page This sub-page is only shown if the unit is equipped with an SFP slot.
ASI-IP-GTW User's Manual Page 33 3.5.2 Time settings Figure 11 shows the sub-page for ti me setting used for alarm repo rts. Figure 11. Time setting sub-page Current time: This shows the current time us ed by the unit. T he time is displayed in local time with an indicatio n of the local time zone relative to UTC.
ASI-IP-GTW User's Manual Page 34 Manual Update: Enter the wanted date and time and press this button to set the clock manually. Remark that if you are ru nning in SNTP mode and the device receives ans wer s from the time server, the time value will be overwritten.
ASI-IP-GTW User's Manual Page 35 Figure 13 SNMP tab Trap Destination Servers: A list containing the IP-addresses of all the current receivers of SNMP trap messages. Add Trap Server: Clicking this button adds the I P-address from the neighbouring IP input field to the list of trap servers.
ASI-IP-GTW User's Manual Page 36 3.5.5 Ping The ping page can be used to check for connectivity be tween devices. It is especially useful to ping the receiving data port from the IP transmitter to see if the receiver can be reached. Figure 14 shows the Ping page with its parameters.
ASI-IP-GTW User's Manual Page 37 pressing the start button the label switches to St op , and the button can be pressed again to cancel the pi ng sequence. OK responses: The number of successful a nswers received. Timeouts: The number of ping requests that were not answered .
ASI-IP-GTW User's Manual Page 38 3.5.6 Security Figure 11 shows the sub-page for user security (password protection). Figure 15. Time setting sub-page Enable Password Protection: Mark this to enable passwo rd protection. If password is not set, it will use the factory default password.
ASI-IP-GTW User's Manual Page 39 3.6 IP TX Figure 16 shows the IP TX page. T he purpose of this page is to provide an interface for configuring the different stre ams to be sent through the unit. Figure 16. IP TX page The left part of screen shows a thr ee containing all the DVB ASI input ports.
ASI-IP-GTW User's Manual Page 40 Keep 204 bytes: Tick this box to transparently transmit all 204 b ytes of the incoming ASI transport stream, if present. When only 188 byte packets are received or the box is un checked, only 188 bytes of each transport stream packet is transmitted.
ASI-IP-GTW User's Manual Page 41 Type of service (TOS): Enter Type of Service pa rameter as a byte value to be set in the Type-of-Service (T OS) field in the IP header as specified in RFC-791. This parameter is used for Class-of-Service p rioritization.
ASI-IP-GTW User's Manual Page 42 3.6.2 FEC Settings Figure 17. IP TX FEC page This sub-page will only appear if the unit is enabled with FEC. FEC Mode: Select "No FEC" to not calculate and send any FEC data. Select "Column only" to calculat e and send one-dimensional FEC data.
ASI-IP-GTW User's Manual Page 43 Resulting total rate: This is the resulting total IP bitrate including FEC overhead for this channel. The Status frame contains status parameters related to the FEC setting. Column UDP port: This parameter is the UDP port used for the co lumn FEC data.
ASI-IP-GTW User's Manual Page 44 3.6.3 Ethernet Settings Figure 18. The Ethernet page of an IP transmitter 3.6.3.1 VLAN settings By enabling VLAN tagging, IEEE802 .1Q VLAN tags will be added to the outgoing streams. In effect, the video data Ethernet port will act as an 802.
ASI-IP-GTW User's Manual Page 45 3.6.4 Ping Settings Figure 19. The Ping page of an IP transmitter To resolve network problems, avoiding flooding, were the receive r or specific network components on the way to the receiver time out on there MAC address lookup.
ASI-IP-GTW User's Manual Page 46 3.7 IP RX 3.7.1 Main Figure 20 shows the IP RX page. T he purpose of this page is to provide an interface for configuring the different streams to be received by the unit. Figure 20. IP RX page The left part of screen shows a three containing all the DVB ASI outputs port.
ASI-IP-GTW User's Manual Page 47 1.1.1.28 Output Status ASI total rate: This shows the bitrate of the MPEG-2 transpo rt stream on the output including NULL packets. ASI effective rate: This shows the effective bitrate of the MPEG-2 transport stream on the output i.
ASI-IP-GTW User's Manual Page 48 IGMP version: Shows the I GMP version currently selected in the ”Device Info” page under “Net work”, “Advan ced” Settings. Reset statistics: Press this button to reset the counters: RTP seq uence errors, Lost IP frames and Corrected IP frames.
ASI-IP-GTW User's Manual Page 49 Max frames delay: This field shows the maximum number of frames delay measured for the FEC streams. Latency required: This field is calculated from the ‘Max frames delay’ field and the current total bitrate to show the minimum d elay needed by the FEC engine to fully utilize the incoming FEC streams.
ASI-IP-GTW User's Manual Page 50 3.7.3 Ethernet Settings Figure 22. The Ethernet sub-page of an IP receiver 3.7.3.1 VLAN settings Enable VLAN tagging: Check this box to enable VLAN tagging. VLAN ID: Enter VLAN ID in this field. This value shall b e between 1 and 4094.
ASI-IP-GTW User's Manual Page 51 3.7.4 Ping Settings Figure 23. The Ping page of an IP receiver To resolve networ k problems, av oiding flooding, were the transmitter or specific network components on the way to the receiver time out on there MAC address lookup.
ASI-IP-GTW User's Manual Page 52 3.7.5 Advanced Tab Figure 24 Advanced Tab On the advanced tab it is possib le to control and inspect the status o f the buffer regulator for a port. Pref. Init. Rate Mode: This parameter is used to select the preferred algorithm to use to find an initial bitrate for a received data stream.
ASI-IP-GTW User's Manual Page 53 Max bitrate: : If VBR rate mode is chosen, this tells the unit what bitrate it shou ld attempt to transmit at. Pad with NULL packets: Checking this means that the unit, when in VBR rate mode, will pad the output stream with NULL packets up to the entered max bitrate.
ASI-IP-GTW User's Manual Page 54 3.8 Network Figure 25 shows the Network page fo r a unit configured to bi- directional operation of the Ethernet interface. The purpose of this page is to provide network related information. Figure 25. Network page for unit in IP TX mode 1.
ASI-IP-GTW User's Manual Page 55 Figure 26 shows the Network page fo r a unit configured to IP-RX mode . Figure 26. Network page for unit in IP RX mode We see that only received network streams is visibl e. The Data Network Interface Status is the same for an IP transmitter and an IP receiver.
ASI-IP-GTW User's Manual Page 56 3.9 Save/Load Figure 27 shows the Save and Load configuration pag e. This is where you save the current configuration or restores a configuration from file. Figure 27. Save/load configuration p age The configuration in effect while th e unit is operating is called the current configuration.
ASI-IP-GTW User's Manual Page 57 Figure 28. Save/Load page when saving configuration 3.9.2 Loading a Configuration In order to upload a new co nfiguration file to the unit, b rowse to find the file and select the file or enter th e file including path directly.
ASI-IP-GTW User's Manual Page 58 4 Options This chapter describes functionality and operating instructions for various addit ional product opti ons. 4.1 1PPS/10MHz interface modules In order to achieve exact bitrate contro l for use in SFN networks, the ASI-IP-GTW may be equipped with 1PPS/1 0MHz interface modules.
ASI-IP-GTW User's Manual Page 59 o 1PPS. 50 ohm TTL input for a 1 pulse-per -second sign al. For physical parameters of the 1PPS port, see appen dix B. 4.1.3 Operating the 1PPS/10MHz interface module A new top-level tab named “GPS” appears in the user interface of the ASI-IP-GTW units wit h the interface mounted.
ASI-IP-GTW User's Manual Page 60 Current freq. offset: This shows t he offset between the internal clock (in idle state) and the external clock reference. 4.1.4 LED descriptions (Separate 1PPS/10MHz module only) Each input connector has two LEDs associated with it; one yellow and one green LED.
ASI-IP-GTW User's Manual Page 61 4.2 RIPv2 functionality The ASI-IP-GTW is eq uipped with RIPv2 fu nctionality. The ASI-I P-GTW will then transmit RIPv2 messages regularly. The content of the RIPv2 messages is set as specified in this chapter. RIP2 messages are sent with one entry each.
ASI-IP-GTW User's Manual Page 62 Metric on clear: The metric number to be used in the RIP messages when there are no active alarms in the unit. Metric on critical: The metric number to be used in the RIP messa ges when there are at least one critical alarm present.
ASI-IP-GTW User's Manual Page 63 5 Equipment Description 5.1 Introduction This chapter provides an overview of transmissi on of MPEG-2 data over IP networks and a high-level functional des cription of the ASI-IP-GTW. 5.2 Functional Description 5.
ASI-IP-GTW User's Manual Page 64 5.2.3 IP Receive Mode In IP receive mode, the ASI-IP-GTW receive s IP packets from the data Ethernet interface. The ASI-IP-GTW will receive streams from different sources.
ASI-IP-GTW User's Manual Page 65 The WEB interface gives the most detail alarm information as all active alarms and warning are listed with time when the alarm condition occurred. The unit sends an SNMP trap message when an alarm conditi on rises.
ASI-IP-GTW User's Manual Page 66 Table 12. Alarms Alarm id Alarm Severity level Description 100 No sync Critical No vali d ASI input stream detected. 101 ASI bitrate too high Critical T he ASI input bitrate has exceeded the configured maximum value.
ASI-IP-GTW User's Manual Page 67 5.3 Overview of Video over IP 5.3.1 Protocol mapping One of the core functions in the ASI-IP-GTW is the IP encapsulat ion of the MPEG-2 transport streams. The task is basically to encapsul ate video packets into IP frames, using the right headers.
ASI-IP-GTW User's Manual Page 68 1.1.1.34 UDP Mode To allow interope rability with legacy equipment, the A SI-IP-GTW can stream video over IP without usin g the RTP protoc ol encapsulat ion.
ASI-IP-GTW User's Manual Page 69 1 10 9 8 7 6 5 4 3 2 11 20 19 18 17 16 15 14 13 12 21 30 29 28 27 26 25 24 23 22 31 40 39 38 37 36 35 34 33 32 41 50 49 48 47 46 45 44 43 42 51 60 59 58 57 56 55 .
ASI-IP-GTW User's Manual Page 70 6 Preventive Maintenance and Fault-finding 6.1 Introduction This chapter provides the schedules and in structions, where applicable, for routine inspection, cleaning and maintenance of the ASI -IP-GTW to be carried out b y the operator of the unit.
ASI-IP-GTW User's Manual Page 71 The warranty covers the following: o All material defects in the equipment for a p eriod of 12 months o All parts and labour charges o Return of the repaired item to th e customer, postage paid.
ASI-IP-GTW User's Manual Page 72 6.4.3 PSU LED Unlit / Power Supply Problem If the ASI-IP-GT W PSU LED is unlit, fault-finding the problem is detailed in the following tabl e. Table 13. Power fault-finding The PSU does not have any user changeable fuses.
ASI-IP-GTW User's Manual Page 73 6.4.4 Fan(s) Not Working / O verheating This equipment has forced air cooling and must not be operated unless all cooling fans are working. In th e event of overheating problems, refer to table. Note: Failure to ensure a free air flow arou nd the unit may cause overheating.
ASI-IP-GTW User's Manual Page 74 Table 14. Alarm condition d e scription. The description of the severity levels of the different alarms are given in Section 5.2. 6. Alarm Description Error source Bitrate regulation in progress T he regulati on algorithm is working with bitrate estimation.
ASI-IP-GTW User's Manual Page 75 6.5 Disposing of this Equipment 6.5.1 General Dispose this equipment safely at the end of its life time, Local codes and/or environmental restrictions ma y affect its disposal.
ASI-IP-GTW User's Manual Page 76 7 Appendix A: Glossary 1000Base-T: The term for the Electrical Gigabit Ethernet interface. This is the most common interface for Gigabit Ethernet. Most Gigabit- enabled PCs and equipment use this interface. ARP: Address Resolution Prot ocol.
ASI-IP-GTW User's Manual Page 77 format. Three versions exist. IGMPv2 is common today but IGMPv3 is the next step. Meta-data: Meta-data is descriptive data that is "tagged" to a movie or audio clip. Meta-data is essential for the broadcaster.
ASI-IP-GTW User's Manual Page 78 SDP: Session Description Protocol. A protocol to signal multicasts in a network. SDP is used as a mechanism to describe an ongoing multicast; for example the type of com pression used, IP addresses etc. SDTI: Serial Data Transport Interface.
ASI-IP-GTW User's Manual Page 79 Unicast: Point-to-point connection, i.e. the "o pposite" of multicast which is one to many (or many to many).
ASI-IP-GTW User's Manual Page 80 8 Appendix B: Technical Specification 8.1 DVB ASI port Table 15. DVB ASI Port Specification Item Specification Type ASI-C, Coaxial cable Connector type BNC 75 ohm socket Signal Compliant with ET SI TR 101891v 1.1.
ASI-IP-GTW User's Manual Page 81 8.2 Ethernet data port Table 16. Ethernet Data Port Specification Table 17. Electrical Ether net Data Port Specification Table 18. Optional SFP Ethernet Data Port Specific ation 8.3 Ethernet management po rt Table 19.
ASI-IP-GTW User's Manual Page 82 8.5 AC Mains Input Table 21. AC Power Supply Specific ation 8.6 DC Mains input Table 22. DC Power Supply Specific ation Item Specification Connector type 9-pin DSUB Male RS232 baudrate 115,2 kbaud RS232 framing 8 bit, no parity, 1 stop bit RS232 handshake None Relay rating 0.
ASI-IP-GTW User's Manual Page 83 8.7 Physical Details Table 23. Physical details Item Specification Height 43 mm, 1U Width 222 mm excluding fixing brack ets Overall width 485 mm including fi xing.
ASI-IP-GTW User's Manual Page 84 8.8 Environmental Conditions Table 24. Environmental spec ificatio n 8.9 Compliance 1 8.9.1 Safety The equipment has been designed an d tested to meet the requirements of the following: EN60950 European Safety of information technology equipment including business equipment.
ASI-IP-GTW User's Manual Page 85 Limits for the harmonic current emission. EN 50082-1 European Generic Immunity Standard Part 1: Domestic, commercial and light industry environment.
ASI-IP-GTW User's Manual Page 86 9 Appendix C: References o ISO13818- 1,2 and 3: MPEG- 2 Video and Au dio and Systems o EN 300 468: Digital Vide o Broadc asting (DVB); Specification for Service Information (SI ) in DVB systems o RFC 1889 - RTP: A Transport Protoc ol for Real-Time Appli cations.
ASI-IP-GTW User's Manual Page 87 10 Appendix D: Upgrade of Features The ASI-IP-GTW ASI to I P Video Gateway encompasses software licensing of functionality. This appe ndix describes how to upgrade the product features with the software feature system.
ASI-IP-GTW User's Manual Page 88 Figure 38 shows the feature upgrade page. Please paste in the license key in the "Activate feature key" field and press the button "Activate feature key" to load a new featu re key for the unit.
ASI-IP-GTW User's Manual Page 89 Figure 39. Feature upgrade di alogue Note: Please observe that you have to switch off and on the unit to active the new keys. In addition to the feature upgrade field , the Upgrade-page contains information about the unit an d currently enabled features.
ASI-IP-GTW User's Manual Page 90 11 Appendix E: Upgrading Software SW loading can be performed from the b ottom of the /upgrad e page, as shown in Figure 40. This option is available on SW ve rsions 1.3.0 and abov e. To load SW on older SW versions, please refer to do cumentation on how to load SW by FTP.
ASI-IP-GTW User's Manual Page 91 Figure 41 SW load progr ess When the file is transferred, a status message is printed in the main browser window.
ASI-IP-GTW User's Manual Page 92 12 Appendix F: Quality of service – Setting Packet priority Normal IP routing is by best effo rt. This does not wo rk well for broadcast television as the vide o and audio comp onents needs to be transport as a continuous flow o f packets without inference caused by other traffic over the internet.
ASI-IP-GTW User's Manual Page 93 1.1.1.37 ASI-IP-GTW Configurat io n The number entered into the Type of service (TOS) field on ASI-IP-GTW I P TX configuration menu defines all 8 bi ts. The value used should be in accordan ce with traffic engineering policy of network and should be in the range from 0 to 255.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Network Technologies DVB-ASI to IP c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Network Technologies DVB-ASI to IP - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Network Technologies DVB-ASI to IP, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Network Technologies DVB-ASI to IP va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Network Technologies DVB-ASI to IP, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Network Technologies DVB-ASI to IP.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Network Technologies DVB-ASI to IP. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Network Technologies DVB-ASI to IP ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
