BS EN 60728-5:2016 - Cable networks for television signals, sound signals and interactive services. Headend equipment

BS EN 60728-5:2016

Cable networks for television signals, sound signals and interactive services. Headend equipment

Status : Current, Under review   Published : April 2016

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This part of IEC 60728 specifies the characteristics of equipment used in the headends of terrestrial broadcast and satellite receiving systems (without satellite outdoor units and without those broadband amplifiers in the headend as described in IEC 60728‑3). The satellite outdoor units for fixed satellite systems (FSS) are described in ETSI ETS 300 158, and for broadcast satellite systems (BSS) in ETSI ETS 300 249. Test methods for both types (FSS and BSS) of satellite outdoor units are laid down in ETSI ETS 300 457.

This part of IEC 60728

  1. covers the frequency range 5 MHz to 3 000 MHz;

  2. identifies performance requirements for certain parameters;

  3. lays down data publication requirements for certain parameters;

  4. stipulates methods of measurements;

  5. introduces minimum requirements defining quality grades (Q-grades).

This part of IEC 60728 specifies the overall characteristics for upstream/downstream signals between external sources/sinks (for example, antennas, cable modem termination systems, etc.) and the system interface to the cable network. In the case of modular headend systems, single equipment items such as modulators, converters, etc. are also described. Cable modem termination systems, encrypters, decrypters, etc. are not described in this part of IEC 60728. If such equipment is used in headends, the relevant parameters for RF, video, audio and data interfaces should be met.

According to the definitions in 3.1, the headends are divided into the following three quality grades:

  • Grade 1: central headend;

  • Grade 2: hub headend or hubsite;

  • Grade 3: MATV headend/individual reception headend.

Figure 1 shows the block diagram of a headend consisting of typical processing units with the corresponding interfaces at the input and output.

[Image removed.]

For IP interfaces, specifications from the transmission standard ETSI TS 102 034 are taken into account where applicable. The content of the data streams can be digital video, audio or other digital data.

The necessary characteristics and parameters of equipment such as IP gateways or IP interfaces on equipment at the input of headends ( Figure 2) as well as at the output of headends ( Figure 3) are described in CLC/TR 50083‑5‑1.

Equipment at the input of headends can be either IP gateways which enable the connection to a Digital Video Broadcasting-Asynchronous Serial Interface (DVB-ASI) headend infrastructure according to EN 50083‑9 or, in the case of modular headend systems, can also be single equipment with IP interfaces such as DVB modulators, transcoders, multiplexers and FM radio processors as shown in Figure 2. Edge devices are also covered by CLC/TR 50083‑5‑1.

[Image removed.]

Equipment at the output of headends can be either IP gateways which enable the connection from DVB-ASI interfaces according to EN 50083‑9 to IP based networks or, in the case of modular headend systems, can also be single equipment with IP interfaces such as encoders, multiplexers and switches as shown in Figure 3.

[Image removed.]




Standard NumberBS EN 60728-5:2016
TitleCable networks for television signals, sound signals and interactive services. Headend equipment
StatusCurrent, Under review
Publication Date30 April 2016
Normative References(Required to achieve compliance to this standard)EN 60068-2-30, ETSI EN 302 755, IEC 60068-2-40, IEC 60068-2-31, IEC 60068-2-2:1974, IEC 60728-2, IEC 61319-1, IEC 60068-2-30, EN 60728-3:2011, EN 60728-11, ETSI TR 101 211, ITU-T Recommendation J.61, IEC 60068-2-27, IEC 60068-2-14, ETSI EN 300 421, IEC 60728-1, EN 60068-2-31, ITU-R Report BT.624-4, EN 60529, ITU-T Recommendation J.101, IEC 60728-3:2010, IEC 60728-11, ISO/IEC 13818-1, EN 50083-2, ETSI EN 300 473, EN 60068-2-27, ETSI EN 300 468, ITU-R Recommendation BS.468-4, ETSI ETS 300 163, ETSI EN 300 744, ISO/IEC 13818-4, ISO/IEC 13818-2, ISO/IEC 13818-3, IEC 60068-2-1, EN 60068-2-40, IEC 60529, EN 60068-2-14, EN 61319-1, ETSI EN 302 307, EN 60244-5, ETSI EN 300 429, EN 60068-2-2, EN 60728-1, IEC 60244-5, EN 60068-2-1
Informative References(Provided for Information)ETSI ETS 300 158, EN 61169-8, IEC 60417, ETSI ES 202 488, IEC 60050, ETSI TS 102 034, IEC 61169-2:2001, IEC 60617, ETSI ES 201 488, IEC 61169-8, ETSI ETS 300 249, CLC/TR 50083-5-1, EN 60050, IEC 60130-9, ETSI ETS 300 457, EN 60130-9, EN 50083-9, EN 61169-2:2001, ETSI ES 200 800, ETSI TS 102 831
ReplacesBS EN 60728-5:2008
International RelationshipsEN 60645-3:2007,EN 60728-5:2016,IEC 60728-5:2015
Draft Superseded By14/30280323 DC
DescriptorsTelecommunication systems, Telecommunication, Wire transmission (telecommunication), Electrical measurement, Communication networks, Grades (quality), Performance, Receivers, Acoustic signals, Communication equipment, Electrical testing, Television networks, Electrical wave measurement, Cable television, Visual signals, Television systems, Antennas, Electronic equipment and components, Broadcasting networks, Video signals
ICS33.060.40
Title in FrenchRéseaux de distribution par câbles pour signaux de télévision, signaux de radiodiffusion sonore et services interactifs. Équipements de tête de réseau
Title in GermanKabelnetze für Fernsehsignale, Tonsignale und interaktive Dienste. Geräte für Kopfstellen
CommitteeEPL/100/4
ISBN978 0 580 82393 0
PublisherBSI
FormatA4
DeliveryYes
Pages100
File Size2.906 MB
Price£280.00


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