Standards An Update

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Standards An Update

• Dr Roger Blakeway
• Chairman BSI EPL/100/4
• president_at_scte.org.uk www.scte.org.uk

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Standards An Update

• The Legal Position
• CENELEC takes precedence within the European
  Union National
• Committees (BSi) must publish CENELEC version and
  withdraw any
• conflicting existing national standard.
• Only BS EN50083 part 1 (Safety) and part 2
  (electromagnetic
• compatibility) are MANDATORY under the EU Low
  Voltage and EMC
• Directives.
• Other Standards are for guidance, good practice,
  freedom of trade
• and for use as specifications in contractual
  documents.

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Standards An Update

• Cable Network Standards in the UK
• 1980 SCTE Terminology Symbols for Cabled
  Distribution Systems
• 1982 IEC Publication 728
• Cabled Distribution Systems primarily
  intended for sound and television signals
  operating between 30MHz and 1GHz
• 19841987 BS6513 Wideband Cabled Distribution
  Systems
• 19942002 BS EN50083
• Cabled distribution systems for television and
  sound signals
• 2003 onwards BS EN60728
• Cabled networks for television signals, sound
  signals and interactive services

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Standards An Update

• BS6513 Wideband cabled distribution systems
• BS 6513-11984. Glossary of terms Current
• BS 6513-21984 Methods of measurement Current
• BS 6513-41984 Specification for performance
  requirements, for upstream television
• Current, Partially Replaced
• BS 6513-51987 Recommendations for one-way and
  interactive data services
• Current
• BS 6513-31984 Specification for performance
  requirements, for downstream
  television and f.m. sound radio signals
• Withdrawn, Superseded
• BS 6513-61987 Specification for safety
  requirements
• Withdrawn, Superseded

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Standards An Update

• BS EN50083 Cabled distribution systems for
  television and sound signals
•  
• BS EN 50083-11994 Safety requirements
  Current
• BS EN 50083-22001 Electromagnetic compatibility
  for equipment Current  
• BS EN 50083-32002 Active wideband equipment for
  coaxial cable networks
• Current
•  BS EN 50083-41999 Passive wideband equipment
  for coaxial cable networks
• Current
•  BS EN 50083-52002 Headend equipment
  Current
•  BS EN 50083-61998 Optical equipment
  Withdrawn, Superseded
•  BS EN 50083-71997 System performance
  Current
•  BS EN 50083-82002 Electromagnetic compatibility
  for networks Current
•  BS EN 50083-92002 Interfaces for CATV/SMATV
  headends and similar professional equipment for
  DVB/MPEG-2 transport streams Current
•  BS EN 50083-102002 System performance for
  return paths Current

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Standards An Update

• BS EN60728 Cabled networks for television
  signals, sound signals and interactive
  services
• BS EN60728-62003 Optical Equipment Current
• BS EN60728-7-12005 HFC Outside plant
  monitoring Current physical (PHY)
  layer
• BS EN60728-7-22005 HFC Outside plant
  monitoring Current MAC layer
• BS EN60728-7-32005 HFC Outside plant
  monitoring Current power supply to
  transponder interface bus (PSTIB)
• New

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Standards An Update

• So whats in the pipeline?
• With exception of EN50083-8 (system EMC),
  standards development and maintenance work is
  being transferred to IEC (IEC 60728) under
  Technical Committee 100 (TC100),Technical Area 5
  (TA5).
• In addition to general maintenance the increased
  scope of 60728 (balanced cables and extending to
  CPE) has meant that most of the Standards need to
  be re-evaluated.
• Part 8, system EMC is considered to be too
  specific to the European member governments
  requirements to transfer to IEC at present.

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Standards An Update

• Whats happening to EN50083 Cabled distribution
  systems for television and sound signals?
•  
• EN 50083-11993,A11997,A21997 Safety
  requirements ? IEC MT60728-11
• EN 50083-22001,A12005,prA22005 EMC for
  equipment Parallel Voting  
• EN 50083-32002 Active wideband equipment for
  cable networks ? IEC MT60728-3
• EN 50083-41998 Passive wideband equipment for
  cable networks ? IEC MT60728-4
• EN 50083-52001 Headend equipment ?
  IEC MT60728-5
• EN 50083-61997,prA12000 Optical equipment
  ? IEC MT60728-6
• EN 50083-71996,A12000 System performance
  ? IEC MT60728-1
• EN 50083-82002,prA12005 EMC for networks
  CENELEC
• EN 50083-92002 Interfaces for CATV/SMATV
  headends and similar professional equipment for
  DVB/MPEG-2 transport streams ? IEC
  MT60728-9
• EN 50083-102002,prA12002 System performance
  for return paths ? IEC MT60728-10

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Standards An Update

• Work in progress in IEC 60728 Cabled networks for
  television signals, sound signals and interactive
  services
• IEC MT60728-1 System performance Ed4 2nd CD due
  10/2005
• IEC MT60728-2 Component EMC not active, parallel
  vote with CENELEC
• IEC MT60728-3 Active w/band eqpnt for cable
  networks Ed3 published 6/2005
• IEC MT60728-4 Passive w/band eqpnt for cable
  networks Ed3 CD 6/2005
• IEC MT60728-5 Headend equipment Ed3 CD 6/2005
• IEC MT60728-6 Optical equipment no current
  WIP
• IEC MT60728-7 Network Monitoring not active,
  parallel vote with CENELEC
• IEC MT60728-8 Network EMC not active, CENELEC
  specific
• IEC MT60728-9 Interfaces for CATV/SMATV headends
  and similar professional equipment for DVB/MPEG-2
  transport streams Ed1 Amd1 published 6/2005
• IEC MT60728-10 System performance for return
  paths Ed2 published 6/2005
• IEC MT60728-11 Safety requirements Ed 2 published
  1/2005, Ed3 starting

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Standards An Update

• IEC 60728 Cabled networks for television signals,
  sound signals and interactive services
• IEC 60728-1 (2001) Methods of measurement and
  system performance
• IEC 60728-2 (2002) Electromagnetic compatibility
  for equipment
• IEC 60728-3 (2005) Active coaxial wideband
  distribution equipment
• IEC 60728-4 (2000) Passive coaxial wideband
  distribution equipment
• IEC 60728-5 (2001) Headend equipment
• IEC 60728-6 (2003) Optical equipment
• IEC 60728-7 Hybrid fibre coax outside plant
  status monitoring
• IEC 60728-7-1 (2003) Physical (PHY) layer
  specification
• IEC 60728-7-2 (2003) Media access control (MAC)
  layer specification
• IEC 60728-7-3 (2003) Power supply to transponder
  interface bus (PSTIB) specification
• IEC 60728-9 (2000), Amnd 1 (2005) Interfaces of
  cabled distribution systems for digitally
  modulated signals
• IEC 60728-10 (2005) System performance of return
  path
• IEC 60728-11 (2005) Safety
• IEC 60728-12 (2001) Electromagnetic
  compatibility of systems
• based on CENELEC EN8003
  version New

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Standards An Update

• EN 60728 Cabled networks for television signals,
  sound signals and
  interactive services
• EN 60728-3 (2005) Active w/band eqpnt
  ready for publication
• EN 60728-6 (2003) Optical equipment
• EN 60728-7 Hybrid fibre coax outside plant
  status monitoring
• EN 60728-7-1 (2005 Physical (PHY) layer
  specification
• EN 60728-7-2 (2005) Media access control (MAC)
  layer specification
• EN 60728-7-3 (2005) Power supply to transponder
  interface bus (PSTIB)
  specification
• EN 60728-10 (2005) Return path performance
  ready for publication
• EN 60728-11 (2005) Safety
• already published as BS EN

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Standards An Update

• The New EMC Directive Why bother
• Better Clarity
• Distinction between apparatus and fixed
  installations, accurate definitions of
  components and sub-assemblies, specific
  exclusions e.g. aeronautical RTTE
• Less Burden on Manufacturers
• No mandatory independent assessment body
  required whether using Harmonised or not
• Better Enforcement
• Identification of manufacturer (or person
  responsible for placing on the market if not of
  EU origin)

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Standards An Update

• The New EMC Directive Timetable
• Entry into force 20/01/2005
• All national provisions incompatible with the
  act become inapplicable
• Deadline for transposition 20/1/2007
• Transposition must be performed, 89/336/EEC
  still into force, new directive cannot be applied
  even if transposed
• Date of application 20/07/2007
• Pivot date, 89/336/EEC is repealed, new
  directive can be applied from that date
• End of transitional period 20/07/2009
• New directive is of mandatory application,
  apparatus compliant with 89/336/EEC cannot be put
  on the market anymore

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Standards An Update

• Essential requirements
• Equipment shall be so designed and manufactured,
  having regard to the state of the art, as to
  ensure that
• The electromagnetic disturbance generated does
  not exceed the level above which radio and
  telecommunications equipment or other equipment
  cannot operate as intended
• It has a level of immunity to the
  electromagnetic disturbance to be expected in its
  intended use which allows it to operate without
  unacceptable degradation of its intended use.

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Standards An Update

• Assessment
• An EMC assessment must be performed, on the
  basis of relevant phenomena, to ensure that the
  protection requirements are met by either
• Use of harmonised standards
• Using other methods
• Or a combination of these

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Standards An Update

• Use of Harmonized Standards
• A harmonised standard can be a Mandate from the
  Commission or a standard prepared by a
  recognised European standardisation body
  (CEN,CENELEC or ETSI) and published as European
  Standard
• Note When referenced in the Official Journal
  of the European Union it gives presumption of
  conformity
• The correct application of all the relevant
  harmonised standards is equivalent to making an
  EMC assessment

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Standards An Update

• Use of other methods
• A thorough investigation of which EMC phenomena
  are relevant to the apparatus must be done
  including the intended use and location of use
• Acceptable limits must be established for
  compliance for the applicable phenomena
• Compliance must be established by tests,
  simulations, calculations
• The Technical File

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Standards An Update

• Specific requirements for fixed installations
• Installation and intended use of components
• A fixed installation shall be installed applying
  good engineering practices and respecting the
  information on the intended use of its
  components, with a view to meeting the protection
  requirements as set out.
• Those good engineering practices shall be
  documented and the documentation shall be held by
  the person(s) responsible at the disposal of the
  relevant national authorities for inspection
  purposes for as long as the fixed installation is
  in operation.

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Standards An Update

• Further information
• The New directive 2004/108/EC can be found at
• http//europa.eu.int/comm/enterprise/electr_equip
  ment/emc/directiv/dir2004_108.htm
• A guide to the use and application of the New
  directive is being produced and should be
  available in the near future the previous guide
  was considered to be essential reading for
  application of the directive.

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Standards An Update

• Useful Links
• SCTE www.scte.org.uk/members/technical/standards
  .html
• BSi www.bsi.org.uk
• CENELEC www.cenelec.org
• IEC www.iec.ch
• ETSI www.etsi.org
• ITU www.itu.org
• EBU www.ebu.ch
• DVB www.dvb.org
• US SCTE www.scte.org
• CableLabs www.cablelabs.com
• EU EMC europa.eu.int/comm/enterprise/electr_equip
  ment/emc/

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• Thank You
• Copies of this presentation, together with all
  references
• will be made available on the SCTE website.
• www.scte.org.uk

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