TB SiteMapbreadcrumb separatorATTMbreadcrumb separatorSummary


Chairman: Dominique Roche

The Technical Committee (TC) ATTM addresses Access, Terminals, Transmission and Multiplexing including all aspects within the ETSI scope - cabling, installations, signal transmission, multiplexing and other forms of signal processing up to digitalization in private and public domain; excluding those aspects that relate to Hybrid Fibre-Coaxial cable networks which are covered by TC Cable. 

TC ATTM closely collaborates with the Technical Bodies responsible for communications, networking and services and the exact boundary between the activities is be adapted to the members’ needs. 

ATTM is organized around a set of ETSI work items addressing specific technologies,  equipment, installations and regulatory aspects of the physical layer e.g.:

  • Transmission issues of interfaces
  • Frequency management on the non-radio communication infrastructures
  • Analogue and digital presented communication interfaces of balanced wired (twisted pair), coaxial cable and optical fibre infrastructures
  • Interfaces based on new technologies, as far as they are relevant for communication infrastructures
  • Point-to-point and point-to-multipoint radio systems and infrastructures used for the fixed service (core and access networks), covering all equipment aspects including antenna parameters  
  • Transmission related aspects of network architecture(s) (including protection issues)
  • Specification of the transmission functions and performance of the network elements such as transmission paths, path elements, sections, systems, functional entities, antenna, cable and optical fibre
The interfaces referred to above could be public or private, switched or non-switched, seen from either the network or the terminal side.

TC ATTM consists of four Working Groups: 

WG AT2: Infrastructure, Physical Networks & Communication Systems

  • Standardisation work on general engineering of ICT networks and sites
  • Specifications of network topology and functional requirements
  • Specifications of transmission related to optical components, especially optical fibres and passive components
  • Specifications of requirements for optical fibre and optical cable characteristics related to transmission system performance
  • Specifications of functional and physical characteristics of interfaces, including allocations of overheads
  • Standardisation work on transmission network protection and future proof
  • Standardisation work on operational sustainability management (e.g. objective and global KPIs, operational end of life)

WG SDMC: Sustainable Digital Multiservice Communities

  • Standardisation work on specific engineering of Sustainable Digital Multiservice Cities & Communities ICT (Information Communication Technologies)
  • Specifications of topology and functional requirements
  • Specifications of functional and physical characteristics of interfaces
  • Standardisation work on operational sustainability management

WG TM4: Fixed Radio Systems

  • Specifications for point-to-point and multipoint radio systems, in the fixed service used in core and access networks, covering all equipment aspects including antenna parameters. Radio-frequency matters that may affect CEPT/ECC radio-frequency allocation and policy are excluded;
  • Functional requirements for radio-frequency equipment interface, including allocation of overhead;
  • Co-operation and technical support towards ECC/PT SE19 for channel arrangements and improved spectrum usage in the frequency bands allocated to fixed service (in co-ordination with ETSI WG ERM/RM)

WG TM6: Wireline Access Network Systems

  • Specification of functional and physical characteristics of signals and interfaces on the physical line and at the network and the user side particularly for DSL on balanced wired (twisted pair) infrastructures
  • Frequency and spectrum management of bands allocated to these systems
  • DSL aspect of filters and splitters
  • Specification of common DSL testing methodology