Engineering Committee Scope Manual
TIA's Standards and Technology Department is composed of formulating groups consisting of Engineering Committees and their subcommittees and working groups. These formulating groups develop voluntary industry standards and specifications for telecommunications equipment and fiber optic products.
The scope statements below focus on the standards and specification writing mission of the committees and their subcommittees and working groups. All TIA engineering committees have the additional missions of:- development and maintenance of test methods and guidelines;
- providing technical studies and support to their sponsoring TIA divisions;
- formulation of engineering and technical inputs into government entities as related to the standards in their scope, or as requested by the
sponsoring TIA division or the Standards and Technology Department;
The scope of formulating groupsmay be revised or reordered from time to time in order to carry out the mission of the committee as set forth in the Engineering Manual.
Updated: October 4, 2007
TR-8 Mobile and Personal Private Radio Standards
TR-8.1 Equipment Measurement Procedues
WG-8.3 Encryption
WG-8.4 Vocoder
TR-8.5 Signaling and Data Transmission
TR-8.6 Equipment Performance Recommendations
TR-8.8 Broadband Data Systems
TR-8.10 Trunking and Conventional Control
TR-8.11 Antenna Systems
TR-8.15 Common Air Interface
TG-8.16 EDACS System and Standards Definition
TR-8.17 Exposure
TR-8.18 Wireless System Coverage and Compatibility
TR-8.19 Wireline system Interfaces
TR-14 Point-to-Point Communications [Inactive]
WG-8.3 Encryption
WG-8.4 Vocoder
TR-8.5 Signaling and Data Transmission
TR-8.6 Equipment Performance Recommendations
TR-8.8 Broadband Data Systems
TR-8.10 Trunking and Conventional Control
TR-8.11 Antenna Systems
TR-8.15 Common Air Interface
TG-8.16 EDACS System and Standards Definition
TR-8.17 Exposure
TR-8.18 Wireless System Coverage and Compatibility
TR-8.19 Wireline system Interfaces
TR-14.3 Station Grounding [Inactive]
TR-14.6 Standard Microwave Transmission Systems [Inactive]
TR-14.7 Structural Standards for Steel Antenna Towers and Antenna Supporting Structures
TR-14.9 Electrical and Mechanical Characteristics for Terrestrial Microwave Relay System Antennas and Passive Reflectors [Inactive]
TR-14.10 Electrical Performance Standards for Television Relay Facilities [Inactive]
TR-14.11 Interference Criteria for Microwave Systems in the Safety and Special Ratio Services [Inactive]
TR-30 Data Transmission Systems and Equipment
TR-14.6 Standard Microwave Transmission Systems [Inactive]
TR-14.7 Structural Standards for Steel Antenna Towers and Antenna Supporting Structures
TR-14.9 Electrical and Mechanical Characteristics for Terrestrial Microwave Relay System Antennas and Passive Reflectors [Inactive]
TR-14.10 Electrical Performance Standards for Television Relay Facilities [Inactive]
TR-14.11 Interference Criteria for Microwave Systems in the Safety and Special Ratio Services [Inactive]
TR-30.1 Modems
TR-30.2 DTE-DCE Interfaces and Protocols
TR-30.3 Data Communications Equipment Evaluation and Network Interfaces
TR-30.5 Facsimilie Systems & Equipment
TR-34 Satellite Equipment and Systems
TR-30.2 DTE-DCE Interfaces and Protocols
TR-30.3 Data Communications Equipment Evaluation and Network Interfaces
TR-30.5 Facsimilie Systems & Equipment
TR-34.1 Communications and Interoperability
TR-34.1.7 IP Over Satellite (IPoS)
TR-34.2 Spectrum and Orbit Utilization
TR-41 User Premises Telecomunications Requirements
TR-34.1.7 IP Over Satellite (IPoS)
TR-34.2 Spectrum and Orbit Utilization
TR-41.1 Multiline Terminal Systems (MLTS)
TR-41.2 Conformity Assessment [Inactive]
TR-41.3 Analog and Digital Wireline Terminals
TR-41.6 Wireless User Premises Equipment [Inactive]
TR-41.7 Environmental and Safety Considerations
TR-41.11 Administrative Regulatory Considerations [Inactive]
TR-42 Premises Telecommunications Cabling
TR-41.2 Conformity Assessment [Inactive]
TR-41.3 Analog and Digital Wireline Terminals
TR-41.3.1 Caller I.D. [Inactive]
TR-41.3.3 VoIP and PCM Transmission Performance
TR-41.3.5 Acoustics - 470C
TR-41.3.6 Resistance and Impedance - 470C
TR-41.3.7 Alerter - 470C
TR-41.3.8 Network Signaling - 470C
TR-41.3.9 Cordless
TR-41.3.12 Telephone Answering Devices Performance Requirements
TR-41.4 IP Telephony Infrastructures
TR-41.5 Multimedia Building Distribution Systems [Inactive]
TR-41.3.3 VoIP and PCM Transmission Performance
TR-41.3.5 Acoustics - 470C
TR-41.3.6 Resistance and Impedance - 470C
TR-41.3.7 Alerter - 470C
TR-41.3.8 Network Signaling - 470C
TR-41.3.9 Cordless
TR-41.3.12 Telephone Answering Devices Performance Requirements
TR-41.6 Wireless User Premises Equipment [Inactive]
TR-41.7 Environmental and Safety Considerations
TR-41.7.1 Harmonization of International Saftey Standards
TR-41.7.3 EMC Considerations
TR-41.7.4 Environmental Considerations
TR-41.9 Technical and Administrative Regulatory Considerations
TR-41.10 Private Integrated Services Networks (PISN)
{Inactive}
TR-41.7.3 EMC Considerations
TR-41.7.4 Environmental Considerations
TR-41.11 Administrative Regulatory Considerations [Inactive]
TR-42.1 Generic Telecommunications Cabling and Premises Cabling
TR-42.2 Residential Telecommunication Infrastructure
TR-42.3 Commercial Building Telecommunications Pathways and Spaces
TR 42.3.1 Premises Telecommunications Bonding & Grounding
TR-42.4 Customer-owned Outside Plant Telecommunications Infrastructure
TR-42.5 Telecommunications Infrastructure Terms and Symbols
TR-42.6 Telecommunications Infrastructure and Equipment Administration
TR-42.7 Telecommunications Copper Cabling Systems TR-42.8 Telecommunications Optical Fiber Cabling Systems
TR-42.9 Industrial Telecommunications Infrastructure
TR-4.11 Optical Systems TR-42.12.3 Passive Optical Devices and Components
TR-42.13.2 Interconnecting Devices
TR-42.13.3 Passive Component Reliability
TR-42.15 Fiber Optic Metrology
TR-45 Mobile and Personal Communications Systems Standards
TR-42.2 Residential Telecommunication Infrastructure
TR-42.3 Commercial Building Telecommunications Pathways and Spaces
TR 42.3.1 Premises Telecommunications Bonding & Grounding
TR-42.4 Customer-owned Outside Plant Telecommunications Infrastructure
TR-42.5 Telecommunications Infrastructure Terms and Symbols
TR-42.6 Telecommunications Infrastructure and Equipment Administration
TR-42.7 Telecommunications Copper Cabling Systems TR-42.8 Telecommunications Optical Fiber Cabling Systems
TR-42.9 Industrial Telecommunications Infrastructure
TR-4.11 Optical Systems TR-42.12.3 Passive Optical Devices and Components
TR-42.13.2 Interconnecting Devices
TR-42.13.3 Passive Component Reliability
TR-42.15 Fiber Optic Metrology
TR-45.1 Analog Technology - Mobile and Personal Communications Standards
TR-45.2 Wireless Intersystem Technology - Mobile and Personal Communications Standards
TR-45.3 Time Division Digital Technology - Mobile and Personal Communications Standards
TR-45.4 Radio to Switching Technology - Mobile and Personal Communications Standards
TR-45.5 Spread Spectrum Digital Technology - Mobile and Personal Communications Standards
TR-45.6 Adjunct Wireless Packet Data Technology - Mobile and Personal Communications Standards
TR-47 Terrestrial Mobile Multimedia Multicast
TR-45.2 Wireless Intersystem Technology - Mobile and Personal Communications Standards
TR-45.3 Time Division Digital Technology - Mobile and Personal Communications Standards
TR-45.4 Radio to Switching Technology - Mobile and Personal Communications Standards
TR-45.5 Spread Spectrum Digital Technology - Mobile and Personal Communications Standards
TR-45.6 Adjunct Wireless Packet Data Technology - Mobile and Personal Communications Standards
TR-47.1 Terrestrial Mobile Multimedia Multicast based on Forward Link Only technology
TR-47.2 Terrestrial Mobile Multimedia Multicast based on Digital Video Broadcasting for Handheld devices technology
FO-4 Committee on Fiber Optics [Inactive]
TR-47.2 Terrestrial Mobile Multimedia Multicast based on Digital Video Broadcasting for Handheld devices technology
Responsible for private radio communications systems, services and equipment including voice and data applications. TR-8 is responsible for all
technical matters of industry concern and the promulgation of standards, including definition of terms, methods of measurement, and equipment
specifications for land mobile radio.
The scope of this subcommittee is the definition of terms and methods of measurement for land mobile radio transceiver performance, including
mobile, portable (handheld) and fixed station equipment, excluding specific assigned activities within other TR-8 subcommittees.
The Encryption Working Group was established to develop the encryption standards for public-safety land mobile communications. These include
portable radios for hand-held operation, mobile radios for vehicular operation, base stations for fixed installations and other fixed equipment
for wide-area operation and console operator positions, as well as computer equipment for data communications and interconnection of said
components with other base stations or public-switched networks. The standards will define the means to secure digital information in a unified
manner to facilitate compatible operation among suppliers past, present and future. Such standards will, to the maximum extent possible, allow
the insertion of technology promising best performance for operational applications.
The Vocoder Working Group was created to develop and support vocoder standards for Project 25-compatible land mobile radio equipment. The goal
is the development of standards that sufficiently define the vocoder and specify verification methods such that competing manufacturers may produce inter-operable
equipment. These standards will include a technical description of the Project 25 standard vocoder and Improved Multiband Excitation (IMBE), as well
as methods for verifying a manufacturer's implementation of IMBE. In addition, this working group will maintain a reference vocoder and a limited
database of speech data files.
The scope of this subcommittee is the definition of terms, methods of measurement and equipment specifications for the signaling and data transmission subsystems of Private Land Mobile
radio products and systems, excluding specific assigned activities within other TR-8 subcommittees.
The scope of this formulating group is to produce standards for broadband public-safety communications. These standards will leverage existing
broadband standards and related technologies. These standards are necessary to achieve interoperability, mobility and security, and to meet public-safety user expectations.
The Trunking and Conventional Subcommittee Group shall address control methods to be used for land mobile radio standards developed by TR-8 or TR-8 subcommittees.
It is anticipated that, at a minimum, issues to be addressed will include resource access control methods; service control methods; conformance
measurement methods; performance measurement methods; inter-operability specifications and compliance measurement methods.
The Antenna Systems Subcommittee will define terms, methods of measurement and equipment specifications for radiating devices and associated components in public and private
land mobile radio systems. "Associated components" include all components that lie in the RF path between a radiating device and its associated
transmitter or receiver or between two radiating devices. This scope excludes specific activities assigned to other TR-8 subcommittees.
The Common Air Interface Subcommittee establishes standards defining the protocol necessary for digital-based equipment for land mobile services. The Common Air Interface is the radio
communications interface shared by portable, mobile and base station equipment. The Common Air Interface allows these radios to send and receive
digital information over a narrow-band radio channel.
The scope of this group is to develop a System and Standards Definition (SSD) document for a proposed standard for digital trunked land mobile products and systems,
compatible and inter-operable with existing Ericsson Enhanced Digital Access Communication System (Ericsson EDACS.)
The scope of the Wireless Systems Coverage and Compatibility Subcommittee is the definition of terms and methodology for the modeling, simulation and empirical performance verification of land mobile radio systems.
The subcommittee recommends methods for predicting interoperability between systems of both identical and differing modulation techniques.
The scope includes consideration of the prediction and measurement of radiowave propagation; the measurement and application of environment noise; the effects
of frequency stability; the characteristics of antenna system components; and the characteristics of transmitters and receivers.
This subcommittee's scope excludes subject areas that fall within the scope of other TR-8 sub-committees.
The Wireless Systems Interfaces Subcommittee is to establish standards defining interoperability, interconnection and compatibility between private land mobile radio services and wireline systems.
Wireline system interfaces may include, but are not limited to, console, fixed station, intersystem, telephone interconnect and network management.
Committee TR-14 is responsible for standards and recommended practices relating to terrestrial fixed point-to-point radio communications equipment and systems
(microwave radio), primarily in the frequency bands above 960 MHz. Excluded are land-mobile fixed stations operating below 960 MHz and ground
communications equipment operating in conjunction with space communications systems.
TR-14.3 develops standards and recommendations for grounding of microwave communication systems, including microwave equipment, multiplex and signaling equipment,
towers, antenna systems, power systems, building alarm systems, lightning protection systems and other accessories.
The work of TR-14.7 is to maintain and provide interpretation of ANSI/EIA/TIA-222, Structural Steel Standards for Steel Antenna Towers and
Supporting Structures. Work is underway to define changes for the next revision of ANSI/EIA/TIA-222. Planned changes are to align the standard with
the latest version of ASCE-7. Use of 3-second gusts instead of fastest-mile wind speeds and the use of load reduction factor design instead of
allowable stress design will be incorporated. Other anticipated changes include seismic loading considerations, safety facilities, foundations
and analysis of existing structures.
TR-30 is responsible for access, protocol and interface standards for modems,facsimile systems and multimedia platforms pertaining to wired
telecommunications networks. Standards include those for functional characteristics, interfaces, interworking (including protocols), electrical
and mechanical characteristics, and network models and evaluation procedures. The committee is also responsible for the development of proposed
U.S. contributions, relating to this work, to international standards fora. In addition, it provides a venue for discussion of company contributions
to these fora.
The subcommittee develops standards for DTE-DTE, DTE-DCE, and DCE-DCE interfaces, including electrical, functional, mechanical and operational aspects.
It develops standards for local protocols between DTE and DCE at the DTE-DCE interface. The subcommittee also develops draft U.S. positions
relating to its standards development work for presentation in international standards fora. A majority of its members serves as the physical
layer Technical Advisory Group (TAG) to ISO/IEC JTC 1/SC 6/WG 3.
TR-30.3 develops network model, test procedure and interface standards. The network model and test procedure standards are used to evaluate the
performance of Data Communications Equipment (DCE). The interface standards include the functional, mechanical and operational characteristics
between DCEs and telecommunications networks.
TR-30.5 develops standards relating to facsimile terminal equipment and systems; to the interfaces between facsimile terminal equipment and systems and
communication equipment, other facsimile terminal equipment; and transmission media. Standards include functional, electrical and mechanical
characteristics and communication protocols. Scope includes point-to-point and multipoint facsimile and audiographic services. Facsimile as
referred to here includes any system that transmits (and receives) still rasterized images, including bi-level, continuous tone and color images.
Scope does not include motion or freeze-frame video. This subcommittee is also responsible for the development of U.S. positions relating to facsimile and audiographic conferencing systems in
international standards fora.
TR-34 is responsible for standards for space telecommunication systems. This includes transmitters, receivers, antennas, spacecraft and associated equipment for
both space and earth segments, including multiple access and interfaces with other systems, as well as radiation phenomena, characteristics of
propagation along the path, and data transmission systems that are an integral part of the space system.
TR-34.1 encompasses issues such as interoperability among satellite and terrestrial systems and among satellite systems and services. These issues may
include both domestic and global technical standards that are important to the industry. TR-34.1 will oversee a structure of Task Groups
that may address specific issues. In issues in which there is common interest with organizations outside of TIA, liaisons may be established to
jointly determine how these interests may best be represented.
The mission of this group is the development of interface standards, technical reports, and position papers for service descriptions, network
architectures, user terminal specifications, functional elements and relevant protocol enhancements for efficient IP services over satellite
specifically targeted for an IP over satellite solution that addresses the residential market.
The documentation developed in this Working Group should promote the deployment of satellite-based solutions competitive to those currently
provided by access systems based on Digital Subscriber Line (DSL) and cable access systems (e.g., Data Over Cable Service Interface
Specification, DOCSIS).
TR-34.2 is responsible for standards and studies related to the efficient use of spectrum and orbit resources for satellite communications systems.
The work of TR-34.2 includes both space and earth segments of satellite communications systems and networks.
TR-34.2 draws on the broad interests and representation of the membership of TIA to create joint industry working groups to study subjects of
intense interest to the satellite communications community such as efficient use of spectrum through inter-service sharing by the new satellite
communications services and the existing or new terrestrial services.
This committee addresses voluntary standards for telecommunications terminal equipment and systems, specifically those used for voice service, integrated voice
and data service, and Internet Protocol (IP) applications. The work involves developing performance and interface criteria for equipment, systems
and private networks, as well as the information necessary to ensure their proper interworking with each other, with public networks, with IP
telephony infrastructures and with carrier-provided private-line services. It also includes providing input on product safety issues, identifying
environmental considerations for user premises equipment and addressing the administrative aspects of product approval processes. In addition,
TR-41 develops criteria for preventing harm to the telephone network, which become mandatory when adopted by the Administrative Council for Terminal
Attachments (ACTA).
TR-41.1 develops and maintains voluntary standards and technical reports on Multi-Line Telecommunications Systems (MLTS), including private branch
exchange equipment and key telephone systems, and on the interconnection of these equipments in private networks. These standards and reports
include performance and other criteria essential to the proper operation and interconnection of this equipment. The subcommittee maintains liaisons with other
standards-writing organizations in the United States., Canada and other nations, through the offices of Engineering Committee TR-41 as appropriate.
TR-41.1 may also undertake such engineering studies as Engineering Committee TR-41 may request.
TR-41.2 acts as a focal point for gathering, understanding and disseminating information relating to activities of national and international groups
working towards agreements for testing and approval processes of telecommunications equipment and associated software to international requirements
wherever practicable. The group encourages that a number of conformity assessment options, including self-declaration of conformance by registered
suppliers, be available to assure compliance with all applicable requirements. The group will also consider such other matters as may be relevant.
The subcommittee works towards identifying and understanding the requirements associated with conformity assessment options and undertakes the liaisons
necessary to influence the development of these requirements.
TR-41.3 develops and maintains voluntary standards relating to telecommunications terminal equipment, including wireline analog
and digital telephones and auxiliary equipment and devices. These standards include telephones with corded or cordless handsets, headsets, and
hands-free interfaces. The digital telephone standards include requirements for narrowband and wideband devices. These standards include acoustic
interface, electrical interface, network feature interface and performance criteria.
TR-41.3 may undertake engineering studies as requested by Committee TR-41. TR-41.3 is also the TIA focal point for issues related to cordless
telephone RF spectrum. TR-41.3 will maintain liaisons and may participate in joint standards development activities with other standards organization
in the United States, Canada and other countries through the offices of TR-41, as appropriate.
TR-41.3.1 develops Customer Premises Equipment (CPE) performance and interoperability standards for enhanced calling services, particularly Caller ID.
The immediate focus of the group is to write American National Standards Institute performance standards for Type 1 (on-hook data transmission)
and Type 2 (off-hook data transmission) caller-ID products. The Working Group also seeks industry consensus on a standardized method of
interworking between multiple Type 2 and Type 3 (Analog Display Services Interface) devices connected to the same telephone line.
TR-41.3.3 develops and maintains digital telephone set performance standards. For narrowband telephones, the group is responsible for ANSI/TIA/EIA-810-A; for
wideband telephones, it is responsible for TIA-920, Transmission Requirements for Wideband Digital Wireline Telephones.
Thescope of the workgroup is to review all handset acoustic performance requirements in TIA-470-B document, and to identify additional
handset Acoustic requirements that are not presently addressed, for industry consensus on the TIA/EIA-470.110-C document, to be published as
ANSI/TIA/EIA-470.110-C, Handset Acoustic Performance Requirements for Analog Terminal Equipment Connected to the Public Switched Telephone Network.
The scope of the workgroup is to review all the DC Resistance and AC Impedance performance requirements in the TIA-470-B document and to
identify additional R&Z requirements that are not presently addressed, for industry consensus on the TIA/EIA-470.210-C document, to be published
as ANSI/TIA/EIA-470.210-C.
The scope of the workgroup is to review all the Alerter Response and Acoustic performance requirements in the TIA-470-B document and to
identify additional alerter requirements that are not presently addressed, for industry consensus on the TIA/EIA-470.220-C document, to be
published as ANSI/TIA/EIA-470.220-C,.
The scope of the workgroup is to review all the DTMF and Pulse Dialing performance requirements in the TIA-470-B document, and to identify
additional dialing requirements that are not presently addressed, for industry consensus on the TIA/EIA-470.230-C document, to be published
as ANSI/TIA/EIA-470.230-C.
The IP Telephony Infrastructure Subcommittee develops standards and TSBs to assist in the development and deployment of IP Telephony Systems. These
documents promote call quality, reliability, security and interoperability of IP Telephony infrastructure components and between these components
and external networks. The subcommittee also liaises with other standards groups whose work affects elements within the IP Telephony Infrastructure.
The scope of TR-41.4.4, VoIP Terminals, is to develop standards for VoIP Terminals and End Points to promote the call quality, reliability,
security and interoperability of these terminals from basic telephony to the advanced feature level. The working group also seeks to promote
the interoperability of these terminals with other VoIP infrastructure equipment and applications such as call management systems, routing
systems and gateways.
TR-41.4.4 is responsible for TIA/EIA IS 811, Performance and Interoperability Requirements for Voice-over-IP (VoIP) Feature Telephones.
TR-41.5 acts as the focal point for the accumulation and integration of data through interface with standards bodies and fora involved in multimedia
projects in residential and commercial environments. The data is then be used as the baseline information in the development of standards on the
distribution of multimedia services.
The group provides recommendation on the system architecture required to support information access and multimedia services on customer premises.
TR-41.6 develops and modifies standards, specifications, bulletins and engineering publications for wireless user premises equipment operating in the
unlicensed spectrum allocation. Excluded are wireless equipment already covered in the scope and charter of Engineering Committee TR-32, High
Speed Wireless Local Area Network, projects authorized and assigned to IEEE-802.11, and currently authorized projects of TR-45 and TR-46 relevant
to licensed band premises applications.
As deemed necessary, the group calls for papers and performs analyses relevant to the issues of Wireless User Premises technology and issues appropriate
bulletins, engineering publications, or both. As deemed necessary, the group calls for papers, presentations, sponsorships of tutorials, workshops and
seminars, etc., on topics relevant to the issues of Wireless User Premises Technology and its use. The group provides technical liaison to organizations active
in spectrum or technical issues relevant to Wireless User Premises technology and use.
TR-41.7 develops, maintains and recommends adoption of standards on environmental, powering and grounding issues for telecommunications equipment included
in the scope of TR-41. These standards include service and performance criteria where standards do not exist. The subcommittee may develop guidelines
for applying existing standards.
This subcommittee may also undertake such engineering studies as Committee TR-41 may request.
The mission of the TR41.7.1 WG is to monitor international and North American telecommunications equipment safety issues and provide
recommendations to standards organizations such as IEC, UL and CSA for harmonized telecommunications equipment safety requirements and standards.
The scope of this workgroup is to review the Radio Frequency Immunity performance requirements in the TIA-631 document, to identify RFI
requirements that may not be presently addressed and update measurement procedures, for industry consensus on the TIA/EIA-631-A, Radio Frequency Immunity Requirements document,
to be published as ANSI/TIA/EIA-631-A, Telephone Terminal Equipment. Radio Frequency Immunity Requirements.
The scope of this workgroup is to review and update the Environmental Considerations requirements in the TIA-571-A document and to identify
requirements that may not be presently addressed, for industry consesus on the TIA-571-B document, to be published as ANSI/TIA-571-B, Telecommunications - Telephone Terminal Equipment - Electrical, Thermal, Mechanical Environmental Performance Requirements.
This subcommittee is a standards formulating group that initiates proposals and monitors regulations and related matters for wireline
telecommunications terminal equipment in North America.
The primary work of this subcommittee includes:
- development, maintenance and interpretation of technical requirements to prevent network harm (e.g., 47CFR Part 68, TIA-968)
- development and maintenance of related administrative requirements, guidelines and procedures
- development and maintenance of test methods and guidelines
- submission of technical and administrative documents to the Administrative Council for Terminal Attachments (ACTA) for adoption
- advising and responding to others (e.g., FCC, ACTA, Industry Canada, committees or individuals) on regulatory issues in the telecommunications terminal equipment environment
- efforts to foster harmonization with CS-03, other North American regulatory requirements and industry standards
The group will also consider such other regulatory matters it deems appropriate.
TR-41.92. was initially formulated to revise and rewrite TSB31-B – Part 68 Rationale and Measurement Guidelines to align with the latest FCC Part 68 and all
ACTA adopted technical requirements. This working group will be formulated and dissolved as required to work on revisions or larger work items
related to TSB31.
This working group writes test method proposals and monitors new requirements and additions to Part 68 and ACTA adopted technical requirements.
Since this is a working group and not a standards formulating group, its output is submitted to TR41.9 as a proposal for adoption by that
sub-committee.
TR-41.10 develops, maintains, and recommends standards for private network mobility. This subcommittee defines stages 1,2 and 3 of Private Integrated Services
Digital Network (ISDN) standards. Projects include PISN Basic Call (based on Q-SIG BC), PISN Generic Function Transport (based on Q-SIG GF), and
a number of supplementary services. Other related projects are Virtual Private Network (VPN), Enhanced 911 and private network mobility.
The subcommittee also develops U.S. and North American positions on technical issues of private networks and works with the US TAG administrator
on International Standards Organization (ISO) matters for ISO/International Electrotechnical Commission (IEC)/JTC1 submissions, as well as
recommending ISO/IEC/JTC1 standards for U.S. adoption.
TR-41.11 responds to administrative concerns on subject matters relating to Code of Federal Regulations (CFR) Part 68 and terminal attachment and advises
the FCC on administrative requirements in the regulatory environment.
The subcommittee initiates proposals and monitors new requirements and additions to Part 68 and CS-03 to foster harmonization wherever possible.
The subcommittee produces and maintains appropriate documentation relating to administrative activities (e.g., certification filings and waivers, etc.)
associated with the harmonized Part 68 requirements. This includes addenda and revisions to the administrative documents or guides, as required,
whenever the FCC adopts changes to the Part 68 rules.
The group will also consider such other administrative regulatory matters it deems appropriate.
The TR-42.1 Subcommittee develops and maintains cabling standards for generic customer-owned telecommunications networks. These standards are
intended to specify open systems designed to support a wide variety of voice, data, video and other low voltage, power-limited applications.
This subcommittee develops and maintains telecommunications cabling standards for premises networks such as commercial buildings, data centers,
building automation, etc. It specifies cabling system topology, architecture, design, installation, testing and performance requirements.
The TR-42.2 Subcommittee develops and maintains telecommunications standards for design, installation, testing and performance requirements of
cabling, pathways and spaces, for single and multi-tenant residential buildings, home offices, and campuses.
The TR-42.4 Subcommittee develops and maintains standards for customer-owned outside plant facilities in a campus environment, which includes
media (e.g., copper, optical fiber, wireless), protection and physical plant (pathways and spaces).
The TR-42.5 Subcommittee develops and maintains the master glossary of terms and symbols including acronyms, abbreviations, units of measurement,
and uses of templates for all standards developed in TR-42. It is a central point for resolving differences among committees in meaning or usage
of telecommunications terms.
The TR-42.6 Subcommittee develops and maintains standards for telecommunications administration. These standards include requirements for
alphanumeric identification, labeling, color coding and record keeping for the telecommunications infrastructure and guidance for administration of
equipment assets.
The TR-42.7 Subcommittee develops and maintains telecommunications copper cabling component and system requirements for premises networks. This
includes performance specifications, qualification procedures, and test methods for connecting hardware (including modular patch cords) and cable.
The TR-42.7.1 Working Group develops performance specifications, qualification procedures and test methods for copper twisted-pair connecting
hardware (including modular patch cords). This group's work is incorporated into standards and bulletins produced by TR-42.1, TR-42.2, and
TR-42.7.
The TR-42.9 Subcommittee develops and maintains standards for industrial facilities that can contain severe environmental conditions
(e.g., extreme temperature, dust, wetness, vibration, EMI/RFI, corrosive chemicals and hazardous gases). This subcommittee specifies cabling system,
topologies, architecture, design, installation, testing and performance requirements.
The TR-42.11 Subcommittee addresses several types of single-mode systems and parameters for both point-to-point
and point-to-multipoint transmission. It is responsible for:
- Fiber-Optic Test Procedures (FOTPs) for the measurement of
- Optical amplifier parameters
- Optical path attenuation, reflections, chromatic dispersion, polarization mode dispersion and non-linear effects
- Digital systems: bit-error ratio, optical eye pattern, extinction ratio, jitter and power penalties
- Analog systems: carrier-to-noise ratio, composite second-order distortion, composite triple-beat noise and cross modulation
- Network optical performance monitoring
- Design guidelines concerning physical layer photonic aspects of
- Single-mode fiber optic systems
- Multichannel (multiwavelength/WDM) systems
- All-optical networks
The TR-42.12 Subcommittee addresses multimode aspects of fiber, components, sub-systems, systems and
networks. It is responsible for:
- Characterization of multimode fiber, components, sub-systems and systems, particularly from the viewpoint of launching condition effects on loss and bandwidth
- Establishment of physical-layer optical and opto-electronic aspects of digital multimode systems, including on-premise and campus-wide spans
- Development of test methods to support physical-layer media-dependent design, installation, and conformance to established LAN standards
The FO-4.3 Engineering Subcommittee on Interconnecting Devices and Related Components is responsible for the development and maintenance of standards
for fiber optic interconnecting devices and related components such as connectors, cable assemblies, splices, splice closures and similar types of
components. Particular emphasis will be placed on harmonizing the technical content with standards being developed by the IEC for the purpose of
adoption/back adoption.
The TR-42.15 Engineering Subcommittee on Fiber Optic Metrology addresses fiber optic test, measurement and inspection instrumentation functionality
and related calibration issues in support of other fiber optic standards groups, test procedures and test methods. This includes, but is not
limited to:
- Determine instrument parameters or attributes that require specification.
- Propose and approve standards and specifications.
- Propose, review and approve test methods and procedures relevant to calibration, usage and maintenance.
- Coordinate with other standards bodies, and form joint task groups to resolve test and measurement issues of mutual interest.
TR-45 develops performance, compatibility, inter-operability and service standards for mobile and personal communications systems. These standards pertain to,
but are not restricted to, service information, wireless terminal equipment, wireless base station equipment, wireless switching office equipment,
ancillary apparatus, auxiliary applications, inter-network and inter-system operations and interfaces. The TR-45 Committee shall coordinate, for the
purpose of consistency and to promote efficient and timely development of standards, with other TR Committees, international, foreign, or national
standards fora and with other appropriate organizations as their work requires.
Committee TR-45 operates within the Mission Statement of the Telecommunications Industry Association and under the direct supervision and
guidelines of the Technical Committee, the Technical Standards Subcommittee and the Wireless Communications Division.
The standards development programs of Committee TR-45 operate under the accreditation awarded to the Telecommunications Industry Association by
the American National Standards Institute. Committee TR-45 operates under the guidelines of the Telecommunications Industry Association.
Subcommittee TR-45.1 is assigned the authority to develop performance, compatibility and inter-operability standards for equipment that makes use
of analog technology for wireless radio communication in a system that supports any combination of international, public, non-public, or residential
mobile and personal communications. These standards pertain to service definition, wireless mobile station equipment, wireless base station
equipment and ancillary apparatus, as covered by applicable Parts of the FCC Rules.
Subcommittee TR-45.1 shall coordinate, for the purpose of consistency and to promote efficient and timely development of standards, with other
subcommittees within TR-45, other TR Committees, other international, foreign or national standards bodies and appropriate industry organizations
as their work requires. Subcommittee TR-45.1 shall support efforts to promote standards developed within the subcommittee at international,
foreign or national standards fora.
Subcommittee TR-45.1 operates within the Mission Statement of the Telecommunications Industry Association and under the direct supervision and
guidelines of Committee TR-45.
The standards development programs of Subcommittee TR-45.1 operate under the accreditation awarded to the Telecommunications Industry Association
by the American National Standards Institute. Subcommittee TR-45.1 operates under the guidelines of the Telecommunications Industry Association.
TR-45.2 develops service definition and network interface standards for support of interoperability and intersystem operations, for interfaces between those network elements that comprise the infrastructure, in support of seamless service to wireless subscribers, other mobile and personal communication network systems, auxiliary systems, and to other networks.
Subcommittee TR-45.2 shall coordinate, for the purpose of consistency and to promote efficient and timely development of standards, with other subcommittees within TR-45, other TR Committees, other international, foreign or national standards bodies and appropriate industry organizations as their work requires. Subcommittee TR-45.2 shall support efforts to promote standards developed within the subcommittee at international, foreign or national standards fora.
Subcommittee TR-45.2 operates within the Mission Statement of the Telecommunications Industry Association and under the direct supervision and guidelines of Committee TR-45.
The standards development programs of subcommittee TR-45.2 operate under the accreditation awarded to the Telecommunications Industry Association by the American National Standards Institute. Subcommittee TR-45.2 operates under the guidelines of the Telecommunications Industry Association.
Subcommittee TR-45.3 is assigned the authority to develop performance, compatibilit, and inter-operability standards for equipment that makes use of Time Division Multiple Access (TDMA) technology for radio access in a system that supports any combination of international, public, non-public, or residential mobile and personal communications. These standards pertain to service definition, wireless mobile station equipment, wireless base station equipment and ancillary apparatus, as covered by applicable Parts of the Federal Communications Commission (FCC) Rules.
Subcommittee TR-45.3 shall coordinate, for the purpose of consistency and to promote efficient and timely development of standards, with other subcommittees within TR-45, other TR Committees, other international, foreign or national standards bodies and appropriate industry organizations as their work requires. Subcommittee TR-45.3 shall support efforts to promote standards developed within the Subcommittee at international, foreign or national standards fora.
Subcommittee TR-45.3 operates within the Mission Statement of the Telecommunications Industry Association and under the direct supervision and
guidelines of Committee TR-45.
The standards development programs of Subcommittee TR-45.3 operate under the accreditation awarded to the Telecommunications Industry Association by the American National Standards Institute. Subcommittee TR-45.3 operates under the guidelines of the Telecommunications Industry Association.
Subcommittee TR-45.4 develops performance, compatibility and inter-operability standards for public mobile and personal communications systems. These standards pertain to the
interfaces between the radio network and those network elements that comprise the infrastructure in support of services to wireless subscribers,
and may address service definition, ancillary apparatus, and auxiliary applications.
Subcommittee TR-45.4 shall coordinate, for the purpose of consistency, and to promote efficient and timely development of standards, with other Subcommittees within TR-45, other TR Committees, other international, foreign or national standards bodies and appropriate industry organizations as their work requires. Subcommittee TR-45.4 shall support efforts to promote standards developed within the Subcommittee at international, foreign or national standards fora.
Subcommittee TR-45.4 operates within the Mission Statement of the Telecommunications Industry Association and under the direct supervision and guidelines of Committee TR-45.
The Standards development programs of Subcommittee TR-45.4 operate under the accreditation awarded to the Telecommunications Industry Association by the American National Standards Institute. Subcommittee TR-45.4 operates under the guidelines of the Telecommunications Industry Association.