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Page Content The ITU is the leading publisher of telecommunication technology, regulatory and standard information. Over 4'500 titles in printed form and growing number on CD-ROM, DVD and Online. |
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Telecommunication Standardization Sector (ITU-T)
The main products of ITU-T are the Recommendations. At present, more than 3,000 Recommendations (Standards) are in force. Recommendations are standards that define how telecommunication networks operate and interwork. ITU-T Recommendations are non-binding, however they are generally complied with due to their high quality and because they guarantee the interconnectivity of networks and enable telecommunication services to be provided on a worldwide scale. Available individually, as a collection on DVD or with a 12 month-access Online subscription. |
ITU-T Web Home Page
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| Individual ITU-T Recommendations |
A Organization of the work of ITU-T
B Means of expression: definitions, symbols, classification
C General telecommunication statistics
D General tariff principles
E Overall network operation, telephone service, service operation and human factors
F Non-telephone telecommunication services
G Transmission systems and media, digital systems and networks
H Audiovisual and multimedia systems
I Integrated services digital network
J Cable networks and transmission of television, sound programme and other multimedia signals
K Protection against interference
L Construction, installation and protection of cables and other elements of outside plant
M TMN and network maintenance: international transmission systems, telephone circuits, telegraphy, facsimile and leased circuits |
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N Maintenance: international sound programme and television transmission circuits
O Specifications of measuring equipment
P Terminals and subjective and objective assessment methods
Q Switching and signalling
R Telegraph transmission
S Telegraph services terminal equipment
T Terminals for telematic services
U Telegraph switching
V Data communication over the telephone network
X Data networks and open system communications
Y Global information infrastructure and Internet protocol aspects
Z Languages and general software aspects for telecommunication systems |
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| Other ITU Publications from Telecommunication Standardization Sector (ITU-T) |
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| Optical Transport Networks from TDM to Packet | | This Handbook discusses the technologies covered by ITU-T Recommendations related to Synchronous Digital Hierarchy (SDH), Optical Transport Network (OTN) and Ethernet over Transport (EoT). Each chapter of this Handbook is dedicated to a specific aspect (architecture, multiplexing hierarchy, protection, synchronization, etc.) of SDH, OTN and EoT optical transport networks. Plesiochronous Digital Hierarchy networks, which are at present considered obsolete, and Multiprotocol Label Switching - Transport Profile, which is at a preliminary stage of standardization, are only mentioned in the Preface. Finally, the last chapter of the Handbook discusses automatically switched optical networks (ASON), based on the control planes introduced in addition to transport planes and management planes. |  | 2010
Publication Notice with Order Form
This Handbook discusses the technologies covered by ITU-T Recommendations related to Synchronous Digital Hierarchy (SDH), Optical Transport Network (OTN) and Ethernet over Transport (EoT). Each chapter of this Handbook is dedicated to a specific aspect (architecture, multiplexing hierarchy, protection, synchronization, etc.) of SDH, OTN and EoT optical transport networks. Plesiochronous Digital Hierarchy networks, which are at present considered obsolete, and Multiprotocol Label Switching - Transport Profile, which is at a preliminary stage of standardization, are only mentioned in the Preface. Finally, the last chapter of the Handbook discusses automatically switched optical networks (ASON), based on the control planes introduced in addition to transport planes and management planes. |
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| World Telecommunication Standardization Assembly Proceedings | |  | Johannesburg, 2008
Publication Notice with Order Form
WTSA proceedings contain Resolutions adopted by the assembly, Recommendations on the organization of the work of ITU T (A-series), the list of the study groups, the advisory group and any other groups established or maintained by the assembly, with their titles and general areas of work, the titles of the Questions (continuing or newly approved for study) and their allocation, and the reports of the committees of the assembly. |
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Florianópolis, 2004
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| |  | Florianópolis, 2004
Book 2 contains the reports of the Assembly, the list of participants and the list of documents. |
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| Mitigation measures for telecommunication installations | |  | 2008
Publication Notice with Order Form
This handbook describes case studies, supplied by ITU-T Study Group 5 members, of electromagnetic compatibility (EMC) interference problems that have affected telecommunication systems related to emission and immunity, overvoltage and overcurrent, and the solutions to such problems. This handbook also indicates typical sources of interference as well as the solutions that can be used to restore correct service to the system or to avoid any such problems before they manifest themselves.
Whilst this handbook does not cover measurement methods or how to measure emissions, overvoltage or overcurrent, as these are covered within other ITU-T Recommendations, it does, through the case studies, suggest how to detect certain problems.
The electronic version of part 2 is free of charge. www.itu.int/ITU-T/mitigation/mitigation-p2.html |
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2008
2004
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| Earthing and Bonding | |  | 2003
Publication Notice with Order Form
This ITU-T handbook on Earthing and Bonding is for use by engineers designing telecommunication systems, especially those concerned with applying protective measures. It aims to give the user a background to various terms used within the telecommunication and power industry regarding earthing and bonding of equipment and structures (Chapter 1) in various parts of the world. The concepts of earthing and bonding are described (Chapter 2) together with how to implement such methods (Chapters 3 and 4), detailing why these are necessary and what the results may be if they are not performed correctly. The final section of the handbook shows how to evaluate and maintain the effectiveness/quality of the earthing systems and bonding networks thus created. |
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