ITU-T Recommendation database

EditionsRelated supplement(s)

Ed.	ITU-T Recommendation	Status	Summary	Table of Contents	Download
3	G Suppl. 40 (06/2010)	In force	here	here	here
2	G Suppl. 40 (11/2006)	Superseded	here	here	here
1	G Suppl. 40 (04/2004)	Superseded	here	here	here


ITU-T Supplement	Title	Status	Summary	Table of contents	Download
G Suppl. 4 (12/1972)	Certain methods of avoiding the transmission of excessive noise between interconnected systems	In force	-	-	here
G Suppl. 5 (10/1984)	Measurement of the load of telephone circuits under field conditions	In force	-	-	here
G Suppl. 7 (12/1972)	Loss-frequency response of channel-translating equipment used in some countries for international circuits	In force	-	-	here
G Suppl. 8 (12/1972)	Method proposed by the Belgian telephone administration for interconnection between coaxial and symmetric pair systems	In force	-	-	here
G Suppl. 17 (10/1984)	Group-delay distortion performance of terminal equipment	In force	-	-	here
G Suppl. 19 (10/1984)	Digital crosstalk measurement (method used by the Administrations of France, the Netherlands and Spain)	In force	-	-	here
G Suppl. 22 (10/1984)	Mathematical models of multiplex signals	In force	-	-	here
G Suppl. 26 (10/1984)	Estimating the signal load margin of FDM wideband amplifier equipment and transmission systems	In force	-	-	here
G Suppl. 27 (10/1984)	Interference from external sources	In force	-	-	here
G Suppl. 28 (10/1984)	Application of transmultiplexers, FDM codecs, data-in-voice (DIV) systems and data-over-voice (DOV) systems during the transition from an analogue to a digital network	In force	-	-	here
G Suppl. 29 (03/1993)	Planning of mixed analogue-digital circuits (chains, connections)	In force	-	here	here
G Suppl. 32 (11/1988)	Transfer of alarm information on 60-channel transmultiplexing equipment	In force	-	-	here
G Suppl. 34 (11/1988)	Temperature in underground containers for the installation of repeaters	In force	-	-	here
G Suppl. 35 (11/1988)	Guidelines concerning the measurement of wander	In force	-	-	here
G Suppl. 36 (11/1988)	Jitter and wander accumulation in digital networks	In force	-	-	here
G Suppl. 39 (09/2012)	Optical system design and engineering considerations	In force	here	here	here
G Suppl. 40 (06/2010)	Optical fibre and cable Recommendations and standards guideline	In force	here	here	here
G Suppl. 41 (06/2010)	Design guidelines for optical fibre submarine cable systems	In force	here	here	here
G Suppl. 42 (02/2011)	Guide on the use of the ITU-T Recommendations related to optical fibres and systems technology	In force	here	here	here
G Suppl. 43 (02/2011)	Transport of IEEE 10GBASE-R in optical transport networks (OTN)	In force	here	here	here
G Suppl. 44 (06/2007)	Test plan to verify B-PON interoperability	In force	here	here	here
G Suppl. 45 (05/2009)	GPON power conservation	In force	here	here	here
G Suppl. 46 (05/2009)	G-PON interoperability test plan between optical line terminations and optical network units	In force	here	here	here
G Suppl. 47 (09/2012)	General aspects of optical fibres and cables	In force	here	here	here
G Suppl. 48 (06/2010)	10-Gigabit-capable passive optical networks: Interface between media access control with serializer/deserializer and physical medium dependent sublayers	In force	here	here	here
G Suppl. 49 (02/2011)	Rogue optical network unit (ONU) considerations	In force	here	here	here
G Suppl. 50 (09/2011)	Overview of digital subscriber line Recommendations	In force	here	here	here
G Suppl. 51 (05/2012)	Passive optical network protection considerations	In force	here	here	here
G Suppl. 52 (09/2012)	Ethernet ring protection switching	In force	here	here	here
G Suppl. 1 (12/1972)	Calculation of the stability of international connections established in accordance with the transmission and switching plan	Superseded	-	-	here
G Suppl. 2 (12/1972)	Talker echo on international connection	Superseded	-	-	Not available
G Suppl. 2 (10/1976)	Talker echo on international connections	Superseded	-	-	Not available
G Suppl. 2 (11/1980)	Talker echo on international connections	Superseded	-	-	Not available
G Suppl. 2 (10/1984)	Talker echo on international connections	Superseded	-	-	Not available
G Suppl. 2 (11/1988)	Talker echo on international connections	Superseded	-	-	here
G Suppl. 3 (12/1972)	Evaluation of echo control devices	Superseded	-	-	here
G Suppl. 5 (12/1972)	Measurement of the load of telephone circuits	Superseded	-	-	Not available
G Suppl. 5 (10/1976)	Measurement of the load of telephone circuits under field conditions	Superseded	-	-	Not available
G Suppl. 5 (11/1980)	Measurement of the load of telephone circuits under field conditions	Superseded	-	-	Not available
G Suppl. 6 (12/1972)	Example showing how the total value of line noise specified for the hypothetical reference circuit on open-wire lines might be broken down into its various components	Superseded	-	-	here
G Suppl. 9 (12/1972)	Roll effect in coaxial pair systems	Superseded	-	-	here
G Suppl. 10 (12/1972)	Application of Recommendation B.4 concerning the use of decibel	Superseded	-	-	here
G Suppl. 11 (12/1972)	Data on the cable ships of various countries	Superseded	-	-	Not available
G Suppl. 11 (10/1976)	Data on the cable ships of various countries	Superseded	-	-	Not available
G Suppl. 11 (11/1980)	Data on the cable ships of various countries	Superseded	-	-	Not available
G Suppl. 11 (10/1984)	Data on the cable ships of various countries	Superseded	-	-	Not available
G Suppl. 11 (11/1988)	Data on cable ships and submersible equipments of various countries	Superseded	-	-	here
G Suppl. 13 (10/1976)	Noise at the terminals of the battery supply	Superseded	-	-	here
G Suppl. 14 (10/1976)	Methods for measuring regularity return loss	Superseded	-	-	here
G Suppl. 15 (10/1976)	Almost-differential quasi-ternary code (ADQ code)	Superseded	-	-	here
G Suppl. 17 (11/1980)	Group-delay distortion performance of terminal equipment	Superseded	-	-	Not available
G Suppl. 18 (11/1980)	Information on submarine cables used in deep water	Superseded	-	-	Not available
G Suppl. 18 (10/1984)	Information on submarine cables used in deep water	Superseded	-	-	here
G Suppl. 19 (11/1980)	Digital crosstalk measurement (method used by the Administrations of France, the Netherlands and Spain)	Superseded	-	-	Not available
G Suppl. 20 (11/1980)	Possible combinations of basic transmission impairments in hypothetical reference connections	Superseded	-	-	Not available
G Suppl. 20 (10/1984)	Possible combinations of basic transmission impairments in hypothetical reference connections	Superseded	-	-	here
G Suppl. 21 (11/1980)	The use of quantizing distortion units in the planning of international connections	Superseded	-	-	Not available
G Suppl. 21 (10/1984)	The use of quantizing distortion units in the planning of international connections	Superseded	-	-	here
G Suppl. 22 (11/1980)	Mathematical models of multiplex signals.	Superseded	-	-	Not available
G Suppl. 23 (11/1980)	Explanatory notes for the information of designers of a maritime mobile satellite	Superseded	-	-	Not available
G Suppl. 23 (10/1984)	Explanatory notes for the information of designers of a maritime mobile satellite system	Superseded	-	-	Not available
G Suppl. 23 (11/1988)	Explanatory notes for the information of designers of a maritime mobile satellite system	Superseded	-	-	here
G Suppl. 24 (10/1984)	Consideration concerning quantizing distortion units of some digital devices that process encoded signals	Superseded	-	-	here
G Suppl. 29 (11/1988)	Objective for the mixed analogue/digital chain of 4-wire circuits	Superseded	-	here	here
G Suppl. 30 (11/1988)	Transmission plan aspects of land mobile telephony networks	Superseded	-	here	here
G Suppl. 31 (11/1988)	Status of work of presently considered digital circuit multiplication equipment (DCME) documents	Superseded	-	here	here
G Suppl. 33 (11/1988)	Examples of fibre design guidelines (diagrams used in Japan and in the United Kingdom)	Superseded	-	-	here
G Suppl. 39 (10/2003)	Optical system design and engineering considerations	Superseded	here	here	here
G Suppl. 39 (2006) Erratum 1 (08/2006)	-	Superseded	-	-	here
G Suppl. 39 (02/2006)	Optical system design and engineering considerations	Superseded	here	here	here
G Suppl. 39 (12/2008)	Optical system design and engineering considerations	Superseded	here	here	here
G Suppl. 40 (04/2004)	Optical fibre and cable Recommendations and standards guideline	Superseded	here	here	here
G Suppl. 40 (11/2006)	Optical fibre and cable Recommendations and standards guideline	Superseded	here	here	here
G Suppl. 41 (2005) Erratum 1 (01/2006)	-	Superseded	-	-	here
G Suppl. 41 (05/2005)	Design guidelines for optical fibre submarine cable systems	Superseded	here	here	here
G Suppl. 41 (06/2007)	Design guidelines for optical fibre submarine cable systems	Superseded	here	here	here
G Suppl. 42 (02/2008)	Guide on the use of the ITU-T Recommendations related to optical technology	Superseded	here	here	here
G Suppl. 43 (11/2006)	Transport of IEEE 10G base-R in optical transport networks (OTN)	Superseded	here	here	here
G Suppl. 43 (02/2008)	Transport of IEEE 10GBASE-R in optical transport networks (OTN)	Superseded	here	here	here
G Suppl. 43 (12/2008)	Transport of IEEE 10GBASE-R in optical transport networks (OTN)	Superseded	here	here	here
G Suppl. 43 (06/2010)	Transport of IEEE 10GBASE-R in optical transport networks (OTN)	Superseded	here	here	here
G Suppl. 47 (10/2009)	General aspects of optical fibre and cable	Superseded	here	here	here