ITU-T Recommendations : Series R – Telegraph transmission
TAGS: ITU-T Recommendations Series R

ITU-T Recommendations : Series R

(Telegraph transmission)

ITU-T Recommendations In force – December 2000 edition
 
ITU-T Rec. R.2 (11/88) Element error rate
ITU-T Rec. R.4 (11/88) Methods for the separate measurements of the degrees of various types of telegraph distortion
ITU-T Rec. R.5 (03/93) Observation conditions recommended for routine distortion measurements on international telegraph circuits
ITU-T Rec. R.9 (03/93) How the laws governing distribution of distortion should be arrived at
ITU-T Rec. R.11 (03/93) Calculation of the degree of distortion of a telegraph circuit in terms of the degrees of distortion of the component links
ITU-T Rec. R.20 (11/88) Telegraph modem for subscriber lines
ITU-T Rec. R.21 (08/96) 9600 bit/s modem standardized for use in the telegraph TDM system
ITU-T Rec. R.22 (08/96) Data over voice 19 200 bit/s modem standardized for use on telephone network subscriber lines
ITU-T Rec. R.30 (11/88) Transmission characteristic for international VFT links
ITU-T Rec. R.31(11/88) Standardization of AMVFT systems for a modulation rate of 50 bauds
ITU-T Rec. R.35 bis (11/88) 50-baud wideband VFT systems
ITU-T Rec. R.35 (11/88) Standardization of FMVFT systems for a modulation rate of 50 bauds
ITU-T Rec. R.36 (11/88) Coexistence of 50-baud/120-Hz channels, 100-baud/240-Hz channels, 200-baud/360-Hz or 480-Hz channels on the same voice-frequency telegraph system
ITU-T Rec. R.37 (11/88) Standardization of FMVFT systems for a modulation rate of 100 bauds.
ITU-T Rec. R.38 A (11/88) Standardization of FMVFT system for a modulation rate of 200 bauds with channels spaced at 480 Hz
ITU-T Rec. R.38 B (11/88) Standardization of FMVFT systems for a modulation rate of 200 bauds with channels spaced at 360 Hz usable on long intercontinental bearer circuits generally used with a 3-kHz spacing
ITU-T Rec. R.39 (11/88) Voice-frequency telegraphy on radio circuits
ITU-T Rec. R.40 (11/88) Coexistence in the same cable of telephony and super-telephone telegraphy
ITU-T Rec. R.43 (11/88) Simultaneous communication by telephone and telegraph on a telephone-type circuit
ITU-T Rec. R.44 (11/88) 6-unit synchronous time-division 2-3-channel multiplex telegraph system for use over FMVFT channels spaced at 120 Hz for connection to standardized teleprinter networks
ITU-T Rec. R.49 (11/88) Interband telegraphy over open-wire 3-channel carrier systems
ITU-T Rec. R.50 (11/88) Tolerable limits for the degree of isochronous distortion of code-independent 50-baud telegraph circuits
ITU-T Rec. R.51 bis (11/88) Standardized text for testing the elements of a complete circuit
ITU-T Rec. R.51 (11/88) Standardized text for distortion testing of the code-independent elements of a complete circuit
ITU-T Rec. R.52 (11/88) Standardization of international texts for the measurement of the margin of start-stop equipment
ITU-T Rec. R.53 (11/88) Permissible limits for the degree of distortion on an international 50-baud/120-Hz VFT channel (frequency and amplitude modulation).
ITU-T Rec. R.54 (03/93) Conventional degree of distortion tolerable for standardized start-stop 50-baud systems
ITU-T Rec. R.55 (03/93) Conventional degree of distortion
ITU-T Rec. R.56 (03/93) Telegraph distortion limits to be quoted in Recommendations for equipment and transmission plans
ITU-T Rec. R.57 (11/88) Standard limits of transmission quality for planning code-independent international point-to-point telegraph communications and switched networks using 50-baud start-stop equipment
ITU-T Rec. R.58 bis (11/88) Limits on signal transfer delay for telegraph, telex and gentex networks
ITU-T Rec. R.58 (11/88) Standard limits of transmission quality for the gentex and telex networks
ITU-T Rec. R.59 (11/88) Interface requirements for 50-baud start-stop telegraph transmission in the maritime mobile-satellite service
ITU-T Rec. R.60 (11/88) Conditions to be fulfilled by regenerative repeaters for start-stop signals of International Telegraph Alphabet No. 2
ITU-T Rec. R.62 (11/88) Siting of regenerative repeaters in international telex circuits
ITU-T Rec. R.70 bis (11/88) Numbering of international VFT channels
ITU-T Rec. R.70 (11/88) Designation of international telegraph circuits
ITU-T Rec. R.71 (11/88) Organization of the maintenance of international telegraph circuits
ITU-T Rec. R.72 (11/88) Periodicity of maintenance measurements to be carried out on the channels of international VFT systems.
ITU-T Rec. R.73 (11/88) Maintenance measurements to be carried out on VFT systems
ITU-T Rec. R.74 (11/88) Choice of type of telegraph distortion-measuring equipment
ITU-T Rec. R.75 bis (11/88) Maintenance measurements of character error rate on international sections of international telegraph circuits
ITU-T Rec. R.75 (11/88) Maintenance measurements on code-independent international sections of international telegraph circuits
ITU-T Rec. R.76 (11/88) Reserve channels for maintenance measurements on channels of international VFT systems
ITU-T Rec. R.77 (11/88) Use of bearer circuits for voice-frequency telegraphy
ITU-T Rec. R.78 (11/88) Pilot channel for AMVFT systems
ITU-T Rec. R.79 (11/88) Automatic tests of transmission quality on telegraph circuits between switching centers
ITU-T Rec. R.80 (11/88) Causes of disturbances to signals in VFT channels and their effect on telegraph distortion
ITU-T Rec. R.81 (11/88) Maximum acceptable limit for the duration of interruption of telegraph channels arising from failure of the normal power supplies
ITU-T Rec. R.82 (11/88) Appearance of false calling and clearing signals in circuits operated by switched teleprinter services
ITU-T Rec. R.83 (11/88) Changes of level and interruptions in VFT channels
ITU-T Rec. R.90 (11/88) Organization for locating and clearing faults in international telegraph switched networks.
ITU-T Rec. R.91 (11/88) General maintenance aspects for the maritime satellite telex service
ITU-T Rec. R.100 (03/93) Transmission characteristics of international TDM links
ITU-T Rec. R.101 (03/93) Code and speed dependent TDM system for an isochronous telegraph and data transmission using bit interleaving
ITU-T Rec. R.102 (03/93) 4800 bit/s code and speed dependent and hybrid TDM systems for an isochronous telegraph and data transmission using bit interleaving
ITU-T Rec. R.103 (11/88) Code and speed-dependent TDM 600 bit/s system for use in point-to-point or branch-line muldex configurations
ITU-T Rec. R.105 (03/93) Duplex muldex concentrator, connecting a group of gentex and telex subscribers to a telegraph exchange by assigning virtual channels to time slots of a bit-interleaved TDM system
ITU-T Rec. R.106 (08/95) Muldex unit for telegraph and low-speed data transmission using TDM bit interleaving with an aggregate bit rate higher than 4800 bit/s
ITU-T Rec. R.111 (03/93) Code and speed independent TDM system for anisochronous telegraph and data transmission
ITU-T Rec. R.112 (03/93) TDM hybrid system for an isochronous telegraph and data transmission using bit interleaving
ITU-T Rec. R.113 (03/93) Combined muldex for telegraphy and synchronous data transmission
ITU-T Rec. R.114 (03/93) Numbering of international TDM channels
ITU-T Rec. R.115 (03/93) Maintenance loops for TDM-systems
ITU-T Rec. R.116 (11/88) Maintenance tests to be carried out on international TDM systems.
ITU-T Rec. R.117 (03/93) End-to-end error performance of telegraph, telex and gentex connections involving regenerative equipment
ITU-T Rec. R.118 (03/93) Performance and availability monitoring in regenerative TDM
ITU-T Rec. R.120 (11/88) Tolerable limits for the degree of isochronous distortion of code-independent telegraph circuits operating at modulation rates of 75, 100 and 200 bauds
ITU-T Rec. R.121 (11/88) Standard limits of transmission quality for start-stop user classes of service 1 and 2 on an isochronous data networks
ITU-T Rec. R.122 (11/88) Summary of transmission plans for rates up to 300 bauds
ITU-T Rec. R.140 (11/88) Definitions of essential technical terms in the field of telegraph transmission
 
ITU-T Rec. R.150 (11/88) Automatic protection switching of dual diversity bearers

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