| File |
Size |
Date |
Recommendation title |
| r0002e.zip |
21KB |
06/64 |
R.2 - Element error rate
|
| r0004e.zip |
21KB |
11/80 |
R.4 - Methods for the separate measurements of the degrees of various types of telegraph distortion
|
| r0005e.zip |
21KB |
03/93 |
R.5 - Observation conditions recommended for routine distortion measurements on international telegraph circuits
|
| r0009e.zip |
21KB |
03/93 |
R.9 - How the laws governing distribution of distortion should be arrived at
|
| r0011e.zip |
22KB |
03/93 |
R.11 - Calculation of the degree of distortion of a telegraph circuit in terms of the degrees of distortion of the component links
|
| r0020e.zip |
45KB |
11/88 |
R.20 - Telegraph modem for subscriber lines
|
| r0021e.zip |
49KB |
08/96 |
R.21 - 9600 bit/s modem standardized for use in the telegraph TDM system
|
| r0022e.zip |
27KB |
08/96 |
R.22 - Data over voice 19 200 bit/s modem standarized for use on telephone network subscriber lines
|
| r0030e.zip |
21KB |
10/76 |
R.30 - Transmission characteristic for international VFT links
|
| r0031e.zip |
44KB |
10/84 |
R.31 - Standardization of AMVFT systems for a modulation rate of 50 bauds
|
| r0035-be.zip |
21KB |
06/64 |
R.35 bis - 50-baud wideband VFT systems
|
| r0035e.zip |
71KB |
11/88 |
R.35 - Standardization of FMVFT systems for a modulation rate of 50 bauds
|
| r0036e.zip |
22KB |
11/80 |
R.36 - 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
|
| r0037e.zip |
58KB |
11/88 |
R.37 - Standardization of FMVFT systems for a modulation rate of 100 bauds
|
| r0038ae.zip |
26KB |
11/88 |
R.38 A - Standardization of FMVFT system for a modulation rate of 200 bauds with channels spaced at 480 Hz
|
| r0038be.zip |
25KB |
10/84 |
R.38 B - 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
|
| r0039e.zip |
22KB |
11/88 |
R.39 - Voice-frequency telegraphy on radio circuits
|
| r0040e.zip |
20KB |
11/88 |
R.40 - Coexistence in the same cable of telephony and super-telephone telegraphy
|
| r0043e.zip |
21KB |
11/80 |
R.43 - Simultaneous communication by telephone and telegraph on a telephone-type circuit
|
| r0044e.zip |
35KB |
11/88 |
R.44 - 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
|
| r0049e.zip |
22KB |
12/60 |
R.49 - Interband telegraphy over open-wire 3-channel carrier systems
|
| r0050e.zip |
21KB |
11/80 |
R.50 - Tolerable limits for the degree of isochronous distortion of code-independent 50-baud telegraph circuits
|
| r0051-be.zip |
32KB |
11/88 |
R.51 bis - Standardized text for testing the elements of a complete circuit
|
| r0051e.zip |
27KB |
11/88 |
R.51 - Standardized text for distortion testing of the code-independent elements of a complete circuit
|
| r0052e.zip |
21KB |
12/72 |
R.52 - Standardization of international texts for the measurement of the margin of start-stop equipment
|
| r0053e.zip |
22KB |
10/84 |
R.53 - Permissible limits for the degree of distortion on an international 50-baud/120-Hz VFT channel (frequency and amplitude modulation)
|
| r0054e.zip |
21KB |
03/93 |
R.54 - Conventional degree of distortion tolerable for standardized start-stop 50-baud systems
|
| r0055e.zip |
20KB |
03/93 |
R.55 - Conventional degree of distortion
|
| r0056e.zip |
20KB |
03/93 |
R.56 - Telegraph distortion limits to be quoted in Recommendations for equipment and transmission plans
|
| r0057e.zip |
22KB |
11/88 |
R.57 - Standard limits of transmission quality for planning code-independent international point-to-point telegraph communications and switched networks using 50-baud start-stop equipment
|
| r0058-be.zip |
22KB |
10/84 |
R.58 bis - Limits on signal transfer delay for telegraph, telex and gentex networks
|
| r0058e.zip |
34KB |
06/64 |
R.58 - Standard limits of transmission quality for the gentex and telex networks
|
| r0059e.zip |
21KB |
10/84 |
R.59 - Interface requirements for 50-baud start-stop telegraph transmission in the maritime mobile satellite service
|
| r0060e.zip |
20KB |
10/84 |
R.60 - Conditions to be fulfilled by regenerative repeaters for start-stop signals of International Telegraph Alphabet No. 2
|
| r0062e.zip |
21KB |
10/84 |
R.62 - Siting of regenerative repeaters in international telex circuits
|
| r0070-be.zip |
67KB |
10/68 |
R.70 bis - Numbering of international VFT channels
|
| r0070e.zip |
21KB |
10/84 |
R.70 - Designation of international telegraph circuits
|
| r0071e.zip |
22KB |
12/56 |
R.71 - Organization of the maintenance of international telegraph circuits
|
| r0072e.zip |
20KB |
06/64 |
R.72 - Periodicity of maintenance measurements to be carried out on the channels of international VFT systems
|
| r0073e.zip |
22KB |
10/84 |
R.73 - Maintenance measurements to be carried out on VFT systems
|
| r0074e.zip |
20KB |
11/80 |
R.74 - Choice of type of telegraph distortion-measuring equipment
|
| r0075-be.zip |
21KB |
10/84 |
R.75 bis - Maintenance measurements of character error rate on international sections of international telegraph circuits
|
| r0075e.zip |
22KB |
10/84 |
R.75 - Maintenance measurements on code-independent international sections of international telegraph circuits
|
| r0076e.zip |
20KB |
06/64 |
R.76 - Reserve channels for maintenance measurements on channels of international VFT systems
|
| r0077e.zip |
66KB |
10/68 |
R.77 - Use of bearer circuits for voice-frequency telegraphy
|
| r0078e.zip |
20KB |
12/60 |
R.78 - Pilot channel for AMVFT systems
|
| r0079e.zip |
112KB |
11/88 |
R.79 - Automatic tests of transmission quality on telegraph circuits between switching centres
|
| r0080e.zip |
22KB |
06/64 |
R.80 - Causes of disturbances to signals in VFT channels and their effect on telegraph distortion
|
| r0081e.zip |
20KB |
10/51 |
R.81 - Maximum acceptable limit for the duration of interruption of telegraph channels arising from failure of the normal power supplies
|
| r0082e.zip |
22KB |
06/64 |
R.82 - Appearance of false calling and clearing signals in circuits operated by switched teleprinter services
|
| r0083e.zip |
21KB |
06/64 |
R.83 - Changes of level and interruptions in VFT channels
|
| r0090e.zip |
41KB |
10/84 |
R.90 - Organization for locating and clearing faults in international telegraph switched networks
|
| r0091e.zip |
21KB |
10/84 |
R.91 - General maintenance aspects for the maritime satellite telex service
|
| r0100e.zip |
34KB |
03/93 |
R.100 - Transmission characteristics of international TDM links
|
| r0101e.zip |
65KB |
03/93 |
R.101 - Code and speed dependent TDM system for anisochronous telegraph and data transmission using bit interleaving
|
| r0102e.zip |
51KB |
03/93 |
R.102 - 4800 bit/s code and speed dependent and hybrid TDM systems for anisochronous telegraph and data transmission using bit interleaving
|
| r0103e.zip |
42KB |
11/88 |
R.103 - Code and speed-dependent TDM 600 bit/s system for use in point-to-point or branch-line muldex configurations
|
| r0105e.zip |
26KB |
03/93 |
R.105 - 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
|
| r0106e.zip |
40KB |
08/95 |
R.106 - Muldex unit for telegraph and low speed data transmission using TDM bit interleaving with an aggregate bit rate higher than 4800 bit/s
|
| r0111e.zip |
45KB |
03/93 |
R.111 - Code and speed independent TDM system for anisochronous telegraph and data transmission
|
| r0112e.zip |
27KB |
03/93 |
R.112 - TDM hybrid system for anisochronous telegraph and data transmission using bit interleaving
|
| r0113e.zip |
33KB |
03/93 |
R.113 - Combined muldex for telegraphy and synchronous data transmission
|
| r0114e.zip |
23KB |
03/93 |
R.114 - Numbering of international TDM channels
|
| r0115e.zip |
63KB |
03/93 |
R.115 - Maintenance loops for TDM-systems
|
| r0116e.zip |
25KB |
11/88 |
R.116 - Maintenance tests to be carried out on international TDM systems
|
| r0117e.zip |
27KB |
03/93 |
R.117 - End-to-end error performance of telegraph, telex and gentex connections involving regenerative equipment
|
| r0118e.zip |
21KB |
03/93 |
R.118 - Performance and availability monitoring in regenerative TDM
|
| r0120e.zip |
21KB |
11/80 |
R.120 - Tolerable limits for the degree of isochronous distortion of code-independent telegraph circuits operating at modulation rates of 75, 100 and 200 bauds
|
| r0121e.zip |
22KB |
10/76 |
R.121 - Standard limits of transmission quality for start-stop user classes of service 1 and 2 on anisochronous data networks
|
| r0122e.zip |
196KB |
11/88 |
R.122 - Summary of transmission plans for rates up to 300 bauds
|
| r0140e.zip |
49KB |
11/88 |
R.140 - Definitions of essential technical terms in the field of telegraph transmission
|
| r0150e.zip |
53KB |
11/88 |
R.150 - Automatic protection switching of dual diversity bearers
|