Defines the requirements for an equipment to measure the performance of PCM equipments in analogue-to-digital(A-D),digital-to-analogue(D-A),analogue-to-analogue(A-A)and digital-to-digital (D-D) modes.
ITU-T O.133 FRENCH-1993 Referenced Document
ITU-T G.100 Vocabulary for performance and quality of service Study Group 12*， 2006-07-01 Update
ITU-T G.232 12-Channel Terminal Equipments - International Analogue Carrier Systems - General Characteristics Common to All Analogue Carrier-Transmission Systems
ITU-T G.703 Physical/electrical characteristics of hierarchical digital interfaces*， 2016-03-31 Update
ITU-T G.704 Synchronous Frame Structures Used at 154463122048 8448 and 44 736 kbit/s Hierarchical Levels - Series G: Transmission Systems and Media Digital Systems and Networks Digital Transmission Systems - Terminal Equipments - General Study Group 15; 44 pp*， 1998-04-19 Update
ITU-T G.711 PULSE CODE MODULATION (PCM) OF VOICE FREQUENCIES
ITU-T G.712 Transmission performance characteristics of pulse code modulation channels = SERIES G: TRANSMISSION SYSTEMS AND MEDIA DIGITAL SYSTEMS AND NETWORKS - Digital terminal equipments - Coding of analogue signals by pulse code modulation*， 2024-04-19 Update
ITU-T G.732 CHARACTERISTICS OF PRIMARY PCM MULTIPLEX EQUIPMENT OPERATING AT 2048 kbit/s
ITU-T G.733 CHARACTERISTICS OF PRIMARY PCM MULTIPLEX EQUIPMENT OPERATING AT 1544 kbit/s
ITU-T G.793 Characteristics of 60-Channel Transmultiplexing Equipments - General Aspects of Digital Transmission Systems; Terminal Equipments (Study Groups XV and XVIII) 9 pp
ITU-T G.794 Characteristics of 24-Channel Transmultiplexing Equipments - General Aspects of Digital Transmission Systems; Terminal Equipments (Study Groups XV and XVIII) 5 pp
ITU-T O.131 QUANTIZING DISTORTION MEASURING EQUIPMENT USING A PSEUDO-RANDOM NOISE TEST SIGNAL
ITU-T O.132 QUANTIZING DISTORTION MEASURING EQUIPMENT USING A SINUSOIDAL TEST SIGNAL
ITU-T O.3 Climatic Conditions and Relevant Tests for Measuring Equipment - Specifications of Measuring Equipment (Study Group IV) 7 pp
ITU-T O.41 Psophometer for Use on Telephone-Type Circuits - Specifications for Measuring Equipment - Equipment for the Measurement of Analogue Parameters (Study Group 4) 17 pp [Superseded: ITU-T P.53]*， 1994-04-19 Update
ITU-T O.9 Measuring Arrangements to Assess the Degree of Unbalance About Earth - Series O: Specifications of Measuring Equipment General Study Group 4; 19 pp*， 1999-03-01 Update
ITU-T Q.552 Transmission Characteristics at 2-Wire Analogue Interfaces of Digital Exchanges Series Q: Switching and Signalling Digital Exchanges - Transmission Characteristics Study Group 15*， 2024-04-19 Update
ITU-T Q.553 Transmission Characteristics at 4-Wire Analogue Interfaces of Digital Exchanges - Series Q: Switching and Signalling Digital Exchanges - Transmission Characteristics Study Group 15*， 2024-04-19 Update
ITU-T O.133 FRENCH-1993 history
1993ITU-T O.133 FRENCH-1993 EQUIPMENT FOR MEASURING THE PERFORMANCE OF PCM ENCODERS AND DECODERS Study Group IV