ITU-T G.761-1993 PDF

Scope: The 60-channel transcoder implements a conversion between two 30-channel 2048 kbit/s PCM streams and one 60-channel 2048 kbit/s ADPCM stream. In the 30-channel 2048 kbit/s streams, the telephone signals are coded using 64 kbit/s A-law PCM as specified in Recommendation G.711.

ITU-T G.761-1993 Referenced Document

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.706 Frame Alignment and Cyclic Redundancy Check (CRC) Procedures Relating to Basic Frame Structures Defined in Recommendation G.704 (Study Group XVIII) 19 pp
ITU-T G.711 PULSE CODE MODULATION (PCM) OF VOICE FREQUENCIES
ITU-T G.721 32 kbit/s Adaptive Differential Pulse Code Modulation (ADPCM) - General Aspects of Digital Transmission Systems; Terminal Equipments (Study Groups XV and XVIII) 38 pp
ITU-T G.735 CHARACTERISTICS OF PRIMARY PCM MULTIPLEX EQUIPMENT OPERATING AT 2048 kbit/s AND OFFERING SYNCHRONOUS DIGITAL ACCESS AT 384 kbit/s AND/OR 64 kbit/s
ITU-T G.761 GENERAL CHARACTERISTICS OF A 60-CHANNEL TRANSCODER EQUIPMENT
ITU-T Q.421 Line Signalling, Digital Version - Digital Line Signalling Code - Specifications of Signalling Systems R1 and R2 (Study Group XI) 2 pp

1993 ITU-T G.761-1993 GENERAL CHARACTERISTICS OF A 60-CHANNEL TRANSCODER EQUIPMENT