Summary

Recommendation ITU-T J.83 covers the definition of the framing structure, channel coding and modulation for digital multi-programme signals for television, sound and data services distributed by cable networks.

This Recommendation has four annexes (Annexes A, B, C and D) that provide the specifications for the four digital television cable systems submitted to the ITU-T. This reflects the fact that a number of digital cable television systems had been developed and provisionally implemented before this standardization effort was undertaken by ITU.

This Recommendation recommends that those implementing new digital multi-programme services on existing and future cable networks should use one of the systems whose framing structure, channel coding and modulation are specified in Annexes A, B, C and D.