ITU-T X.56 FRENCH-1988
INTERFACE BETWEEN SYNCHRONOUS DATA NETWORKS USING AN 8 + 2 ENVELOPE STRUCTURE AND SINGLE CHANNEL PER CARRIER (SCPC) SATELLITE CHANNELS

Standard No.

ITU-T X.56 FRENCH-1988

Release Date

1988

Published By

International Telecommunication Union (ITU)

Status

Withdraw

Latest

ITU-T X.56 FRENCH-1988

Scope

The CCITT considering (a) that the bearer rate recognized by the CCITT is 64 kbit/s; (b) that 64 kbit/s satellite channels on TDMA systems are not yet operational; (c) that 64 kbit/s channels on SCPC systems are under investigation; (d) that for an interim period, only 48, 50 or 56 kbit/s channels via a satellite will be available in many cases; (e) that there is a requirement of a multiplexing scheme for the interworking between two networks where both use 10-bit envelope structure but transmission is at a gross bit rate of 56 kbit/s, typically via an SCPC satellite system with forward error correction.

ITU-T X.56 FRENCH-1988 history

• 1988 ITU-T X.56 FRENCH-1988 INTERFACE BETWEEN SYNCHRONOUS DATA NETWORKS USING AN 8 + 2 ENVELOPE STRUCTURE AND SINGLE CHANNEL PER CARRIER (SCPC) SATELLITE CHANNELS