�1���� Basic principle
������� 1.1���� Frame Alignment Signal (FAS)
������� 1.2���� Bit-rate Allocation Signal (BAS)
������� 1.3���� Encryption Control Signal (ECS)
������� 1.4���� Remaining capacity
�2���� Frame alignment
������� 2.1���� General
������� 2.2���� Multiframe structure
������� 2.3���� Loss and recovery of frame
alignment
������� 2.4���� Loss and recovery of multiframe
alignment
������� 2.5���� Procedure to recover octet timing
from frame alignment
����������������� 2.5.1���� General rule
����������������� 2.5.2���� Particular cases
����������������� 2.5.3���� Search for Frame Alignment Signal (FAS)
������� 2.6���� Description of the CRC4 procedure
����������������� 2.6.1���� Computation of the CRC4 bits
����������������� 2.6.2���� Consequent actions
������� 2.7���� Synchronization of multiple
connections
����������������� 2.7.1���� Multiple B‑connections
����������������� 2.7.2���� Multiple H0 connections
�3���� Bit-rate allocation signal
������� 3.1���� Encoding of the BAS
������� 3.2���� Values of the BAS
�4���� Bit-positions for audio, video and
data stream
������� 4.1���� LSD streams
������� 4.2���� Encoded audio streams
������� 4.3���� Encoded video streams
������� 4.4���� ISO-encoded audio streams
Annex A � Definitions and tables of BAS values
������� A.1���� Audio command values (000)
������� A.2���� Transfer-rate command values (001)
������� A.3���� Video, encryption, loop and other
commands (010)
������� A.4���� LSD/MLP commands (011)
������� A.5���� Audio capabilities (100)
������� A.6���� Video, MBE and encryption
capabilities (101)
������� A.7���� Transfer-rate capabilities (100)
������� A.8���� LSD/MLP capabilities (101) and
other (110)
������� A.9���� Escape table values (111)
������ A.10���� HSD/H-MLP/MLP capabilities (Table
A.2)
������ A.11���� HSD/H-MLP commands (Table A.2)
������ A.12���� Au-ISO commands (Table A.2)
������ A.13���� Au-ISO capabilities (Table A.2)
������ A.14���� Applications within LSD/HSD
channels � Capabilities (Table A.4)
������ A.15���� Applications within
LSD/HSD/MLP/H-MLP channels � Commands (Table A.4)
������ A.16���� Transfer-rate capabilities and
commands used in Channel Aggregation (Table A.6)
Annex B � Frame structure for interworking between a 64
kbit/s terminal �and a 56 kbit/s
terminal
������� B.1���� Sub-channel arrangement
������� B.2���� Operation of the 64 kbit/s
terminal
������� B.3���� Restriction against some
communication modes
������� B.4���� Audio command codes (000)