CONTENTS

�1���� General characteristics
������� 1.1���� Bit rate
������� 1.2���� Timing signal
�2���� Frame structure
�3���� Frame alignment and CRC procedures
������� 3.1���� Loss of frame alignment
����� ��3.2���� Recovery of frame alignment
������� 3.3���� CRC multiframe alignment in time slot 0
������� 3.4���� CRC bit monitoring
�4���� Fault conditions and consequent actions
������� 4.1���� Fault conditions
������� 4.2���� Consequent actions
�5���� Interfaces
�6���� Jitter
������� 6.1���� Jitter at 2048 kbit/s output
������� 6.2���� Jitter at tributary outputs
������� 6.3���� Jitter transfer functions