CONTENTS

1)��� �Clause 6.1, Basic signal structure�
2)��� �Clause 19.2.1, ODTU12�
3)��� �Clause 19.2.2, ODTU13�
4)��� �Clause 19.2.3, ODTU23�
5)��� �Clause 19.4, OPUk Multiplex Overhead��
6)��� �Clause 19.4.1, OPUk Multiplex Structure Identifier (MSI)�����������
7)��� �Clause 19.4.1.1, OPU2 Multiplex Structure Identifier (MSI)��������
8)��� �Clause 19.4.1.2, OPU3 Multiplex Structure Identifier (MSI)��������
9)��� �Clause 19.4.2, OPUk Payload Structure Identifier Reserved overhead (RES)�������
10)��� �Appendix I�����
11)��� �Appendix I, ODU1 into ODU2 multiplexing�������
12)��� �Appendix I, ODU2 into ODU3 multiplexing�������
13)��� �Appendix I, ODU1 into ODU3 multiplexing�������
14)��� �Appendix VI��� �