�1)����
Clause 7.3, AU-n/TU-n numbering scheme
2)���� Clause 7.3.3.1, Numbering of AU-4s (VC‑4s)
in an STM-16
3)���� Clause 7.3.3.2, Numbering of
AU-3s (VC‑3s) in an STM-16
4)���� Clause 7.3.3.3, Numbering of
AU-4-4cs (VC‑4-4cs) in an STM-16
5)�� ��Clause 7.3.4.2, Numbering of AU‑3s (VC‑3s) in an
STM-4
6)���� Clause 7.3.4.3, Numbering of an
AU-4-4c in an STM-4
7)���� Clause 7.3.5, Numbering of AU‑4
(VC‑4) in an STM‑1 signal
8)���� Clause 7.3.5.2, Numbering of AU‑3
(VC‑3) in an STM‑1 signal
9)���� Figure 7-27
10)���� Figure 11-4