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  ITU-T A.5 justification information for referenced document ANSI T1.107-2002 in draft G.8112/Y.1371
1. Clear description of the referenced document:
Name: ANSI T1.107-2002
Title: Digital Hierarchy - Formats Specifications. This standard specifies digital hierarchy format requirements. This standard is intended to be used in conjunction with the American National Standard for Telecommunications - Digital Hierarchy - Electrical Interfaces, T1.102-1993 (R1999). Compliance with this standard is necessary if the various networks that comprise the hierarchy are to be interconnected.
2. Status of approval:
Approved as a standard.
3. Justification for the specific reference:
G.8112 specifies the use of the multiplexing of DS1 signals into a DS3 signal specified in T1.107.
4. Current information, if any, about IPR issues:
No known issues.
5. Other useful information describing the "Quality" of the document:
Standard of long-standing and widespread use.
6. The degree of stability or maturity of the document:
Standard of long-standing and widespread use.
7. Relationship with other existing or emerging documents:
Revision of ANSI T1.107-1995
8. Any explicit references within that referenced document should also be listed:
Not provided.
9. Qualification of ATIS:
ATIS is recognized under the provisions of ITU-T Recommendations A.5 and A.6. Qualifying information is on file at TSB.
10. Other (for any supplementary information):
None
Note: This form is based on Recommendation ITU-T A.5