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Database: 189760 (25 Oct 2025)
YD/T 997-1999 English PDF
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Standard Title (Description)
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YD/T 997-1999
English
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Specification for VB5.1 interface
Obsolete
YD/T 997-1999
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Basic data
Standard ID
YD/T 997-1999 (YD/T997-1999)
Description (Translated English)
Specification for VB5.1 interface
Sector / Industry
Telecommunication Industry Standard (Recommended)
Classification of Chinese Standard
M14
Word Count Estimation
139,133
Date of Issue
1/7/1999
Date of Implementation
7/1/1999
Adopted Standard
ITU-T G.967.1-1998, NEQ
Summary
This standard specifies the physical, procedural and protocol requirements between the access network (AN) and Service Node (SN) interface. In VB5. 1 reference point, in the Q3 interface control, the interface has a flexible virtual channel link (VPL) divided nature of flexible virtual channel link (VCL) allocation. This standard applies to the access network equipment and service nodes Production equipment and technology introduction.