GB/T 2789-1981
Abolished
GB/T 15940-2008
Active
National standards
GB/T 15940-2008 Basic multiplexing structure for synchronous digital hierarchy signals
GB/T 15940-2008 Basic multiplexing structure for synchronous digital hierarchy signals
Basic Information
Standard Code:
GB/T 15940-2008
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Optical communication equipment
ICS Name:
\n Transmission system
Publish Date:
2008-10-07
Implement Date:
2009-04-01
Pages:
12 pages
Scope
This standard specifies the multiplexing structure of synchronous digital hierarchy (SDH) signals at the network node interface (NNI). This standard applies to SDH systems in public and private telecommunications networks, as well as communication systems that adopt the SDH multiplexing structure, such as SDH transmission equipment, SDH digital microwave communication equipment, etc.
Development Information
Replace the following standards
Referenced Standards
ITU-T G.780:2004
Related Standards
GB/T 3383-1982
Active
GB/T 3383-1982 Telecommunication transmission unit—decibel
GB/T 4110-1983
Active
GB/T 4110-1983 Pulse code modulation communication system hierarchy
GB/T 5438-1985
Active
GB/T 5438-1985 Characteristics and measuring methods for monophonic and stereophonic transmissions
GB/T 7438-1987
Abolished
GB/T 7438-1987 Numbering for telex and low speed data in national communi cation network
GB/T 7554-1987
Active