GB/T 2789-1981
Abolished
GB/T 14731-2008
Active
National standards
GB/T 14731-2008 Synchronous digital hierarchy (SDH) bit rates
GB/T 14731-2008 Synchronous digital hierarchy (SDH) bit rates
Basic Information
Standard Code:
GB/T 14731-2008
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:
4 pages
Scope
This standard specifies the bit rates of each level of the Synchronous Digital Hierarchy (SDH) system. This standard applies to public and private telecommunications networks based on the SDH system, including network node interfaces (NNIs), optical cable digital line systems with SDH optical-electrical interfaces, digital microwave systems, and so on.
Development Information
Replace the following standards
Referenced Standards
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