GB/T 2789-1981
Abolished
YD/T 3551-2019
Active
Industry standards-Postal and telecommunications
YD/T 3551-2019 The technical requirements for metropolitan access wavelength division multiplexing (WDM) systems
YD/T 3551-2019 The technical requirements for metropolitan access wavelength division multiplexing (WDM) systems
Price:
$ 30
Basic Information
Standard Code:
YD/T 3551-2019
Standard Type:
Industry standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Optical communication equipment
ICS Name:
\n Transmission system
Publish Date:
2019-11-11
Implement Date:
2020-01-01
Scope
All the requirements specified in this standard are universal and are intended to apply to organizations of all types, sizes, and those offering different products and services.
Development Information
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