GB/T 11820-1989
市内光缆通信系统进网要求
The requirements for urban optical fiber cable systems joined to national public telecommunication network
- 实施日期
- 1990-07-01
- ICS 分类
- 33.180.30
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
找到 1,653 条
GB/T 11820-1989
The requirements for urban optical fiber cable systems joined to national public telecommunication network
GB/T 11594-1989
List of definitions for interchange circuits between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) on public data networks
GB/T 11592-1989
Interface between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) for start stop transmission services on public data networks
GB/T 11449.5-1989
Flanges for waveguides--Part 6:Relevant specification for flanges for medium flat rectangular waveguides
GB/T 11449.3-1989
Flanges for waveguides--Part3:Relevant specification for flanges for flat rectangular waveguides
GB/T 11449.2-1989
Flanges for waveguides--Part 2:Relevant specification for flanges for ordinary rectangular waveguides
GB/T 11449.1-1989
Flanges for waveguides--Part 1:General requirements
GB/T 11449.4-1989
Flanges for waveguides--Part 4:Relevant specification for flanges for circular waveguides
GB/T 11450.4-1989
Hollow metallic waveguides--Part 4:Relevant specifications for circular waveguides
GB/T 11450.3-1989
Hollow metallic waveguides--Part 3:Relevant specifications for flate rectangular waveguides
GB/T 11451-1989
Flexible waveguide assembly performance
GB/T 11450.6-1989
Hollow metallic waveguides--Part 7:Relevant specifications for square waveguides
GB/T 11450.5-1989
Hollow metallic waveguides--Part 6:Relevant specifications for medium flat rectangular waveguides
GB/T 11450.2-1989
Hollow metallic waveguides--Part 2:Relevant specifications for ordinary rectangular waveguides
GB/T 11450.1-1989
Hollow metallic waveguides--Part 1:General requirement and measuring methods
GB/T 11449.6-1989
Flanges for waveguides--Part 7:Relevant specification for flanges for square waveguides
GB/T 11447-1989
Methods of measurement of fibre-optic plates
GB/T 11443.4-1989
Domestic satellite communication earth stations--General technical requirements--Part 4:Television/ frequency modulation carrier channel
GB/T 11443.1-1989
Domestic satellite communication earth stations--General technical requirements--Part 1:Common performance
GB/T 11444.3-1989
Transmitter, receiver and ground communication equipment used in domestic satellite communication earth stations--Technical requirements--Part 3:Equipment for television/frequency modulation