GB/T 11820-1989

Abolished

The requirements for urban optical fiber cable systems joined to national public telecommunication network

市内光缆通信系统进网要求

Standard Type
GBT
ICS
33.180.30
CCS
M33
Status
废止
Issue Date
1989-10-25
Implementation
1990-07-01
Responsible Dept
工业和信息化部（通信）
Drafting Unit
N/A