GB 12048-1989 Requirements for clock and synchronization equipment in digital networks
time:
2024-08-08 09:44:13
- GB 12048-1989
- in force
Standard ID:
GB 12048-1989
Standard Name:
Requirements for clock and synchronization equipment in digital networks
Chinese Name:
数字网内时钟和同步设备的进网要求
Standard category:
National Standard (GB)
-
Date of Release:
1989-01-02 -
Date of Implementation:
1990-07-01
Standard ICS number:
Telecommunications, audio and video technology>>Telecommunications systems>>33.040.40 Data communications networksChina Standard Classification Number:
Communications, Broadcasting >> Communications Network >> M13 Communications Network Structure
Release date:
1989-12-29Review date:
2004-10-14Drafting Organization:
Telecommunications Transmission Institute of the Ministry of Posts and TelecommunicationsFocal point Organization:
Ministry of Information Industry (Telecommunications)Publishing Department:
State Bureau of Technical SupervisionCompetent Authority:
Ministry of Information Industry (Telecommunications)
Description (Translated English) / downloadSkip to download
Summary:
This standard specifies the synchronization method used by my country's digital synchronization network, the classification of digital synchronization network, the performance of clocks at each level, interfaces and maintainability performance. This standard is applicable to the planning and design of domestic public digital synchronization network and the research, production and introduction of digital synchronization clocks and synchronization equipment. GB 12048-1989 Requirements for the entry of clocks and synchronization equipment in digital networks GB12048-1989 standard download decompression password: www.bzxz.net
- Recommended standards
- GB/T 16785-1997 Terminology work--Harmonization of concepts and terms
- QB/T 1763-1993 日用陶瓷机械产品型号编制方法
- JB/T 1308.18-1999 PN250a reducer types, dimensions and technical requirements
- GB/T 5282-1985 Slotted pan head tapping screws
- HG/T 3096-2001 Water gate rubber seals
- GB 12977-1991 Balancing machine protective cover and other safety measures
- GB/T 5650-1985 Hollow bolts for flared pipe joints
- GB/T 13912-1992 Metallic coatings-Hot dip galvanized coatings on fabricated ferrous products-Specification
- JB/T 5410-1991 Low vacuum electromagnetic pressure differential inflation valve type and
- HG/T 20701.2-2000 The relationship between the engineering design stage of containers and heat exchangers and various disciplines
- NY/T 439-2001 Apple Appearance Grade Standard
- JB/T 2001.21-1999 Water system centralized air release valve (PN=31.5MPa)
- GB 8286-1996 Flameproof mobile substation for mining
- GB/T 20000.3-2014 Guidelines for standardization—Part 3:Reference to documents
- JB/T 6725-1993 Test methods for spin-on oil filters for internal combustion engines
Please remember: "bzxz.net" is the combination of the first letters of the Chinese pinyin of the four Chinese characters "standard download" and the international top-level domain name ".net". ©2024 Standard download websitewww.bzxz.net Mail：wymp4wang@gmail.com