SJ/T 10594-1994 Generic specification for 7GHz digital microwave communication equipment

GB/T 12633-1990 Terms for the measurements of the properties of the piezoelectric crystals GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 3047.1-1995 Series of basic dimensions of panels, rack and cabinets for vertical increment of 20mm GB/T 3047.2-1992 Series of basic dimensions of panels, racks and enclosures for vertical increment of 44.45mm GB/T 3047.3-2003 Series of basic dimensions of subracks and plug-in units for vertical increment of 20mm GB/T 3047.5-2003 Series of basic dimensions of cabiners for vertical increment of 20mm GB/T 3047.6-1986 Series of basic dimensions of cases for electronic equipment GB/T 3047.6-2007 Series of basic dimensions of cases for electronic equipment GB/T 3047.8-1996 Series of basic dimension of narrow cabinets for vertical increment of 44.45mm GB/T 3873-1983 General specifications for products packaging of communication equipments GB/T 4110-1983 Pulse code modulation communication system hierarchy GB 4943-2001 Safety of information technology equipment GB 4943.1-2011 Information technology equipment—Safety—Part 1:General requirements GB 4943.1-2022 Audio/video,information and communication technology equipment—Part 1:Safety requirements GB 4943.21-2019 Information technology equipment—Safety—Part 21:Remote power feeding GB 4943.22-2019 Information technology equipment—Safety—Part 22:Equipment to be installed outdoor GB 4943.23-2012 Information technology equipment—Safety—Part 23:Large data storage equipment GB/T 6431-1986 Basic dimensions of narrow frame used for telecommunication equipment GB/T 7611-2001 Characteristics of the electrical interface at hierarchical bit rate for digital network GB/T 7611-2016 Characteristics of the electrical interface at hierarchicalbit rate for digital network GB/T 12640-1990 Methods of measurement for the digital microwave radio relay communication equipments GB/T 13426-1992 Reliability requirements and test methods for digital communication equipment GB/T 13543-1992 Environmental test methods for digital communi cation equipments GJB 151.4 GJB 152 GB/T 191-2025 Graphical symbols marking for handling and storage of packages GB/T 4943.2-2026 Audio/video,information and communication technology equipment—Part 2:Explanatory information related to GB 4943.1—2022