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www.ChineseStandard.net Database: 189759 (19 Oct 2025)
Industry Standard: YD, YD/T, YDT
         
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Std ID Description (Standard Title) Detail
YDC 069-2008 (800MHz CDMA 1X Digital Cellular Mobile Telecommunication Network High Rate Packet Data (HRPD) device testing method: an access terminal (second stage)) YDC 069-2008
YDC 070-2008 800MHz CDMA1X Digital Cellular Mobile Communication Networks: High Rate Packet Data (HRPD) Air Interface Specification (Phaseâ…¡) YDC 070-2008
YDC 071-2008 Technical Requirements for 800MHz CDMA 1X Digital Cellular Mobile Communications Network BCMCS Equipment - Access Network (AN) YDC 071-2008
YDC 072-2008 (800MHz CDMA 1X Digital Cellular Mobile Telecommunication Network Broadcast Multicast Service Equipment Technical Requirements: Core Network) YDC 072-2008
YDC 073-2008 (800MHz CDMA 1X Digital Cellular Mobile Telecommunication Network Broadcast Multicast Service Equipment Test Method: Core Network) YDC 073-2008
YDC 074-2008 Technical Requirements for 800MHz CDMA 1X Digital Cellular Mobile Communications Network BCMCS Equipment - Access Terminal (AT) YDC 074-2008
YDC 075-2008 (800MHz CDMA 1X Digital Cellular Mobile Telecommunication Network Broadcast Multicast Service A interface requirements) YDC 075-2008
YDC 076-2008 (800MHz CDMA 1X Digital Cellular Mobile Telecommunication Network Broadcast Multicast Service A interface test methods) YDC 076-2008
YDC 077-2008 (800MHz CDMA 1X Digital Cellular Mobile Telecommunication Network Broadcast Multicast Service air interface technology requirements) YDC 077-2008
YDC 078-2008 Technical Requirements for Push-to-chat (PoC) Service based on TD-SCDMA Digital Cellular Mobile Communications Network YDC 078-2008
YDC 084-2010 No. 7 signaling network based on IP bearer network technology requirements YDC 084-2010
YDC 085-2010 Mobile terminal open platform and application security framework YDC 085-2010
YDC 086-2010 Telecommunication lines and equipment against lightning discharge protection measures YDC 086-2010
YDJ 11-1987 Specification for installation design of long-distance manual telephone exchange equipment YDJ 11-1987
YDJ 1-1989 Specification for installation design of posts and communications power supply equipment YDJ 1-1989
YDJ 13-1988 Temporary technical regulations for engineering design of optical fiber digital transmission system of urban local telephone network YDJ 13-1988
YDJ 14-1991 (Telecommunication trunk cable digital transmission system line engineering Interim technical requirements) YDJ 14-1991
YDJ 15-1987 Specification for installation design of public telegraph and facsimile communication equipment YDJ 15-1987
YDJ 20-1988 Temporary Technical Regulation for Installation Design of Computerized Telephone Exchange Equipment YDJ 20-1988
YDJ 22-1987 Temporary technical regulations for engineering design of domestic satellite communication earth stations YDJ 22-1987
YDJ 26-1989 (Communication Bureau (station) Interim technical grounding design requirements (Building section)) YDJ 26-1989
YDJ 31-1983 Technical specifications for Installation engineering construction and acceptance of communication power supply equipment YDJ 31-1983
YDJ 35-1981 Technical specifications for Installation engineering construction and acceptance of long-distance communication open-wire carrier telephone equipment YDJ 35-1981
YDJ 36-1985 Technical specifications for engineering construction and acceptance of long-distance communication open-wire lines YDJ 36-1985
YDJ 37-1981 Technical specifications for Installation engineering construction and acceptance of urban local telephone exchange equipment YDJ 37-1981
YDJ 38-1985 Technical specifications for engineering construction and acceptance of urban local telephone lines YDJ 38-1985
YDJ 39-1990 (Communication pipeline construction and acceptance of technical specifications) YDJ 39-1990
YDJ 40-1984 Technical specifications for engineering construction and acceptance of radio short-wave communications YDJ 40-1984
YDJ 41-1986 Technical specifications for Installation engineering construction and acceptance of long-distance communication telephone exchange equipment YDJ 41-1986
YDJ 44-1989 Temporary Technical Specifications for Engineering Construction and Acceptance of Telecommunication Network Optical Fiber Digital Transmission System YDJ 44-1989
YDJ 50-1988 Technical specifications for Installation engineering construction and acceptance of urban local telephone SPC exchange equipment YDJ 50-1988
YDJ 5-1985 Specification for installation design of long-distance communications carrier telephone equipment YDJ 5-1985
YDJ 61-1990 Temporary Technical Specifications for Engineering Design of Urban Post and Telecommunication Suboffice YDJ 61-1990
YDJ 6-1984 Specification for engineering design of long-distance communication open-wire lines YDJ 6-1984
YDJ 7-1984 Specification for installation design of crossbar system urban local telephone exchange equipment YDJ 7-1984
YDJ 8-1985 Specification for engineering design of urban local telephone lines YDJ 8-1985
YDJ 9-1990 Specification for engineering design of urban local communication full-plastic cables lines YDJ 9-1990
YDN 001-1996 Technical Requirements for 160 Telephone Message Service (Tentative Specifications) YDN 001-1996
YDN 002-1996 (SDH digital cross-connect equipment (SDXC) Technical Requirements (Temporary Provisions)) YDN 002-1996
YDN 003-1996 (Fiber amplifier technology requirements) YDN 003-1996
YDN 004-1996 (Postal business window electronic system specification (Trial)) YDN 004-1996
YDN 005-1996 Access Network General View YDN 005-1996
YDN 006-1996 Technical Requirements for Centralized Management System of Automatic Telephone Charging Equipment (Tentative Specifications) YDN 006-1996
YDN 008-1996 Technical Requirements for Inquiry System of General Contractor and Vouchered Postal Material YDN 008-1996
YDN 009-1996 (Frame Relay network technology system) YDN 009-1996
YDN 010-1996 (Chinese Industry Standard) YDN 010-1996
YDN 010-1998 Technical conditions for automatic monitoring system of optical cable lines (internal standard) YDN 010-1998
YDN 011-1996 Business Technology System of Public Electronic Data Interchange (EDI) of China YDN 011-1996
YDN 012-1996 Technical requirements for flat mail sorting equipment (temporary provisions) YDN 012-1996
YDN 013-1996 (Postal financial computer network management technology requirements (Temporary Provisions)) YDN 013-1996
YDN 014-1996 (China postal financial computer network communication protocol TCP/IP (Interim..) YDN 014-1996
YDN 015-1996 (Post debit card - Magnetic Stripe Card Savings) YDN 015-1996
YDN 016-1996 Interface Requirements for MSC and PSTN of 900 MHz TDMA Digital Cellular Telecommunication Network YDN 016-1996
YDN 017-1996 (High-speed wireless paging network technology system (Temporary Provisions)) YDN 017-1996
YDN 018-1996 (High-speed wireless paging system air interface (Temporary Provisions)) YDN 018-1996
YDN 019-1996 (High-speed radio paging system user interface (Temporary Provisions)) YDN 019-1996
YDN 020-1996 (Interface Specification V5. 1 local digital switches and access network (internal standard)) YDN 020-1996
YDN 021-1996 (Interface Specification V5. 2 local digital switches and access network (internal standard)) YDN 021-1996
YDN 022.1-1996 Signalling Test Specifications for Mobile Application Part of 900 MHz TDMA Digital Cellular Telecommunication Network YDN 022.1-1996
YDN 023-1996 (Communication power supply and air conditioning centralized monitoring system technical requirements (Temporary Provisions) (internal standard)) YDN 023-1996
YDN 024-1997 (Access network technology requirements for fixed wireless access) YDN 024-1997
YDN 025-1997 Signalling Test Specifications for Interfaces between Mobile Services Switching Centre and Base Station of 900 MHz TDMA Digital Cellular Telecommunication Network YDN 025-1997
YDN 026-1997 Technical Requirements for SDH Transmission Network - Input Business and Maintainability Limit Value of SDH Digital Channel and Reuse Section YDN 026-1997
YDN 027-1997 Technical Requirements for SDH Transmission Network - Ring Network (Tentative Specifications) YDN 027-1997
YDN 028-1997 Protection of Fiberoptic Cable System and Equipment - Linear Reuse Section, Self-recovery Ring and Other Types of Structures (Tentative Specifications) YDN 028-1997
YDN 029-1997 (Transfer SDH PDH network unit - Function Description Frame and multiplexing structures and equipment (Temporary Provisions) (internal standard)) YDN 029-1997
YDN 030.1-1997 Implications and process of universal personal telecommunication, wide area Centrex switch (WAC), vote of telephone (VOT) and mass calling (MAS) services (internal standard) YDN 030.1-1997
YDN 030.2-1997 Code number and dialing procedure of universal personal telecommunication, wide area Centrex switch (WAC), vote of telephone (VOT) and mass calling (MAS) services (internal standard) YDN 030.2-1997
YDN 031-1997 Technical system of intelligent network (temporary regulations) (internal standard) YDN 031-1997
YDN 032-1997 Technology system requirements for ISDN YDN 032-1997
YDN 033-1997 Technical Requirements for Local Telephone Network Management YDN 033-1997
YDN 034.1-1997 ISDN subscribers - specification for network interfaces Part 1: Technical specification for physical layers YDN 034.1-1997
YDN 034.2-1997 ISDN subscribers - specification for network interfaces Part 2: Technical specifications for data link layers (internal standard) YDN 034.2-1997
YDN 034.3-1997 ISDN subscribers - specification for network interfaces Part 3: Technical specifications for third-layer basic call control (internal standard) YDN 034.3-1997
YDN 034.4-1997 ISDN subscribers - specification for network interfaces. Part 4 Technical specifications for supplementary services (internal standard) YDN 034.4-1997
YDN 034-1997 ISDN User - Specification on Network Interface YDN 034-1997
YDN 036-1997 (China postal financial computer network application layer protocol - Savings section) YDN 036-1997
YDN 037-1997 Synchronous digital hierarchy (SDH) - management functions, ECC and Q3 interfaces - Specifications for protocol stacks (temporary regulations) YDN 037-1997
YDN 038.1-1999 Specifications of Signalling System No. 7 - Isdn User Part YDN 038.1-1999
YDN 038-1997 Technical Specifications in National NO.7 Signaling Mode - Integrated Services Digital Network User Part (ISUP) (Tentative Specifications) YDN 038-1997
YDN 039-1997 Test Specifications for Transaction Capability Part in National NO.7 Signaling Mode YDN 039-1997
YDN 040-1997 Test method for N-ISDN (Narrowband-Integrated Services Digital Network) and PSTN interface signaling YDN 040-1997
YDN 041-1997 (1800MHz TDMA digital cellular mobile communication system technical requirements (Temporary Provisions)) YDN 041-1997
YDN 042-1997 (Feeder cable access network with the technical requirements) YDN 042-1997
YDN 043-1997 Technical Specification for No. 7 ISUP Signaling of Digital Cellular Telecommunication Network YDN 043-1997
YDN 044-1997 (800MHz CDMA digital cellular mobile communication network technology system (Temporary Provisions) (internal standard)) YDN 044-1997
YDN 045-1997 Basic Specifications for Management Network Information Model of Synchronous Digital Hierarchy (SDH) YDN 045-1997
YDN 046-1997 Technical Requirements for Automatic Accounting System of Telephone of Centralized Charging and Management Type (Tentative Specifications) YDN 046-1997
YDN 047-1997 Technical specifications for service switching points (SSP) of China intelligent network equipment (internal standard) YDN 047-1997
YDN 048-1997 Technical specifications for service control points (SCP) of China intelligent network equipment (internal standard) YDN 048-1997
YDN 049-1997 Technical specifications for service management points (SMP) of China intelligent network equipment (internal standard) YDN 049-1997
YDN 050-1997 Technical specifications for Service Create Environment Points (SCEP) of China Intelligent Network Equipment YDN 050-1997
YDN 051-1997 (High-speed wireless paging system networking protocols (Temporary Provisions) (internal standard)) YDN 051-1997
YDN 052-1997 Specifications for B-ISDNATM Layer YDN 052-1997
YDN 053.1-1997 Technical Specifications for Type 1 (AAL1) in Adaptation Layer of B-ISDN ATM YDN 053.1-1997
YDN 053.3-1997 Technical Specifications for Type 3/4 (AAL) in Adaptation Layer of B-ISDN ATM YDN 053.3-1997
YDN 053.4-1997 Technical Specifications for Type 5 (AAL) in Adaptation Layer of B-ISDN ATM YDN 053.4-1997
YDN 054-1997 Functional Characteristics of Asynchronous Transfer Model of B-ISDN YDN 054-1997
YDN 055-1997 Technical Speeifications for Mobile Station Equipment of 900/1800 MHz TDMA Digital Cellular Mobile Communications Network (Tentative Specifications) YDN 055-1997
YDN 056-1997 Technical Requirements for Access Network - High Bit Rate Digital Subscriber Line (HDSL) (Tentative Specifications) YDN 056-1997