Standards
[GB] National Standards
[YD] Communication industry standards
[YDC] Communication standard technical documents for reference
[YDB] Communication Standard Technical Report
[YD] Communication industry standards

Communication industry standards£¨YD, YD/T and YDN£©£ºRegulatory documents issued and approved by the communications industry standardization authorities. The plan for standards developing is issued by the authority of communication standardization£¬while the draft standards are developed and examined by the CCSA, which are submitted to the industry authority for approval and issuance.

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Total 3943 items¡¡ Page 197/198¡¡ First | Prev | Next | Last
NoDocument #TitlePublish DateStatus
3921 YD 2012-1994 Technical specification of microwave relay communication equipment installation and acceptance 1994-01-01 Withdraw
3922 YD 2011-1993 Specification on Lightning Discharges and Earthing Edsign for Microwave Stations 1993-12-01 Withdraw
3923 YD/T 2008-1993 Standard for design of Telecommunications facilites in civic residential district and office buildings 1993-10-01 Withdraw
3924 YD/T 544-1992 Main Dimension of Telephone Transmiters 1992-01-01 Withdraw
3925 YD/T 545-1992 Main Dimensions of Telephone Receivers 1992-01-01 Withdraw
3926 YD/T 577-1992 Jack and Plug for Indoor Telephone 1989-03-31 In force
3927 YD/T 580-1992 The Technology of Wire-wrapping 1989-03-31 Withdraw
3928 YD/T 576-1992 Semiconductor Rectifier Equipments for Telecommunications 1988-12-30 Withdraw
3929 YD/T 562-1992 General Technical Requirements and Test Methods for Manual Toll Telephone Switching Equipments 1988-04-13 Withdraw
3930 YD/T 566-1992 Technical Requirement and Test Method for Monitor's Desk in Manual Toll Telephone Switching Equipments 1988-04-13 Withdraw
3931 YD/T 567-1992 Technical Requirement and Test Method for Exchanger of Operating Service in Manual Toll Telephone Switching Equipments 1988-04-13 Withdraw
3932 YD/T 568-1992 Technical Requirements and Test Methods for Relay in Manual Toll Telephone Switching Equipments 1988-04-13 Withdraw
3933 YD/T 569-1992 Technical Requirements and Test Methods for Ringing Power Sources Alarm and Distribution Frame in Manual Toll Telephone Switching Equipments 1988-04-13 Withdraw
3934 YD/T 559-1992 Sealing Test for Pressarized Waveguide Componet and Assemblies 1987-03-16 In force
3935 YD/T 560-1992 The Wire Configurations on Poles of Open-wire for Toll Telecommunications 1987-03-16 Withdraw
3936 YD/T 557-1992 The "Xin-4" Transposition System for Open-wire Telecommunication Line 1985-09-29 Withdraw
3937 YD/T 558-1992 The "Xin-8" Transposition System for Open-wire Telecommunication Lines 1985-09-29 Withdraw
3938 YD/T 552-1992 Measuring method for the channel attenuation distortion in the communication network 1984-07-17 Withdraw
3939 YD/T 553-1992 Specification for Group Translating Equipment Used on Carrier Systems 1984-07-17 Withdraw
3940 YD/T 554-1992 Specification for Channel Translating Equipment Used on Carrier Systems 1984-07-17 Withdraw


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