2024-11-22 3.144.106.207
Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
Position: Search valid to be valid superseded to be superseded abolished to be abolished
Standard No. Title Price(USD) Delivery Status Add to Cart
GB 2095-1980 Electromechanical components for telephone switching system--Graphical symbols for operation sequence diagram 180.0 via email in 1~3 business day superseded,,1981-7-1
GB 3267-1982 The specification and test methods for conference telephone tandem board 340.0 via email in 1~3 business day superseded,1900-1-1,1983-5-1
GB 3268-1982 The specification and test methods for conference telephone SET 180.0 via email in 1~3 business day superseded,1900-1-1,1983-5-1
GB 5322-1985 Technical requirements and testing methods for crossbar private automatic branch exchange 105.0 via email in 1~3 business day valid,,1986-4-1
GB 6878-1986 Technical requirements and testing methods for local crossbar telephone switching systems 180.0 via email in 1~3 business day valid,,1987-10-1
GB 6879-1986 Specifications of 30 channels pulse code modulation multiplex equipment at 2048 kbit/s 1304.0 via email in 1~5 business day superseded,1996-8-1,1987-10-1
GB 6880-1986 Measuring methods of 30 channels pulse code modulation multiplex equipment at 2048 kbit/s 250.0 via email in 1~3 business day valid,,1987-10-1
GB/T 13994-1992 requirements for a 60 - Channel PCM/ADPCM transcoder equipment 600.0 via email in 1~3 business day abolished2017-12-15,,1993-8-1
GB/T 13995-1992 requirements for TDM/FDM 60 - Channel transmultiplexing equipment 370.0 via email in 1~3 business day abolished2017-12-15,,1993-8-1
GB/T 14130-1993 requirements for digital sections of metallic cables used in telecommunication network 150.0 via email in 1~3 business day abolished2017-12-15,,1993-8-1
GB/T 14131-1993 requirements for digital line systems on coaxial pair cables used in telecommunication network 100.0 via email in 1~3 business day abolished2017-12-15,,1993-8-1
GB/T 14132-1993 requirements for digital line systems on symmetric pair cables used in telecommunication network 120.0 via email in 1~3 business day abolished2017-12-15,,1993-8-1
GB/T 1492-1979 Method of test for telephones 220.0 via email in 1~3 business day valid,,1979-8-1
GB/T 1493-1979 Technical requirements for common battery telephones and automatic telephones 300.0 via email in 1~3 business day abolished2005-10-14,,1979-8-1
GB/T 1494-1979 Technical requirements for magnet/telephone 260.0 via email in 1~3 business day abolished2005-10-14 ,,1979-8-1
GB/T 2094-1980 Toll and local crossbar telephone switching system--Signal marks or colours of lamp and alarm ringer 180.0 via email in 1~3 business day valid,,1981-7-1
GB/T 5581-1985 Specification and measuring method of frequency-modulated voice-frequency telegraph set for a modulation rate of 75 Bauds with channels spaced at 180 Hz 260.0 via email in 1~3 business day abolished2005-10-14 ,,1986-7-1
HB 6096-1986 SZ-01 Digital Information Transmission System 1665.0 via email in 1~10 business day valid,,1987-1-1
YD 284-1982 Technical specification of 2048 kbit/s regenerative repeater 240.0 via email in 1~3 business day superseded,1995-9-1,1983-1-1
YD 285-1982 Technical specification for 2048kbit/s line terminal equipment 240.0 via email in 1~3 business day valid,,1983-1-1
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GB 2095-1980 Electromechanical components for telephone switching system--Graphical symbols for operation sequence diagram 
  Issued on:   Price(USD): 180.0
GB 3267-1982 The specification and test methods for conference telephone tandem board 
  Issued on: 1982-07-02   Price(USD): 340.0
GB 3268-1982 The specification and test methods for conference telephone SET 
  Issued on: 1982-07-02   Price(USD): 180.0
GB 5322-1985 Technical requirements and testing methods for crossbar private automatic branch exchange 
  Issued on: 1985-08-24   Price(USD): 105.0
GB 6878-1986 Technical requirements and testing methods for local crossbar telephone switching systems 
  Issued on: 1986-09-12   Price(USD): 180.0
GB 6879-1986 Specifications of 30 channels pulse code modulation multiplex equipment at 2048 kbit/s 
  Issued on:   Price(USD): 1304.0
GB 6880-1986 Measuring methods of 30 channels pulse code modulation multiplex equipment at 2048 kbit/s 
  Issued on:   Price(USD): 250.0
GB/T 13994-1992 requirements for a 60 - Channel PCM/ADPCM transcoder equipment 
  Issued on: 1992-1-2   Price(USD): 600.0
GB/T 13995-1992 requirements for TDM/FDM 60 - Channel transmultiplexing equipment 
  Issued on: 1992-1-2   Price(USD): 370.0
GB/T 14130-1993 requirements for digital sections of metallic cables used in telecommunication network 
  Issued on: 1993-2-4   Price(USD): 150.0
GB/T 14131-1993 requirements for digital line systems on coaxial pair cables used in telecommunication network 
  Issued on: 1993-2-4   Price(USD): 100.0
GB/T 14132-1993 requirements for digital line systems on symmetric pair cables used in telecommunication network 
  Issued on: 1993-2-4   Price(USD): 120.0
GB/T 1492-1979 Method of test for telephones 
  Issued on: 1979-02-01   Price(USD): 220.0
GB/T 1493-1979 Technical requirements for common battery telephones and automatic telephones 
  Issued on: 1979-02-17   Price(USD): 300.0
GB/T 1494-1979 Technical requirements for magnet/telephone 
  Issued on: 1979-02-17   Price(USD): 260.0
GB/T 2094-1980 Toll and local crossbar telephone switching system--Signal marks or colours of lamp and alarm ringer 
  Issued on: 1980-12-09   Price(USD): 180.0
GB/T 5581-1985 Specification and measuring method of frequency-modulated voice-frequency telegraph set for a modulation rate of 75 Bauds with channels spaced at 180 Hz 
  Issued on: 1985-01-01   Price(USD): 260.0
HB 6096-1986 SZ-01 Digital Information Transmission System 
  Issued on: 1986-10-25   Price(USD): 1665.0
YD 284-1982 Technical specification of 2048 kbit/s regenerative repeater 
  Issued on:   Price(USD): 240.0
YD 285-1982 Technical specification for 2048kbit/s line terminal equipment 
  Issued on:   Price(USD): 240.0
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