2023-6-1 3.235.147.50
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Position: Search valid to be valid superseded to be superseded abolished to be abolished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/T 13159-1991 Networking specifications for digital radio-relay sy-stems 250.0 via email in 1~3 business day abolished2009-05-01,2009-5-1,1992-6-1
GB/T 13168-1991 General specification for 8MHz (1800ch) carrier systems on standardized 2.6/9.5mm coaxial cable pairs 120.0 via email in 1~3 business day abolished2017-12-15,,1992-5-1
GB/T 13169-1991 General specification for 4MHz (960ch) carrier systems on standardized 1.2/4.4mm coaxial cable pairs 120.0 via email in 1~3 business day abolished2017-12-15,,1992-5-1
GB/T 13621-1999 series and radio-frequency channel arrangement and equipment main technical specifications for 100~1 000MHz radio relay communication systems 240.0 via email in 1~3 business day valid,,2000-6-1
GB/T 13855-1992 Specification for path transmission automatic measuring equipment 220.0 via email in 1~3 business day abolished2005-10-14,,1993-5-1
GB/T 14731-2008 Synchronous digital hierarchy (SDH) bit rates 80.0 via email in 1~3 business day valid,,2009-4-1
GB/T 14733.11-1993 Terminology for telecommunications－Telecommnication 690.0 via email in 1~8 business day abolished2009-03-01,2009-3-1,1994-8-1
GB/T 15409-2008 Frame structure for synchronous digital hierarchy signal 420.0 via email in 1~5 business day valid,,2009-5-1
GB/T 15837-2008 Interface requirements for digital synchronization network 480.0 via email in 1~5 business day valid,,2009-5-1
GB/T 15940-2008 Basic multiplexing structure for synchronous digital hierarchy signals 240.0 via email in 1~3 business day valid,,2009-4-1
GB/T 16712-2008 Characteristics of synchronous digital hierarchy (SDH) equipment functional blocks 3100.0 via email in 1~10 business day valid,,2009-4-1
GB/T 16813-1997 Technical specifications and test methods of the interface of radio paging system and PSTN 390.0 via email in 1~3 business day valid,,1998-2-1
GB/T 16858-1997 A far end camera control protocol for videoconferences using data link protocol 120.0 via email in 1~3 business day valid,,1998-3-1
GB/T 17114-1997 Requirement for 160kbit/s subscriber line digital multigain equipment joined to national public telecommunication network 250.0 via email in 1~3 business day abolished2005-10-14,,1998-8-1
GB/T 17789-1999 Procedures for simultaneous transmission of data and digitally encoded voice signals over the PSTN or over 2-wire leased point-to-point telephone type circuits 270.0 via email in 1~3 business day valid,,2000-1-1
GB/T 17904.1-1999 ISDN user-network interface data link layer specification and conformance testing method Part 1: User-network interface data link layer specification 1320.0 via email in 1~3 business day valid,,2000-6-1
GB/T 17904.2-1999 ISDN user-network interface data link layer specification and conformance testing method Part 2: Data link layer protocol conformance testing method 2010.0 via email in 1~3 business day valid,,2000-6-1
GB/T 18119-2000 Video coding for low bit rate communication 450.0 via email in 1~3 business day valid,,2000-10-1
GB/T 20185-2006 Optical interface requirements for equipments and systems relating to the synchronous digital hierarchy 240.0 via email in 1~3 business day valid,,2006-10-1
GB/T 21645.10-2017 Technical requirements for automatically switched optical network(ASON)―Part 10:Multi-layer and multi-region control plane 750.0 via email in 1~8 business day valid,,2017-12-1
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GB/T 13159-1991 Networking specifications for digital radio-relay sy-stems 
  Issued on: 1991-09-16   Price(USD): 250.0
GB/T 13168-1991 General specification for 8MHz (1800ch) carrier systems on standardized 2.6/9.5mm coaxial cable pairs 
  Issued on: 1991-9-4   Price(USD): 120.0
GB/T 13169-1991 General specification for 4MHz (960ch) carrier systems on standardized 1.2/4.4mm coaxial cable pairs 
  Issued on: 1991-9-4   Price(USD): 120.0
GB/T 13621-1999 series and radio-frequency channel arrangement and equipment main technical specifications for 100~1 000MHz radio relay communication systems 
  Issued on: 1999-1-1   Price(USD): 240.0
GB/T 13855-1992 Specification for path transmission automatic measuring equipment 
  Issued on: 1992-10-06   Price(USD): 220.0
GB/T 14731-2008 Synchronous digital hierarchy (SDH) bit rates 
  Issued on: 2008-10-07   Price(USD): 80.0
GB/T 14733.11-1993 Terminology for telecommunications－Telecommnication 
  Issued on: 1993-01-02   Price(USD): 690.0
GB/T 15409-2008 Frame structure for synchronous digital hierarchy signal 
  Issued on: 2008-10-29   Price(USD): 420.0
GB/T 15837-2008 Interface requirements for digital synchronization network 
  Issued on: 2008-10-29   Price(USD): 480.0
GB/T 15940-2008 Basic multiplexing structure for synchronous digital hierarchy signals 
  Issued on: 2008-10-07   Price(USD): 240.0
GB/T 16712-2008 Characteristics of synchronous digital hierarchy (SDH) equipment functional blocks 
  Issued on: 2008-10-07   Price(USD): 3100.0
GB/T 16813-1997 Technical specifications and test methods of the interface of radio paging system and PSTN 
  Issued on: 1997-5-28   Price(USD): 390.0
GB/T 16858-1997 A far end camera control protocol for videoconferences using data link protocol 
  Issued on: 1997-06-21   Price(USD): 120.0
GB/T 17114-1997 Requirement for 160kbit/s subscriber line digital multigain equipment joined to national public telecommunication network 
  Issued on: 1997-01-01   Price(USD): 250.0
GB/T 17789-1999 Procedures for simultaneous transmission of data and digitally encoded voice signals over the PSTN or over 2-wire leased point-to-point telephone type circuits 
  Issued on: 1999-07-01   Price(USD): 270.0
GB/T 17904.1-1999 ISDN user-network interface data link layer specification and conformance testing method Part 1: User-network interface data link layer specification 
  Issued on: 1999-11-11   Price(USD): 1320.0
GB/T 17904.2-1999 ISDN user-network interface data link layer specification and conformance testing method Part 2: Data link layer protocol conformance testing method 
  Issued on: 1999-11-11   Price(USD): 2010.0
GB/T 18119-2000 Video coding for low bit rate communication 
  Issued on: 2000-6-7   Price(USD): 450.0
GB/T 20185-2006 Optical interface requirements for equipments and systems relating to the synchronous digital hierarchy 
  Issued on: 2006-04-05   Price(USD): 240.0
GB/T 21645.10-2017 Technical requirements for automatically switched optical network(ASON)―Part 10:Multi-layer and multi-region control plane 
  Issued on: 2017-05-12   Price(USD): 750.0
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