2025-12-13 216.73.216.3
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Code of China
Chinese National Standard List: Data communication equipment

GB/T 13129-1991 Specifications for interworking of chinese ideogram teletex on public telecommunication networks-Control procedures 
  Issued on: 1991-8-15   Translation Price(USD): 2160.0
GB/T 13128-1991 Specifications for interworking of chinese ideogram teletex on public telecommunication networks--Character repertoire and coded character sets 
  Issued on: 1991-08-15   Translation Price(USD): 1344.0
DL/T 412-1991 Technical requirements for 600bit/s frequency shift keying (FSK) modem of electric power system 
  Issued on: 1991-12-2   Translation Price(USD): 150.0
GB/T 11052-1989 Specifications of 600 bit/s TDM equipment for telegraph transmission 
  Issued on: 1989-03-31   Translation Price(USD): 260.0
GB/T 13427-1992 Performance requirement of the delta modulation equipment 
  Issued on: 1992-3-10   Translation Price(USD): 420.0
GB/T 13428-1992 Methods of measurement for the delta modulation equipment 
  Issued on: 1992-3-10   Translation Price(USD): 180.0
GB/T 12196-1990 Methods of measurement for pushbutton dialer with pulse 
  Issued on: 1990-02-01   Translation Price(USD): 130.0
GB/T 12198-1990 Methods of measurement for pushbutton dialer with DTMF 
  Issued on: 1990-02-01   Translation Price(USD): 340.0
GB 11324-1989 Performance of the fourth order digital multiplex equipment operating at 139 264kbit/s and using positive justification 
  Issued on:   Translation Price(USD): 180.0
GB 11325-1989 Test methods of the fourth order digital multiplex equipment operating at 139 264kbit/s and using positive justification 
  Issued on:   Translation Price(USD): 300.0
GB/T 11055-1989 Technical requirements and test methods for automatic toll terminal equipment 
  Issued on:   Translation Price(USD): 220.0
GB 10293-1988 Test methods of second order digital multiplex equipm-ent operating at 8448kbit/S and using positive justif-ication 
  Issued on:   Translation Price(USD): 90.0
GB/T 9540-1988 Wideband modem for synchronous data transmission at a data signalling rate higher than 72 kbit/s using 60～108kHz group band circuits 
  Issued on: 1988-06-30   Translation Price(USD): 380.0
GB/T 9541-1988 2400 bits per second duplex modem using the echo cancellation technique standardized for use on the general switched telephone network and on point-to-point 2 wire leased telephone-type 
  Issued on: 1988-6-30   Translation Price(USD): 450.0
GB/T 9412-1988 Modems for data transmission at 48 kilobits per second using 60~108 kHz group band circuits 
  Issued on: 1988-6-23   Translation Price(USD): 100.0
GB/T 9413-1988 Methods of measurement of midems for wide band using 60~108 kHz group band circuits 
  Issued on: 1988-6-23   Translation Price(USD): 160.0
GB 9036.1-1988 General technical requirements and test methods for manual toll telephone switching equipment 
  Issued on:   Translation Price(USD): 130.0
GB 9036.5-1988 Technical requirements and test methods for monitordesks in manual toll telephone switching equipments 
  Issued on:   Translation Price(USD): 180.0
GB 9036.3-1988 Technical requirements and test methods for toll service boards (toll recording boards, enquiry deaks)in manual toll telephone switching equipments 
  Issued on:   Translation Price(USD): 220.0
GB 9036.8-1988 Technical requirements and test methods for ringing, power sources, alarm and distribuing frame in manual toll telephone switching equipments 
  Issued on: 1988-04-13   Translation Price(USD): 180.0
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