译：GB/T 15940-1995 Basic multiplexing structure for synchronous digital hierarchy signals

译：GB/T 6879-1995 Performance and test methods of the 30 channels pulse code modulation multiplex equipment at 2048 kbit/s

译：GB/T 7609-1995 General test method for transmission performance of PCM voice channel in telecommunication network

译：GB/T 15838-1995 Measuring methods for the performances of switching equipment clocks in digital synchronous network

译：GB/T 15837-1995 Synchronization interface-requirements for digital network

译：GB/T 15698-1995 Information technology—Telecommunications and information exchange between systems—High-level data link control (HDLC)procedures—General purpose XID frame information field content and format

译：GB/T 15629.2-1995 Information processing systems—Local area networks—Part 2:Logical link control

译：GB/T 15629.3-1995 Information processing systems—Local area networks—Part 3:Carrier sense multiple access with collision detection(CSMA/CD)—access method and physical layer specifications

译：GB/T 11324-1995 Performance and test methods of the fourth order digital multiplex equipment operating at 139264 kbit/s and using positive justification

译：GB/T 7254-1995 Performance and test methods of the second order digital multiplex equipment operating at 8448 kbit/s and using positive justification

译：GB/T 14400-1993 Information processing systems—Data communication—High-level data link control balanced classes of procedures—Data-link layer address resolution/negotiation in switched environments

译：GB/T 14399-1993 Information processing systems—Data communication—High-level data link control procedures—Description of the X.25 LAPB-compatible DTE data link procedures

译：GB/T 14398-1993 Data communication—Arrangements for DTE to DTE physical connection using V.24 and X.24 interchange circuits

译：GB/T 14130-1993 Performance requirements for digital sections of metallic cables used in telecommunication network

译：GB/T 14133-1993 The transmission performance objectives for mixed analogue-digital public telephone automatic switching network

译：GB/T 14132-1993 Performance requirements for digital line systems on symmetric pair cables used in telecommunication network

译：GB/T 14131-1993 Performance requirements for digital line systems on coaxial pair cables used in telecommunication network

译：GB/T 13994-1992 Technical requirements for a 60-channel PCM/ADPCM transcoder equipment

译：GB/T 13995-1992 Technical requirements for TDM/FDM 60-channel transmultiplexing equipment

译：GB/T 13503-1992 Generic specification for digital microwave radio relay communication equipment