Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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Position: Search valid to be valid superseded to be superseded abolished to be abolished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 14130-1993 requirements for digital sections of metallic cables used in telecommunication network $150.00 via email in 1~3 business day abolished
GB/T 14131-1993 requirements for digital line systems on coaxial pair cables used in telecommunication network $100.00 via email in 1~3 business day abolished
GB/T 14132-1993 requirements for digital line systems on symmetric pair cables used in telecommunication network $120.00 via email in 1~3 business day abolished
GB/T 14133-1993 The transmission performance objectives for mixed analogue-digital public telephone automatic switching network $250.00 via email in 1~3 business day abolished
GB/T 14373-1993 Specifications of 46 channels TDM equipment operating on 4 line telephone-type circuit $220.00 via email in 1~3 business day abolished
GB/T 14381-1993 specification for stored program control digital private automatic branch telephone exchange system $1050.00 via email in 1~3 business day valid
GB/T 14398-1993 communication - Arrangements for DTE to DTE physical connection using V.24 and X.24 interchange circuits $120.00 via email in 1~3 business day abolished
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 $400.00 via email in 1~5 business day abolished
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 $220.00 via email in 1~3 business day valid
GB/T 14558-1993 Terminal characteristics for group 4 document facsi-mile apparatus $210.00 via email in 1~3 business day abolished
GB/T 14716-1993 specification for stored program control analogue private automatic branch telephone exchange system $750.00 via email in 1~3 business day valid
GB/T 14731-2008 Synchronous digital hierarchy (SDH) bit rates $80.00 via email in 1~3 business day valid
GB/T 14733.11-1993 Terminology for telecommunications-Telecommnication $690.00 via email in 1~5 business day abolished
GB/T 14733.11-2008 Terminology for telecommunication - Transmission $750.00 via email in 1~5 business day valid
GB/T 14733.4-2012 Terminology for telecommunication switching and signalling in telecommunication $870.00 via email in 1~3 business day valid
GB/T 1493-1979 Technical requirements for common battery telephones and automatic telephones $300.00 via email in 1~3 business day abolished
GB/T 1494-1979 Technical requirements for magnet/telephone $260.00 via email in 1~3 business day abolished
GB/T 15280-1994 Specifications of voice frequency telegraphic interface $180.00 via email in 1~3 business day abolished
GB/T 15409-1994 Frame structure for synchronous digital hierarchy signal $264.00 via email in 1~3 business day abolished
GB/T 15409-2008 Frame structure for synchronous digital hierarchy signal $420.00 via email in 1~5 business day valid
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