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Standard No. Title Price(USD) Delivery Status Add To Cart
GB/T 15941-2008 Requirements for Synchronous Digital hierarchy (SDH) Optical Fiber Cable Line Systems 780 (USD) via email in 1-8 business day VALID
YD/T 1904-2009 Test Specification for Anti-Spam Email Equipment via email in VALID please email coc@codeofchina.com for quotation
GB/T 12171-1990 Specification for TDM/FDM60-channel transmultiplexing equipments used in the telecommunication network 495 (USD) via email in 1-5 business day
GB/T 15838-1995 Measuring methods for the performances of switching equipment clocks in digital synchronous network via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
SJ/T 11316-2005 Home network system architecture and reference model 165 (USD) via email in 1-3 business day VALID
GB/T 6879-1995 Performance and test methods of the 30 channels pulse code modulation multiplex equipment at 2048 kbit/s via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YD/T 1138-2006 Electromagnetic Compatibility Requirement and Measurement Methods for Fixed Radio Links and Ancillary Equipment 330 (USD) via email in 1-3 business day ABOLISHED
YD/T 1639-2007 Security Specification and Testing Methods for the Short Message Centre Equipments and Short Message Gateway Equipments via email in VALID please email coc@codeofchina.com for quotation
YD/T 1141-2007 Testing Specification for Giga Bit Ethernet LAN Switch via email in VALID please email coc@codeofchina.com for quotation
GB/T 21643-2008 IP Authentication Header 135 (USD) via email in 1-3 business day VALID
SJ 20967-2007 Subsystem interoperability of the digital message transfer device via email in VALID please email coc@codeofchina.com for quotation
GB/T 16521-1996 General arrangements for interworking between packet switched public data networks (PSPDN) and circuit switched public data networks (CSPDN) for the provision of data transmission services 120 (USD) via email in 1 business day ABOLISHED
YD/T 1939.2-2009 Technical Requirements for Parlay API Mapping Part 2:Parlay API to Mobile Application Part (MAP) and CAMEL Application Part (CAP) for 900/1800 MHz TDMA Digital Cellular Mobile Telecommunication Network Mapping via email in VALID please email coc@codeofchina.com for quotation
GB/T 14133-1993 The transmission performance objectives for mixed analogue-digital public telephone automatic switching network via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YD/T 1455-2006 IPv6 Network Equipment Testing Methods for Core Router Supporting IPv6 2115 (USD) via email in 1-10 business day ABOLISHED
GB/T 11591-1999 Packet assembly/disassembly facility (PAD)in a public data network 300 (USD) via email in 1 business day SUPERSEDED
YD/T 1387.1-2005 Testing methods of IP trunk media gateway 1755 (USD) via email in 1-10 business day VALID
SJ 20968-2007 General specification for military sonar data-recording equipment via email in VALID please email coc@codeofchina.com for quotation
YD/T 1823-2008 General Techincal Requirements for IPTV Service System 420 (USD) via email in 1-3 business day VALID
GB/T 13127-1991 Specifications for interworking of chinese ideogram teletex on public telecommunication networks-The terminal equipment 255 (USD) via email in 1-3 business day
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