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  •  China "YD" Standards List:
    • Standard  Code Standard English Title Standard Class Order
    DL/T 1066-2007 Guide of maintenance management for hydropower station equipment

    China Electricity & Power - YD Standards
    DL/T 1047-2007 Hydranlic overflow settlement gauge

    China Electricity & Power - YD Standards
    YD/T 944-2007 Technical Specification and Testing Methods for Surge Protection of Power Supply for Communications

    China Telecommunication - YD Standards
    YD/T 502-2007 Diesel Generator Sets for Telecommunications

    China Telecommunication - YD Standards
    YD/T 1668-2007 Technical Specification for STM-64 optical fiber line system

    China Telecommunication - YD Standards
    YD/T 1667-2007 Communication Cable. Foamed Polyethylene Dielectric, Smooth Copper-tube or Aluminum-tube Outer Conductor, 50 Ohm Radio Frequency Coaxial Cable for Wireless Communication

    China Telecommunication - YD Standards
    YD/T 1666-2007 Technical Specification for Long Distance Remote Visual Surveillance System Security

    China Telecommunication - YD Standards
    YD/T 1665-2007 Technical Specification for DSL Network Management Interface

    China Telecommunication - YD Standards
    YD/T 1664-2007 Technical Specification for Ethernet Passive Optical Network (EPON) Management Interface

    China Telecommunication - YD Standards
    YD/T 1663-2007 Testing Methods for Bearer Independent Call Control

    China Telecommunication - YD Standards
    YD/T 1662-2007 Testing Methods for National No.7 Signalling System. GSM Mobile Telephone User Part (MTUP)

    China Telecommunication - YD Standards
    YD/T 1661-2007 Technical Specification for based on Open Service Access Parlay X Web Service

    China Telecommunication - YD Standards
    YD/T 1660-2007 Technical Specification and Testing Methods for NT1+ Plus Equipment

    China Telecommunication - YD Standards
    YD/T 1659-2007 Testing Methods of Security for Broadband Network Access Server

    China Telecommunication - YD Standards
    YD/T 1658-2007 Technical Specification for Broadband Network Access Server Security

    China Telecommunication - YD Standards
    YD/T 1657.4-2007 Technical Specification for the Proxy Supporting Network Address Translation/Firewall Traverse of Multimedia Services. Part 4: H.248 Proxy

    China Telecommunication - YD Standards
    YD/T 1657.3-2007 Technical Specification for the Proxy Supporting Network Address Translation/Firewall Traverse of Multimedia Services. Part 3: MGCP Proxy

    China Telecommunication - YD Standards
    YD/T 1657.2-2007 Technical Specification for the Proxy Supporting Network Address Translation/Firewall Traverse of Multimedia Services. Part 2: SIP Proxy

    China Telecommunication - YD Standards
    YD/T 1657.1-2007 Technical Specification for the Proxy Supporting Network Address Translation/Firewall Traverse of Multimedia Services. Part 1: H.323 Proxy

    China Telecommunication - YD Standards
    YD/T 1656-2007 Technical Requirement for Interconnection of IPv4 Network over IPv6 Backbone (4 over 6)Via Border Gateway Protocol Multi-Protocol Extensions (BGP-MP)

    China Telecommunication - YD Standards
    YD/T 1655-2007 Technical Specification for IPTV-STB

    China Telecommunication - YD Standards
    YD/T 1654-2007 Service Specification for IPTV

    China Telecommunication - YD Standards
    YD/T 1653-2007 General Technical Specification for Streaming Media over IP-based Network

    China Telecommunication - YD Standards
    YD/T 1652-2007 Testing Methods for IP User Service Gateway

    China Telecommunication - YD Standards
    YD/T 1651-2007 Technical Specification for IP User Service Gateway

    China Telecommunication - YD Standards
    YD/T 1650-2007 Technical Specification for the Non-realtime Transportation of IP Fax Data

    China Telecommunication - YD Standards
    YD/T 1649-2007 Testing Methods for Push to Talk Server over Cellular

    China Telecommunication - YD Standards
    YD/T 1648-2007 Technical Requirements for Push to Talk Server over Cellular

    China Telecommunication - YD Standards
    YD/T 1647-2007 Testing Mothods for Push to Talk Termination over Cellular

    China Telecommunication - YD Standards
    YD/T 1646-2007 Technical Specification for Push to Talk Termination over Cellular

    China Telecommunication - YD Standards

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