GY T 200.2-2004 HFC网络数据传输系统技术规范 第2部分射频接口及协议(附编制说明)

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1、GY中华人民共和国广播电影电视行业标准GY/T200.2—2004HFC网络数据传输系统技术规范第2部分：射频接口及协议SpecificationforHFCdatatransmissionsystemPart2:RFinterfaceandprotocol（ITU-TJ.112，TransmissionSystemsforInteractiveCableTelevisionServices，MOD）2004-03-22发布2004-05-01实施国家广播电影电视总局发布GY/T200.2—2004

2、目次前言.................................................................................................II引言................................................................................................III1范围.............................................

3、...................................................12规范性引用文件......................................................................................13术语、定义和缩略语..................................................................................13.1术语和定义....

4、....................................................................................13.2缩略语............................................................................................74通讯协议...............................................................

5、.............................84.1协议栈............................................................................................84.2MAC转发器.......................................................................................114.3网络层...................

6、........................................................................134.4在网络层之上.....................................................................................144.5数据链路层..........................................................................

7、.............144.6物理层...........................................................................................155物理媒介依从子层（PMD）规范........................................................................155.1上行...........................................

8、..................................................165.2下行.............................................................................................296下行传输会聚子层...........................................................................