IEC 60728-1-2007
电视信号、声音信号和交互式设备用电缆网络.第1部分:正向传输路径的系统性能
Cable networks for television signals, sound signals and interactive services - Part 1: System performance of forward paths
IEC 60728-1-2007 发布历史
This part of IEC 60728 is applicable to any cable network(including individual receiving systems)having in the forward path a coaxial cable output and primarily intended for television and sound signals operating between about 30 MHz and 3 000 MHz． This standard specifies the basic methods of measurement of the operational characteristics of cable network having coaxial cable outputs in order to assess lhe performance of these systems and their performance limits． AIl requirements refer to the performance limits，which shall be obtained between the input(s) to the headend or headends and any system outlet when terminated in a resistance equal to the nominal load impedance of fhe system．unless otherwise specified．Where system outlets are not used，the above applies at the subscriber's end of the subscriber's feeder．Also the requirements which are obtained between the input(s) to the headend or headends and any home network interface(HNI)are given． NOTE 1 Methods of measurement described in this standard are considered as basic．However，any equivalent method that ensures at least the same accuracy may be used． NOTE 2 If the system operator wishes to subdivide the system into a number of parts or wishes to use different transmission media(for example，coaxial cabling，balanced cabling．optical cabling)，the accumulation of aegraaations should not exceed the fIgures given in this standard． NOTE 3 System performance requirements of return paths as well as specific methods of measurement for the use of the return paths in cable networks are described in IEC 60728—10． Clause 5 defines the system performance limits which will，with an unimpaired input， (headend input signal)，produce picture and sound signals(at system outlets)where the impairment to any single parameter wiII be not worse．in normaI operating conditions for any analogue channeI，than Grade four on the five—grade impairment scale contained in ITU-BT 500-10．For digitally modulated signals．the quality requirement is a quasi-error-free(QEF) reception． Appropriate performance requirements for the signals at the receiving antennas site are giyen in Clause 6 in order to provide at the input of the headend of the cable network both analogue and digital television signals with suitable quality． 一 Clause 7 is applicable to home networks(including those of individual receiving systems) using coaxial cables，balanced cables or optical cables and primarily intended for television signals，sound signals and interactive services，operating between about 30 MHz and 3 000 MHz． This clause，considering the basic operational characteristics of a home network，specifies the requirements which shall be obtained at the home network interface(HNI)taking into account the performance requirements given at the system outlet or at the terminal input．
IEC 60728-1-2007由国际电工委员会 IX-IEC 发布于 2007-09。
IEC 60728-1-2007 在中国标准分类中归属于: M60 广播、电视网综合，在国际标准分类中归属于: 33.060.40 电缆分配系统。
IEC 60728-1-2007的历代版本如下：
- 2010年01月 IEC 60728-1-1-2010 电视信号、声音信号和交互式服务用电缆网络.第1-1部分:双向家用网络用射频(RF)电缆
- 2014年03月 IEC 60728-1-1-2014 电视信号, 声音信号和交互服务用电缆网络. 第1-1部分: 双向家庭网络用射频电缆
- 1986年 IEC 60728-1-1986 电缆配线系统.第1部分:主要供在30MHz-1GHz间运行的声音和电视信号用的系统
- 2014年03月 IEC 60728-1-2-2014 电视信号, 声音信号和交互服务用电缆网络. 第1-2部分: 操作中系统出口处传输信号的性能要求(TA 5)
- 2001年11月 IEC 60728-1-2001 电视和声音信号电缆分配系统 第1部分：测量方法和系统性能
- 2007年09月 IEC 60728-1-2007 电视信号、声音信号和交互式设备用电缆网络.第1部分:正向传输路径的系统性能
- 2014年05月01日 IEC 60728-1-2014 电视信号、声音信号和交互式设备用电缆网络.第1部分:正向传输路径的系统性能
- 标准号
- IEC 60728-1-2007
- 发布日期
- 2007年09月
- 实施日期
- 废止日期
- 无
- 中国标准分类号
- M60
- 国际标准分类号
- 33.060.40
- 发布单位
- IX-IEC
- 代替标准
- IEC 60728-1-2014
- 适用范围
- This part of IEC 60728 is applicable to any cable network(including individual receiving systems)having in the forward path a coaxial cable output and primarily intended for television and sound signals operating between about 30 MHz and 3 000 MHz． This standard specifies the basic methods of measurement of the operational characteristics of cable network having coaxial cable outputs in order to assess lhe performance of these systems and their performance limits． AIl requirements refer to the performance limits，which shall be obtained between the input(s) to the headend or headends and any system outlet when terminated in a resistance equal to the nominal load impedance of fhe system．unless otherwise specified．Where system outlets are not used，the above applies at the subscriber's end of the subscriber's feeder．Also the requirements which are obtained between the input(s) to the headend or headends and any home network interface(HNI)are given． NOTE 1 Methods of measurement described in this standard are considered as basic．However，any equivalent method that ensures at least the same accuracy may be used． NOTE 2 If the system operator wishes to subdivide the system into a number of parts or wishes to use different transmission media(for example，coaxial cabling，balanced cabling．optical cabling)，the accumulation of aegraaations should not exceed the fIgures given in this standard． NOTE 3 System performance requirements of return paths as well as specific methods of measurement for the use of the return paths in cable networks are described in IEC 60728—10． Clause 5 defines the system performance limits which will，with an unimpaired input， (headend input signal)，produce picture and sound signals(at system outlets)where the impairment to any single parameter wiII be not worse．in normaI operating conditions for any analogue channeI，than Grade four on the five—grade impairment scale contained in ITU-BT 500-10．For digitally modulated signals．the quality requirement is a quasi-error-free(QEF) reception． Appropriate performance requirements for the signals at the receiving antennas site are giyen in Clause 6 in order to provide at the input of the headend of the cable network both analogue and digital television signals with suitable quality． 一 Clause 7 is applicable to home networks(including those of individual receiving systems) using coaxial cables，balanced cables or optical cables and primarily intended for television signals，sound signals and interactive services，operating between about 30 MHz and 3 000 MHz． This clause，considering the basic operational characteristics of a home network，specifies the requirements which shall be obtained at the home network interface(HNI)taking into account the performance requirements given at the system outlet or at the terminal input．