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一、系统配置和设计1.有人增音段的配置单管同轴(N+N)载波系统主要应用在单管同轴电缆上,但也可以应用在非单管同轴电缆和对称电缆上,关于这种载波系统在非单管同轴电缆上的应用问题,今后还需要作进一步研究。目前的单管360路载波系统主要是应用在邮电部第五研究所已研制成功并于1980年6月已通过鉴定的HOYL_(11)2.6/9.7铝外导体单管中同轴电缆上(包括为适应电缆在现有杆路架空应用必须加铠装;以及根据使用单位要求,需要加铠装和信号线的这种铝外导体单管电缆)。所以有人增音段的配置也以这种电缆为基础,作以下一些考虑:(1)无人增音段最长距离为10公里。
First, the system configuration and design 1. Some people increase the segment configuration Single-pipe coaxial (N + N) carrier system is mainly used in single-tube coaxial cable, but can also be used in non-single-tube coaxial cable and symmetrical cable , On the carrier system in the application of non-single-coax problems, the future needs further study. The current single-tube 360-channel carrier system is mainly used in the fifth Institute of the Ministry of Posts and Telecommunications has been successfully developed and in June 1980 has been identified HOYL_ (11) 2.6 / 9.7 aluminum outer conductor single coaxial cable (including In order to adapt to the cable in the existing pole overhead applications must be armored; and according to the requirements of the use of units, need to add armored and signal lines such aluminum single conductor cable). Therefore, some people increase the configuration of the cable is also based on this cable, for the following considerations: (1) no increase by paragraph maximum distance of 10 km.