In the scheme, FSK-FDM technique is used in subcarrier modulation, and the EDFA's supervisory information is transmitted by optical intensity modulation.
该方案利用频移键控频分复用（FSK FDM）技术进行声频副载波调制，通过光强度调制实现远程在线EDFA监控信息随主信号的传输。
The supervisory information system(SIS) and its database platform PI(plant information)real-time database, data flow and point building technology in PI database are introduced.
介绍了厂级监控信息系统（SIS）及其数据库平台PI实时数据库、PI数据库中的数据流程以及PI数据库的建点技术。
This paper discusses a technology of Direct Network Access, and researches a real-time data-importing system based on Direct Network Access for Supervisory Information system (SIS).
本文探讨了直接网络访问技术，并针对电站监控信息系统(SIS)的数据接入问题，提出了一种基于直接网络访问技术的实时数据接入系统方案。
This paper discusses a technology of Direct Network Access, and researches a real-time data-importing system based on Direct Network Access for Supervisory Information system (SIS).
本文探讨了直接网络访问技术，并针对电站监控信息系统(SIS)的数据接入问题，提出了一种基于直接网络访问技术的实时数据接入系统方案。
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