Compared with the conventional centralized control system,it has the following characteristics:
1,to achieve decentralized control.It makes the system control risk dispersed,high reliability,reduced investment and easy maintenance.
2.Realize centralized monitoring,operation and management.Separating management from site,making management more integrated and systematic,
3.The use of network communication technology,which is the key technology of DCS,makes control and management real-time,and solves the problem of system expansion and upgrade.
与常规的集中式控制系统相比有如下特点：
1、实现了分散控制。它使得系统控制危险性分散、可靠性高、投资减小、维护方便。
2、实现集中监视、操作和管理。使得管理与现场分离，管理更能综合化和系统化，
3、采用网络通信技术，这是DCS的关键技术，它使得控制与管理都具实时性，并解决系统的扩充与升级问题。
HP/Agilent 83711-60107 A10 ALC Board Assembly
HP/Agilent 8901B Modulation Analyzer
HP/Agilent 5086-7678 Dual Directional Coupler
HP/Agilent 5086-7651 Single Directional Coupler 75ohm
HP/Agilent 83402A Lightwave Source, 1300 nm, 6 GHz
HP/Agilent E4401-60023 Tracking Generator Assembly
