Csb-21a embodies its advantage by passing rich information through network, such as the records of exact time order of each exit and each switch parameter.

• 作为CSC-2000综合自动化系统的配套装置，CSB-21A可以通过网络报送丰富的信息，诸如每个出口的准确时间顺序记录、各开关量变化的准确时间顺序记录等，充分体现了装置的优越性。