HIRSCHMANN MS20-1600SAAEHC07.1.01以太网交换机
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基板是连接到CEX总线和外部电源的连接器所在的位置。它通过外壳的金属部件接地至DIN导轨。该板还带有外部电源表决二极管和保险丝。电源和逻辑板包含+3.3V转换器、逻辑、用于CEX总线互连的驱动器和用于互连电缆的连接器。在具有两个互连的BC810和主/备份CPU对的完全冗余系统中，BC810支持在线更换CPU底板，而不会干扰CEX流量。如果必须更换BC810，则连接到CEX段的所有通信都将停止。检测到F（故障）/红色电源错误。由硬件控制。在通电期间由硬件设置并清除。R（un）/绿色运行。由硬件控制。EPOK（外部电源正常）/绿色表示外部电源已连接并通电。C1/黄色表示直接连接的CEX段上的流量。C2/黄色表示互连的CEX段上的流量。
The baseplate is where the connectors to CEX-Bus and the external power reside. It is grounded to the DIN-rail through metal parts of the housing. The board also carries the external power voting diode and fuse. The power supply and logic board contains the +3.3 V converter, logic, drivers for CEX-Bus interconnection and the connector for interconnection cable. In a fully redundant system with two interlinked BC810 and primary/backup CPU pair, the BC810 support online replacement of the CPU baseplate without disturbing the CEX traffic. If the BC810 has to be replaced, all traffic to the connected CEX segment are stopped.F(ault) /Red Power supply error detected. Controlled by hardware. Set and cleared by the Hardware during power up. R(un) /Green Operating. Controlled by the Hardware. EPOK(external power OK) /Green Indicates that the external power is connected and powered up. C1 /Yellow Indicates traffic on the directly connected CEXsegment. C2 /Yellow Indicates traffic on the interconnected CEXsegment.
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