BC810主要由底板(TP857)和电源/逻辑板两部分组成。底板是CEX-Bus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到din -导轨上。该板还携带外部电源投票二极管和保险丝。电源和逻辑板包括+3.3 V转换器、逻辑板、CEX-Bus互连驱动和互连电缆连接器。

BC810可与PM857、PM861A、PM862、PM863、PM864A、PM865、PM866、PM866A、PM867和PM891配套使用。

在两台BC810和主备CPU对联动的全冗余系统中，BC810支持在线更换CPU底板，不会影响CEX流量。如果需要更换BC810，所连接的CEX网段的流量将全部停止。

cex总线用于扩展带有通信接口单元的板载通信端口。也可以在cex总线上使用冗余通信接口。cex总线互连单元BC810用于将cex总线划分为不同的段，以提高其可用性。这提高了具有冗余通信接口的系统的可用性。

特点和优点
•支持冗余通信接口单元。
•支持在线更换CPU。
•外部供电。
•支持热插拔

The BC810 unit consists of two basic parts: baseplate (TP857) and power supply/logic board. 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 contain the +3.3 V converter, logic, drivers for CEX-Bus interconnection, and the connector for the interconnection cable.

The BC810 can be used with PM857, PM861A, PM862, PM863, PM864A, PM865, PM866, PM866A, PM867 and PM891.

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 is stopped.

The CEX-Bus is used for extending the onboard communication ports with communication interface units. It is also possible to use redundant communication interfaces on the CEX-Bus. The CEX-Bus Interconnection unit BC810 is used to increase the availability of the CEX-Bus by dividing it into separate segments. This improves the availability of systems with redundant communication interfaces.