MIL-STD-1553B also introduced the concept of optional broadcast transfers, in which data is sent to all RTs that implement the option, but to which no RTs respond, as this would cause conflicts on the bus.
MIL-STD-1553B还引入了可选的广播传输的概念，其中数据會发送到实现该选项的所有远程终端，但是没有远程终端响应，因为这将导致总线上的冲突。