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提出用８２７３代替８２５０进行串行异步数据传输，重点解决传统串行异步通信速度慢、效率低的不足，大大提高现场总线的利用率，也使得这类ＲＳ－４８５总线形式的通信模式得以实现远距、重载、高速信息传送。
Propose to use 8273 instead of 8250 serial asynchronous data transmission, focusing on the traditional serial asynchronous communication slow, low efficiency, greatly improve the utilization of the field bus, but also makes such a RS-485 bus communication mode to achieve far Distance, overloaded, high-speed information transmission.