The Industrial Automation Group of Advantech has launched a new range of eight port serial communication cards that use the PCI Express interface, giving it a faster data transfer rate than standard PCI cards, and comes with direct memory access (DMA) and surge and EFT protection.
使用DMA，卡通过允许处理器在数据传输正在进行中继续其任务来减少CPU负载，使整个系统更有效。卡的串行输入速度高达921.6kbps，支持任何波特率，可以由用户手动配置，以满足自己的需求。带RS-485的卡也为增强的数据传输提供自动方向控制。
All of these features ensure that these PCI Express cards give users greater confidence for use in their industrial applications.
提起：工厂自动化那电脑板
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