4端口高速RS-422/485通讯卡
Main Features
- 4个独立的RS-422/485串行端口
- 传输速率可达921.6 Kbps
- 4个串口使用单独或共享的IRQ
- 多个IRQ可供选择:3, 4, 5, 6, 7, 9, 10, 11, 12 或 15
- 支持标准:DOS COM1, COM2, COM3, 和 COM4
PCL-846是一款带有4个RS-422/485串口的通讯卡,每个端口都使用了带有16字节FIFO缓存的16C 550UART芯片,用于高速可靠的串行I/O。UART能够在将数据发送到总线之前将其缓冲处理为16字节的数据包,这样能够明显减轻CPU的负载,避免系统忙或无法及时处理中断时的数据丢失。FIFO缓存功能非常适合Windows下的高速串行I/O。
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communication<br>Interfaces |
CAN |
- |
- |
Current Loop |
- |
- |
RS-232 |
- |
- |
RS-422 |
V |
V |
RS-485 |
V |
V |
Display |
Ports |
4 |
4 |
Network |
Cable Connector Type |
DB9 Male |
DB9 Male |
Protection |
Isolation |
1000 VDC |
1000 VDC |
Surge |
- |
2500 VDC |
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产品描述 |
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PCL-846A-AE |
4-port RS-422/485 ISA COMM Card w/I
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PCL-846B-AE |
4-port RS-422/485 ISA COMM Card w/I&S
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