PCL-846-研华数据采集卡-深圳市康新祥有限公司手机版

详细介绍

主要特点

four independent rs-422/485 serial ports

4个独立的rs-422/485串行端口

transmission speeds up to 921.6 kbps

传输速率可达921.6 kbps

independent/shared irq settings between each of the 4 serial ports

4个串口使用单独或共享的irq

wide irq se-lection: 3, 4, 5, 6, 7, 9, 10, 11, 12 or 15

多个irq可供选择：3, 4, 5, 6, 7, 9, 10, 11, 12 或 15

supports standard dos com1, com2, com3, and com4

支持标准：dos com1, com2, com3, 和 com4

provides 1000 vdc isolation

provides 2000 vdc surge protection (pcl-846b only)

space reserved for termination resistors

supports 2 wire or 4 wire operation

supports tx, rx, rts, and cts signals

automatic rs-485 data flow control or rts control

supports windows? 98/2000/xp, linux?

powerful and easy-to-use utility (icom tools)

内容介绍

the pcl-846 series cards provide four independent rs-422/485 serial ports on a card. each port has a 16c550 uart with an on-chip 16-byte fifo buffer for reliable, high-speed serial i/o. the uart buffers data into 16-byte packets before putting it on the bus. this drastically reduces the cpu load and avoids data loss when the system is busy and cannot process the interrupt quickly. the uart is especially useful for high speed serial i/o under windows.

订购信息

产品序号	档案描述

pcl-846b-a	4-port rs-422/485 isa comm card w/i&s

pcl-846a-a	4-port rs-422/485 isa comm card w/i

产品简介

详细介绍