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研华数据采集卡
PCL-849研华数据采集卡
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  • PCL-849 产品型号
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产品简介
4端口高速RS-232通讯卡
产品介绍
主要特点
  • four independent rs-232 serial ports
  • 4个独立的rs-422/485串行端口
  • transmission speeds up to 921.6 kbps (pcl-849a)
  • 传输速率可达921.6 kbps
  • independent i/o addresses, independent/shared irq settings for each of 4 serial ports
  • 独立i/o地址，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, com4 (pcl-849a/849b/849+)
  • 支持标准dos com1, com2, com3, com4
  • supports surge protection: 3000 vdc (pcl-849b/849+)
  • led indicators on each port indicate data flow
  • onboard interrupt status register for greater throughput
  • complete rs-232 modem-control signals
  • supports windows? 98/2000/xp, linux?
  • powerful and easy-to-use utility (icom tools)
    •  
      内容介绍
    the pcl-849 series cards provide four individually configurable rs-232 serial communication ports. the pcl-849a/849b/849l has a 16c554 uart which makes serial i/o more reliable. the higher performance pcl-849+ has a 16c654 uart. by buffering data into 64-byte packets before putting it on the bus, uarts drastically reduce the cpu load. this makes the pcl-849+ especially suitable for high speed serial i/o applications under multitasking environments. the pcl-849 series cards support two operating modes, standard mode and enhanced mode. in enhanced mode, the address for all four ports can be set automatically. the pcl-849 series cards also support either shared irq or independent irq functions. when an on-board interrupt occurs, the interrupt status register (vector address) indicates which port generated it. the shared interrupt can be set to most common (extended) at interrupts. this simplifies programming, speeds up interrupt processing and frees up interrupts for other devices.

      订购信息
      产品序号档案描述
      pcl-849+/9-a 4-port high speed rs-232 isa comm card w/db9
      pcl-849a/9-a 4-port rs-232 isa comm card w/s&db9
      pcl-849b/9-a 4-port rs-232 isa comm card w/s&db9
      opt4a 30cm male db-37 to 4x male db9 cable
      pcl-849a-a 4-port rs-232 isa comm card w/db25
      pcl-849+-a 4-port high speed rs-232 isa comm card w/db25
      pcl-849b-a 4-port rs-232 isa comm card w/s&db25
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