产品简介
双端口高速RS-232/485接口卡 含2500 VDC浪涌保护和3000 VDC隔离保护
产品介绍
| 主要特点 two independent rs-422/485 serial ports 2个独立的rs-422/rs-485串行接口 provides 3000 vdc isolation 提供2500 vdc浪涌保护 provides 2500 vdc surge protection 提供3000 vdc隔离保护 16c550 uarts with on-chip 16-byte fifo 带16字节fifo的16c550 uart transmission speeds up to 921.6 kbps 传输速率可达921.6 kbps i/o address and interrupt se-lectable wide irq se-lection: 3, 4, 5, 6, 7, 9, 10, 11, 12 or 15 supports 2 wire or 4 wire operation supports tx, rx, rts, and cts signals automatic rs-485 data flow control or rts control termination resistors jumper enable/disable supports standard dos com1, com2, com3, and com4 supports windows? 98/2000/xp, linux? powerful and easy-to-use utility (icom tools) |
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 | | 内容介绍 | |
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| the pcl-745 series card provides two rs-422/485 serial ports.each port utilizes a 16c550 uart with an on-chip 16-byte fifo buffer for reliable, high-speed serial i/o. the uart buffer divides data into 16-byte packets before sending them onto the bus. this drastically reduces the cpu load and avoids data loss due to failure to respond to the interrupt request in time. the uart is especially useful for high speed serial i/o under windows. the pcl-745s card differs from the pcl-743s card in that the former uses on-board optical isolators to protect your pc and equipment against damages from ground loops, increasing system reliability in harsh environments. to further increase reliability, the pcl-745s offers surge protection technology, protecting your system from abrupt high voltage surges (up to 2500 v) such as those caused by lightning. |
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| | 订购信息 | |
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| 产品序号 | 档案描述 | | | pcl-745s-b | 2-port rs-422/485 isa comm card w/s&i |
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具体成交价以合同协议为准
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