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产品介绍： |
产品简介：
PRA-7146是一款4端口串行通信接口卡。该卡的主要特点是每个端口都可以通过卡上的跳线单独设为RS-232，RS-422，RS-485。PRA-746+使用了16C550 UART，增强了中断处理的能力，在115.2Kbps的传输速率下仍可安全可靠的工作。
Product Introduction: The PRA-7146 is a four-port serial communication interface card. The main feature of this card is that each port can be configured individually to either RS-232, RS-422, or RS-485 using on-board jumpers. The card uses 16C550 UARTs and improved interrupt handling for reliable operation at transmission speeds of up to 115.2 Kbps.
| 性能特点： |
◆ RS-485模式下自动数据流控制
◆ 4个独立的RS-232/422/485串行端口
◆ 中断(跳线选择)3,4,5,6,7,9,10,11,12或15
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