产品概述
FT-BC-2003A是一款通用的USB/RS-485/422转换器,内置光电隔离器及DC/DC电源隔离模块。兼容USB、RS-422、RS-485标准,能够将单端的USB信号转换为平衡差分的RS-422或RS-485信号,内置的光电隔离器,
能够提供高达2500Vrms的隔离电压,带有快速的瞬态电压抑制保护器,此保护器被设计用来保护RS-422/RS-485接口,采用当今先进的TVS(TRANSIENT VOLTAGE SUPPERSSOR)瞬态电压抑制器,正常情况下TVS管呈高阻状态,当TVS管两端经受瞬间的高能量冲击时,它能以极高的速度将其两端的阻抗降低,吸收一个大电流,从而把其两端的电压钳制在一个预定的数值上,保护后面的电路元件不因瞬态高压冲击而损坏。此保护器可以有效地抑制闪电(LIGHTNING)和ESD,提供每线600W的雷击、浪涌保护功率,以及各种原因在线路上产生的浪涌电压和瞬态过压,并且小的极间电容保证了RS-422/RS-485接口的高速传输, RS-422、RS-485端通过DB9公头的连接器连接。转换器内部带有零延时自动收发转换, 独有的I/O电路自动控制数据流方向, 而不需任何握手信号(如RTS、DTR等)无需跳线设置实现全双工(RS-422) 、半双 工(RS-485)模式转换,即插即用. 确保适合一切现有的通软件和接口硬件。
FT-BC-2003A光电隔离型接口转换器可以为点到点、点到多点的通信提供可靠的连接,点到多点每个Port口可允许连接128个RS-422或RS-485接口设备,数据通讯速率300-921600bps,带有电源指示灯及数据流量指示灯可指示故障情况、支持的通讯方式有USB到RS-422、USB到RS-485转换。
连接器和信号
尺寸图
注:本产品有全国产化型号可选
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Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
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