USB转RS-485/422转换头 USB V2.0(FT-BC-885)

产品概述
FT-BC-885是一款通用的USB/RS-485/422转换器,无需外加电源,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,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,并且极小的极间电容保证了RS-422/RS-485接口的高速传输, RS-422、RS-485端通过接线端子的连接。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-22) 、半双 工(RS-485)模式转换,即插即用。确保适合一切现有的通信软件和接口硬件。
FT-BC-885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,点到多点每台转换器可允许连接32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

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注:本产品有全国产化型号可选

Important Notice

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.

The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.

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