Model485P 采用双端供电技术实现光隔，其RS-232 端采用串口取电技术(从TXD、RTS、DTR 信号获取电源)，RS-485/422 端采用独立外供电技术（9V 供电），通信信号采用高速光耦隔离，从而保证光隔和传输性能的完美结合。
实现2500V 光隔，1500W 接口防雷保护，确保设备接口不受浪涌及地电流的影响，通信距离长达1800 米，广泛用于考勤、门禁、云台控制、售饭和停车场等室内外系统中。
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.
