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研华EKI-2725I：
EKI-2725 支持千兆以太网。电源采用 12 ~ 48 VDC 冗余输入设计，并通过双重保护机制进行保护：电源极性反接保护和过载电流可复位保险丝。前者可容忍反向电源接线，而后者可保护系统免受过载电流的影响。随着电源恢复正常，EKI-2725 将自动恢复正常工作状态。EKI-2725 的每个端口都有 2 个 LED 来显示链路状态传输速度和冲突状态。它还为事件警报提供继电器输出。如果发生电源故障，内置 LED 将激活警报以通知管理员。工程师可以通过检查 LED 来简单地验证硬件状态，并轻松快速地进行故障排除。
研华EKI-2725I特点：
1.提供 5 个带有 Auto MDI/MDI-X 的千兆以太网端口
2.支持 10/100/1000 Mbps 自动协商
3.支持高达 9kbytes 的巨型帧传输
4.提供超薄尺寸、带有 IP30 金属机制的 DIN 导轨
5.支持冗余 12 ~ 48 VDC 电源输入和 P-Fail Relay
6.工作温度：-40~75℃
规格书：
研华EKI-2725I
