支持2个10/100 Mbps 自适应以太网端口 整合Modbus TCP 和 Modbus RTU/ASCII网络 支持最大921.6Kbps范围内的任意波特率设定 同时最多支持16个连接和32个请求 支持在配置工具中自动搜索从设备的ID 软件选择RS-232/422/485通讯 支持DIN导轨安装或壁挂安装 内建15KV静电放电（ESD）信号保护 RS-485自动数据流控制 支持 D.C. 电源端口突波保护，线对线 2 KV，线对地 4 KV；讯号端口 4 KV 支持隔离和宽工作温度

完全符合USB v1.1和v2.0规范 支持RS-232端口 传输速度可达921.6 kbps 无需外接电源，USB端口电源驱动 即插即用装置 无需额外的IRQ或I/O端口 支持热交换功能

完全符合USB v1.1和v2.0规范 支持RS-232/422/485端口 传输速度可达921.6 kbps 自动RS-485数据流控制 无需外接电源，USB端口电源驱动 即插即用装置 无需额外的IRQ或I/O端口 支持热交换功能

16 x Gigabit Ethernet ports + 4 x SFP ports SFP socket for easy and flexible fiber expansion NEMA TS2 for traffic control EN50121-4 approval for railway trackside deployment Wide operating temperature range of -40 ~ 75°C (EKI-2720G-4FI) Dual 12 ~ 48 VDC power input and 1 x relay output

Dual 48 VDC power input and 1 x relay output -40 ~ 75°C wide-range operating temperature EN50121-4 approval for railway trackside deployment NEMA TS2 for traffic control SFP socket for easy and flexible fiber expansion 8 x IEEE 802.3 af/at PoE Gigabit ports + 4 x SFP ports

Provides flexible mounting: DIN-rail and Wall mount Provides redundant 12 ~ 48 VDC power input Provides broadcast storm protection Supports MDI/MDI-X auto crossover Supports full/half duplex flow control rovides 1 x 100 Mbps Multi-mode ST type fiber optic port Provides 4 x 10/100 Mbps Ethernet ports with RJ45 connector

Provides 8-port Fast Ethernet ports with Auto MDI/MDI-X Supports 10/100 Mbps Auto-Negotiation Provides broadcast storm protection Provides compact size with DIN-rail/Wall mount, and IP30 metal mechanism Supports redundant 12 ~ 48 VDC power input and P-Fail relay EKI-2528DI supports wide operating temperatures from -40 to 75°C DNV certificate

提供4个10/100Mbps以太网端口，带有RJ-45连接器 提供1个100Mbps多模SC型光纤端口 支持全双工/半双工流量控制 支持MDI/MDI-X自动跨接 提供广播风暴保护 提供冗余12~48VDC电源输入 提供灵活的安装方式：DIN导轨安装，面板式安装

提供5个自适应快速以太网口 支持10/100 Mbps 自适应 结构紧凑，支持 导轨安装/壁挂式安装, IP40等级金属外壳 支持12 ~ 48 VDC 冗余电源输入加一个直流电源插口和继电器报警 宽工作温度 -40 to 75 °C

Provides 4 x 10/100 Mbps Ethernet ports with RJ45 connector Provides 1 x 100 Mbps Multi-mode SC type fiber optic port (EKI-2525M) Provides 1 x 100 Mbps Single-mode SC type fiber optic port (EKI-2525S) Supports full/half duplex flow control Supports MDI/MDI-X auto crossove Provides broadcast storm protection Provides redundant 12 ~ 48 VDC power input Provides flexible mounting: DIN-rail and Wall mount