A-B 罗克韦尔（Allen-Bradley，现在是 Rockwell Automation 的一部分）的 1756-EN2TXT 工业交换机是一款高性能的网络设备，专为工业自动化系统设计。以下是该工业交换机的一些关键特性：

品牌与制造商：Allen-Bradley，属于 Rockwell Automation。

型号：1756-EN2TXT，这是一款通信模块，具体型号可能指的是一个以太网通信模块，用于 PLC 等自动化控制系统。

通信协议支持：支持以太网/IP 通信协议，确保数据在工业自动化系统中高效传输。

端口配置：配备 RJ45 端口，用于连接或实施冗余以太网网络，提高数据传输的稳定性和可靠性。

传输速度：支持 10/100 Mbps 的传输速度，确保数据能够迅速传输。

电源及保护：具有双电源冗余输入，具有电压隔离和反接保护功能，适应恶劣的工业环境。

告警输出：具有继电器告警输出功能，提供及时的故障信息。

尺寸与防护等级：具有特定的外形尺寸和 IP 防护等级，适应粉尘和潮湿环境。

环境适应性：具有 ESD 免疫、EFT/B 免疫、RF 免疫等特性，适应各种工业环境。

安全支持协议：支持 EtherNet/IP 协议，提供安全的数据传输保障。

A-b Rockwell's (Allen-Bradley, now part of Rockwell Automation) 1756-EN2TXT industrial switch is A high-performance networking device designed for industrial automation systems. Here are some of the key features of this industrial switch:

Brand and manufacturer: Allen-Bradley, owned by Rockwell Automation.

Model: 1756-EN2TXT, this is a communication module, the specific model may refer to an Ethernet communication module, for PLC and other automatic control systems.

Communication protocol support: Ethernet /IP communication protocols are supported to ensure efficient transmission of data in industrial automation systems.

Port configuration: Equipped with RJ45 port, it is used to connect or implement redundant Ethernet network to improve the stability and reliability of data transmission.

Transmission speed: 10/100 Mbps transmission speed is supported to ensure that data can be transferred quickly.

Power supply and protection: with dual power supply redundant input, voltage isolation and reverse protection function, adapt to harsh industrial environment.

Alarm output: The relay alarm output function provides timely fault information.

Size and protection level: With specific dimensions and IP protection level, suitable for dust and wet environment.

Environmental adaptability: ESD immunity, EFT/B immunity, RF immunity and other characteristics, to adapt to various industrial environments.

Security support protocols: Support EtherNet/IP protocols to provide secure data transmission protection.