1783-BMS20CL ,It is a specific model of an Ethernet Managed Switch from the Rockwell Automation Stratix series.
The 1783-BMS20CL is a layer 2 managed switch designed for industrial applications. It is commonly used in industrial automation networks to provide reliable and secure communication between various devices on the network. The switch offers a variety of features such as VLAN support, Quality of Service (QoS), multicast forwarding, and security features like port authentication and access control lists.