The IS420UCSBH1A is designed to be mounted directly into the panel metal plate, with the device's heat sink kept unobstructed to allow appropriate airflow. The front-end design of the IS420UCSBH1A has three Ethernet ports for connecting to the R/S/TI/O network, and three additional ENET ports for connecting to HNMI, other controllers, Historians, and point-to-point connections.