/community-hubs/deltav-community-connect/b/delta-vweblog/posts/updated-deltav-sis-hardware-carriers-product-data-sheetThere are three types of carriers used for DeltaV SIS hardware – the logic solver carrier, the SIS controller carrier and the SISNet Repeater carrier. All hardware carriers are mounted on a T-type DIN rail. (695KB PDF) Read the full text.en-USTelligent Community 13