Communications and control software are at the heart of any reliable power quality solution. Eaton Relay Interface Cards enable automatic shutdown and network monitoring of UPS system status through a connected computer. The X-Slot Relay Interface Card is a dedicated adapter that provides the essential dry-contact interface between your Eaton UPS and any relay-connected computer, including the AS/400, as well as a variety of industrial applications. This card is compatible with Eaton UPSs that have X-Slots.