RAC18-IP |Free programable Room Application Controller, 1xRS485, 2xETH (fail-saf SKU: RAC18-IP Parent Item Parent Item - Additional Cost Has Item Option Details RAC18-IP | Free programable Room Application Controller, 1xRS485, 2xETH (fail-safe protected), 1xUSB, 4xUI, 4xDI, 5xDO, 3xAO, 2xTO. Power supply 24 V ... Documentation Data Sheet DetailsDocumentationBackRAC18-IP | Free programable Room Application Controller, 1xRS485, 2xETH (fail-safe protected), 1xUSB, 4xUI, 4xDI, 5xDO, 3xAO, 2xTO. Power supply 24 V AC/DC.Back Data Sheet