AC Series 8-Port I/O Expander BoardAC Series 8-Port I/O Expander BoardThe AC-IOE is an 8-Floor or 8-port IO Expander board that comes without enclosure and requires ACS-ELV or ACS-IO Starter Kit.FEATURESEight dry contact inputs (per door)Eight dry contact solid state relays (per door)UL and ULC Listed (UL 294/ULC S319-05)SPECIFICATIONSPower Source: 12V DC (drawn from main board)Contact Rating: 30V DC @ 500ADimensions: 3-1/2″ H x 3-3/4″ W