The IA-3127-2 is an industrial intelligent 24-ch Relay Control Board, with 24-ch Digital Input and multi-drop operation capability, in the original IA-3131 foot print. The IA-3127 is an Industrial grade relay controller, includes both 'Wet' and 'Dry-Contact' input capabilities, both GND and Positive activating signals, easy operated, supported by a simple, yet, powerful software command set. Rich software support, including open source code samples and setting utility makes it fast and easy adaptable device. The IA-3127-2 is part of the IA-3000 Series. This series include Relay controllers, Digital and Analog controllers, usually equipped with RS-232/485, IP or wireless communication ports.