The IA-2115-U is an Intelligent USB Relay Controller board, with a widened Commands List, that is implemented into a tiny, DIN-Rail mounted board. The IA-2115-U includes 8 SPDT Relays and 8 Optic- Isolated Digital Inputs that may be easily controlled by its free software supporting package, or by customer’s self designed dedicated software. The IA-2115-U is a new Intelligent-Appliance Dry-Contact I/O module. Its RS-232 version, IA-2114-2, may be used as a stand alone unit in Peer-to-Peer application or as an ordinary slave unit. Most experienced support team stand behind these new modules, eager to assist you in case needed. The IA-2115-U Relays Common lines are bussed, providing an easy wiring feature. For unbussed solution of same size and relays amount kindly refer to the IA-2114-U.