[Introduction]：E860-DTU(8080-400SL) wireless remote synchronous switch is a terminal device that realizes remote transmission of switch quantity through LoRa modulation technology, supporting 8-way acquisition switch quantity input (DI) and 8-way control relay output (DO). Its core function is to realize remote synchronous control without wiring, with high ease of use, which is convenient for users to quickly integrate into their own systems.