5X LAN Ethernet 2-Way Relay Board Delay Switch UDP Controller Module WEB Server

P30 - P35: CH3 - CH8 control lines, high level effective. : short and to the module power settings to restore the factory settings Positive 5V: + 5V positive power supply, input or output GND: power ground, input or output Blue Terminals: Connect user load, you can use 220V AC, or less than 30V DC equipment, which can not exceed the current standard load relay. Each relay has a normally open contact, a normally closed contact and a common contact, relay timely, public contact and normally open contact conduction; relay released, public contact and normally closed contact guide pass.AH893