Channel relay module, with photoelectric isolation
The module can be high or low by a jumper setting trigger / low-level trigger (please select)
With power and relay action indicator
The module Operating voltage 12V
The module uses genuine quality relay, normally open interfaces Maximum load: AC 250V/10A, DC 30V/10A

DC+: positive power supply (VCC)(12V)
DC-: negative power supply (GND)
IN: The control end, the driving current should be more than 4mA
COM: The control of loop of earth wire