1, DC+: Connect the power positive pole (voltage according to relay 5V).
2, DC-: Connect the power negative pole.
3, IN1-IN2: According to the setting of each way, the corresponding relay-operating can be controlled by high or low level.
Relay output: there is a 6 wire interface, all interfaces can be directly connected to lead to facilitate user use.
1, NO1--NO2: Relay normal open, the relay suspends before pulling in, and then short-connect with the COM.
2, COM1--COM2: Relay common interface
3, NC1--NC2: Relay normal close, short connected with COM before pulling inand suspended after pulling in.
High and low level trigger option:
1. S1-S2 is the high level trigger selection of relay 1 Channel -2 Channel.
2. When COM is short connected with LOW, the corresponding relay is LOW level trigger, while when COM is short connected with high end is high level trigger.